First record of Warren's sixgill sawshark Pliotrema warreni (Pristiophoriformes: Pristiophoridae) and the West African catshark Scyliorhinus cervigoni (Carcharhiniformes: Scyliorhinidae) in Namibia, and notes on the habitat of the bull shark Carcharhinus leucas (Carcharhiniformes: Carcharhinidae)

被引:0
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作者
Leeney, Ruth H. [1 ]
Ebert, David A. [2 ,3 ,4 ]
Grobler, Kolette [5 ]
机构
[1] Namibia Nat Fdn, Namibias Rays & Sharks, Swakopmund, Namibia
[2] Moss Landing Marine Labs, Pacific Shark Res Ctr, Moss Landing, MA 01475 USA
[3] South African Inst Aquat Biodivers, Grahamstown, South Africa
[4] Calif Acad Sci, Dept Ichthyol, San Francisco, CA USA
[5] Minist Fisheries & Marine Resources, Luderitz Marine Res Ctr, Luderitz, Namibia
关键词
elasmobranch; range extension; southeast Atlantic;
D O I
10.1017/S0025315423000899
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Warren's sixgill sawshark, Pliotrema warreni, is confirmed for the first time in Namibian waters, from two specimens. One specimen was collected by fisheries observers on a vessel fishing in southern Namibian waters in March 2010. The other was found dead on a beach in central coastal Namibia, in August 2014. The West African catshark, Scyliorhinus cervigoni, is documented for the first time in northern Namibia, from a specimen recorded during surveys of chondrichthyan bycatch on a commercial bottom trawler. This extends the species' range southwards from Angola. Records of bull sharks Carcharhinus leucas are also documented, providing a better understanding of their distribution in Namibia. Several anglers have reported catching bull sharks in the Kunene River (from the riverbank on the Namibian side) and just south of the river mouth, along the Namibian coast.
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页数:4
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