Plankton Portal Talk
The original object is in 3D and it is projected in 2D by the picture (i.e. laid on a flat surface)
Imagine an open perl necklace that you lay on a table: it could fold in various shapes. This is what happens here.
ISIIS images are supposed to be focused over the full field of view but that is only partially true 😉
Likely an old house that is probably very close (or far) from the camera and therefore completely blurry.
However, I don't think it would be as "spiky" on the back. Given that this is near the surface it might just be a detritus of some sort.
It could actually be a small crab. The late stages of crab larvae do look like actual crabs, except smaller.
It's a Clytia-like jellyfish indeed. Well spotted. I wouldn't venture on the species since I am not a specialist of those.
It is not an artefact, rather some sort of mucus coating. The inner part is likely a radiolarian colony or some sort of tentacle
Unfortunately, it is a just too non-descript to be able to say anything...
@suzeroo are you sure you got this one two months ago and not the adjacent frame? I find only one record of you classifying it on 2016-08-10
Cydippids are beautiful.
I'd say larvacean because of the lack of definitive fish features (such as fins etc.) but this one is difficult.
No, likely a larvacean out of its house (no caudal fin, round head)
I am scratching my head and coming up empty. No idea what this could be. I noticed similar images elsewhere but still cannot decide.
Now you can print that and make it into a wallpaper for your bedroom, to be sure to dream of plankton at night!
It's a bowline! (the only knot you need to know, really... Those radiolarians have sailing savvy)
They extend far towards the front so this could be a Gobiidae, Blenniidae, Microdesmidae, etc.
Cleanly fish yes. The features on both sides of the body are fins.
I confirm Jessica's thoughts. Cestida with no central line reminds me of Leptocephali fish larvae (eels, etc.) but it isn't this.
It's probably flapping it's "wings" underneath it's body (=> invisible) or is just hidden in it's shell.
If it's a fish, it's indeed moving. Could be.
Triple wow. This is a BIG house!
Difficult to tell. It is lacking a few features (fins, etc.) to be surely classified as a fish.
Certainement en effet. Elle est repliée sur elle même.
Not sure. @jessicaluo is the jellies expert.
They are also present in the Med, but not very abundant in summer (when the images were shot).
That said it could also be another sort of tunicate, like Salps.
These ones are deeper and this is compatible with them being larger.
Because of their striation I would think Doliolids. You are used to seeing the smaller ones, but those small ones are close to the surface.
Likely some kind of amphipod. But the body is clear so I suspect this may be a mould.
I'd go for piece of sipho over pteropod. Pteropods would be more opaque indeed.
Unfortunately, I can't help. No idea what this is, or rather was, because this is probably just a decomposing blob at this point.
The bell of P noctiluca can be up to 15-20 cm in diameter. For reference, the width of the image here is ~5 cm. So yeah, big!
I love those when the picture is so crisp.
... and the displacement bends their antennae.
As seen on the video, they don't use their antennae for propulsion. Rather they jump with their "feet" (swimming appendages)...
Wow! Good catch, I would have missed it!
In addition, it'll be easy to sort them out afterwards if they are marked but impossible if they are not.
Again, the reply took a long time sorry. Please mark them, At that size it could still be a baby fish.
Biiiig! Some stitching to do now.
...which makes me think of a early larval fish stage but that's not possible here (because of the size of the object and the time of year)
It is a very cool picture indeed! The prey seems to have a transparent structure around the body...
Very tricky. Good catch!
Except for the the 4-tentacled ones which have a well defined symmetry, the number of visible tentacles in the others is not well defined.
It can be broken off or simply retracted towards the mouth.
It almost looks like a montage. The one in front seems to have gone through some trouble...
Il s'agit en effet d'un détritus, non vivant, donc on ne le marque pas.
Il est rendu plus compliqué à reconnaitre par les artefacts en forme de vaguelette qui couvrent la gauche de l'image
very neat and very high definition of the larvacean's body.
Shiny an biiig
There seem to be a thin fin-like structure which runs along the right side of the body, under the central curvature of the "S".
Sorry to reply so late. Yes I'd call it a fish too, even though it is very difficult to be certain because of the blur.
... but it may be a similar type of organism
Good suggestion yshish, although compared to the video, this one is lacking the tail-like part, has too many "mustaches", and a too thin gut
Bit of a sipho?
En effet, les radiolaires sont fragiles et abimés par les filets. On ne les retrouve pas dans les échantillons de plancton "classiques".
Un article sur cela est sur le point de sortir dans Nature. Il a été construit à partir de données de génomique et d'imagerie (comme ISIIS).
Les radiolaires sont très abondants dans l'océan, à certains endroits, d'avantage que les copépodes (qu'on pensait dominants partout).
Likely p** indeed 😉
So we agree actually, which is good!
Likely a nudibranch indeed. Very cool find!
No idea! R-S = radiolarian solitary? Probably more a piece of a jelly, like a sipho for example.
No idea. I'll ask around.
Could be a slap chain but is a bit small. I don't see another obvious possibility.
Overall the Med is poorer in food compared to the California current (i.e. more oligotrophic) so one expects less biomass.
The species of copepods that live in the Med are known to be quite small.
Yes there may very well be. I thought the "cheeks" were to side parts of the bell.
I think it's a Cydippid, slightly out of focus. The general shape, the place where the tentacles branch out, etc. are all compatible with it
Its "stomach" would be at the center of the bell... so she probably just puffed her cheeks 😉
Very nice one!
Wow, big big one indeed. Probably genus Cavolina.
ISIIS captures an image over a ~ 10 cm window so it is not surprising we missed it (unfortunately!)
Given the size of the tentacles, it is likely that the body was several tens of cm (or even a few m) away.
Decomposing, reproducing or taking a s... defecating 😉. I'd go for the first or last one.
So overall, it'll be classified as fish, for sure, but really... ????
and seems to match the bottom "fin" which is also misplaced for a pelvic fin
What you think is the dorsal fin (top side on this image) is way to far on the body
The other one was not very clear but on this one it's difficult to say anything else than fish. Still some things don't really match.
