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Colonization and nursery habitat use patterns of larval and juvenile flatfish species in a small temperate estuary
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Orientador(es)
Resumo(s)
Migrations between coastal and estuarine nursery areas are essential for successful completion of the life cycle of several marine fish. The present study evaluates the use of a small temperate estuary, the Mondego, Portugal, as a nursery habitat for several flatfishes during their early life stages. Data from seasonal and diel
larval sampling at the mouth of the estuary and both larvae and juvenile monthly spatial distribution in the estuary (2005–2009) were gathered in order to investigate the life cycle of Platichthys flesus, Solea solea and
Solea senegalensis. Larvae entrance in the estuary occurred mainly during summer and autumn with no evidence for diel or tidal vertical stratification. S. senegalensis larvae were present in all seasons at downstream areas presenting low successful settlement and juveniles' densities inside the estuary. Conversely, P. flesus and
S. solea were mainly present as juveniles with upstream areas being preferred by flounder. Both species larvae seemed to settle in nearby coastal areas. The importance of theMondego estuary for flatfishes differed according to the species, playing an important rolemainly during the first year for all species. The present study highlights the importance of integrating larval and juvenile stages of fish to assess the very important role of estuaries as
nursery areas.
Descrição
Palavras-chave
Early life-cycle Estuarine nursery Platichthys flesus Solea solea Solea senegalensis Mondego estuary
Contexto Educativo
Citação
Azeiteiro, Ulisses [et al.] - Colonization and nursery habitat use patterns of larval and juvenile flatfish species in a small temperate estuary. "Journal of Sea Research" [Em linha]. ISSN 1385-1101. Vol. 76 (2013), p. 126–134