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dc.contributor.authorCosta, Eudriano F. S.
dc.contributor.authorDias, June F.
dc.contributor.authorMurua, Hilario
dc.date.accessioned2017-08-23T08:52:06Z-
dc.date.available2017-08-23T08:52:06Z-
dc.date.issued2016
dc.identifierISI:000375288800008
dc.identifier.citationMARINE BIOLOGY RESEARCH, 2016, 12, 304-315
dc.identifier.issn1745-1000
dc.identifier.urihttp://dspace.azti.es/handle/24689/190-
dc.description.abstractThe aim of this study was to estimate the fecundity of six marine fish species from the southwest Atlantic off the coast of Sao Paulo State, Brazil. In particular, the number of oocytes in the most advanced vitellogenic stage (NDO), batch fecundity and the number of batches that will be produced were estimated. Specimens of longfinger anchovy Anchoa filifera, atlantic anchoveta Cetengraulis edentulus, bay whiff Citharichthys spilopterus, Stellifer brasiliensis, rake stardrum S. rastrifer and southern kingcroaker Menticirrhus americanus were captured bimonthly, from June (2012) to May (2013). The mature ovaries were removed, weighed, fixed in formalin solution and histologically analysed. All histological sections were photographed and the images analysed using advanced image processing techniques. The estimated number of batches that will be recruited to the germinal vesicle migration/hydrated stock ranged from one to four batches. NDO is positively related to ovarian and female size. Small females with low ovary weight produce low NDO. The NDO in A. filifera, C. edentulus and M. americanus may represent the final number of oocytes to be spawned in the next spawning event, which could be used for batch fecundity estimation. This study contributes to a better understanding of the reproduction of species inhabiting shrimp fishery grounds which are caught as by-catch in tropical and subtropical ecosystems. Information on the maturity and fecundity of these populations is an important element in assessing stock status and the degree of fishing pressure these populations are experiencing.
dc.description.sponsorshipThe authors are grateful to the Institute of Oceanography/University of Sao Paulo (IOUSP) for sampling support and to the Post-graduate Program in Oceanography/CAPES for a Doctorate Scholarship (grant number 7546/13-0).
dc.language.isoeng
dc.publisherTAYLOR \& FRANCIS AS
dc.subjectIndeterminate fecundity
dc.subjectmarine fishes
dc.subjectoocyte production
dc.subjectstereology
dc.subjectREPRODUCTIVE-BIOLOGY
dc.subjectMENTICIRRHUS-AMERICANUS
dc.subjectPERCIFORMES SCIAENIDAE
dc.subjectPOPULATION-STRUCTURE
dc.subjectSPAWNING DYNAMICS
dc.subjectBATCH FECUNDITY
dc.subjectFEEDING ECOLOGY
dc.subjectSOUTHERN BRAZIL
dc.subjectSANTA-CATARINA
dc.subjectOOCYTE GROWTH
dc.titleFecundity of fishes inhabiting coastal and estuarine environments in the southwest Atlantic Ocean
dc.typeArticle
dc.identifier.journalMARINE BIOLOGY RESEARCH
dc.format.page304-315
dc.format.volume12
dc.contributor.funderPost-graduate Program in Oceanography/CAPES \[7546/13-0]
dc.identifier.e-issn1745-1019
dc.identifier.doi10.1080/17451000.2015.1136065
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