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#crustacean

1 post1 participant0 posts today
Public
Sunguramy :nb_lily:

#MarshMadness day 21
Two little isopods, Lirceus sp. They are not technically from a marsh they are from a spring, but the spring was rather tiny marsh-like so I am counting it.

Right now I am trying to get people to step up for our environment as the public comment period draws to a close on removing the National Environmental Policy Act. This will effectively destroy almost all environment protections in the United States. If you were worried they will destroy the National Parks for profit, rest assured this is the first step. By removing NEPA, they *will be able to*. Easily.

Please, go leave your comment (federalregister.gov/documents/), call your senators and congress, and keep fighting for nature.

A nine segmented medium brown with lighter brown and tan patterning little critter with long antenna. It is an aquatic relative of the "rolly pollies" you have in your backyard. There is a smaller one under the larger one, just a younger one. It gives a parent and child vibe to the image, although that would be really unlikely to actually be the case.
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#marsh#spring#isopod
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Ele Willoughby, PhD

Bonus #ArtAdventCalendar & #invertefest &#crustmas print made for #InsertAnInvert2024 🦀 Time after time shrimp like crustaceans have evolved crablike forms (through a process called carcinization) and do a good job of pretending to be crabs, but this odd looking fellow is the real deal, a true crab. My red frog crab (Ranina ranina), also known as a spanner crab or Huỳnh Đế crab, is … 🧵

#linocut#printmaking#crustacean
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Lukas VFN 🇪🇺

#NewSpecies of ocean predator in the Atacama Trench
phys.org/news/2024-12-ocean-pr #DeepSea

A new large predator (#Amphipoda) hidden at hadal depths of the #AtacamaTrench: Johanna Weston et al. tandfonline.com/doi/full/10.10

"Characterized by darkness and intense pressure, the ocean's #HadalZone seems uninhabitable, yet dozens of unique organisms call it home... A new study highlights one of those species... This #crustacean is the first large, active predatory #amphipod from these extreme depths"

Close-up photo of a pale crustacean
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debbiev62

I went for a spring tide swim at Redcliffe Bay, Portishead a month ago and watched the Sand hoppers (Talitrus saltator) living up to their name and hopping & crawling away from the incoming high tide.

I've never seen so many in one spot as there wasn't much beach left for them. They're normally hidden in strandline debris and seaweed and other detritus. Adults spend the winter in a dormant state under the sand.

Taken with my phone

#sandhoppers#crustacean#nature
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Lukas VFN 🇪🇺

Venomous #crustacean from Mayan underwater caves provides new drug candidates phys.org/news/2024-10-venomous

Diversely evolved xibalbin variants from remipede venom inhibit potassium channels and activate PKA-II and Erk1/2 signaling bmcbiol.biomedcentral.com/arti

"It was only discovered a few years ago that there also exist venomous #crustaceans—#remipedes that look like centipedes and live in marine #caves... Xibalbanus tulumensis lives in the cenotes, which are the underwater cave systems on the #Yucatan"

close-up photo of a head of a pale centipede-like crustacean
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Lukas VFN 🇪🇺

Ancient #Crustacean Has Largest Fossil Claw of Any #Crab Ever Recorded scientificamerican.com/article paper: tandfonline.com/doi/full/10.10

"#NewZealand is well known for giant crab #fossils; hundreds of specimens of Tumidocarcinus giganteus have been found... But although this new crab lived at the same time, it was even chunkier: the largest specimen sported an 8-inch carapace & 8-inch claw, making it the biggest #fossil crab ever found"

drawing of a crab with a huge left claw
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Public
Lukas VFN 🇪🇺

Swimming #crustacean eats unlikely food source in the deep ocean phys.org/news/2024-09-crustace

A #DeepSea isopod that consumes #Sargassum sinking from the #ocean’s surface royalsocietypublishing.org/doi

"Using the submersible #Alvin, scientists encountered this isopod swimming 3.7 miles deep... Surprisingly, these #isopods can be seen carrying something more common on the ocean's surface: large pieces of Sargassum #algae. At the surface, Sargassum grows using photosynthesis, forming floating forests"

photo of a small pale crustacean next to a piece of brown seaweed
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Ele Willoughby, PhD

Next up for #InsertAnInvert2024 is stygofauna: aquatic animals who live underground. This is a hard-carved and hand-printed linocut print of a little semi-transparent, white amphipod crustacean in the Neoniphargidae group from the Pilbara. This is a large, dry, sparsely populated region in northern part of Western Australia which is a global biodiversity hotspot for subterranean fauna 🧵1/2

As described this is a hard-carved and hand-printed linocut print of a little semi-transparent, white amphipod crustacean in the Neoniphargidae group from the Pilbara. On cream coloured 8” x 8” washi paper there’s a black rectangle with a white and blue side view of the amphipod.
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#linocut#printmaking#sciart
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Ele Willoughby, PhD

For the final crustacean of May and the “really not a crab” prompt for #InsertAnInvert2024 I have opted for a far more common (and frankly less terrifying) little creature than the suggested species (that even our crustacean expert called “absolute abominations”). This little cutie on the other hand, is a freshwater water flea. Daphnia longispina is a planktonic crustacean of the 🧵1/n

Circular green Tetrapak intaglio print of Daphnia longispina, a tiny planktonic crustacean of the family Daphniidae, a cladoceran native to Eurasia. Only about 2 mm long, it’s found in all sorts of standing freshwater bodies from rock-pools to large lakes.
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#printmaking#sciart#drypoint
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Ele Willoughby, PhD

A phalanx of Yeti crabs cause I made a pattern with my linocut Yeti crab (Kiwa hirsuta), a crustacean with silky blond setae (resembling fur, which reminded scientists of the Abomnible Snowman) found on the Pacific-Antarctic Ridge. #InsertAnInvert2024.

The Yeti crab was found during the 2005 Census of Marine Life, near hydrothermal vents along the Pacific-Antarctic Ridge, 1,500 km S of Easter Island at a depth of 2,200 m. 🧵

As described this is a half-drop repeat pattern made from my linocut print on a black vertical rectangle of black kozo paper of a white yeti crab from above with its two elongated and fury arms reaching upwards.
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#yetiCrab#crustacean#linocut
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