Definitely #ephyra for this one.
Yes indeed. I'd say those are buds detaching from a large doliolid on the top left.
Never switch datasets, just stay in the Med, it's nice and warm! 😉
It's decaying and losing its shape (and emitting mucus) in the process.
Yet it is less than 5 cm long, including the tail part. Beauty is in tiny things!
A frame for @collodaria
hum, less cute then...
The middle thing does not look like a zooid.
What's interesting in this one though i that it looks like an appendicularian is caught on the sipho's tentacle.
In the cal dataset, the frames are indeed not contiguous. Some are in the Med dataset (but not all)
Krill gets marked as shrimp so that's fine!
Very likely an #isopod indeed
This ephyrae again as a creepy face in the center!
Not a polychaete (too small, too thin and too tangled). Possibly some aggregated fiber-like phytoplankton.
I'm assuming you don't mean the very obvious cydipid but what's between its tentacles.
I care about the larval fish! 😉
Great, I needed a neck pillow for my flight back home. Just found one!
I'd say some sort of shrimp.
Rather <1 inch. The full width of the image is about 2 inches.
And perfectly aligned!
Or N ?
... was better than everything else he did since then (the Med cruise among others). He was touched by the gods of photography and optics!
We discussed that with cedric this week end (the engineer behind ISIIS). He does not know why but the image quality on the Cal cruise ...
Immediately below is a copepod. Brighter and lower is something else... I have no idea what.
Salvador Dalí reincarnated!
Yes, good guess.
We only see the big ones with ISIIS (so on the images here).
Good for you, those are indeed very common (probably the most common pluri-cellular animals in the ocean).
I am actually not sure this is a fish. The "mouth" part seems too big to be one. But what else could it be...
We may do some digging in Talk for some of the tags later but that surely won't happen at first and for all tags.
An important distinction between tagging and marking is that the data we get for the science is the marks only.
Then again the bottom part, which I just saw, has something that looks like a tail. But it may be too opaque to really be a fish tail.
Probably not a pteropod either because the wings would be less opaque and the shell more "pointy".
The large bottom stuff? Not sure. Not a fish (at that size, the shape would be well defined and this is not defined enough for a fish)
Too small to tell the difference with a larvacean; so small in fact that it is more likely to be a larvacean.
Based on the other picture rather than on this one, I'd say a (late) nauplii larval stage, possibly of a barnacle.
The salinity sensor lagged on the beginning of the descent (depth is 4m here) and we removed that data to avoid artifacts.
Because, well, we... kind of uploaded wrong data 😉 It's probably not wrong but just missing and 0 gets displayed on PP.
It's very likely a #pteropod, of the genus Creseis, with its "wings" spread along or retracted inside the shell.
Or maybe it's a longhorn cross-breed. Definitely a possibility.
The bent in the antennae is because it's moving (jumping!) forward. Some even bend all the way to the tail, making nice heart shapes.
Hopefully, after this rush is over, we'll have time to exploit PP data more and keep you updated regarding the science you make possible!
...because most of us became busy with other things (two PhDs based on ISIIS data will be defended on Oct 30 and Nov 5).
Keeping the interest for PP is also up to us, scientists. I think @yshish has had a though job over the last year or so (at least)...
Definitely need to liven up that blog. I can't post there yet and I won't be able to deliver posts on a weekly schedule but I need to start!
very cool! (and very deep too, almost 100m !)
Still, likely to be a protist 😉
Yep, genus Cavolina. Nice!
Definitely a shrimp. Sorry 😕
Nice bow tie! No, there is no category for those.
Yes, an old one for sure.
Wow good catch. It's even hard to see if it actually is an ephyrae (but it sure looks like it)
"shrimp" is a morphological category on PP, it corresponds to various actual taxonomic groups.
It is indeed a "shrimp-like" organism in an escape posture (and blurry because of its movement).
Yes, definitely a shrimp
I'd say these are damaged pieces of a sipho indeed.
I agree, you can even (but barely) see the combs on the bottom side (Ctenophora = comb jellies)
I would have said this is jelly tentacle but the abrupt end shown on one the pics linked below makes me doubtful. Still I have no better id
But anyway, it looks like the best id then! Thanks!
Such fragile extensions would probably be destroyed in a net.
I had never seen tentacle-like extensions of the body like on the 4th image. I guess it is because I mostly saw specimen caught in nets.
Thanks for the pointers. I had seen shell extensions like that of the Cavolina specimen (3rd photo in the linked page).
Nice "pumpkin" one.
I won't (can't...) go further than Ctenophore. Sorry.
I haven't seen pteropods with such long antennae/tentacles. Those look rather like juveniles jellies. Where do you get the pteropod id from?
really hard to tell. I'd say the straight bit is tentacles rather than a radiolarian colony (not thick enough and no structure inside).
Yes, they are likely to be the same structures yshish
(hence the many remaining frames of marine snow!)
The very transparent ones are hard but, for the Med at least, which I know best, we were very conservative in picking the images
Really looks like an angel indeed!
uhh, sorry but where do you see a Pteropod?
No idea. Strange indeed. Jessica would be best to ID these "jellies" from California. I asked her (but she's busy with the end of her PhD).
And nice copepod at the bottom right
I'd vote #Medusa but it's a hard one indeed.
Hard to be confident in the #larval-fish id with that much noise but it may indeed be one
Therefore the cells may really be smaller on one end
The camera in ISIIS has no perspective effect so object size does not change with respect to the distance from the lens.
Yes clearly medusa. Maybe juvenile Pelagia seen from below.
Yes, if it really is in the same plane as the house, it might be feeding out of the particles on it.
And not all tentacles are there.
It probably is at the limit between ephyrae and juvenile. I would still classify it as ephyrae because the bell is not completely formed.
In reality, you would have possibly several hundred frames of marine snow for one like this!
Now consider that all frames here on PP where selected by an algorithm because there was "something" on it.
😃 larvacean house is indeed way more likely!
These are fully formed, even though they are small, so indeed, they are not ephyrae stage anymore.
