Etmopterus evansi
| Etmopterus evansi | ||||||||||||
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| Scientific name | ||||||||||||
| Etmopterus evansi | ||||||||||||
| Last , Burgess & Séret , 2002 |
Etmopterus evansi is a species of the genus Etmopterus within the lantern sharks (Etmopterinae; also classified as the Etmopteridae family). Etmopterus evansi 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 in the southwest Pacific off the coast of northwest Australia and Indonesia in the Arafura Sea .
Appearance and characteristics
Etmopterus evansi is a 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 and at the same time wide and flattened head. The body color is light brown and a darker underside. It has black markings behind the anal fins, on the caudal peduncle and on the central and upper part of the caudal fin. 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 begins far behind the pectoral fins and is smaller and flatter than the second and has a small spine, while the spine of the second dorsal fin is strong and as high as the fin. Like all species in the family, the animals have five gill slits and an injection hole behind the eye.
distribution
The distribution area of this species includes parts in the southwest Pacific off the coast of northwest Australia and Indonesia in the Arafura Sea . Here he is known from depths of 430 to 550 meters.
Way of life
Etmopterus evansi lives in the area of sandbanks and reefs of the continental shelf . 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 evansi 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
- ↑ a b Etmopteridae .: Lantern sharks. In: Compagno et al. 2004.
- ↑ Etmopterus evansi 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.
literature
- Leonard Compagno , Marc Dando, Sarah Fowler: Sharks of the World. Princeton Field Guides, Princeton University Press , Princeton / Oxford 2005, ISBN 978-0-691-12072-0 , p. 99.
Web links
- Etmopterus evansi on Fishbase.org (English)