Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil

CAMARGO-ZORRO, Mauricio; ISAAC, Victoria Judith

Artigo

Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil

This study analyses the spatial and temporal distribution of the dominant Sciaenids in the Caeté estuary on the northern coast of Brazil. Samples were taken by otter trawls in four areas of the Caeté estuary between October 1996 and August 1997 six bimonthly. Stellifer rastrifer, Stellifer naso and...

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Autor principal:	CAMARGO-ZORRO, Mauricio
Outros Autores:	ISAAC, Victoria Judith
Grau:	Artigo
Idioma:	eng
Publicado em:	2015
Assuntos:	Peixe Distribuição espacial e temporal Sciaenidae Reprodução (Biologia) Estuário do Rio Caeté - PA Pará - Estado Amazônia brasileira
Acesso em linha:	http://repositorio.ufpa.br/jspui/handle/2011/6628

id	ir-2011-6628
recordtype	dspace
spelling	ir-2011-66282019-05-23T11:11:48Z Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil CAMARGO-ZORRO, Mauricio ISAAC, Victoria Judith Peixe Distribuição espacial e temporal Sciaenidae Reprodução (Biologia) Estuário do Rio Caeté - PA Pará - Estado Amazônia brasileira This study analyses the spatial and temporal distribution of the dominant Sciaenids in the Caeté estuary on the northern coast of Brazil. Samples were taken by otter trawls in four areas of the Caeté estuary between October 1996 and August 1997 six bimonthly. Stellifer rastrifer, Stellifer naso and Macrododon ancylodon presented the highest biomass out of eleven species of Sciaenidae caught. Minimum and mean length at first maturity were calculated and the main spawning periods determined. Changes in the spatio-temporal distribution of the three species were related to seasonal changes in estuarine salinity and spawning pulses. Larvae and juveniles of S. rastrifer, S. naso and M. ancylodon were found in the inner estuary while larger specimens were more abundant in the outer estuary with higher salinities. M. ancylodon spawned from October to February and rested from April to August whereas S. rastrifer and S. naso spawned throughout the year, though with two peaks, in October-December and June. O presente estudo caracteriza a distribuição espaço-temporal dos peixes com maior abundância dentre a família Sciaenidae no estuário do rio Caeté, litoral norte do Brasil. Estima-se o comprimento de inicio da maturação sexual, o comprimento médio da primeira maturação sexual e os períodos de desova. Para tal, durante os meses de outubro de 1996 a agosto de 1997, foram feitas 6 coletas bimestrais, através de arrastos de fundo. A partir de subamostras das espécies mais abundantes dentro das capturas, construíram-se distribuições de freqüência de comprimento total, que foram analisadas por período e local de coleta. De onze espécies de Sciaenidae coletadas, a maior contribuição em abundância de exemplares foi feita pelas espécies Stellifer rastrifer, Stellifer naso e Macrodon ancylodon. Determinou-se que a distribuição espacial das espécies no sistema, está relacionada com mudanças periódicas na salinidade dentro do estuário e a sua dinâmica de reprodução. Assim, os juvenis de S. rastrifer, S. naso e M. ancylodon distribuíram-se nas áreas mais internas do estuário e os adultos nas águas costeiras, com maiores teores de salinidade. Enquanto que M. ancylodon apresenta desovas periódicas durante outubro a fevereiro, S. rastrifer e S. naso apresentam desovas parceladas com dois picos mais intensos de outubro a dezembro e durante junho. 2015-05-08T13:21:58Z 2015-05-08T13:21:58Z 2005-06 Artigo de Periódico CAMARGO, Mauricio; ISAAC, Victoria. Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil. Brazilian Journal of Oceanography, São Paulo, v. 53, n. 1-2, p. 13-21, jan./jun. 2005. Disponível em: <http://www.scielo.br/pdf/bjoce/v53n1-2/02.pdf>. Acesso em: 24 abr. 2015. <http://dx.doi.org/10.1590/S1679-87592005000100002>. 1982-436X http://repositorio.ufpa.br/jspui/handle/2011/6628 eng Acesso Aberto application/pdf
institution	Repositório Institucional - Universidade Federal do Pará
collection	RI-UFPA
language	eng
topic	Peixe Distribuição espacial e temporal Sciaenidae Reprodução (Biologia) Estuário do Rio Caeté - PA Pará - Estado Amazônia brasileira
spellingShingle	Peixe Distribuição espacial e temporal Sciaenidae Reprodução (Biologia) Estuário do Rio Caeté - PA Pará - Estado Amazônia brasileira CAMARGO-ZORRO, Mauricio Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
topic_facet	Peixe Distribuição espacial e temporal Sciaenidae Reprodução (Biologia) Estuário do Rio Caeté - PA Pará - Estado Amazônia brasileira
description	This study analyses the spatial and temporal distribution of the dominant Sciaenids in the Caeté estuary on the northern coast of Brazil. Samples were taken by otter trawls in four areas of the Caeté estuary between October 1996 and August 1997 six bimonthly. Stellifer rastrifer, Stellifer naso and Macrododon ancylodon presented the highest biomass out of eleven species of Sciaenidae caught. Minimum and mean length at first maturity were calculated and the main spawning periods determined. Changes in the spatio-temporal distribution of the three species were related to seasonal changes in estuarine salinity and spawning pulses. Larvae and juveniles of S. rastrifer, S. naso and M. ancylodon were found in the inner estuary while larger specimens were more abundant in the outer estuary with higher salinities. M. ancylodon spawned from October to February and rested from April to August whereas S. rastrifer and S. naso spawned throughout the year, though with two peaks, in October-December and June.
format	Artigo
author	CAMARGO-ZORRO, Mauricio
author2	ISAAC, Victoria Judith
author2Str	ISAAC, Victoria Judith
title	Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
title_short	Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
title_full	Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
title_fullStr	Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
title_full_unstemmed	Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil
title_sort	reproductive biology and spatio-temporal distribution of stellifer rastrifer, stellifer naso and macrodon ancylodon (sciaenidae) in the caeté estuary, northern brazil
publishDate	2015
url	http://repositorio.ufpa.br/jspui/handle/2011/6628
_version_	1787148443024621568
score	11.653393

Reproductive biology and spatio-temporal distribution of Stellifer rastrifer, Stellifer naso and Macrodon ancylodon (Sciaenidae) in the Caeté estuary, northern Brazil

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