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Copepods (/ ˈ k oʊ p ə p ɒ d /; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat.Some species are planktonic (living in the water column), some are benthic (living on the sediments), several species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as ...
For neurobiology, one study looked at the central nervous system of this copepod to get an idea of the organization of the central nervous system of the ancestors to the crustaceans and insects to complement the neurobiological work that has been done in a group of distantly related copepods (the calanoid copepods). [20]
Calanus finmarchicus is considered to be a large copepod, being typically 2–4 millimetres (0.08–0.16 in) long. [citation needed] Copepods like C. finmarchicus represent a major part of dry weight (biomass) mesozooplankton in pelagic ecosystems. [4]
Harpacticoida is an order of copepods, in the subphylum Crustacea.This order comprises 463 genera and about 3,000 species; its members are benthic copepods found throughout the world in the marine environment (most families) and in fresh water (essentially the Ameiridae, Parastenocarididae and the Canthocamptidae).
Like many plankton common to estuarine ecosystems, they can live in a wide range of temperatures and salinities. [2] The wide distribution of Acartia tonsa may be a result of these copepods being transported as ballast in ships. Their tolerance to changes in salinity has likely contributed to their success as an invasive species in some regions.
Tigriopus is a genus of copepods in the family Harpacticidae, containing the following species: [1] Tigriopus angulatus Lang, 1933 Tigriopus brachydactylus Candeias, 1959