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The demersal fish assemblage of the coastal area adjacent to the Tagus estuary (Portugal): relationships with environmental conditions ArchiMer
Prista, N; Vasconcelos, Rp; Costa, Mj; Cabral, H.
The subtidal fish assemblage of Tagus estuary coastal area was sampled in order to infer about its relationship to environmental conditions and its possible nursery function for marine species. Fish sampling took place between May 2001 and February 2002 with an otter trawl. In addition to fish sampling, a physical, chemical and biological characterization of the water column and bottom sediment was performed. Density and biomass were determined and ecological and feeding guilds assigned to each fish species. Correspondence analysis (CA) was used to determine the spatio-temporal structure of the assemblage and its correlation to environmental variables. A total of 36 fish species were identified. The fish assemblage was dominated by few species, both in...
Tipo: Text Palavras-chave: Zone côtière; Assemblage de poissons; Structure de la communauté; Environnement; Estuaire du Tage; Coastal area; Fish assemblage; Community structure; Environmental conditions; Tagus estuary.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00321/43245/42974.pdf
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Estuarine colonization, population structure and nursery functioning for 0-group sea bass (Dicentrarchus labrax), flounder (Platichthys flesus) and sole (Solea solea) in a mesotidal temperate estuary ArchiMer
Martinho, F; Leitao, R; Neto, J; Cabral, H; Lagardere, Francoise; Pardal, M.
The function of the Mondego estuary as a fish nursery habitat was investigated from June 2003 to June 2004 by comparing the timing of estuarine colonization with juveniles of sea bass Dicentrarchus labrax, flounder Platichthys flesus, and sole Solea solea, while also analysing their population structure, growth and diet composition. Differences in the onset of estuarine colonization were observed, since sole juveniles were the first to enter the estuary (in January), followed by flounder in April and sea bass in June. The estuarine population of these species consisted of several age-groups, although the majority of individuals belonged to age-groups 0 and 1. The growth rates determined for 0-group fish were within the range of those reported for other...
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Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4062.pdf
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Comparison of Solea solea macroparasites between two nursery-continental shelf systems in the Bay of Biscay and the Portuguese coast ArchiMer
Durieux, Eric; Marques, J.f; Sasal, P; Begout, Marie-laure; Cabral, H.
Digenean metacercariae of 0 year group common sole Solea solea (n = 70) were more abundant in the embayed nursery of the Pertuis Charentais than in the Tagus estuary nursery. Macroparasite assemblages of adult sole (n = 119) displayed only one species in common between the Bay of Biscay and the Portuguese coast continental shelves. These data highlighted the potential use of macroparasites as biological tags in various aspects of common sole ecology. (C) 2007 The Authors.
Tipo: Text Palavras-chave: Sole; Parasites; Juvenile; Ecological stock; Biological tag; Adult.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2639.pdf
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