Argyropelecus affinis
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Argyropelecus affinis (top and middle left, right: Polyipnus spinosus , below: Gonostoma elongatum ) |
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| Argyropelecus affinis | ||||||||||||
| Garman , 1899 |
Argyropelecus affinis is a species of fish from the family of deep-sea hatchetfish (Sternoptychidae). It occurs in the Atlantic , Pacific and Indian Oceans and reaches a standard length (excluding fins) of up to 8.4 centimeters.
Argyropelecus affinis are deep-sea fish that stay in a water depth of 350 to 600 meters during the day and rise to 500 to 170 meters at night. Like most deep-sea fish, Argyropelecus affinis has oversized eyes in proportion to the head. In the large scales on the belly side, Argyropelecus affinis has small luminous organs that emit a bluish light and thus reduce the shadow image below. These light organs are designed from a standard length of 14 mm.
The food of smaller individuals consists of copepods and mussel crabs , larger animals feed on krill , salps and arrow worms . The eggs of Argyropelecus affinis float like its larvae as plankton in the water. The fish species is irrelevant for commercial fishing.
Web links
- Argyropelecus affinis on Fishbase.org (English)