It probably is a single organism indeed. Huge!
Probably a crustacean but difficult to say more than that.
It is a #Pteropod indeed, probably genus Cavolina.
Probably a very blurry/noisy young sipho.
It is gorgeous indeed. But even with this resolution, telling the species may be difficult.
I'd say it's a protist caught into something.
This is one. You can clearly see that the mucus surrounding the cells is continuous.
It is more #mystery than it is #Salp really
Probably #Trichodesmium indeed
I would have said one at first sight but looked into it more and would say two now.
that look a bit like this (the phytoplankton would be the white dots) but this looks quite large and not regular enough for this.
A discarded larvacean house of this size would probably be less clean. There are some colonies of radiolarians with symbiotic phytoplankton
That all looks like medusa to me too.
Very nice indeed. I've asked Fabien for an ID.
It's indeed probably too blurry to ID with full confidence but I would not say appendicularian, even based on Ben's old post.
ISIIS works as a "shadowgraph" and what you see here is similar to https://en.wikipedia.org/wiki/File:Shadowgram-gas-grill.jpg but in water!
Water at the surface was much warmer than at 20 m.
Those are created by differences in water temperature (hence density). They occurred between 5 and 15 m in the Med cruise.
That, combined with the fact that most scientists who started the project are not protists experts, explains the decision.
However, they are also very diverse and most are very small (and not seen by ISIIS).
Yes Protists are very important. Some groups are included as target in PP (radiolarians).
space junk 😉
But shrimp is a generic word that covers many species in many different groups (this one is probably krill actually).
The isopods would not have such long legs and would be smaller. This is indeed a shrimp.
The shape is right for the side view of an ephyrae but it would be a small one.
When some images are IDed they are taken out and new ones enter the batch. I dont know the size of the batch and the frequency of update
A subset of images are selected, within that batch they are presented randomly.
I'm not sure of the details either. That would be a question for zooniverse staff. But I know they don't release the whole batch at once.
The small stuff on the right is probably a fecal pellet (= poo). Yes, the sea is full of sh...
Likely, or just disrupted by the movement of the water around ISIIS. Siphos are pretty fragile.
I'd say it is a radiolarian colony (or just a long thin fiber) hidden in density anomalies (i.e. noise). A polychaete would be thicker
The ones with long "spikes" like this are probably from the genus Cavolina. The long and thin ones are from the genus Creseis.
Basically, "with tail" really means "with tail and buds on the tail"
...there's a picture of a doliolid with a string-like tail, like this one. So it should indeed be a "without tail".
Following that discussion, we changed the images in the field guide to address this question. If you look at the without tail category...
A #radiolarian colony, albeit not a usual one.
Indeed, very neat!
There are appendages near the front end and the top side is somewhat irregular, like there are other appendages, so I would guess shrimp
See: http://talk.planktonportal.org/#/subjects/APK00096ci or http://talk.planktonportal.org/#/subjects/APK0005qhd
No much much too small. Cestida would take up a large part of the frame.
Nothing that can be determined I am afraid.
indeed, one or the other
Not marking it would make us miss it completely. That is very much worse!
Definitely mark it as one of the two. The consequence of mistakes is just that the image takes longer to reach a consensus.
#rocketship for me too
And a big-bellied copepod!
There a chunk of mucus with some detritus stuck on it but no living organism. The bent shape on its left is just another detritus.
I'd say the one on the right is a doliolid with 1-2 buds (on its left side). The one on the left is some sort of protist / algae
Arrow-worm. If it was a fish the "head" would be the bottom part here and it is too thin/small to be a head (and there's no fins close by)
En effet, doliole (chouette un(e) français(e)!)
and so the right border is the limit of ISIIS f-o-v
more noise in the center of ISIIS field of view. ISIIS f-o-v is cut in the middle. so this is the right part of the frame
You won't be able to find the other frame because this side is the limit of ISIIS field of view (based on the noise:
Lots of stuff. very cool
The small stuff on the right. I'd say it's too small to be a doliolid with a tail.
In the middle? I'd say it's nothing (some sort of fiber) because there's no real structure around the head or near where the fins should be
Everything here is too small to be either a larval fish or a larvacean. Sorry
No I think that's something else. It's not fully opaque and there is no evidence of a decaying structure around it.
It also looks like a face... when you gaze long into an abyss the abyss also gazes into you. Creepy...
Yes, pretty likely to be a #pteropod
Too difficult to tell with all that noise. Could be an arrow-worm, a polychaete, ...
And a fuzzy radiolarian
Indeed, better not to mark them. Just tag them on talk if you want.
Another protist probably 😉
I'd say sipho too, and rather a two cup but @yshish would know better on such a small piece
This was a nice try, those are pretty close.
It actually is barely smaller. This one is about 1cm, a 10 w foetus would be about 3 😉
There was a long discussion about another one looking like that but cut by the side of the frame. This on would help close the discussion.
I'd alo vote for salp.
It's a bottle-opener!
Indeed, those would be #rocket_ship in planktonportal-talk.
It is having a bad hair day. That's why it's angry!
So if it is a cestida (which I agree it looks like) it would be a small piece of one.
The other part is http://talk.planktonportal.org/#/subjects/APK000894b
The distance from the camera actually does not mater in ISIIS. The light rays are parallel so the size is the same no mater the distance.
no idea unfortunately...
See it above a burning candle https://www.flickr.com/photos/adamadam/468438073
or behind a bullet https://upload.wikimedia.org/wikipedia/en/2/20/Supersonic_Bullet_Shadowgraph.jpg
Shadowgraphy (the technique used to take the images here) is (unfortunately for us!) very good at picking those up.
Yes, this is basically deep cold water being mixed with surface, warm water. The differences in density show up as this.
The camgera glitches would be perfectly horizontal and completely white. Those are more "organic". They are tentacles of #pelagia indeed
I'll let you know as soon as we've run the DNA.... bing... It's back. There was only human finger grease on that picture, sorry.
Indeed very crisp
They are pretty rare indeed but we've already seen a super cool one (can't find it again, although I am pretty sure it was tagged!)
