Calanidae is the largest taxonomic family of calanoid copepods. It includes the genus Calanus, which may be the most abundant metazoan genus on Earth.
Diel vertical migration (DVM), also known as diurnal vertical migration, is a pattern of movement used by some organisms, such as copepods, living in the ocean and in lakes. The word "diel" comes from Latin: diēs, lit. 'day', and means a 24-hour period. The migration occurs when organisms move up to the uppermost layer of the sea at night and return to the bottom of the daylight zone of the oceans or to the dense, bottom layer of lakes during the day. It is important to the functioning of deep-sea food webs and the biologically driven sequestration of carbon.
Calanus finmarchicus is a species of copepod and a component of the zooplankton, which is found in enormous amounts in the northern Atlantic Ocean.
Neocalanus is a genus of marine copepods. They are a dominant component of the open water ecosystems of the northern Pacific Ocean. Neocalanus are large copepods, reaching body lengths of more than 8 mm (0.31 in) in Neocalanus plumchrus.
Calanus hyperboreus is a copepod found in the Arctic and northern Atlantic. It occurs from the surface to depths of 5,000 metres (16,000 ft).
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 1,800 metres (5,900 ft) in depth. Females generally range from about 3.6 to 5.5 millimetres in length, and males generally range from about 3.9 to 5.4 millimetres in length.
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 2.9 millimetres (0.11 in) and the male has an average size of about 2.7 millimetres (0.11 in).
Calanus pacificus is a species of copepod found in the Pacific Ocean. The female has an average length of about 3.1 millimetres (0.12 in), and the male has a value of about 2.9 millimetres (0.11 in).
Calanus propinquus is a copepod found in Antarctica, and the surrounding waters.
Calanoides acutus is a copepod found in Antarctica and the surrounding waters.
Metridia longa is a copepod found in the Arctic, the north Atlantic, the Pacific, and surrounding waters. The female has an average length of about 4.2 millimetres (0.17 in), and the males have an average length of about 3.5 millimetres (0.14 in).
Neocalanus cristatus is a species of copepod found primarily in the northern Pacific.
Metridia pacifica is a copepod found in the north Pacific and surrounding waters.
Eucalanus bungii is a copepod found in the north Pacific and surrounding waters.
Pseudocalanus newmani is a copepod found in Arctic and northern Pacific waters. It was described by Frost in 1989. It is found in the Arctic and surrounding waters. There are multiple generations. Unlike some copepods, P. newmani undergoes reverse diel vertical migration, descending during the night, and ascending during the day, although it may undergo normal or no migration at all depending on predation. This copepod is primarily herbivorous.
Calanus sinicus is a copepod found in the northwest Pacific.
Rhincalaus nasutus is a copepod in the family Rhincalanidae.
The lipid pump sequesters carbon from the ocean's surface to deeper waters via lipids associated with overwintering vertically migratory zooplankton. Lipids are a class of hydrocarbon rich, nitrogen and phosphorus deficient compounds essential for cellular structures. This lipid carbon enters the deep ocean as carbon dioxide produced by respiration of lipid reserves and as organic matter from the mortality of zooplankton.
Metridia gerlachei is a copepod found primarily in Antarctic and sub-Antarctic waters.
Pseudocalanus minutus is a small copepod found in the Arctic Ocean and surrounding waters.
