Themisto libellula
| Themisto libellula | |
|---|---|
| A microscopic picture of Themisto libellula | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Amphipoda |
| Family: | Hyperiidae |
| Genus: | Themisto |
| Species: | T. libellula
|
| Binomial name | |
| Themisto libellula (Lichtenstein in Mandt, 1822)
| |
| Synonyms[1] | |
|
Euthemisto libellula | |
Themisto libellula is a marine amphipod of the family Hyperiidae. The species lives for 2 to 3 years, and grows up to 60 millimetres (2.4 in) over its lifetime.[2][3] They are found in large quantities in Arctic water.[4]
In the summer, they eat more lipids to store as fuel for the winter.[3] During the mid-winter, they eat copepods, such as Calanus finmarchicus.[5] T. libellula is eaten by cod, polar cod, and mammals at the ice edge.[4] In the early 2000s, the population of the species began to decrease; these effects rippled through the food chain.[4] The levels later rose in cool years, and T. libellula have moved south of the Arctic Circle.[3] They have been observed in mass mortalities, where millions of T. libellula wash up dead on the coast.[6][7]
References
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