Yes, moving so fast it is blurry even on ISIIS images
The thing next to the tentacles of the cydippid may be a small radiolarian colony
Too decayed to tell
I am not even sure the thing next to the copepod is a larvacean
Indeed, most radiolarians don't actually feed. They host symbiotic algae which photosynthetise and provide them some of the glucids produced
very crisp indeed and the tail part probably extends to other frames we have
I'd day both are the same indeed
I'd go for doliolid too but I don't think the "body" (i.e. the nurse individual, the larger one) is visible anywhere.
Yes indeed, it is jumping
I'd go for sipho too
Cthulhu is eating all the baby fish. I don't like Cthulhu! 😦
Wow. I'd say protist but the "tentacles" are very long and visible. @Collodaria?
Yes, that's probably the best course of action.
The small one could be trichodesmium indeed.
It very probably is a piece of something dead.
... transparent pieces of the tail, often because it is seen from the side. On this ones you see it perfectly.
All larvacean have a wide tail (which beats and creates the current that sucks the particles in their house). On most you don't see the ...
Yes we caught this one dead center in the frame
Could be a sipho but again the left part does not fit very well with this. I've asked for a bit of help.
I don't think it is a salp; it does not have the opaque blob I would expect and the pointy ends on the left don't look appropriate either.
I'd say two cups
In addition, I think this one's body is disintegrating/disintegrated.
Like larvaceans, when they don't have much to eat (which is the case in the summer in Med) their body can be quite transparent.
Probably is a pteropod indeed.
Oh clearly it looks like the other ones you posted. Those may very well be more developed stages after the ephyrae stage. Fabien?
Yes it is a camera glitch
From this one alone, it's difficult to say anything.
This might be the white blob here, with gelatinous parts around it shattered. It was clearer in the other image (which I cannot find again)
I would expect the salps in the region to look like this: http://goo.gl/ErKSzm The only opaque part would be the coloured bit on the image
It's another jumping copepod
I'm not saying it is noise. I am saying that, because it is masked and altered by noise, it is difficult to be 100% sure of what it is.
It is a #radiolarian #colony, they can actually be very very long, much longer than what's seen here
Indeed, the ones in the examples have a rounder shape but you can still see some defining features such as the bands around the body
The bottom part could be a ephyrae distorted by noise. It's big but possible. What makes you say medusa >4 tentacles?
impossible to be sure with just that portion in such noise
This reminds me of another frames where I suggested that this might be an exploded salp. But it is even more difficult to be confident here.
There are very faint marks of a larger gelatinous portion around the opaque part (on the upper right of the organism in particular)
No pteropod here. On the bottom right, it could be a very small zoe stage of a crustacean, or a larvacean, but it's difficult to tell
Which does not sound as good as seadragon but they are still pretty cool. Very delicate.
...are full of "stuff" so you might have a few like those, sorry. Indeed, you need to look carefully.
...above a hot road for example). Those frames are very difficult to automatically filter out, because they look (to a computer) like they..
I don't see anything that needs to be marked in this frame. The white bits are created by differences in water density (like you would see..
The next frame shows this is the whole organism. So it might be a piece detached from a sipho after all.
There is a more opaque part inside but the outside does not look like a salp body. There actually seem to be two pieces.
😉 yes, you'll get bored by the huge solmaris after a while (well you will just find them "normal" I guess)
And the neighbouring frame is http://talk.planktonportal.org/#/subjects/APK0008g40 so cydippid!
In that case, it is impossible to tell what those tentacles are (without the neighbouring frame)
We don't need you to be sure to mark something but we do need you to be quite confident.
The advice you got was good: when something is cut on one side, mark it only if you have features that lead you to an identification.
Indeed, because of the noise it is difficult to be positive but it does look fishy.
I am actually quite surprised to have one (possibly two by now!) in those pictures
So we only described the most common (and easily recognizable) in the field guide. #phronima are pretty rare.
Plus, species in the plankton number in the thousands, higher-level taxonomic groups (like copepods, pteropods) still number in the dozens
Based on yshish images and my previous impressions, I would go for a shrimp-like organism.
Of course this is all pretty advanced criteria, and we clearly don't expect this level of detail. But if it is not a fish, then what is it.
...and the species with such huge fins don't have such round heads. Plus I don't see a trace of a mouth
@mkmcguir I agree that it looks very much like the side view of a fish. But the caudal fin is not right, the pectoral fins would be huge...
Wow, big one!
Yep, pretty sure indeed.
They are all predators after all!
I'm not sure a pteropod would love hugging the tentacles of a cydippid, or the cydippid have its body hugged by the wings of the pteropod
It is amazing indeed.
Still no idea what this is. In real life it would be perfectly horizontal (top is on the right of ISIIS frames)
...where your advice is most needed.
Also, I really hope the next talk will allow to easily see in which conversations one is mentioned. It would be much easier to track...
He told me he would try to spend a few minutes on Tlak every day but Tristan is finishing is PhD so he may be getting kind of busy 😉
Yep, definitely a fish. The body shape, the protruding eyes, the pectoral fins... everything points towards fish.
No pteropod indeed. But the depth is not likely to be a criterion for these anyway. They could be that deep.
Very clear indeed
Very likely indeed.
Definitely not a larval fish, they wouldn't take this hook shape.
It is a #cestida. Why do you think it would be feeding?
Me neither so you're alright 😉 I'd say some kind of dead jelly.
Difficult to be 100% sure in that noise but it sure looks like it.
Beautiful little guy
Not a fish. Not confident about larvacean either (the "head" is not very detached form the body and the tail is quite opaque)
It is likely it was hit by the instrument or the flow around it indeed.
Unfortunately, given how much noise there is on the frame, it is difficult to tell. It could very well be just a twig-like detritus
And the head would look something like this: https://www.dropbox.com/s/m9jc2cig83dou21/ab4d5a51938a0c1ec6430ba8acb999e9.png?dl=0
Here is another one (it thought it was the same but it does not seem the case):
I'll ask around.
Very difficult to tell. It could be a bent shrimp facing the camera but I don't see antennas, I does not really look like a pteropod.
