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Seascape, genetic diversity and global population structure of the hammerhead shark Sphyrna zygaena

Abstract

The increasing exploitation of sharks in the last decades has become a subject of international concern with estimates of population declines surpassing 90% in several species. Among these, the hammerhead shark Sphyrna zygaena is found all over the world, in temperate and tropical seas, being one of the largest and most widely distributed sharks of the genus. However, few data on population trends are currently available, despite the priorities established by the United Nations Convention on the Law of the Sea, of which Brazil is a part, for species of global distribution that are highly migratory. In this sense, the application of the state of the art in genomics, associated to the environmental patterns and characteristics, can contribute to the elucidation of several fundamental aspects for the biological knowledge, evolutionary history, distribution and local adaptations of a species. Thus, we present a proposal for an integrative study of the marine landscapes of the Atlantic, Pacific and Indian Oceans, genotyping of SNPs and mitochondrial DNA sequences of S. zygaena hammerhead shark for the characterization of genetic diversity, genus flow patterns, population structure and Phylogeography In a global spatial context. The proposed results will cover important knowledge and will provide subsides to international management and conservation plans. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BUNHOLI, INGRID VASCONCELLOS; DA SILVA FERRETTE, BRUNO LOPES; DOMINGUES, RODRIGO RODRIGUES; ROTUNDO, MATHEUS MARCOS; MARTIN CUEVAS, JUAN; GARCIA, MIRTA; GOMEZ, SEBASTIAN; ACHE DE FREITAS, RENATO HAJENIUS; OLIVEIRA, CLAUDIO; FORESTI, FAUSTO; et al. Multilocus phylogeography of the endemic and endangered angular angelshark (Squatina guggenheim) in the Southwest Atlantic Ocean. Hydrobiologia, v. 849, n. 9, p. 16-pg., . (17/17605-3)
DA SILVA FERRETTE, BRUNO LOPES; MOURATO, BRUNO; VIEIRA HAZIN, FABIO HISSA; AROCHA, FREDDY; WILLIAMS, SAMUEL MACKEY; RODRIGUES JUNIOR, CARLOS EGBERTO; PORTO-FORESTI, FABIO; DE AMORIM, ALBERTO FERREIRA; ROTUNDO, MATHEUS MARCOS; COELHO, RUI; et al. lobal phylogeography of sailfish: deep evolutionary lineages with implications for fisheries managemen. Hydrobiologia, v. 848, n. 17, p. 3883-3904, . (16/09204-6, 17/17605-3, 18/20610-1, 14/26508-3, 11/23787-0)
LOPES DA SILVA FERRETTE, BRUNO; COELHO, RUI; PEDDEMORS, VICTOR MARTEN; OVENDEN, JENNIFER R.; DE FRANCO, BRUNO ALEXANDRE; OLIVEIRA, CLAUDIO; FORESTI, FAUSTO; MENDONCA, FERNANDO FERNANDES. Global phylogeography of the smooth hammerhead shark: Glacial refugia and historical migration patterns. AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS, v. 31, n. 9, . (17/17605-3, 11/23787-0)

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