Bathymetric trends of northeastern Brazilian snappers (Pisces, Lutjanidae): implications for the reef fishery dynamic

Frédou, Thierry; Ferreira, Beatrice Padovani

doi:10.1590/s1516-89132005000600015

Cited by 53 publications

(57 citation statements)

References 18 publications

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“…Starck (1970), for example, observed changes in diet of juveniles and adults of Lutjanus griseus (Linnaeus, 1758) related with the migration from estuarine areas to deeper waters. Our data generally agree with this statement, because juveniles and sub-adults of L. analis occur in estuarine and marine coastal environments (Randall, 1967;Allen, 1985;Claro & Lindeman, 2004;Pimentel & Joyeux, 2010), while adults inhabit hard substrates in offshore waters and reef environments (Cocheret de la Morinière et al, 2003;Frédou & Ferreira, 2005).…”

Section: Discussionsupporting

confidence: 85%

“…Sub-adults and juveniles are found in a variety of habitats, such as sand bottoms, seaweed dominated reefs, bays, mangroves, and estuaries (Allen, 1985;Claro & Lindeman, 2004). Adults are found on hard substrates, generally on offshore deep reefs and less commonly on coastal environments (Cocheret de la Morinière et al, 2003;Frédou & Ferreira, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Feeding ecology of Lutjanus analis (Teleostei: Lutjanidae) from Abrolhos Bank, Eastern Brazil

2011

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Diet and feeding ecology of the mutton snapper Lutjanus analis were investigated in the Abrolhos Bank, Eastern Brazil, the largest and richest coral reefs in the South Atlantic, where about 270 species of reef and shore fishes occur. To evaluate seasonal and ontogenetic shifts in the diet, specimens of L. analis were obtained through a fish monitoring program in four cities in southern Bahia State, from June 2005 to March 2007. Stomachs from 85 mutton snappers that ranged in size from 18.1 to 74.0 cm TL were examined. Prey were identified to the lowest possible taxon and assessed by the frequency of occurrence and volumetric methods. Variations in volume prey consumption were evaluated using non-metric multi-dimensional scaling ordination, analysis of similarity, and similarity percentage methods. Significant differences in diet composition among size classes were registered, whereas non significant differences between seasons were observed. Considering size-classes, food items consumption showed important variations: juveniles (<34.0 cm TL) fed mostly on crustaceans, sub-adults (34.1-50.0 cm TL) showed a diversified diet and adults (>50.1 cm TL) consumed basically fish, mostly Anguiliformes. Lutjanus analis is an important generalist reef predator, with a broad array of food resources and ontogenetic changes in the diet. This snapper species plays an important role on the trophic ecology of the Abrolhos Bank coral reefs.Foram avaliadas a dieta e a ecologia alimentar da cioba Lutjanus analis no Banco dos Abrolhos, Leste do Brasil. O Banco dos Abrolhos abrange os maiores e mais diversos recifes de corais do Atlântico Sul, onde cerca de 270 espécies de peixes recifais e costeiros ocorrem. Para a avaliação das variações sazonais e ontogênicas na dieta, exemplares de L. analis foram obtidos através de um programa de monitoramento em quatro cidades do extremo sul da Bahia, entre junho de 2005 e março de 2007. Estômagos de 85 exemplares com comprimento total variando entre 18,1 e 74,0 cm foram examinados. Os itens alimentares foram identificados até o menor nível taxonômico possível e avaliados através dos métodos de frequência de ocorrência e volumétrico. Variações no consumo das presas foram avaliadas através do método de escalonamento multidimensional não-métrico e métodos de análise de similaridade e percentagem de similaridade. Diferenças significativas na dieta foram observadas entre as classes de tamanho, porém estas não foram detectadas entre as estações do ano. Considerando as classes de tamanho, os itens consumidos apresentaram importantes variações: os juvenis (<34,0 cm CT) alimentaram-se preferencialmente de crustáceos, os subadultos (34,1-50,0 cm CT) apresentaram uma dieta diversificada e os adultos (>50,1 cm CT) consumiram basicamente peixes, principalmente Anguiliformes. Lutjanus analis é um importante predador recifal generalista, que consome um amplo espectro de presas, apresentando mudanças ontogênicas na dieta. Esse lutjanídeo desempenha um importante papel na ecologia trófica dos recifes de corais ...