The bottom one is very well defined indeed. The top thing is actually also a copepod I think, but in a jumping posture.
No idea either. I cannot find the neighbouring frame to check...
The thing that sticks out form the right of the frame... no idea. Very possibly not a living organism
The long vertical thing is a tentacle of a large jelly which got stuck on ISIIS. The small round thing is probably a doliolid.
Too blurry to tell unfortunately
It seems to have combs (the edges of the body appear serrated) but I don't know comb jellies which would look like that.
I don't think it is the same as the other frame (see my comment there). But it does not look like a sipho indeed.
It is really cool to have one so crisp
That is definitely a #phronima inside a salp barrel (well as "definitely" as we can get on images alone).
Might be #fish, now that you point the weird rhizaria. Difficult to be confident though!
The long thin thing is some kind of fibrous detritus. To thin for a fish.
Quite small for a shrimp. Given the noise in the image and shapelessness I would go for "blob" 😉
Difficult to tell because of the noise but we tend to classify this general shape as #fish I think.
yes, I'd say fish. It is somewhat out of focus hence the unusual shape.
It's great that you flagged it here though.
In any case, it is not typical, not common and therefore not a big deal if you don't mark it correctly with the identification tools.
Tentacles seem retracted or missing, which is possible if it is dead/dying.
I'd say some kind of medusa, its "cap" pointing down on the image. You can see some arms on the top side.
Here is the full image: https://www.dropbox.com/s/eibjug3vb9lqfnm/5554c54f69736d6bf80010c8_full_full.png?dl=0
I probably is too opaque for a sipho. I'll try merging the images
I'd say that's correct too
It is a #pelagia noctiluca. They are big indeed, quite common in the region and unfortunately very stingy!
It is very cool indeed!
On the left of the medusa right?
I'd say #ephyrae from the side
A "something" is a nice ID. A nice something in addition. But what...
It is an #ephyrae but seen through a lot of water density anomalies which give it this weird shape (and create all the noise around it)
wow, congrats @yshish, no way to tell without the other end!
This one is for @yshish !
Beautiful. I've never seen one like this before in the Med I think
I don't think I was really clear... I tried 😦
More noise on the right side here means there's a picture on the right, but not on the left.
NB: I can tell the bottom is the bottom of the actual ISIIS frame because "noise" is often more visible in the middle of the ISIIS frame
I'd say a shrimp though, because of the size, the blur, the slight "edges" on the bottom of the body (which would be the dorsal side)
Without the rest of the body (which is very likely outside of the field of view of ISIIS) it is impossible to be definitive
The full width of the image is about 5 cm so the body is about 2.5 cm, then there's this long "tail" which probably extends a few cm more
Very clear indeed.
I don't think it is identifiable
And plenty of small copepods on the top right too
It would mean that the organism was actually outside the frame, so we never caught its "face" 😦
These are tentacles of an adult #pelagia noctiluca. They can be several m long.
Which one? 😉 Neither is an ephyra though.
I don't think so. Maybe a medusa seen from the side and without tentacles... but that's a long shot!
The camera setting makes the Med a 120% zoom compared to Cal, i.e. a 20% size increase; which is not enough to explain the size difference
The "star" metaphor is particularly appropriate here, at zooniverse!
FYI, here's the latest talk by Tristan (@Collodaria): http://www.sgmeet.com/aslo/granada2015/viewabstract.asp?AbstractID=26850
😉 He's getting poetic.
Very nice image! We had a layer of this big shrimp-like organisms that was a couple m thick but spread over kilometers.
Very nice find indeed. I had never seen one this big/well defined either, and we never caught them in nets.
The center of this one is not round and opaque enough for it to be a radiolarian. For the frame linked to by Kristen it is harder to say
Probably not alive; not a radiolarian colony.
Medusa more that 4 tentacles. Likely arctapodema
I was re-watching Star Trek when I read the comment. What's the probability of that!
This is definitely a larval #crustacean, Lobster is possible (there are some in Med, although they are very rare)
I can see a halo around. This is definitely a #radiolarian (try reducing the contrast/gamma on your screen)
It is very likely a shrimp which is moving together with ISIIS and therefore appears stretched and somewhat motion-blurred
Yes #radiolarian-colony. Too bad, a P-shaped Polychaete would have been cool.
So it probably is piece of a cestida indeed, but there is no way to tell (and it's not a problem because it can be IDed on the other frame)
The faster you move, the more water you see per unit time.
Also, to get quantitative estimates of the concentration of organisms, one wants to observe a large volume of water.
I have and I agree the right part can evoke a radiolarian colony but all the rest does not.
Indeed, pteropods may be bigger (most are I would think).
It kind of has wings but the shell would be pointier (towards the right hand side)
That would adequately describe 90% of the content of the ocean 😉
Anyway, it is a nice collection of "stuff" there!
... and the head a bit too small and too aligned with the rest of the body for my taste.
While it has many characteristics of a larvacean (opaque head and central line), the "tail" is a bit too round...
It is not Beroida indee but it is actually difficult to tell what it it. It might just be a bunch stuff glued to some mucus.
(then again, the example images of Copepods just above a bit misleading because they all are of quite large copepods).
Indeed, impossible to tell. Probably too small for pteropods though. Check the scale circles on the field guide. Most of them are quite big
Plus, by the time they look like this, I guess Ophiurids are benthic, as your remark suggest. So the mystery is not solved!
The arms look somewhat like a ophiurid indeed, but they would become finer towards the ends, not end abruptly like that.
When you realise this is taken in situ, from an instrument moving at 4 knots underwater, it is even more amazing. @cguigand, you rock! 😉
It is beautiful. #fff indeed.
I don't see remains of the round radiolarians. It is surely some sort of left-over mucus but of what?... There seems to be a lot of it!
Beautifully crisp this one.
larvaceans would be smaller (they can be big but the ones here are smaller) and would have a larger "head"
The fins and "tail" are visible on this image.
#arrow-worm (big one!). You can tell from the translucent body but opaque end.
Pteropods would be bigger.
