''Calanus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of marine

copepod Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat (ecology), habitat. Some species are planktonic (inhabiting sea waters), some are benthos, benthic (living on the ocean floor) ...

in the family

Calanidae Calanidae is the largest taxonomic family of calanoid copepods. It includes the genus ''Calanus'', which may be the most abundant metazoan genus on Earth. Copepods of the genera ''Calanus'' and '' Neocalanus'' are ecologically important in the ...

(Order

Calanoida 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 both marine and freshwater copepods between them. Description Calanoids can be distinguis ...

). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' Brady, 1918 *''

Calanus agulhensis ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' B ...

'' De Decker, Kaczmaruk & Marska, 1991 *''

Calanus chilensis ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' Bra ...

'' Brodsky, 1959 *''

Calanus dorsalis ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' Bra ...

'' (Rafinesque, 1817) *''

Calanus euxinus ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' B ...

'' Hulsemann, 1991 *''

Calanus finmarchicus ''Calanus finmarchicus'' is a species of copepods and a part of zooplankton, which is found in enormous amounts in the northern Atlantic Ocean. Distribution and ecology ''Calanus finmarchicus'' is most commonly found in the North Sea and the Nor ...

'' (Gunnerus, 1770) *''

Calanus glacialis ''Calanus glacialis'' is an Arctic copepod found in the north-western Atlantic Ocean, adjoining waters, and the northwestern Pacific and its nearby waters. It ranges from sea level to in depth. Females generally range from about in length, an ...

'' Jaschnov, 1955 *''

Calanus helgolandicus ''Calanus helgolandicus'' is a copepod found in the Atlantic, from the North Sea south to the western coast of Africa. The female has an average size of about and the male has an average size of about . Description The female has an average siz ...

'' (Claus, 1863) *''

Calanus hyperboreus ''Calanus hyperboreus'' is a copepod found in the Arctic and northern Atlantic. It occurs from the surface to depths of . Description The size of ''C. hyperboreus'' varies with its geography; individuals located in more temperate waters usually ...

'' Krøyer, 1838 *''

Calanus jashnovi ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' Bra ...

'' Hulsemann, 1994 *''

Calanus marshallae ''Calanus marshallae'' is a species of copepod which forms part of the zooplankton in the northern Atlantic Ocean and the northern Pacific Ocean. Taxonomy Several species of copepod in the genus ''Calanus'' tend to dominate the zooplankton ...

'' Frost, 1974 *''

Calanus pacificus ''Calanus pacificus'' is a species of copepod found in the Pacific Ocean. The female has an average length of about , and the male has a value of about . Description The female is about in length, and typically ranges from in length. The male ...

'' Brodsky, 1948 *''

Calanus propinquus ''Calanus propinquus'' is a copepod found in Antarctica, and the surrounding waters. Description The female averages about in length, whereas the male has an average of about . The female usually ranges between around , and the male ranges fr ...

'' Brady, 1883 *''

Calanus simillimus ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' B ...

'' Giesbrecht, 1902 *''

Calanus sinicus ''Calanus sinicus'' is a copepod found in the northwest Pacific. Description The female ''C. sinicus'' generally ranges from about . The male generally ranges between about . For adults and copepodite stages IV and above, lower temperatures re ...

'' Brodsky, 1962 *''

Calanus torticornis ''Calanus'' is a genus of marine copepod in the family Calanidae (Order Calanoida). The genus was split in 1974, with some species being placed in a new genus, '' Neocalanus''. The following species are recognised: *'' Calanus aculeatus'' B ...

'' (Brady, 1918)

References

Calanoida Articles containing video clips Copepod genera {{copepod-stub