Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 5
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Effets de l'apport de phytoplancton (Skeletonema costatum) sur la croissance et les variations de la composition biochimique de la palourde japonaise Ruditapes philippinarum cultivée en marais ArchiMer
Baud, Jean-pierre; Haure, Joel; Garnier, Jacqueline.
A bulk production of phytoplankton (Skelelonema costatum) has been obtained in concrete tanks from saline groundwater. This was used in various concentrations to feed an intensive cultivation of the Manila clam (Ruditapes philippinarum) in ponds. No difference was observed in growth rates of molluscs, with food concentrations between 31 to 126 µg/l Chl a. However, the growth rates obtained from March to November with a food supplement were 1.5 times higher than those observed in the traditional, extensive cultivation. The biomass doubled and the increase in flesh dry weight was 2.5 times higher. The condition index reached a value of 100 in the intensive cultivation. During growth, the proximate composition analysis revealed that the lipid and carbohydrate...
Tipo: Text Palavras-chave: Ruditapes philippinarum; Skeletonema costatum; Elevage intensif; Claire; Croissance; Composition biochimique; Ruditapes philippinarum; Skeletonema costatum; Intensive rearing; Pond; Growth; Biochemical changes.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00039/14980/12307.pdf
Imagem não selecionada

Imprime registro no formato completo
Relation entre la capacité trophique de l'écosystème "claire ostréicole" et la production de l'huître Crassostrea gigas en période d'affinage ArchiMer
Soletchnik, Patrick; Razet, Daniel; Goulletquer, Philippe; Geairon, Philippe; Le Moine, Olivier; Faury, Nicole.
This study presents an environmental survey o foyster ponds in Marennes Oléron Bay (France). Physical and biological parameters were recorded in continuous to study this mesocosm (450 m2 surface). The trophic capacity of the water column was assessed and used as an imput signal in the biological model of Crassostrea gigas. Oyster production in earthen-ponds was compared to the biological model results. Simulation was carried out experimental results to investigate temperature and food effect on energetic budget of Crassostrea gigas during summer and winter
Tipo: Text Palavras-chave: Mesocosm study; Crassostrea gigas; Pond; Oyster rearing; Modèle biologique; Ressource trophique; Affinage; Claires ostréicoles; Crassostrea gigas; Huître.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/acte-3236.pdf
Imagem não selecionada

Imprime registro no formato completo
The use of mechanical aeration and its effects on water mass BJB
SIPAÚBA-TAVARES,L. H.; FREITAS,A. M.; BRAGA,F. M. S..
Due to the increasing use of artificial aerators in fish ponds, and to the lack of studies on this subject, this work studied some of the aspects associated with their use. The influence of a diffuser type aerator (AR 120) on the biotic and abiotic variables was evaluated in a fish pond. Three points of the pond were marked for the taking of samples: 5, 10 and 23 m from the aerator. Samples were taken every day for 15 consecutive days: 5 days before the use of the aerator, 5 days with the aerator functioning and 5 days with it not functioning. The limnological variables studied did not show significant differences (P > 0.05) when the three sampling points were compared, but regarding the use of the aerator, variables such as water temperature,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mechanical aeration; Limnological characteristics; Pond.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100005
Imagem não selecionada

Imprime registro no formato completo
Diet seasonality and food overlap of the fish assemblage in a pantanal pond Neotropical Ichthyology
Novakowski,Gisele Caroline; Hahn,Norma Segatti; Fugi,Rosemara.
We assessed the trophic structure of the fish fauna in Sinhá Mariana pond, Mato Grosso State, from March 2000 to February 2001. The aim was to determine the feeding patterns of the fish species during the rainy and dry seasons. The diets of 26 species (1,294 stomach contents) were determined by the volumetric method. Insects and fish were the most important food resources: insects were the dominant food of 23% and 27% of the species, respectively, in the rainy and dry season, and fish was the dominant item for 31% of the species in both seasons. Cluster analysis (Euclidean Distance) identified seven trophic guilds in the rainy season (detritivores, herbivores, insectivores, lepidophages, omnivores, piscivores and planktivores), and five trophic guilds in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fishes; Feeding overlap; Seasonal analysis; Pond.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400004
Imagem não selecionada

Imprime registro no formato completo
Relation between the sedimentary organic record and the climatic oscilations in the Holocene attested by palynofacies and organic geochemical analyses from a pond of altitude in southern Brazil Anais da ABC (AABC)
GADENS-MARCON,GABRIELLI T.; MENDONÇA-FILHO,JOÃO G.; GUERRA-SOMMER,MARGOT; CARVALHO,MARCELO A.; PIRES,ETIENE F.; HARTMANN,LÉO A..
This paper presents the quantitative and qualitative results obtained from palynofacies and geochemistry analyses carried out on a core covering approximately 8000 years of sedimentation of a pond of altitude located at the mining district of Ametista do Sul, southernmost Brazil. The main objective of this paper is to consider the paleoclimatic and paleoenvironmental significance of these analyses. The hydrological isolation renders this pond climatically sensitive to variations in pluviometric regime and this enabled infer rainfall events during the early Holocene, which was responsible for the beginning of the processes of water accumulation in the gossan and the sedimentation of the pond. Changes in the pattern of moisture over the time become the drier...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Continental environment; Pond; Organic matter; Palynofacies analysis; Total organic carbon; Total sulfur.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301077
Registros recuperados: 5
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional