Marine Biology - Tumblr Posts

The “Squidworm” is believed to be a transitional organism from benthic worms to free-swimming pelagic worms.  They are named Squidworms due to their tentacle-like branchiae and palps.

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Inktober 5: Favorite festival

Old foes

Always been a sucker for whales

A sky whale doodle to prep myself for designing the whale shaped star projector. Ever since I got my new laser cutter, I've been on a design streak :D I'm excited to share some photos soon!

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Thesis: every nerd goes through a marine biology phase, and your position on the prep/goth axis determines which particular horrifying denizen of the deep you become most obsessed with.

Got curious about if scallops have brains and

Pretty sure this article was written by a scallop 🤔

god i love fish names. i love going into a stream to do a fish survey and getting to say “this is a creek chub” and a scientist nods and writes it down. creek chub,,, he puts that in the records….it’s important information……love that

snagged this off twitter bc i thought you would like it :>

i misread mudskipper as markiplier im so sorry

mudskiplier

As someone studying to be a Marine Biologist, and who wants to specialize in Sharks, I have no doubt this is what I will think 24/7

Pictures from the Aquarium

FIRSTLY SHARKS!!! AAAAAAA!! THEY'RE SOOO CUTEEE

BLACKTIP REEF SHARKS (CARCHARHINUS MELANOPTERUS)!!!

A ZEBRA SHARK (STEGOSTOMA FASCIATUM) AND A BLACKCHIN GUITARFISH (GLAUCOSTEGUS CEMICULUS)!!!

A POTATO GROUPER (EPINEPHELUS TUKULA) AND SOME GOLDEN TREVALLIES (GNATHANODON SPECIOSUS)!!

A RED LIONFISH (PTEROIS VOLITANS) AND A SPOTTED-GILL CARDINALFISH (OSTORHINCHUS CHRYSOPOMUS)!!!

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Hiyaaa @writingraccoon, I told you I would @ you in mycology posts but given you said you like biology, I thought you might like these pictures of sharks and fish too:)

Fossil Shark Teeth ID Project - Part 2

I am currently working on a shark teeth ID project. It is a personal project I am working on because I got gifted a multitude of fossil shark teeth of various species.

Up untill now I have only been able to identify one shark species, because the teeth are so characteristic. The teeth (seen in the picture below) belong to the species the Broadnose Sevengill Shark or Notorynchus cepedianus.

The Broadnose Sevengill Shark belongs to the family of Cow Sharks or Hexanchidae, which are considered the most primitive of sharks.

I actually just recently watched a documentary covering Broadnose Sevengill Sharks with Forrest Galante. It was called 'Alien Sharks: Strange New Worlds', it was from Sharkweek 2023 and it was really good!

I also have two different teeth which I am having a lot more difficulties with identifying (see the two pictures below). If anyone has any clue of which species these teeth may belong to, please let me know:)

Fossil Shark Teeth ID Project - Part 1

I am currently working on a shark teeth ID project. It is a personal project I am working on because I got gifted a multitude of fossil shark teeth of various species.

I am fairly sure that the teeth (seen in the two pictures below) belong to the family Lamnidae and are from the species Cosmopolitodus hastalis.

If these teeth are in fact the teeth of Cosmopolitodus hastalis they ought to date back to the Miocene and Pliocene (which are the two epochs of the Neogene). Although the species was still alive during the Pleistocene, fossils found of Cosmopolitodus hastalis in Cadzand (in the Netherlands) date back to the Miocene and Pliocene.

One of the shark teeth (the left picture below) gifted to me is so severely eroded that I cannot visually identify it, however it is still a gorgeous fossil.

Between the various shark teeth I also found what I suspect to be a part of a fossilised chela (claw/pincer of a crab) (seen in the right picture below). Considering the location of the find I think it might be from Carcinus maenas and could date back to the Pliocene.

A NEW SPECIES OF GHOST SHARK JUST DROPPED!!! AAAAAAAAAA

LOOK AT IT!!! AAAAAAA!!! IT'S CALLED HARIOTTA AVIA!!! IT'S SO PRETTY AND COOL!!!

Dr. Brit Finucci, who discovered this species, said :

“Harriotta avia is unique due to its elongated, narrow and depressed snout; long, slender trunk; large eyes; and very long, broad pectoral fins. It is a lovely chocolate brown colour."

and

“Ghost sharks like this one are largely confined to the ocean floor, living in depths of up to 2,600m. Their habitat makes them hard to study and monitor, meaning we don’t know a lot about their biology or threat status, but it makes discoveries like this even more exciting."

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Note: despite the common name, ghost sharks aren't actually sharks, they are chimaeras. They are a group of cartilaginous fish closely related to sharks and rays.

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You can read more about Harriotta avia here:

NIWA

New species of NZ ghost shark discovered

Scientists have found a new ghost shark that lives exclusively in the deep waters of Australia and New Zealand. 

And here:

CNN

New species of ghost shark discovered by New Zealand scientists | CNN

Scientists have discovered a new species of ghost shark that lives in deep ocean waters near Australia and New Zealand.