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Effects of starvation on swimming performance and body condition of pre-settlem...
Faria, Ana Margarida da Silva; Chícharo, Alexandra; Gonçalves, EmanuelBody condition in larval fishes is an important determinant of survival in the natural environment. However, few studies correlate body condition with behavioural traits critical for survival, such as swimming performance. In the present study, we compared normally fed larvae of gilthead seabream Sparus aurata Linnaeus, 1758, at various intervals post-hatch with larvae which were starved for 1 to 3 d (for Ucrit...
Influence of starvation on the critical swimming behaviour of the Senegalese so...
Faria, Ana Margarida da Silva; Muha, T.; Morote, E.; Chícharo, AlexandraFood availability can affect larval survival directly through starvation and indirectly through the effects on larval growth rate, swimming performance and vulnerability to predators. In the present study we evaluate the effects of starvation on growth, nutritional condition and swimming behaviour of the Senegalese sole (Solea senegalensis) throughout ontogeny (8 to 14 days after hatching). Biochemical analysis...
Ontogeny of behavioural abilities in temperate reef fish larvae
Faria, Ana Margarida da SilvaTese de dout., Ciências do Mar, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2010 ; A maior parte das espécies associadas a recifes possui uma fase larvar pelágica, seguida de uma fase juvenil e adulta demersal. A fase pelágica pode apresentar consideráveis capacidades de dispersão. A visão tradicional, baseada em estudos de um conjunto limitado de espécies de sistemas temperados, pressupunha q...
How to sample larval fish for taxonomical and ecophysiological studies in shall...
Chícharo, Luís; Faria, Ana Margarida da Silva; Morais, P.; Amaral, A.; Mendes, C.; Chícharo, AlexandraRecruitment predictions for fish are often difficult to make due to the intrinsic variability of species and the incomplete sampling procedures. The aim of this study was to analyse the fish larval catches (abundance, diversity, size and damage) from a standard 500 mm ichthyoplankton net and different light traps (structure, size and light intensity) in temperate coastal turbid waters. Catches from different ge...
The unexpected occurrence of late Sardina pilchardus (Walbaum, 1792) (Osteichth...
Morais, P.; Faria, Ana Margarida da Silva; Chícharo, Alexandra; Chícharo, LuísThe presence of sardine larval stages inside estuaries has generally been regarded as accidental and restricted to the lower part of estuaries. Sampling done with a zooplankton net in the Guadiana estuary corroborated this hypothesis. Late sardine larvae (32.8 ± 2.0 mm) were, however, unexpectedly collected with an otter trawl, 14 km upstream from the mouth of the estuary. Thus, this work intends to: (1) discri...
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