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#crustacean

0 posts0 participants0 posts today
Lukas VFN 🇪🇺

Century-old #crustacean mystery solved: Parasitic #barnacles hijack host bodies through root-like networks phys.org/news/2025-07-century-

"Y-larvae have been studied in #plankton since the 1800s, but the real mystery is figuring out what they grow up to be... they are related to barnacles, but more as distant cousins... if we expose them to #crustaceans' growth hormone, they will hatch out of their little swimming larval shape into a slug-like body, which is similar to what parasitic barnacles do"

Ele Willoughby, PhD

For #WorldOceanDay I thought I would share a print with both a vertebrate and invertebrate ocean species. This linocut and gel plate print shows the humpback whale swimming above and a close up of the whale below with six Coronula diadema barnacles.

The Coronula diadema name comes from its barrel and crown-like shape, which can grow to 5 cm (2”) tall and 6 cm (2.4”) in diameter. 🧵

#linocut#printmaking#sciArt
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.

#marsh#spring#isopod
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"

Matt Potter

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.

#wildlife#crayfish#buckinghamshire
michael

4-Oct-2024
#Pharmacology: Venomous #crustacean from Mayan underwater caves provides new drug candidates
Toxins from remipede crabs in Mexican cenote caves have pharmacological potential // Species' habitat threatened

eurekalert.org/news-releases/1 #science #ecology

EurekAlert!Pharmacology: Venomous crustacean from Mayan underwater caves provides new drug candidatesZootoxins affect a wide range of physiological processes and are therefore of great interest for drug research. An international study led by Björn von Reumont of Goethe University Frankfurt has identified novel toxins from the cave-dwelling underwater crustacean Xibalbanus tulumensis that inhibit various ion channels. The discovery opens up promising pharmacological applications. The species is found exclusively in the cenote caves that were once sacred to the Maya.
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"

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"

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"

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