Etmopterus baxteri
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| Garrick , 1957 |
Etmopterus baxteri is a species of the genus Etmopterus within the lantern sharks (Etmopterinae; also classified as the Etmopteridae family). The distribution area of this species includes parts of the Southwest Pacific around New Zealand and possibly areas in the western central Pacific and off the South African coast.
Appearance and characteristics
Etmopterus baxteri is a relatively large shark for the genus with a known body length of 55 to 60 cm, which can reach a maximum of 88 cm. 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 uniformly brown to black-brown. It has dark areas on the underside of the snout and abdomen, as well as behind and above the anal fin. It has another dark spot at the base of the caudal fin. The head is marked by an indistinct, triangular white spot. 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 further behind the pectoral fins and is about half the size of the second. The strong spine of the second dorsal fin is strongly curved. 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 around New Zealand and perhaps also areas in the western central Pacific and off the South African coast. Here he is known from depths of 878 to 1427 m meters.
Way of life
Etmopterus baxteri lives in the area of the continental shelf and on the island bases of its range. 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 the order, it is viviparous ( ovoviviparous ) with an average of 6 to 16 young per litter.
Danger
Etmopterus baxteri 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.
literature
- Leonard Compagno , Marc Dando, Sarah Fowler: Princeton Field Guides: Sharks of the World . Princeton University Press , Princeton and Oxford 2005, ISBN 978-0-691-12072-0 , pp. 94-95 .
Web links
- Etmopterus baxteri on Fishbase.org (English)
supporting documents
- ↑ a b Etmopteridae .: Lantern sharks. In: Compagno et al. 2004
- ↑ Etmopterus baxteri in the endangered Red List species the IUCN 2009 Posted by: Paul L. (SSG Australia & Oceania Regional Workshop, March 2003), 2003. Accessed on March 12 of 2009.