No, it is a #copepod, albeit very blurry. You can still see the antennas radiating horizontally, at the bottom here.
It might actually have been hit by ISIIS, hence the "melted" aspect... Sorry Cestida...
No, no example (that is part of the problem being definitive about this image).
Not a fish, indeed. Actually, probably a front facing, moving copepod. When they move their antennas fold along the body.
And #larvacean in it.
It is probably just a #larvacean in its house. but very blurry.
See explanations about the scientific denomination of things to clear the hyperiid amphipod vs. phronima question in this science discussion
Indeed, those are pretty big. Still, smaller than this one and not exactly the same morphology/symmetry. What is it then?... mystery
I've expanded by point of view in a post. See link on right side here ->
I've seen those zig-zag patterned sticks elsewhere, without the dark part they seem connected too.
This is (much) too big to be Acantharia. My guess is that it is a combination of various things.
A bit too small and no definitive fish clues. It is (unfortunately) just a bit of poo I would say.
Yes, Phronima is the genus name. See the full classification at http://en.wikipedia.org/wiki/Phronima
Yes, one or the other. Likely algae given the translucency (but it is deep!)
So I would definitely mark it as a #fish too
(the place where the body bends near the caudal fin in particular)
The bulging part towards the top could indeed be the gut. The general shape is "fishy" too
The difference is difficult to describe. I guess it is a collection of small clues. The head is marked by the pectoral fins (towards bottom)
Nice flagship image too, with the crisp sipho and big doliolid.
Where exactly? The big central thin looks more like a #cestida.
(they would look quite different here than in Cal). But they should be pretty rare this time of year.
Given the shape of what's around, it may be an opaque portion of an otherwise very transparent animal. It could be a salp
Should be soon. @DZM might know more. You'll receive it I guess!
Looks like a filament of some kind, maybe a jelly tentacle.
Actually, at this stage (quite young), even under a microscope telling the species could prove difficult.
species, surely not. family... maybe. I could tell which families it is not. But it could be several families still.
I really don't know. There aren't may features by which to categorise it.
I haven't asked. You should. Just bombard him with personal messages
So they look clear. When you see them from the top or bottom, you look through the wide side and they look more opaque.
They are thin in one direction and wide in the other. When you look at them from the side, light goes through the thin part
I's say a non-side view of a doliolid.
(the side with the tentacles is the top side of the image, the rest of the house should be in the bottom side)
The house is huge! The other part should be somewhere
...because the tentacles tended to get stuck on ISIIS and we imaged them for several minutes.
The tentacles (right) are from an adult Pelagia noctiluca. You may see many pictures with those...
Yes, they can be huge: https://www.google.com/search?q=ceinture+de+venus&tbm=isch
I don't have a better idea so I would have gone with #pteropod too.
Anyhow, they're just one category now! (it was too unreliable to tell them apart).
Indeed. I think I read that from @jessicauo initially. But your arguments are sound.
Very likely the front (or back) view of a #shrimp or an amphipod. I would go with shrimp given the size.
Looks like one unit of a #radiolaria #colony but I would not mark it here
Possibly #acantharia ? @Collodaria?
A detritus of some kind; aggregated marine snow.
It may be a little small to be one. Not sure what it could be.
You have much better vision than I have. I would have missed this one!
It is neither indeed.
Could be a chain of diatoms (phytoplankton) or poo of some kind.
I'd say #acantharia
Too small for fish. Too small (and out of focus) for being able to classify it as anything actually.
You don't see the connecting parts here because the organism is somewhat out of focus. But i would definitely mark this as one organism only
Again, ask @LombardFabien to write a small text to go with the image for the readers of #dailyzoo.
Looks like it indeed.
That would be a very small one.
But we need more data (like this) to back it up!
With ISIIS our first findings seem to show that they are actually quite concentrated but in very small areas.
Indeed! possibly two in the same frame. That is kind of amazing. Larval fish are considered to be very diluted in situ.
Not sure what you are referring to...
A lot of noise (water density anomalies actually). We try to filter those out but it is difficult to not throw away organisms with them
Yes, it does not fit in the categories.
Another space ship, racing against the siphos!
Yes. marks it as #radiolarian #colony.
Not sure what it is at all...
Yes we mark those as #fish indeed. The diagonal stuff in the middle is weird but according to @cguigand that's probably refraction.
Possibly #pteropod but quite blurry...
A small #cestida seen from the top I would say.
Probably a broken #sipho indeed, and possibly a #rocket-ship but that is more difficult to tell. Beautiful details in any case!
Yes, it probably is a single #rocket-ship but damaged.
No need to mark those indeed. I think @Collodaria could ID all those too.
The zoom factor of ISIIS was slightly bigger (2048px = 10 cm instead of 12.5cm in Cal) but that is probably not all the difference.
It is easy enough so the others should not miss it and we'll get the classification eventually. Thanks for reporting the bug!
The sipho itself is not one organism, it is a colony of organisms, as you probably know by now http://en.wikipedia.org/wiki/Siphonophorae
No just the main one. The "buds" may be plenty of things in siphos: new organisms, specialised individuals etc.
Strange indeed. The one cut is definitely a #crustacean. The one with tentacles is a small jelly, more than 4 tentacles in that case.
I'd say you guessed right
Google "collodaria". Anyone coming up with this as their pseudo has to be obsessed with them! 😉
Regarding #radiolarians, I trust @Collodaria who is currently finishing a PhD on those organisms.
I find the halo in the other image to be more pronounced than here. Here there really is just a line around the central part.
And blurry #cydippid
Ask @LombardFabien to write a blog post about narcomedusae from all these images.
(Anyone catching both references is probably a parent 😉 Old enough to know the second and has kids who know the first!)
This one really looks like a #rocket-ship! To infinity and beyond! Beam me up, Scotty!
And they are the kind of organisms that would be destroyed by any collection device. In situ imaging is the only solution here.
(BTW, the leptocephali is a stage in the development of all eel-looking things, not just actual eels: also muraenidae, congridae, etc.)
No idea what it could be though...
