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#crustacean

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#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.

#marsh#spring#isopod

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 … 🧵

#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"

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

Absolutely massive, lobster-like signal crayfish in the river Misbourne. These species were brought to the UK from North America to be farmed, but have escaped into the wild & infiltrated some of the UK’s wild rivers, where they are pushing out the smaller native species from their habitats.

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"