Etmopterus dislineatus
| Etmopterus dislineatus | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Etmopterus dislineatus | ||||||||||||
| Last , Burgess & Séret , 2002 |
Etmopterus dislineatus is a species of the genus Etmopterus within the lantern sharks (Etmopterinae; is also classified in part as the Etmopteridae family).
Appearance and characteristics
Etmopterus dislineatus is a small shark with a known body length of about 34 centimeters with a maximum length of at least 45 centimeters. It has a relatively elongated body typical of lantern sharks, with a long, broad head that is flattened on the top. The body color is light silvery brown with a drawing of interrupted dark lines on the flanks and a darker underside. It also 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, 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 of the southwest Pacific off the coast of northeast Australia (isolated evidence). Here he is known from depths of 590 to 700 m.
Way of life
Etmopterus dislineatus 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 dislineatus 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 dislineatus 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
- Etmopterus dislineatus on Fishbase.org (English)
literature
- Leonard Compagno , Marc Dando, Sarah Fowler: Sharks of the World. Princeton Field Guides, Princeton University Press , Princeton and Oxford 2005; Pp. 98-99. ISBN 978-0-691-12072-0 .