Copepods (/ˈkoʊpəpɒd/; 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), a number of species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, puddles, damp moss, or water-filled recesses of plants (phytotelmata) such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as biodiversity indicators.
As with other crustaceans, copepods have a larval form. For copepods, the egg hatches into a nauplius form, with a head and a tail but no true thorax or abdomen. The larva molts several times until it resembles the adult and then, after more molts, achieves adult development. The nauplius form is so different from the adult form that it was once thought to be a separate species. The metamorphosis had, until 1832, led to copepods being misidentified as zoophytes or insects (albeit aquatic ones), or, for parasitic copepods, 'fish lice'.[1]
^Damkaer, David (2002). The Copepod's Cabinet: A Biographical and Bibliographical History. American Philosophical Society. ISBN 9780871692405.
Copepods (/ˈkoʊpəpɒd/; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic...
Ommatokoita is a monotypic genus of copepods, the sole species being Ommatokoita elongata. However, a specimen has been found on the skin of Etmopterus...
zooplankton are the copepods and krill. These are not shown in the images above, but are discussed in more detail later. Copepods are a group of small...
shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, amphipods and mantis shrimp. The crustacean group can...
and they first spawn at three years. Egg to juvenile Herrings consume copepods, arrow worms, pelagic amphipods, mysids, and krill in the pelagic zone...
Tigriopus californicus is an intertidal copepod species that occurs on the Pacific coast of North America. This species has been the subject of numerous...
feeds primarily on zooplankton, specifically mollusc veligers, copepods, and copepod nauplii. They generally capture fewer gelatinous zooplankton, as...
holoplankton spend their entire life cycle as plankton (e.g. most algae, copepods, salps, and some jellyfish). By contrast, meroplankton are only planktic...
Calanoida is an order of copepods, a group of arthropods commonly found as zooplankton. The order includes around 46 families with about 1800 species of...
diatoms, radiolarians, some dinoflagellates, foraminifera, amphipods, krill, copepods, and salps, as well as some gastropod mollusk species. Holoplankton dwell...
infested by the copepod Ommatokoita elongata, a crustacean which attaches itself to the shark's eyes. It was speculated that the copepod may display bioluminescence...
Tigriopus brevicornis is a coastal marine copepod. They are a dominant member of shallow supra tidal rock pools along the North Western European coastline...
a copepod, itself the parasite of a fish. In H. sarcotretis, parasitism is taken a stage further when the hydrozoan attaches itself to the copepod Cardiodectes...
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...
develop in copepods. This led Russian naturalist Alexei Pavlovich Fedchenko to discover in 1870 that D. medinensis is similarly transmitted via copepod intermediate...
jellyfish and the Portuguese Man o' War; crustaceans such as cladocerans, copepods, ostracods, isopods, amphipods, mysids and krill; chaetognaths (arrow worms);...
Calanus finmarchicus is a species of copepod and a component of the zooplankton, which is found in enormous amounts in the northern Atlantic Ocean. Calanus...
information related to Gaussia. Gaussia may refer to: Gaussia (crustacean), a copepod genus in the family Metridinidae and the order Calanoida Gaussia (plant)...
found in animals, including fireflies, and many marine animals such as copepods, jellyfish, and the sea pansy. However, luciferases have been studied in...
Paracalanus parvus is a copepod found throughout the world, except the Arctic. The female P. parvus usually ranges from about 0.6 to 1.3 millimetres (0...
Lernaea is a genus of copepod crustaceans whose members are commonly called anchor worms and are parasitic on freshwater fishes. Anchor worms mate during...
Rhincalanus gigas is a large Antarctic copepod. Rhincalanus gigas is a large copepod, with the female ranging in size from about 6.5 to 9.3 millimetres...
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