I don't think so. Eel larvae would actually be much more transparent and flatter when seen from the side (this looks like a side view)
what are you referring to exactly?
And this one is having a really bad hair day!
Does not look like it. It lacks the "arms".
I would say one. There seems to be a bit of "branching" but that probably does not matter here.
Beautiful details. It looks huge indeed. It is probably about 3 cm in diameter in real life though!
It IS, very clearly this time!
Exactly: translation propagation, debugging etc. The mailer by zooniverse is ready. We need to prepare a blog post. Thanks for the feedback.
It really looks like a small #pelagia. Fabien?
Beautiful. #fff ?
We should make that a new category 😉
I'd say both are small #rocket-ship #sipho
And typically something we would miss in a fully automated classification because of all the noise around it. Thanks planktonportal!
and the bludgeoning thing on the bottom left would be its gut. The caudal fin on the next image looks weird (absent actually).
It looks like a larval engraulidae indeed. You can almost see the fins on the bottom right side
I've asked around. Nobody knows... so far.
Mark what you can, ask when you can't and you'll quickly become proficient... that's the plan anyway!
Don't be afraid of mistakes, 5 people need to agree on an image anyway.
They are the inspiration for the alien in... Alien! brrr...
the symmetrical parts at top and bottom would be the jelly. The phronima is in the central tunnel.
They live in salps or other jellies they kill. The opaque central part would be the organism
It is not super crisp but it looks like a #phronima. Those are just the coolest plankton creatures (...after fish, fish are just too cool)
Help replied 😉 It is not a radiolarian. The shape is a bit too elongated but most importantly there is no halo around it.
Here it means the width of the pp images is ~5cm in the Med and ~6.2 in the California current.
Its is physically the same instrument but some settings changed. The height of he region filmed is slightly lower.
I think the distance between the pods is > 50 cm but the portion actually focused enough is less than that. It may be around 40.
Indeed, the "wings" will be somewhat transparent. But the shell (the pointy part) should appear quite opaque.
Yes. First one here I think.
Indeed. Didn't notice, thanks!
Looks strange indeed. I've asked for help.
It corresponds to a more transparent section of the animal and probably refraction of the light that lands on some structures of the fish.
Probably fish indeed, but as pointed out, they are difficult. Often there will be a black diagonal line across the body, a bit like here
Yes, beautiful small pteropod (and plenty of #doliolids also, of course at ~1.5 m depth)
If I am not mistaken, the thimble and rocket-ship are actually two stages of the same group of organisms (thimble = young ones).
Let's go with fish then. Fish makes me happy! 😉
fishy indeed, but in all acceptations of the term! Those are really difficult...
The pointy bit is a bit too transparent for a pteropod. Plus, the category does not exist in the California dataset, does it?
But they may also be close to each other and fighting. In which case my bet is on the left one, it looks bigger! 😉
Also keep in mind that ISIIS' field of view is 50 cm deep and non parallaxed. So these two case who look superposed may be 30 cm apart.
Jelly fish would not need to "mate" like animal with internal fecundation. To mate they just release sperm and eggs in the water. Easy!
That's what I would do too.
thin, not think 😉
Nice. Not sure what it may be with so many think appendages.
I'd say arrow-worm too
Another reason to just mark everything you can recognise on every frame!
In the other one the sipho looks higher in the image I think.
Given the way the images in the Med are generated, the sides should match exactly without vertical shift
These are more opaque parts of its filter, probably because of accumulated particles in those. It'll have to leave the house soon!
More like gunk caught in slime 😉 The ocean looks a lot less engaging this way, doesn't it.
Top is hard to tell. Could be a #crustacean (isopod?) also.
Center is probably a cydippid indeed.
Looks like some sort of small jelly fish because of the tentacles and size. I've asked a jellies-guy for help. Hopefully he'll register soon
For the corncob, I wouldn't know from just this portion of the body but I trust you, you have seen many more than I
The id for the rocket ship seems difficult given the size. It would also be a doliolid w/o tail seen from the top
Probably of Pelagia noctiluca, a medusa jelly fish.
Not sure what it could be. It might have been alive but is now too degraded to tell.
Again, never seen one like this before. And it is only day 2 of this data on planktonportal! Yay!
The flat body and protruding eyes are quite telling, for the phyllosoma stage.
Very nice find! The large one, on the bottom right, might be a #lobster larva pointing down on this frame.
I am not sure which one you are refering to @yshish. The one near the top is a #doliolid. I don't know what the one cut on the left side is.
I've started an official discussion thread on this, for easy reference.
Too small to really know. Too small for a pteropod in any case.
Very nice find anyhow. I had never seen one this big and with so many details.
The bright regions are parts in which the colony is aligned with the field of view of the camera and is superposed to itself, hence darker
I don't think those colonies can branch. It probably is just "folded" on itself.
Yes, it is an aggregate of some sort.
I think the other half is APK0007f0u
I don't think so either. It is difficult to say where the larvacean is. It may not be there anymore.
Beautiful #pteropod indeed! Likely Creseis (from my poor knowledge of those)
Likely a #protist indeed. It is biiig though!
...nothing should come out of it like this.
The structure on the top left side of the body is difficult to understand here. If this is a fish, it would be its belly and...
And then I overreact and try to find evidence that everything fishy-looking is actually not a fish.
I am always ambivalent about fish larvae. I so much want to see some that I tend to find that everything looks like one.
Oh, indeed. You've got good eyes!
I'd say a very small #cydippid
I am for #doliolid too
Plus, I am not sure you missed anything. Where would that copepod be? Can't see one.
Difficult one. Somewhat out of focus. The bottom right is clearly something, but what... The middle thing may be an arrow worm, not sure.
This may be one indeed.
Plus the pieces that stick out on the left side and bottom do not really look like appendages (legs etc.).
The real world size is about that of the small version displayed on these talk pages (on my screen at least).
Probably too small to ne one. Likely a pice of poo or dead stuff. To give you a sense of scale, the images are about 5-6cm in width.
It is an #ephyra
You can flag them here though, if you feel like it.
