Etmopterus fusus

from Wikipedia, the free encyclopedia
Etmopterus fusus
Systematics
without rank: Sharks (selachii)
Superordinate : Squalomorphii
Order : Spiny dogfish (Squaliformes)
Family : Lantern Sharks (Etmopteridae)
Genre : Etmopterus
Type : Etmopterus fusus
Scientific name
Etmopterus fusus
Last , Burgess & Séret , 2002

Etmopterus fusus is a species of the genus Etmopterus within the lantern sharks (Etmopterinae; is also classified as the family Etmopteridae). It reaches a body length of about 25 centimeters with a maximum length of at least 30 centimeters. The distribution area of ​​this species includes parts of the eastern Indian Ocean off the coast of northwest Australia (isolated evidence) and possibly in the area of ​​the island of Java .

Appearance and characteristics

Etmopterus fusus is a very small shark with a known body length of about 25 centimeters with a maximum length of at least 30 centimeters. It has an elongated body typical of the lantern sharks, with a long, wide head that is flattened on the top. The body color is dark gray to black and the underside is very dark. It also has black markings above and behind the anal fins, on the caudal peduncle and on the central part of the caudal fin. The fins are slightly lighter than the body and have black edges. It also has the light organs typical of the lantern sharks on the belly side.

It has no anal fin and two dorsal fins with the order-typical spines in front of the dorsal fins. The first dorsal fin starts behind the pectoral fins and is less than half the size of the second. Like all species in the family, the animals have five gill slits and an injection hole behind the eye.

distribution

Distribution area of ​​the dwarf lantern shark

The distribution area of ​​this species includes parts of the eastern Indian Ocean off the coast of northwest Australia (isolated evidence) and possibly in the area of ​​the island of Java . Here he is known from depths of 430 to 550 m.

Way of life

Etmopterus fusus lives in the area of ​​the upper continental shelf to the bottom. Like other sharks, it feeds in a predatory manner, likely on smaller fish and invertebrates. Little data is available about his way of life. Like other species of order, it is viviparous ( ovoviviparous ).

Danger

Etmopterus fusus is listed as not endangered on the IUCN Red List . However, it is of no importance as a food fish and is therefore not fished specifically.

supporting documents

  1. ↑ a b Etmopteridae .: Lantern sharks. In: Compagno et al. 2004
  2. ↑ Etmopterus fusus in the endangered Red List species the IUCN 2008. Posted by: Kyne, PM & Cavanagh, RD (SSG Australia & Oceania Regional Workshop, March 2003), 2003. Retrieved on April 5 of 2009.

Web links

literature