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| Meziane, T; Retiere, C. |
| The comparative effect of the uptake of fresh and degraded detritus of halophytic plants, harvested from salt marches of the Mont Saint-Michel Bay (France), on the growth of a juvenile population of the annelid polychaete N. diversicolor (L.) was studied under experimental conditions in summer 1993. Fresh and degraded detritus of Spartina anglica, Halimione portulacoides and Salicornia europeae, as well as the green algae Enteromorpha sp. were distributed separately to homogenous set of juveniles for a 75 d period. The highest growth rate was obtained for worms fed with Enteromorpha sp. Administration of fresh detritus of a given halophyte species to N. diversicolor juveniles always leads to a significantly higher growth rate than did degraded detritus.... |
| Tipo: Text |
Palavras-chave: Nereis diversicolor; Croissance; Halophytes; Détritus; Nereis diversicolor; Growth; Halophytes; Detritus. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00322/43312/42962.pdf |
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| Richard, Pierre; Blanchard, Gerard; Goulletquer, Philippe. |
| The trophic resources of cultivated mussel have! been characterized and their contribution to the food of these molluscs estimated in the Bay of Aiguillon (France) through the analysis of their natural C and N isotope composition. The contribution of terrestrial organic matter (δ(13)C = -27 to -34 %0) to mussel food resources is around 10% along the year, except in winter (15 10 30 %). A large seasonal variation is observed in the utilization of oceanic phytoplanktoll (δ(13)C = -19 to -21.5 %0) and of littoral benthic productions (microphytobenthos and phanerogame detritus,δ(13)C = -12.0 to -16.7 %0). Overall, the main food source of mussels is formed by benthic productions for molluscs grown on poles, in peculiar in the South of... |
| Tipo: Text |
Palavras-chave: Détritus; Production primaire; Isotope stable; Source trophique; Moule. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/publication-2774.pdf |
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