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Genetic connectivity, phylogeography and pelagic sharks conservation in the Western Atlantic Ocean

Grant number: 13/08675-7
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2013
Effective date (End): December 31, 2016
Field of knowledge:Biological Sciences - Zoology - Applied Zoology
Principal Investigator:Otto Bismarck Fazzano Gadig
Grantee:Rodrigo Rodrigues Domingues
Home Institution: Instituto de Biociências (IB-CLP). Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil


The sharks Carcharhinus falciformis and Carcharhinus signatus are characterized by inhabit epipelágico environment, warm waters and temperate worldwide and are highly migratory. Furthermore, area overly captured by industrial fisheries of various country, like bycatch, mainly by fisheries pelagic longline, that main catch of tunas and swordfish. Therefore, conservation actions require efforts of various country, task in the Atlantic Ocean racing at International Commission for the Conservation of Atlantic Tunas - ICCAT. Due to the overfishing, actually more of 90% of the large pelagic fishes, include sharks overexploited in worldwide. Furthermore, the southwestern of Atlantic Ocean, is an strategic area of conservation this species, why be considered a hotspot of richness and diversity of the sharks species. The goal this project, is infer about the actually population status of C. falciformis and C. signatus in western Atlantic Ocean, including analysis about environmental and spatial effects about the distribution and abundance this species. Furthermore, will be analyzed aspects of genetics variability of the Oceanic Atlantic population. The results may be utilized in the management fisheries these species, that are classified by the IUCN Red List (International Union for Conservation of Nature) with status of the near threatened (C. falciformis) and vulnerable (C. signatus), respectively.

Articles published in other media outlets (1 total):
Forbes (EUA) online: Sex And Mucus: Uncovering Rays' Secrets (06/May/2019)

Scientific publications (6)
(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)
DOMINGUES, RODRIGO R.; GARRONE-NETO, DOMINGOS; HILSDORF, ALEXANDRE W. S.; GADIG, OTTO B. F. Use of mucus as a non-invasive sampling method for DNA barcoding of stingrays and skates (batoid elasmobranchs). Journal of Fish Biology, v. 94, n. 3, p. 512-516, MAR 2019. Web of Science Citations: 0.
DOMINGUES, RODRIGO R.; BRUELS, CHRISTINE C.; GADIG, OTTO B. F.; CHAPMAN, DEMIAN D.; HILSDORF, ALEXANDRE W. S.; SHIVJI, MAHMOOD S. Genetic connectivity and phylogeography of the night shark (Carcharhinus signatus) in the western Atlantic Ocean: Implications for conservation management. AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS, v. 29, n. 1, p. 102-114, JAN 2019. Web of Science Citations: 1.
DOMINGUES, RODRIGO RODRIGUES; SILVA HILSDORF, ALEXANDRE WAGNER; FAZZANO GADIG, OTTO BISMARCK. The importance of considering genetic diversity in shark and ray conservation policies. CONSERVATION GENETICS, v. 19, n. 3, p. 501-525, JUN 2018. Web of Science Citations: 12.
DOMINGUES, RODRIGO R.; HILSDORF, ALEXANDRE W. S.; SHIVJI, MAHMOOD M.; HAZIN, FABIO V. H.; GADIG, OTTO B. F. Effects of the Pleistocene on the mitochondrial population genetic structure and demographic history of the silky shark (Carcharhinus falciformis) in the western Atlantic Ocean. Reviews in Fish Biology and Fisheries, v. 28, n. 1, p. 213-227, MAR 2018. Web of Science Citations: 7.
DOMINGUES, RODRIGO R.; CALTABELLOTTA, FABIO P.; AMORIM, ALBERTO F. Length-length and length-weight relationships of Carcharhinus falciformis and C.signatus (Carcharhinidae: Carcharhinus) caught by commercial fisheries in the Southwest Atlantic Ocean. REGIONAL STUDIES IN MARINE SCIENCE, v. 6, p. 83-86, JUL 2016. Web of Science Citations: 4.
DOMINGUES, R. R.; MONTEALEGRE-QUIJANO, S.; SOTO, J. M. R.; AMORIM, A. F. Five new records of Luvarus imperialis (Acanthuroidei: Luvaridae) in the south-west Atlantic Ocean. Journal of Fish Biology, v. 86, n. 3, p. 1203-1208, MAR 2015. Web of Science Citations: 0.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
DOMINGUES, Rodrigo Rodrigues. Conectividade genética, filogeografia e conservação de tubarões pelágicos no Oceano Atlântico ocidental. 2016. 156 f. Doctoral Thesis - Universidade Estadual Paulista "Júlio de Mesquita Filho" Instituto de Biociências (Campus de Rio Claro)..

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