Consulta: creatorFacets:"Smith, Rfm"
Registros recuperados: 2
Data/hora: 11/06/2024 13:43:27

Novel observations underlying the fast growth of suspension-feeding shellfish in turbid environments: Mytilus edulis
Provedor de dados: 5
Autores: Hawkins, Ajs; Smith, Rfm; Bayne, Bl; Heral, Maurice.
For the tirst time for any benthic filter-feeder, this study documents each component process of nutrient acquisition through natural tidal variations of food availabillty. The organic content of seston available during both neap and spring tides in the bay of Marennes-Oléron. France, decreased from 28 to 8 % with mcreasing seston concentration from 10 to about 90 mg total particulate mass 1(1). Throughout this tidal variation, the blue mussel Mylilus edulis L. cleared more water of particles as seston availability increased. Rejection of fillered material as pseudofaeces prior to ingestion remained a constant fraction of about 0 .93 x the mass of filtered material, so that ingestion rate showed no signs of stabilising at even the highest food...
Tipo: Text
Palavras-chave: Seston composition; Tidal variation; Mussel; Mytilus edulis; Feeding behaviour; Selection efficiency; Absorption efficiency; Net energy balance.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00040/15080/12419.pdf

Manipulation of dietary conditions for maximal growth in mussels, Mytilus edulis, from the Marennes-Oléron Bay, France
Provedor de dados: 5
Autores: Hawkins, Ajs; Smith, Rfm; Bougrier, Serge; Bayne, Bl; Heral, Maurice.
Results are presented from laboratory-based experiments in which we investigated short-term responses of Mytilus edulis L. to experimental changes in the amount and composition of suspended seston. Working with large quantities of cultured algae, we have studied feeding behaviour over ranges of food availability and quality that ex tend weil beyond earlier limits. Findings confirm the ability of mussels to selectively reject inorganic particles as pseudofaeces prior to ingestion, thereby enriching the organic content of ingested matter by 30% more than the organic content of natural filtered seston. Our findings also establish acclimation both of selective and absorptive processes, indicating that the extent to which growth of M. edulis can be stimulated...
Tipo: Text
Palavras-chave: Mytilus edulis; Comportement alimentaire; Régulation; Croissance.; Mytilus edulis; Feeding behaviour; Regulation; Maximum growth rate.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00015/12604/9482.pdf