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Age and growth of the dog snapper Lutjanus jocu (Bloch & Schneider, 1801) in Abrolhos Bank, Northeastern Brazil Neotropical Ichthyology
Previero,Marília; Minte-Vera,Carolina V.; Freitas,Matheus Oliveira; Moura,Rodrigo Leão de; Dei Tos,Claudenice.
We determined the age and growth of the dog snapper (Lutjanus jocu), caught in the region of Abrolhos Bank, Bahia State, by the fishermen from coastal communities of Prado, Alcobaça, Caravelas, and Nova Viçosa. We examined 205 sectioned otoliths of fish caught by harpoon, longline, hand line, and gill nets (14.5 to 79.5 cm fork length). The formation of each ring was considered annual. The sectioned otoliths showed between 0 and 29 rings. Nearly half of the analyzed specimens had between 0 and 7 rings (88 of 205). Fish caught with nets in the estuarine region were the juvenile, while fish caught with lines and harpoons were the oldest. Two von Bertalanffy growth models were fitted to length-at-age data: one assuming constant variance of length-at-age (SVB)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lutjanidae; Otoliths; Reef fisheries.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200017
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Feeding ecology of two sympatric species of large-sized groupers (Perciformes: Epinephelidae) on Southwestern Atlantic coralline reefs Neotropical Ichthyology
Freitas,Matheus O.; Abilhoa,Vinicius; Spach,Henry L.; Minte-Vera,Carolina V.; Francini-Filho,Ronaldo B.; Kaufman,Les; Moura,Rodrigo L..
ABSTRACT Red and black groupers are large-bodied opportunistic ambush predators commonly found in Southwestern Atlantic tropical reefs. We investigated the diet of both species in order to detail ontogenetic, spatial and temporal trends, and to assess the extent of overlap in resource use between these two sympatric predators on the Abrolhos Bank, Brazil. Decapods and fishes were the main food items of Epinephelus morio while fishes were the main prey of Mycteroperca bonaci. Both diets were significantly influenced by body size and habitat, but only smaller individuals of E. morio feed almost exclusively on crustaceans. While the two groupers rely on many of the same prey types, coexistence may be facilitated by E. morio feeding more heavily on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abrolhos Bank; Diet; Epinephelus morio; Feeding overlap; Mycteroperca bonaci.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200206
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Fisheries monitoring in Babel: fish ethnotaxonomy in a hotspot of common names Neotropical Ichthyology
Previero,Marília; Minte-Vera,Carolina V.; Moura,Rodrigo Leão de.
The lack of a long term, comprehensive and reliable fisheries statistics system is a major impediment to fisheries management in Brazil. Fishing is one of the main activities throughout the country's coast, with predominance of small-scale, artisanal, multigear, and multispecies captures that are landed in a pulverized network of coastal villages. Brazil is also a hotspot of common names, another feature that challenges artisanal fisheries' monitoring. We combined taxonomic and ethnobiological information to support the implementation of an artisanal fisheries' monitoring program under the co-management framework of a Marine Extractive Reserve in Bahia State, Northeastern Brazil. We surveyed 141 fishing landings, recording 86 fish species (43 families) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bahia; Corumbau; Cumuruxatiba; Local Ecological Knowledge; Marine Extractive Reserve.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200467
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