ML072080207

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Biological Profiles: Dusky Shark
ML072080207
Person / Time
Site: Oyster Creek
Issue date: 01/17/2007
From:
Univ of Florida
To:
Office of Nuclear Reactor Regulation
Davis J NRR/DLR/REBB, 415-3835
References
Download: ML072080207 (1)


Text

FlojdMseum of Natural History Ichthyology Department Page 1 of 5 HOME COLLECTION EDUCATION IMAGE GALLERY SOUTH FLORIDA ORGANIZATIONS MEETINGS STAFF SHARK TROPICAL FRESHWATER BIOLOGICAL JUST FOR KIDS IN THE NEWS SITE LINKS FLMNH RESEARCH RESEARCH PROFILES Education Biological Profiles FSEARC7H Education Selections...

DUSKY SHARK Order: Carcharhiniformes Family: Carcharhinidae Genus: Carcharhinus Species: obscurus Above: ex Kato, Springer & Wagner (1967) Bur. Comm. Fish. Circ. 271 Below: Photo by George Burgess© Taxonomy Lessueur first described the dusky shark in 1818 and classified it as Squalus obscurus, later renaming it the currently valid name Carcharhinusobscurus. The genus name Carcharhinusis derived from the Greek "karcharos" = sharpen and "rhinos"

= nose. Obscurus can be translated from Latin as "dark, indistinct." Since its original description, this shark has appeared in the literature under several different names, including Geleolamna greyi Owen 1853, Carchariasmacrurus Ramsay & Ogilby 1887, Galeolamna (Galeolamnoides)eblis Whitley 1944, Carcharhinusiranzae Fourmanoir 1961, and Carcharhinus obscurella Deng, Xiong & Zhan 1981.

Common Names Common English language names for this shark include bay-shark, black whaler, bronze whaler, brown dusky shark, brown shark, common whaler, dusky ground shark, dusky shark, shark, and shovelnose. Other names include arenero (Spanish),

blauhai (German), cag~o fidalgo (Portuguese), caz6n (Spanish), donkerhaai (Afrikaans), dotabuka (Japanese), estrela (Portuguese), karcharynos skotinochromos (Greek), k6pek baligi (Turkish), lamia (Spanish), marracho areneiro (Portuguese), requiem de sable (French), schemerhaai (Dutch), squalo scuro (Italian), sumuhai (Finnish), tibur6n arenero (Spanish), and zarlacz ciemnosk6ry (Polish).

Geographical Distribution The dusky shark isa cosmopolitan species that occurs along continental coastlines in tropical and temperate waters. It ranges from Nova Scotia to Cuba (including the northern Gulf of Mexico) and from Nicaragua to southern Brazil in the http://www.flmnh.ufl.edu/fish/Gallery/Descript/duskyshark/duskyshark.html1/720 1/17/2006