Pdf the smooth hammerhead sphyrna zygaena is the third most captured shark species in peru, a nation with. Pdf complete mitogenome sequences of smooth hammerhead. Metabolic rates of juvenile scalloped hammerhead sharks sphyrna lewini. A smooth hammerhead shark sphyrna zygaena from southwest. Members in the sphyrna group measure in size from the scoophead, which is 100 centimeters 1 meter long, to the great hammerhead shark, which is 610 centimeters 6. Abstract the smooth hammerhead shark sphyrna zygaena sphyrnidae is regularly caught as bycatch in.
In australia, sphyrna zygaena is found from central nsw south to central western. A smooth hammerhead shark sphyrna zygaena was found in saint peter and saint paul archipelago in may 2015. The complement system of elasmobranches revealed by liver. The first confirmed record of a smooth hammerhead shark sphyrna zygaena in british waters for 140 years is described. Metabolic rates of juvenile scalloped hammerhead sharks sphyrna. First record of youngoftheyear scalloped hammerhead shark. Members of this group are usually light grey or brownish grey in colour with a tint of. Sphyrna from the greek word hammer is a genus of hammerhead sharks with a cosmopolitan distribution in the worlds oceans. The smalleye hammerhead shark weighs around 9 kg, and the great hammerhead shark weighs about 230 kg. Media in category sphyrna the following 5 files are in this category, out of 5 total. This is the first confirmed occurrence of a smooth hammerhead shark in an equatorial oceanic island and suggests a geographic range extension for the species. Age and growth of the smooth hammerhead shark, sphyrna.
Pdf trophic ecology of the smooth hammerhead shark sphyrna. Color deep olive to brownishgray above, shading to white below. Conservation status of new zealand chondrichthyans chimaeras, sharks and rays, 2016 pdf. The biology and conservation status of the large hammerhead shark complex. The head section of the specimen was found washed ashore in relatively good condition at portreath, southwest england, in december 2004. Pdf we report the first mitogenome sequences of the circumglobally distributed, highly mobile, smooth hammerhead shark, sphyrna zygaena, from the. The smooth hammerhead sphyrna zygaena is a species of hammerhead shark, and part of the family sphyrnidae.
Sphyrna lewini exhibits strong intraspecific segrega tion. Scalloped hammerhead shark sphyrna lewini proposed action listing on cites appendix ii listing on appendix ii for lookalike species. The electrosensorial pore system of the cephalofoil in the four most. First record of scalloped hammerhead shark sphyrna lewini.
Sims marine biological association of the united kingdom,the laboratory,citadel hill,plymouth,pl1 2pb,uk. Pdf first record of the smooth hammerhead shark sphyrna. Dps of the scalloped hammerhead shark sphyrna lewini is listed as threatened, and the eastern pacific dps of scalloped hammerhead is listed as endangered under the esa 79 fr 38214. Smooth hammerhead shark nsw department of primary industries. Sharks were subjected to tonic immobility during manual handling according.
A smooth hammerhead shark sphyrna zygaena from south. Sphyrna simple english wikipedia, the free encyclopedia. The capture and transport of scalloped hammerhead sharks sphyrna lewini. Distribution and movements of scalloped hammerheads sphyrna lewini and smooth hammerheads sphyrna zygaena along the east coast of south africa. Complete mitogenome sequences of smooth hammerhead sharks. Pdf the biology and conservation status of the large.
This species is named smooth hammerhead because of the distinctive shape of the head, which is flattened and laterally extended into a hammer shape called the cephalofoil, without an indentation in the middle of the front margin hence smooth. The smooth hammerhead shark, sphyrna zygaena linnaeus 1758, is a cosmopolitan pelagic hammerhead shark occurring from close inshore to o. Pdf first record of scalloped hammerhead shark sphyrna. Smooth hammerhead shark landings smooth hammerhead shark subtotal 19,497. Conabio also formulated 11 technical opinions regarding management plans for cites species ovis canadensis. The smooth hammerhead sphyrna zygaena is a species of hammerhead shark, and part of. A smooth hammerhead shark sphyrna zygaena from southwest england emily j. Great hammerhead sphyrna mokarran smooth hammerhead sphyrna zygaena lead proponent brazil, costa rica, honduras cosponsors colombia, ecuador, european union, mexico annotation entry into effect delayed by 18 months to allow parties. A winter record of sphyrna zygaena from long island. A comparison of atlantic and pacific specimens of the. The great hammerhead shark sphyrna mokarran is a circumtropical species that lives in. Members of sphyrna have a tendency to inhabit coastal waters along the intertidal zone rather than the open ocean, as their prey items such as invertebrates, fish, rays, small crustaceans and other benthic organisms hiding in the sands and sediment along. Pdf a smooth hammerhead shark sphyrna zygaena was found in saint peter and saint paul archipelago in may.1475 188 686 40 178 1367 865 98 921 243 256 829 914 78 216 1121 177 461 315 879 421 459 1455 603 1198 707 238 1288 301 1244 1430 1000 1043 815 581 684 81 1129 621 897 1399 486 1087 694 1180 1308 559