Cylindrical lantern shark
| Cylindrical lantern shark | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cylindrical lantern shark ( Etmopterus carteri ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Etmopterus carteri | ||||||||||||
| Springer & Burgess , 1985 |
The cylindrical lantern shark ( Etmopterus carteri ) is a species of the genus Etmopterus within the lantern sharks (Etmopterinae; also classified as the family Etmopteridae). With a body length of only 16 to 20 centimeters and a weight of 150 grams, it is the smallest known species of shark, along with the dwarf lantern shark ( E. perryi ) . The range of this species only includes individual deep-sea marine areas on the coast of Colombia in the Caribbean .
Appearance and characteristics
The cylindrical lantern shark is a very small shark with a known body length of 16 to 20 centimeters and a body weight of 150 grams. It has an elongated body typical of the lantern sharks with a cylindrically shaped head. The body color is consistently brown without concentrations of the luminous organs typical of lantern sharks . The fins are drawn with a pale mesh pattern.
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 behind the end of the pectoral fins and is slightly smaller than the second dorsal fin. Like all species in the family, the animals have five gill slits and an injection hole behind the eye.
distribution
The range of this species only includes individual deep-sea marine areas on the coast of Colombia in the Caribbean . Here it is known from depths of 283 to 356 meters, but could also occur at greater depths.
Way of life
The cylindrical lantern shark lives near the coast above the continental shelf and occurs at depths of 283 to 356 meters and possibly also below. Like other sharks, it feeds in a predatory manner, likely on smaller fish and invertebrates. There are no data or observations about his way of life.
Like other species of the order, it is viviparous; further information on reproduction is missing.
Danger
The cylindrical lantern shark is not listed on the IUCN Red List . However, it is of no importance as a food fish and is therefore not fished specifically.
supporting documents
Web links
- Cylindrical lantern shark on Fishbase.org (English)
- Etmopterus carteri inthe IUCN 2013 Red List of Threatened Species . Listed by: Cavanagh, RD, 2006. Retrieved September 1, 2013.
literature
- Leonard Compagno , Marc Dando, Sarah Fowler: Sharks of the World. Princeton Field Guides, Princeton University Press , Princeton and Oxford 2005; Pp. 96-97. ISBN 978-0-691-12072-0