Rusty collar shark [1] ( lat. Parascyllium ferrugineum ) is a species of the genus of collar sharks of the same family of the Wobbegong -like order . It lives in the eastern part of the Indian Ocean at a depth of up to 150 m. The maximum recorded size is 80 cm. It is propagated by egg-bearing . Not subject to commercial fishing [2] [3] .
| Rusty collar shark |
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| Scientific classification |
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| No rank : | Bilateral symmetrical |
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| International scientific name |
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Parascyllium ferrugineum McCulloch , 1911 |
| Synonyms |
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Parascyllium multimaculatum Scott, 1935 |
| Area |
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| Security status |
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Least ConcernedIUCN 3.1 Least Concern : 41842 |
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Content
The species was first scientifically described in 1911 [4] . The holotype represents an individual 53 cm long, caught off the coast of Victoria, Australia (38 ° S 49 ° E) [5] . Species epithet comes from the word lat. ferrugo - "rusty" [6] .
Rusty collar sharks live in the eastern Indian Ocean. They are endemic to the southern coast of Australia ( South Australia , Tasmania , Victoria , Western Australia ). They are found in temperate waters along the edge of the continental shelf at a depth of 5 to 150 [2] .
Rusty collar sharks have a thin elongated body and a short snout. The base of the first dorsal fin is located behind the free tip of the ventral fins. The mouth is located before the eyes, there are narrow nasal grooves, the nostrils are surrounded by folds. Slit-like eyes are elongated horizontally. Behind the eyes are tiny splatter . Dorsal fins of the same size, spines at their base absent. Medium pectoral fins rounded. The anal fin is smaller than the second dorsal fin. Its base is located in front of the base of the second dorsal fin. The caudal fin is asymmetric, with an ventral notch at the edge of the upper lobe. The lower lobe is absent. Around the branchial zone there is a weakly expressed “necklace”. The body, tail and caudal fin cover 6 saddle-shaped dull marks. In addition, large dark spots are scattered throughout the body and fins, with the exception of the pectorals. With the exception of the pectoral fins, large dark spots are covered. The main color is gray-brown [3] .
Rusty collar sharks breed by oviposition. The diet consists of bottom crustaceans and mollusks. These sharks lead a nocturnal lifestyle, and during the day they hide in shelters [7] [3] .
Rusty collar sharks are not a commercial target. As by- catch, they are caught in bottom trawls. The International Union for Conservation of Nature has assigned this species a conservation status of “Least Concerns” [8] .
- ↑ Reshetnikov Yu.S. , Kotlyar A.N. , Russ T.S. , Shatunovsky M.I. The Bilingual Dictionary of Animal Names. Fish. Latin, Russian, English, German, French. / edited by Acad. V. E. Sokolova . - M .: Rus. Yaz., 1989 .-- S. 19 .-- 12,500 copies. - ISBN 5-200-00237-0 .
- ↑ 1 2 Last, PR and JD Stevens. Sharks and Rays of Australia. - 3rd. - Harvard University Press, 1994. - ISBN 0674034112 .
- ↑ 1 2 3 4 Compagno, Leonard JV 1. Hexanchiformes to Lamniformes // FAO species catalog. - Rome: Food and Agricultural Organization of the United Nations, 1984. - Vol. 4. Sharks of the World: An Annotated and Illustrated Catalog of Shark Species Known to Date. - P. 171–172. - ISBN 92-5-101384-5 .
- ↑ McCulloch, AR (1911) Report on some fishes obtained by the FIS ENDEAVOR on the coasts of Queensland, New South Wales, Victoria, Tasmania, South and southwestern Australia. Part I. Biological Results Endeavor, 1 (1): 1-87, figs 1-20, pls 1-16
- ↑ Parascyllium ferrugineum (neopr.) . Shark references. Date of treatment November 28, 2013.
- ↑ On-line ethymology dictionary (neopr.) . Date of treatment November 26, 2013.
- ↑ Compagno Leonard JV 2 // SHARKS OF THE WORLD: An Annotated and Illustrated Catalog of Shark Species Known to Date. -. - Rome :: Food & Agriculture Organization of the United Nations, 2002. - T. 4. - ISBN 9251045437 .
- ↑ Heupel, MR 4 (SSG Australia & Oceania Regional Workshop, March 2003) 2003. Parascyllium ferrugineum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 28 November 2013.
