| influence of biological and ecological factors on the bioaccumulation of polybrominated diphenyl ethers in aquatic food webs from french estuaries. | previous studies have shown the worldwide presence of six congeners of polybrominated diphenyl ethers (pbdes) in marine biota (bde-28, -47, -99, -100, -153 and -154). the objective of the present study was to document their presence, their level and their transfer in the food web of two major estuaries in france, the loire and the seine. pbdes were quantified in eight principal species from the loire, representing primary consumers (the bivalve scrobicularia plana), omnivores (the worm nereis di ... | 2006 | 16764911 |
| is the brown shrimp crangon crangon (l.) population of the vaccarès lagoon (camargue, france, rhône delta) an annual population? | to study the population dynamics of crangon crangon in the vaccarès lagoon in the camargue (rhône delta), the age of brown shrimp was determined using the method of tiews (1954). this method consists in counting the number of segments of the outer branch of the first antenna. this number is correlated with the number of moults already accomplished by the shrimp. the duration of the intermoult depends on water temperature. adapting this model to our environmental data, we determined the age of th ... | 2000 | 11019369 |