Consulta: subjectFacets:"Suspension feeders"
Registros recuperados: 3
Data/hora: 11/06/2024 10:18:51

Cartographie et évaluation des principaux mollusques filtreurs du Golfe Normano-Breton
Provedor de dados: 5
Autores: Noel, Philippe; Blanchard, Michel; Berthou, Patrick.
During 1993 and 1994, quantitative sampling were realized in Norman Gulf (Western Channel) to estimate molluscs suspension-feeders. Four bivalves are regularly sampled : Spisula ovalis, Tapes rhomboides, Glycymeris glycymeris and Venus verrucosa. For each species, individual age and weight were noticed. The spreading gastropod Crepidula fornicata was also sampled. The resultant biomass and distribution are proposed. These results will contribute to the evaluation of trophic exchanges in boundary layer and to the proposed modeling, in the program PNOC (National Program for Coastal Oceanography). NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: Western Channel; Norman Gulf; Crepidula fornicata; Venus verrucosa; Glycymeris glycymeris; Tapes rhomboides; Spisula ovalis; Suspension feeders; Cartography; Estimation; Manche Ouest; Golfe Normano Breton; Crepidula fornicata; Venus verrucosa; Glycymeris glycymeris; Tapes rhomboïdes; Spisula ovalis; Suspensivores; Cartographie; Evaluation.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/rapport-3856.pdf

Feeding response of the polychaete Sabellaria alveolata (Sabellariidae) to changes in seston concentration
Provedor de dados: 5
Autores: Dubois, Stanislas; Barille, Laurent; Cognie, Bruno.
Sabellaria alveolata is a tube-building gregarious polychaete that constructs large biogenic reefs. In macrotidal shellfish ecosystems, this species competes for food with cultivated suspension-feeders. The suspension-feeding activity and clearance rate of S. alveolata were investigated in response to changes in seston concentration. A flow-through system was designed to study 225 cm(2) reef blocks with more than 500 individuals. The experimental conditions were characterized by increasing concentrations of suspended particulate matter ranging from 6.5 to 153.8 mg L-1, while the organic content of the diet (microalgae Skeletonema costatum) decreased inversely from 49 to 9%, to mimic the dilution of organic matter by inorganic particles, characteristic of...
Tipo: Text
Palavras-chave: Bay of Mont Saint Michel; Tubiculous polychaete; Trophic capacity; Suspension feeders; Reefs; Feeding activity.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6778.pdf

Feeding strategies of co-occurring suspension feeders in an oligotrophic environment
Provedor de dados: 5
Autores: Cresson, Pierre; Ruitton, Sandrine; Harmelin-vivien, Mireille.
Suspension-feeders predominate in the vast majority of the coastal marine benthic ecosystems, with several species co-occurring at low spatial scale. Understanding how these species cope with competition for trophic resources has been the core of numerous studies, mostly in coastal shallow systems where food supplies are diverse and abundant. Oligotrophic systems have received less attention. The aim of the present study was thus to investigate the trophic relationships established between 9 suspension feeders collected in an oligotrophic zone (Bay of Marseille, French Mediterranean). Species displayed similar isotopic ratios, consistently with the use of one main source, identified as nanophytoplankton and diazotrophic bacteria as the δ15N values were...
Tipo: Text
Palavras-chave: Suspension feeders; Isotopic niche; Mediterranean; Oligotrophy; Resource sharing mechanisms.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00301/41203/40363.pdf