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	Provedor de dados ArchiMer (3) OMA (1) Autor Bispo, Regina (1) Bueno-pardo, Juan (1) Calado, Ricardo (1) Campillo, Albert (1) Costa Brandao, Manoela (1) Coutteau, P. (1) Freire, Andrea S. (1) Garcia, Carlos A.e (1) Hadley, N.H. (1) Luquet, P. (1) Manzi, J. (1) Regnault, M. (1) Rey, Felisa (1) Silva Neto, Gina M. (1) Sorgeloos, P. (1) Mais... Palavra-chave Invertebrate larvae (4) Bi-phasic life cycles (1) Biochemistry (1) Calliphora (1) Carcinus maenas (1) Clam culture (1) Crangon crangon (1) Diets (1) East Atlantic (1) Feed composition (1) Feeding experiments (1) Food preferences (1) Frontal zones (1) Hatcheries (1) Large-scale variability (1) Larval development (1) Nucleic acids (1) Palaemon serratus (1) Phenotypic variations (1) Physiology (1) Mais... Tipo do documento Text (3) Info:eu-repo/semantics/article (1) Ano 2020 (1) 2019 (1) 1991 (1) 1975 (1) País France (3) Belgium (1) Idioma Inglês (3) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Evolution des acides nucleiques au cours du developpement larvaire de la crevette rose Palaemon serratus (Pennant). ArchiMer Campillo, Albert; Regnault, M.; Luquet, P.. The evolution of nucleic acids in larvae of P. serratus reared in the laboratory from hatching to metamorphosis has been studied. From the 1st larval stage to the post-larval stage, DNA and RNA concn decrease: from 185 to 95 uMoles-bases/g PSD for DNA and from 133.5 to 78.75 uMoles-bases for RNA. The concn decrease is not regular; it is emphasized between stages 4 and 5 on the one hand, and between stage 7 and the post-larva on the other hand. The amount of DNA and RNA per larva increases proportionally to the wet weight from stage 1 to the post-larva. As the weight is multiplied by 7.6, total DNA and total RNA are multiplied by 3.80 and 4.25 respectively. The RNA/DNA ratio has a mean value of 0.77; it increases slightly from stage 1 (0.72) to the... Tipo: Text Palavras-chave: Calliphora; Crangon crangon; Palaemon serratus; Nucleic acids; Larval development; Invertebrate larvae; Biochemistry; Physiology. Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-2023.pdf Meroplankton community structure across oceanographic fronts along the South Brazil Shelf ArchiMer Costa Brandao, Manoela; Garcia, Carlos A.e; Freire, Andrea S.. The influence of oceanographic fronts on the abundance and community composition of invertebrate larvae, mostly of benthic species, along nearly 2000 km of the southwestern Atlantic shelf (21–34°S) was investigated. Meroplankton was sampled through vertical hauls at 89 stations, distributed along 14 cross-shelf transects, during late spring 2010 and early summer 2011. Salinity and temperature were registered with a CTD/rosette system, which provided seawater for chlorophyll-a and nutrient concentrations estimations. Vertical profiles of temperature, salinity, chlorophyll-a and nutrients were used as proxies of the fronts. In addition, high-resolution thermosalinograph data were used to detect surface frontal features. Meroplankton abundance peaks were... Tipo: Text Palavras-chave: Frontal zones; Invertebrate larvae; Water mass; Large-scale variability; Southwestern Atlantic. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00628/74056/75783.pdf 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 Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam <i>Mercenaria mercenaria</i> OMA Coutteau, P.; Hadley, N.H.; Manzi, J.; Sorgeloos, P.. Rearing bivalve molluscs in commercial hatchery and nursery systems has so far relied on the production of live algae, which is costly and often unpredictable. Therefore the development of satisfactory artificial diet would greatly reduce the operating costs of bivalve operations. The development of techniques to improve the nutritional composition and digestibility of yeasts resulted in a product with great potential as a substitute for unicellular algae. Previous work on the Manila clam <i>Tapes semidecussata</i> showed that replacing 80% of the algae by these manipulated yeasts resulted in growth rates of 64 to 93% in comparison with the growth rate obtained for the algal control. In the present study a standard culture test for evaluating... Tipo: Info:eu-repo/semantics/article Palavras-chave: Clam culture; Diets; Feed composition; Feeding experiments; Food preferences; Hatcheries; Invertebrate larvae; Rearing. Ano: 1991 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2809 Registros recuperados: 4 Primeira ... 1 ... Última

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