Electrona (fish)
From Wikipedia, the free encyclopedia
| Electrona | |
|---|---|
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| Electrona antarctica | |
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| Electric Lanternfish (E. risso) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Myctophiformes |
| Family: | Myctophidae |
| Genus: | Electrona Goode & T. H. Bean, 1896 |
| Species | |
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See text. | |
Electrona is a genus of lanternfishes in the family Myctophidae.
There are currently five recognized species in this genus:[2][3]
- Electrona antarctica (Günther, 1878) (Antarctic lanternfish)
- Electrona carlsbergi (Tåning, 1932) (Electron subantarctic lanternfish)
- Electrona paucirastra Bolin, 1962 (Belted lanternfish)
- Electrona risso (Cocco, 1829) (Electric lanternfish)
- Electrona subaspera (Günther, 1864) (Rough lanternfish)
Description
Electrona lanternfishes are small, discoid fishes.
Distribution and ecology
While Electrona risso can be found throughout the world, widespread in the Indian, Pacific, Atlantic Oceans, and Mediterranean, the other four species are limited to the southern hemisphere, mostly limited to the Southern Ocean. Their dispersion is dependent on the balance between current-mediated larval dispersal and adult active homing behavior.[4] Besides E. rissoi is E. paucirastra the only species that is found north of the Southern Ocean.E. antarctica mainly inhabits the Antarctic deep and therefore warmer waters.[5] E. carlsbergii inhabits the water south of the Antarctica convergence to the Antarctic coast, and between the Antarctic and sub-Antarctic convergences.[5] Larval forms of many deep-water species are found to inhabit inshore waters.[6] Migration patterns vary between different species, size groups, life history stages, sex, latitude, time and season.[6]