Sphyrna zygaena pdf files

This species is named smooth hammerhead because of the distinctive shape of the head. Species diversity of the elasmobranch catch was high, with at least 54 species comprising 30. 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. Wildscreens arkive project was launched in 2003 and grew to become the worlds biggest encyclopaedia of life on earth. Pdf distribution, habitat and movement of juvenile smooth. Sporting a wide and smooth cephalophoil or hammerhead this seasonal migrant is the second largest in the genus sphyrna. Scalloped hammerhead shark sphyrna lewini, great hammerhead shark sphyrna mokarran, and smooth hammerhead shark sphyrna zygaena hereafter referred to collectively as hammerheads1 manta. Sphyrna zygaena linnaeus, 1758 scientific synonyms and common names sphyrna zygaena linnaeus, 1758 synonyms. Head broadly arched and hammershaped, lacking indentation at midline. Sphyrna from the greek word hammer is a genus of hammerhead sharks with a cosmopolitan distribution in the worlds oceans.

The smooth hammerhead shark, sphyrna zygaena, is a cosmopolitan semipelagic shark captured as bycatch in pelagic oceanic fisheries, especially pelagic longlines targeting swordfish andor tunas. Just upload files you want to join together, reorder them with draganddrop if you need and click join files button to merge the documents. The geographical designations employed in this document do not imply the. 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. However, it is not a legal authority for statutory or. Because these new listings were likely to require considerable work before the listings could be implemented, the date of entry onto cites appendix ii.

New zealand nondetriment finding for smooth hammerhead. Description, classification, synonyms, distribution map, bibliography and images of sphyrna zygaena smooth hammerhead. There are eight species of shark in the genus sphyrna. Information and translations of sphyrna zygaena in the most comprehensive dictionary definitions. Facts about the smooth hammerhead sphyrna zygaena from the shark research institute sri. Hammerhead sharks are large carnivorous fish that prey on large fish and occasionally.

This report was produced in response to a petition received from defenders of wildlife on april 27, 2015, to list the smooth hammerhead shark sphyrna zygaena as endangered or threatened under the. Inclusion of sphyrna lewini scalloped hammerhead shark in appendix ii in. Abstract trophic ecology of the smooth hammerhead shark. The smooth hammerhead sphyrna zygaena is a species of hammerhead shark, and part of the family sphyrnidae. This file is licensed under the creative commons attributionshare alike 3. The smooth hammerhead shark, sphyrna zygaena, occurs in warm temperate waters around the northern north island of new zealand. A coastalpelagic, semioceanic shark occurring over continental and insular shelves and adjacent deep water, often approaching close inshore and entering enclosed bays and estuaries ref. The complete mitochondrial genome of the endangered great. Pdf distribution and movements of scalloped hammerheads. This page was last edited on 16 december 2019, at 18. Coastal, pelagic, and semioceanic, but often bottom associated at 19 m ref.

The smooth hammerhead shark sphyrna zygaena can be distinguished from other species of hammerheads species by its wide and smooth cephalofoil, or hammer head, with a distinct notch at each end near the eye. The smooth hammerhead shark sphyrna zygaena can be distinguished from other species of hammerheads species by its wide and smooth cephalofoil, or. Order carcharhiniformes family sphyrnidae genus sphyrna species zygaena common names. The smooth hammerhead is widespread in temperate and tropical waters, and is distinguished from other hammerhead sharks by the single notch in the centre of its hammershaped head. National laws, multilateral agreements, regional and global regulations on shark protection and shark finning. Because these new listings were likely to require considerable work. Some of the earliest known sharks were called cladoselache claydoesellah kee. Pdf joiner allows you to merge multiple pdf documents and images into a single pdf file, free of charge. Members of sphyrna have a tendency to inhabit coastal waters.

Mitogenome announcement the complete mitochondrial genome of the endangered great hammerhead shark, sphyrna mokarran cassandra l. Sphyrna zyagena linnaeus, 1758 spyrna zygaena linnaeus, 1758 squalis pictus blainville, 1816 squalus carolinensis blainville, 1816 squalus malleus valenciennes, 1822 squalus zygaena linnaeus. Sharks have been on earth since before the dinosaurs. Hammerhead sharks are appropriately named after their flat shaped heads. The smooth hammerhead, sphyrna zygaena, is listed as vulnerable on the iucn red list of threatened species. National laws, multilateral agreements, regional and. With the help of over 7,000 of the worlds best wildlife filmmakers and photographers, conservationists and scientists, featured multimedia fact files. Two other large sharks closely related to the common hammerhead, the tropical hammerhead sphyrna lewini griffith, 1834 and the great hammerhead sphyrna mokarran ruppell, 1835 occur along the. Nondetriment finding ndf of sri lanka for hammerhead.

Trophic ecology of the smooth hammerhead shark sphyrna zygaena off the coast of northern peru. Smooth hammerhead sphyrna zygaena shark research institute. The smooth hammerhead is widespread in temperate and tropical waters, and is. Files are available under licenses specified on their description page.

Trophic ecology of the smooth hammerhead shark sphyrna. Sphyrna lewini sphyrna zygaena species with pregnant females documented in catch 28 1. Age and growth of the smooth hammerhead shark, sphyrna zygaena, in the eastern equatorial atlantic ocean, using vertebral sections article pdf available in aquatic living resources 2404. An easily recognized large hammerhead with a broad, narrowbladed head, anterior margin of head broadly arched in adults and without a median indentation at any. This coastal shark prefers shallow waters, and are reported to even venture in freshwater. The smooth hammerhead shark, sphyrna zygaena, is a. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Migrations and habitat use of the smooth hammerhead shark. All structured data from the file and property namespaces is available under the. Status in world register of marine species accepted name. Pdf the smooth hammerhead shark, sphyrna zygaena, occurs in warm temperate waters around the northern north island of new zealand. Sphyrna zygaena orden hexanchiformes familia hexanchidae notorynchus cepedianus orden squaliformes familia squalidae. The smooth hammerhead shark sphyrna zygaena is known to display a high degree of site fidelity to specific areas along the south african coastline. Pdf knowledge of population distribution and movement is crucial for the conservation and management of shark species occurring in coastal waters find.