I'm not a jelly guy. But I've asked one to come onboard.
It probably is a pretty big isopod. So a crustacean indeed. Not a #shrimp. Should not be marked (they are too rare to be worth a category)
It is! Engraulidae probably.
Without this the rest, the opaque part, is not easy to identify.
It looks exactly like the other roundish stuff that's around.
The piece at the left end, which looks like a tail, seems like it is actual on a different level (behind or in front)
It is difficult to say but I would actually say neither.
@jessicaluo / @cguigand what was the orientation of the images in the California cruise? Was "up" right or left?
It is neither... and I have no idea what it can be
http://en.wikipedia.org/wiki/Doliolida#Life_cycle for more info.
That is indeed a #doliolid. It is "budding", i.e. reproducing asexually by producing new individuals along its "tail"
I cannot. But I've asked for help.
Yes 4 #doliolid and probably a #larvacean next to the left-most one (the bright white squiggly thing)
Siphos live as long chains of specialised units (some of which reproduce). Doliolids are solitary but bud to reproduce.
They are indeed budding (reproducing asexually). It looks like siphos but the process is a bit different.
Quite likely indeed.
Not a pteropod but no idea what it can be...
The frames on PP are cut in those large ribbons. One frame on PP is half the height of the ribbon. i.e. ~72 PP frames in that image.
The image is actually a continuous ribbon that we cut at the length we want.
Here's a party: https://www.dropbox.com/s/4q4esijihorfjeq/20130726232035_235964.png?dl=0 this is what raw ISIIS images look like
Likely poo... oops I meant to say a "fecal pellet". These long thin ones may be from Euphausiids (krill).
More images https://www.google.com/search?q=trichodesmium&tbm=isch. The bowtie shape is quite characteristic.
Very surprising to find it so deep!
This is a cyanobacteria http://en.wikipedia.org/wiki/Trichodesmium
The best way is to find steps to reproduce it consistently and then post an issue at https://github.com/zooniverse/plankton/issues/
I'd say no but it is very difficult to tell.
Most organisms are smaller in the Med (less food) and most of the copepod biomass is in very small copepods, too small to be seen by ISIIS
Looks like it indeed. I would add that I saw it while my internet connection is always very good.
They were also quite concentrated near the surface, together with doliolids
Hard to say anyway. I got this image to. I did not flag anything.
Indeed for the #algae. I don't think the large bit on the left is a sipho.On the right, the large white blob is a #radiolarian.
The front (top part) is blurry because it is moving very fast, even faster than ISIIS.
It is a #shrimp. Actually a Mysiid or Euphausiid rather than an actual shrimp (but we tag them shrimp anyway).
Nicely framed this one!
I've ween that a few times. If you continue noticing it, please start a forum thread so that @DZM can be made aware of it.
This is what ISIIS + planktonportal can get us: very accurate estimates of concentration over very small spatial scale!
We expect huge concentrations of those near the surface from an initial look at the data. Probably higher than anything previously observed.
Plus, this one is particularly big. Usually we get 3-5 lines. Not reason enough to ditch the frame.
There might be some organisms around the glitches so I would not remove the frame.
Yay, a #fish !
Never seen that before either. Looks like a circular (from this angle at least) radiolarian colony.
Did I mention that I love #sipho ? 😉
Beautiful small star-like organism on the left side, 2/3 from the top.
Not sure at all what that is. Never seen this in the images I screened. It would be horizontal in the water (up is right on the images)...
(blurry) pieces of a #sipho, probably so long that the movement of the water around ISIIS separated its pieces.
I love #sipho. But I am not sure which kind this one should be in. @jessicaluo: two-cups or corn cob?
BTW, how do you find the following/previous image every time?
Indeed. Definitely an #arrowworm (chaetognatha).
Probably a Pelagia noctiluca. Their cup is typically form 10 to 20 cm in diameter and the tentacles can be several m long.
There will therefore probably be more organisms cut in the Med dataset.
There were two many potential organisms for us to be able to "center" them as in the California dataset.
Yes we got a few of those. The camera scans line by line and when it stops working it creates those black (here white) lines.
Hard to be certain but it sure looks like it.
It is indeed.
Hard to say. It may well be a larval fish.
Yes indeed. But it is a bit blurry. I think there are better ones to find.
People are probably used to the old one by now.
I agree that the example is very different but this category is very diverse so it is difficult to say which is best.
Looks like a side view of a bug on a sled though. Kind of funny.
Top right is a large chunk of marine snow. Bottom left is a mystery to me.
Not something we care about indeed. No way of telling what it is, and is probably not a living thing.
Difficult to conclude. It would also be a fecal pellet. I would rather say "no" for fish in any case, the "caudal" part is indeed odd.
Pteropods cast mucus nets for example.
It probably is an old, discarded larvacean house. But there are other potential origins for a big chunk of mucus like this.
Anyhow, it is likely that all/most jellies > 4 tentacles in the med dataset will be arctapodema so we will use this when exploiting the data
Yes, yes by all means, continue! But we won't make it a new official category on the site.
I wouldn't be able to tell them to the species (or genus even!). I am a fish guy 😉. @jessicaluo might know more.
It probably is. As far as we can tell, all these are Mertensiid Ctenophores.
Indeed. A small sun/star
So keep digging! 😉
@yshish that's good news for us. Yes we got plenty. There was also a huge amount of doliolids near the surface and some pretty big siphos.
Yes you can mark them. There are other cases were we need a solid algorithm for half visible organisms anyway.
Jessica told me those were labelled jellies > 4 tentacles previously. That works for us.
Another big #aggregate or #marinesnow
Beautiful and quite big #doliolid
Exactly yshish. We had strong temperature differences around 17 m depth (27ºC at the surface, 14ºC below) and it created these artefacts.
That's a lot of gunk! Probably a discarded #larvacean house.
Should be make a category for those Arctapodema jellies?
Something there. Maybe the abdomen of a #shrimp but it is difficult to say. Hopefully the rest of the animal should be on another frame
Yes, tentacles from a jelly. Nothing to mark on this one though, but it looks cool!