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Atyopsis is a genus of freshwater shrimp from Southeast Asia.It was erected in 1983 by Fenner A. Chace, Jr. for two species formerly treated in the genus Atya. [1] It differs from Atya by various characters, including the form of the telson (which is longest at the corners in Atyopsis, but not in Atya) and the presence of a "massive spur" on the male third pereiopod.
Despite their predatory-sounding name "Vampire", they are a non-aggressive species that does well in community tanks that have areas to hide during the molting process. Another requirement is a moderate to strong current where the shrimp can sit and catch food. Either a very well established tank with sufficient plankton, or supplemental ...
A dragonfly in its radical final moult, metamorphosing from an aquatic nymph to a winged adult.. In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is a process by which an animal casts off parts of its body to serve some beneficial purpose, either at specific times of the year, or at specific points in ...
Triops longicaudatus (commonly called American tadpole shrimp or longtail tadpole shrimp) is a freshwater crustacean of the order Notostraca, resembling a miniature horseshoe crab. It is characterized by an elongated, segmented body, a flattened shield-like brownish carapace covering two thirds of the thorax, and two long filaments on the abdomen.
Juvenile shrimp will molt more frequently, as they must shed their exoskeleton as they grow. This discarded exoskeleton should be left in the tank, as the shrimp will eat it to recover the valuable minerals it contains. Pregnant N. davidi shrimp tend to hide in the dark. If they feel endangered by predators, they will abandon their eggs.
After this, the likelihood of their molting and surviving in saltwater is drastically diminished. The researchers concluded that dams and other human-erected barriers, by blocking the larval drift, are likely to be the primary reason that Ohio River shrimp are almost non-existent in the Ohio River.
However, the original meaning of Buster crab referred to either a soft-shell that had yet to complete molting, or to a soft-shell that had died before being provided to a seafood vendor, and was then consumed quickly by the crabbers. [7] [8] In Japan, various species are used to make sushi such as maki-zushi or temaki-zushi. [4]
Somatic growth and sexual differentiation in Emerita are restricted to discrete events (molts) and both processes compete for energy reserve. In some conditions of high food availability, overlapping reproductive and molting processes would enable females to reach an optimum size and sexual maturity with fewer molts. [15]