Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Elasmobranchii"”.
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Revisão taxonômica da família Rajidae no Brasil (Chondrichthyes, Elasmobranchii, Rajiformes)
A taxonomic review of the rajid fishes occurring in Brazilian waters were held. The taxonomic arrangement as well as recent captures of deep water specimens included in this study, increased in 37% the number of Brazilian Rajidae. New taxons and also new records of occurrence were described. A …
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Parasite assemblages of three endemic catshark species from the west and south coasts of South Africa
… on the parasite assemblages of three catshark (Elasmobranchii: Scyliorhinidae) species: the dark shyshark, Haploblepharus pictus, the puffadder shyshark, H. edwardsii and the pyjama shark, Poroderma africanum, all endemic to Southern Africa. These sharks are found from Namibia to Agulhas (H. …
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Distribuição dos peixes nos estuários do nordeste brasileiro de acordo com a salinidade da água
… refered, and only two species are of the Class Elasmobranchii . On the basis of the 142 species studied, the fishes of the estuaries of the northeast Brazil were placed into 5 ichthyofaunistic components: fresh water, oligohaline, marine stenohaline, marine euryhaline and complet euryhaline. The …
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Studies on the diversity and distribution of marine ichthyoparasites in Southern Africa
… spread across the classes Actinopterygii (186), Elasmobranchii (80), Holocephalii (2) and Myxini (1). Host species with the most diverse parasite assemblages were species of commercial significance, namely Thyrsites atun (20) followed by Merluccius capensis (17). The dominance of arthropods and …
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Analisi della variabilità genetica e della connettività tra popolazioni di due specie di Elasmobranchi: Raja clavata L.,1758 e Scyliorhinus canicula (L., 1758)
Studies concerning the status of conservation and exploitation of cartilaginous fish are essential to better understanding the biology and degree of threat of this important taxonomic group, that takes on great importance for his ecological role in the control of coastal and oceanic ecosystems. …