Английская Википедия:Calanoides acutus

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Calanoides acutus is a copepod found in Antarctica and the surrounding waters.

Description

The female ranges from about Шаблон:Convert, and the male has an average length of about Шаблон:Convert.[1]

Distribution

C. acutus is found in Antarctic and sub-Antarctic waters, from sea level to Шаблон:Convert in depth.[1]

Ecology

Life history and reproduction

While C. acutus is only confirmed to breed from November to March,[2] it likely starts breeding in early October, as a study observed females without eggs and late-stage nauplii presumably belonging to this copepod in mid-November.[3] Stage I through III copepodites are generally found from sea level to Шаблон:Convert of depth. Older stages, on the other hand, are found in the top Шаблон:Convert during the summer, except during December, when they are found in the top Шаблон:Convert.[4] C. acutus starts to descend in February, although this is affected by the food supply, with individuals in the northern portion of the range, like in Drake Passage, only starting to winter during mid-March.[5] Individuals, mainly stage IV and V copepodites,[4] winter to between about Шаблон:Convert.[5] There is no evidence of diel vertical migration in this species.[3]

References

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