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Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Feeding ecology of Lutjanus analis (Teleostei: Lutjanidae) from Abrolhos Bank, Eastern Brazil

2011

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“…It inhabits coastal areas associated with reefs or islands. Juveniles are usually found in estuaries or close to shore, among sea grasses and coral reefs, whereas adults tend to occur on the outer shelf, mostly in the 20-80 m depth stratum (CARVALHO-FILHO, 1999;FRÉDOU;FERREIRA, 2005). Mutton snappers are carnivorous, feeding primarily on crustaceans, fish and molluscs (MENEZES; FIGUEIREDO, 1980).…”

Section: Introductionmentioning

confidence: 99%

“…The fishing industry in northeastern Brazil is characterized by predominance of artisanal fisheries (CASTELLO, 2010). Reef-associated fish represent almost half of the total catch by weight, and the mutton snapper is one of the main targets of this fishery (FRÉDOU;FERREIRA, 2005). Because of its high commercial value and the current overexploitation of its natural stocks, L. analis has been identified as one of the best prospects for aquaculture (WATANABE et al, 1998), and preliminary studies in floating net cages have suggested that production of this fish is viable (BENETTI et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Parasites of the Mutton Snapper Lutjanus analis (Perciformes: Lutjanidae) in Alagoas, Brazil

Hermida

Carvalho

Cruz

et al. 2014

Rev. Bras. Parasitol. Vet.

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A parasitological survey was carried out on a sample of sixty mutton snappers (Lutjanus analis) that were caught on the coast of Alagoas, northeastern Brazil. The parasite diversity and infection levels were low. The ectoparasite Rocinela signata Schioedte & Meinert, 1879 (Isopoda: Aegidae), and larvae of two endoparasites, Trypanorhyncha gen. sp. and Hysterothylacium sp. (Nematoda: Anisakidae), were detected. The significance of these parasites is discussed in the context of their transmission pathways and potential impact.

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“…For example, the snappers accounted for 38% of the catch in the region of Porto Seguro, Southern Bahia State (Brazil) (Costa et al, 2003;data from 1997to 1999. The exploitation of L. jocu in Northeastern Brazil began in 1978 (Frédou & Ferreira, 2005) and is currently one of the main species in the artisanal and small and medium scale fisheries in the region, with 665 tons landed in (IBAMA, 2007. In 2005, 0.6 % (293 tons) of the total catches in Bahia State was dog snappers (IBAMA, 2007).…”

Section: Introductionmentioning

confidence: 99%

Age and growth of the dog snapper Lutjanus jocu (Bloch & Schneider, 1801) in Abrolhos Bank, Northeastern Brazil

et al. 2011

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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) and another assuming constant coefficient of variation, i.e. variance increasing as a function of average size (CVVB). The SVB estimates were Loo = 87.82 cm, K = 0.10, and t0 = -1.486 and the CVVB estimates were Loo = 117.60 cm, K = 0.06, and t0 = -2.470. The largest Loo values estimated by the CVVB model are supported by reports from the literature of larger animals occurring in the deeper outer shelf of Abrolhos Bank. Growth parameters were also estimated for males and females separately (SVB model) (Loo = 92.80 cm, K = 0.099, and t0 = -1.680 for males, and Loo = 82.10 cm, K = 0.105, and t0 = -1.570 for females).

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Bathymetric trends of northeastern Brazilian snappers (Pisces, Lutjanidae): implications for the reef fishery dynamic

Abstract: ABSTRACT

Cited by 53 publications

References 18 publications

Feeding ecology of Lutjanus analis (Teleostei: Lutjanidae) from Abrolhos Bank, Eastern Brazil

Feeding ecology of Lutjanus analis (Teleostei: Lutjanidae) from Abrolhos Bank, Eastern Brazil

Parasites of the Mutton Snapper Lutjanus analis (Perciformes: Lutjanidae) in Alagoas, Brazil

Age and growth of the dog snapper Lutjanus jocu (Bloch & Schneider, 1801) in Abrolhos Bank, Northeastern Brazil

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