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Supply and larval traits at metamorphosis of a coastal marine invertebrate with a bi-phasic life cycle under contrasting oceanographic conditions ArchiMer
Rey, Felisa; Silva Neto, Gina M.; Bueno-pardo, Juan; Bispo, Regina; Calado, Ricardo.
Patterns of larval supply and larval condition at metamorphosis play key roles in the structure and dynamics of marine populations. Hence, biological and environmental conditions driving the dispersion of larval individuals, shape early life phenotypes, and influence their survival and post-settlement success. We performed a study over two consecutive years at Ria de Aveiro (Portugal), a coastal lagoon influenced by upwelling regimens in the North-eastern Atlantic. This study assessed the effect of contrasting oceanographic conditions on larval supply and larval traits at metamorphosis of the green crab Carcinus maenas. Crab megalopae were daily sampled and monitored in the laboratory until metamorphosis. Environmental conditions experienced by larvae in...
Tipo: Text Palavras-chave: Carcinus maenas; Bi-phasic life cycles; Invertebrate larvae; Phenotypic variations; Time series; Upwelling; East Atlantic; Portugal; Ria de Aveiro.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00514/62599/66957.pdf
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Hydrological characterisation of Ria de Aveiro, Portugal, in early summer ArchiMer
Dias, Jm; Lopes, Jf; Dekeyser, I.
The hydrological features of Ria de Aveiro, a coastal lagoon on the northwest Atlantic coast of Portugal, were investigated in two sampling surveys carried out between 3/6 and 24/6/97 and between 29/6 and 7/7/97, respectively There was a significant freshwater inflow into the lagoon during the first survey, especially in the first days, due to the recent rainfalls. Records concerning water level, salinity, temperature and current velocity were performed at several stations located along the four main channels of the lagoon. The type of tide at the mouth was determined and was observed that astronomical tide is the main forcing agent driving water circulation in Ria de Aveiro. The tide at the mouth is semidiurnal and the tidal wave propagation in the lagoon...
Tipo: Text Palavras-chave: Surélévation; Salinité; Température; Vitesse du courant; Ria de Aveiro; Water level; Salinity; Temperature; Current velocity; Ria de Aveiro.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43597/43928.pdf
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