It always amazes me when I see the moon and the sun in the sky at the same time. One photo was from the left side of the ship and the other one was from the right side. It was just beautiful.
The second trawl to 1000 m was just as successful as the first trawl today. We saw many more skates, rat tails, and little crabs. Some hagfish were caught as well. They are put in water, and then they stay in the refrigerator for 24 hours. After 24 hours, John will be able to test out his lab respirometer. I’m looking forward to seeing how it works.
John is always too nice. In this video, he 'tosses" (really throws) a hagfish at me and it lands in the bucket.
Many fish come up from the net pretty beaten up. Some of their scales may fall off as well as their eyes. Normally their eyes fall off due to their swim bladder expanding which causes the eyes to bulge out.
While measuring the fish, we found one that had two other fish inside its mouth. We think the fish fell into the mouth. It was pretty cool.
Today was a fun-filled day with much excitement from the success of the camera and trawls. Again we were able to see some humpback whales, and we saw some dall porpoises. I tried to take video of the porpoises, but it was too difficult. The porpoises don’t jump out of the water like dolphins. I will show you the shaky video, that I did take, when I get back to school.
:)
“This material is based upon work supported by the National Science Foundation under Grant No. 0727135. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).”
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More skates! The only skate a small trachura can be confused with is an abyssicola, which differ in shape and ventral markings. It looks like you caught a large abyssicola here too! I'm glad the skates are more abundant this trip!
ReplyDeleteHi, Mariah. Thanks so much for posting comments! Yes, we are happy that we are getting a lot more skates, too. On Day 4 Part 1, the last photo is the same skate as the one on top of Day 4 Part 2 (both called trachura). It had very little white on the mouth and little white on the pelvic fins. Nuccal thorns were very weak (usually 2) in those that were called trachura. The larger greyish skate seen in Day 4 part two was called abyssicola. Any ideas? We took more photos if you need them. Any help would be greatly appreciated!!! THANKS!
ReplyDeleteI love this virtual skate ID! Awesome :) Yes so the large one looks like abyssicola, I'm confident with that one. When you get into deepwater small dark-colored skates juvenile abyssicola look very similar to the same size of trachura and can both be caught at 1000m, with trachura being more common. Deeper microtrachys (that we caught last cruise) can be confused with these two as well, although they are probably much deeper, 2000+m.
ReplyDeleteI'm emailing Michelle pictures of abyssicola and trachura side by side. The shape of the skates helps a lot, as does the dorsal surface. From looking at these characteristics I would concur that this one is a trachura!
that fish you were holding looked groos with the 2 fishes sticking out of its mouth!yuuuuuuuck!
ReplyDeleteHi Ms.Kay!why do the skates look kind of like stingrays?
ReplyDeleteHi, Sina. Both stingrays and skates are under the order Rajiformes; they are distantly related. This explains why they look similar to each other.
ReplyDeleteStingrays have mandibles, jaws, for crushing prey. Smooth, fused bony-like plates so that they can crush their prey like crabs. Skates have small, conical teeth that make catching and consuming prey, such as fish, much easier.
Stingrays usually have a broader wing span. This gives them better maneuverability, easier to move, in the rocky and reef areas where they usually live. Many also have specialized snouts, noses, so that they can dig into the sand or move water through their mouths to get their prey. They also have long, whip-like tails that have a poisonous barb on it. They generally use this bard as a defense mechanism, breaking it off into a predator. Don't worry! It grows back.
Skates are built to camouflage with the sea-bed. They can have many different patterns on their backs so that predators can't see them. They can even have large spots on their backs that look like big eyes that make predators think that they are bigger than they really are. Their tails are much thicker than stingrays and lack a barb. Their tails and bodies, however, can be covered in sharp spines and prickles that make them less appetizing to some predators.
I hope this helps. You asked a very good question, Sina. :)
wow the skate looks really big. do skates and rays have something compared?
ReplyDeleteparahdyz chelsey pd.4 said... amazing that the fishes swim bladders have expanded pushing their stomaches out of their mouth.
ReplyDeleteand there faces look weird when they got caught from the net and also it is cool that the fishes use the re and white muscles to swim because i only know that fishes use there fins to swim!!!
love yooh ms.kay
wow those skates looks pretty big and try copareing it to a baby i hope you =had lots of fun
ReplyDeletewat is the fish that mrs. kay is holding
ReplyDeletei love the last video because i love the hang fish.
ReplyDeleteThats pretty cool for a heart to move outside of the body
ReplyDeletewow that was cool the skates heart was still moving and the kate was cut open to pieces
ReplyDeleteThat snail fish looked awsome!!!!!:)
ReplyDeleteI want to touch the fishes.
ReplyDeleteo that snail fish looked gross and cool at the same time also the skates heart!!!!!!!!!!!!!!!:)
ReplyDeleteThe fish's body parts in the first video were cool but gross at the same time. The heart was still moving and that part was cool!
ReplyDeletedid you guys eat the fish you captured or kept them for display or used them for bait or threw them in the ocean so the fish could eat them?????
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