Are you managed or monitored?
Shiny things collected by an easily distracted marine biologist. There will likely be fish, critters, science, other people's art, fannish stuffs (mostly of a science fictiony, Sherlocky, or cartoonish nature), teapots, things that make me laugh, and occasionally, kids.
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Eastern Grass Shrimp (Palaemonetes paludosus)
Also known as the ghost or glass shrimp, the eastern grass shrimp is a species of freshwater glass shrimp native to the Appalachian Mountains, Louisiana, and parts of Texas and California. Eastern grass shrimp usually inhabit slow moving freshwater streams, ponds and lakes where they feed on algae, plants and small insects nocturnally.Their transparency acts as near perfect camouflage as predators can see right through them, they support this by manipulating their pigment granules to match closely with their background. Eastern grass shrimp have also become fairly popular in the aquarium trade as well.
Um. I quite often lump freshwater species in with “marine” tags, forgive me. Just look at it as my synonym for “aquatic,” ok?
Spotted Cleaner Shrimp: This cleaner shrimp associates with a sea anemone and attracts fish from which it cleans and eats detritus such as parasites and algae. Such a symbiotic relationship benefits both the shrimp and the fish.
You know, I still haven’t watched the last episode of this. I guess I want to fool myself I’m not done with it. Plus the kids misplaced the Roku remote.
Should have done that with Sherlock.
Super Family: Alpheoidea
The pistol shrimp competes with much larger animals like the Sperm Whale and Beluga Whale for the title of ‘loudest animal in the sea’. Amazing, given that the pistol shrimp is only 1–2 inches (3–5 cm) long.
It is distinctive for its disproportionately large claw, (larger than half the shrimp’s body) which does not have pincers at the end. Rather, it has a pistol-like feature made of two parts. A joint allows the “hammer” part to move backward into a cocking position like a gun. When released, it snaps into the other part of the claw, creating a cavitation bubble capable of stunning fish and breaking small glass jars.
As the bubble extends out from the claw, it reaches speeds up to 60 miles per hour (97 km/h) and releases a sound reaching 218 decibels. The duration of the click is less than 1 millisecond.
The snap can also produce sonoluminescence [light] from the collapsing bubble. As it collapses, the cavitation bubble reaches temperatures of over 5,000 K (4,700 °C). In comparison, the surface temperature of the sun is estimated to be around 5,800 K (5,500 °C). The light is not visible to the naked eye. It is likely a by-product of the shock wave. It was the first known instance of an animal producing light by this effect.
The snapping is used for hunting, as well as for communication. When feeding, the shrimp usually lies in an obscured spot, such as a burrow. The shrimp then extends its antennae outwards to determine if any fish are passing by. Once it feels movement, the shrimp inches out of its hiding place, pulls back its claw, and releases a “shot” which stuns the prey; the shrimp pulls it into the burrow and feeds. Source
Excellent video of the Pistol Shrimp in action:
Other posts you may like:
Rainbow Mantis Shrimp - also sonoluminescent
Sexy Anemone Shrimp
Sometimes, if your down in the bottom of boat in a harbor, you can hear these guys banging away as they scuttle around the outside of the hull…
Decapods, plate 86, Kunstformen der Natur (1904), Ernst Haeckel (1834–1919)
- Parthenope horrida (Fabricius) = Daldorfia horrida (Linnaeus, 1758)
- Podophthalmus vigil (Leach) = Podophthalmus vigil (Fabricius, 1798)
- Pisa armata (Leach) = Pisa armata (Latreille, 1803)
- Gonoplax rhomboides (Desmarest) = Goneplax rhomboides (Linnaeus, 1758)
- Pisolambrus nitidus (Milne Edwards) = Solenolambrus tenellus Stimpson, 1871
- Stenopus hispidus (Latreille) = Stenopus hispidus (Olivier, 1811)
- Palaemon serratus (Fabricius) = Palaemon serratus (Pennant, 1777)
- Albunea symnista (Fabricius) = Albunea symnista (Linnaeus, 1758)
- Lissa chiragra (Leach) = Lissa chiragra (Fabricius, 1775)
- Birgus latro (Herbst) = Birgus latro (Linnaeus, 1767)
Loves me some decapods. Though there should be a lobster or two here, as well…
Junji Ito’s Ika Musume
Don’t mind me, just walking the prawn…