2009
DOI: 10.1590/s1679-62252009000200011
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Abstract: Sharks face a number of obstacles for surviving their first several years of life and many species occupy nursery areas. Although estimates of survival, particularly for young age classes, are essential for assessing, monitoring and effectively managing animal populations, there have been relatively few calculations of survival within shark populations and even fewer estimates based on direct methods for sharks on their nursery grounds. We used tag-recapture methods to estimate the population size and survival… Show more

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Cited by 20 publications
(8 citation statements)
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References 31 publications
(58 reference statements)
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“…In contrast, sharks are very common in the inhabited, but protected Fernando de Noronha Archipelago and in the remote, but also protected Atol das Rocas. These islands are nursery grounds for three shark species, the Caribbean reef shark Carcharhinus perezii (Poey 1876), the lemon shark Negaprion brevirostris (Poey 1868) and the nurse shark Ginglymostoma cirratum (Bonnaterre 1788) (Castro & Rosa, ; Freitas et al ., , , Garla et al ., , ). Along the coast, only G. cirratum were observed in two tropical sites and at most surveyed sites sharks were never recorded.…”
Section: Discussionmentioning
confidence: 99%
“…In contrast, sharks are very common in the inhabited, but protected Fernando de Noronha Archipelago and in the remote, but also protected Atol das Rocas. These islands are nursery grounds for three shark species, the Caribbean reef shark Carcharhinus perezii (Poey 1876), the lemon shark Negaprion brevirostris (Poey 1868) and the nurse shark Ginglymostoma cirratum (Bonnaterre 1788) (Castro & Rosa, ; Freitas et al ., , , Garla et al ., , ). Along the coast, only G. cirratum were observed in two tropical sites and at most surveyed sites sharks were never recorded.…”
Section: Discussionmentioning
confidence: 99%
“…Mortality rates for juvenile C. amboinensis estimated directly from telemetry data in this study were substantially lower than those reported for juveniles of other species using coastal marine environments. For example, direct estimates of mortality ranged from 0.35-0.75 y −1 for juvenile lemon sharks (Negaprion brevirostris) (Manire and Gruber, 1993;Gruber et al, 2001;de Freitas et al, 2009) and 0.61-0.91 y −1 for juvenile C. limbatus (Heupel and Simpfendorfer, 2002). Rather, mortality rates for juvenile C. amboinensis (total = 0.11-0.13 y −1 ) were more similar to those reported for juvenile bull sharks (Carcharhinus leucas) (total = 0.00-0.36 y −1 ; Heupel and Simpfendorfer, 2011).…”
Section: Discussionmentioning
confidence: 99%
“…Feitoza et al 2005;Pinheiro et al 2018), uso de habitat (e.g. Aguiar et al 2009;Gama e Rosa 2015;Medeiros et al 2016) e tamanho populacional (Castro e Rosa 2005;Freitas et al 2009). Quando se analisa o Currículo Lattes de Ricardo Rosa, se tem o registro de apenas um artigo que versa sobre os peixes de água doce da Caatinga.…”
Section: Pioneirismo Em Ictiologia Neotropicalunclassified