In order to understand the bioaccumulation of essential metals in filter-feeding mollusks living in soft sediments, the uptake and depuration kinetics of three elements (Co, Mn and Zn) were investigated in the king scallop Pecten maximus exposed via seawater, food, or sediment, using radiotracer techniques. The scallops were collected in April 2005 in the Pertuis Breton, France and acclimated t...

22 23 The bioaccumulation, tissue and subcellular distributions of Ag were investigated in the 24 king scallop Pecten maximus from the Bay of Seine fishery area (France) in laboratory and in 25 field conditions. Experimental investigations with the radiotracer Ag showed that the 26 scallop readily concentrated Ag when exposed via seawater and to a much lower extent when 27 exposed via sediment....

BACKGROUND Crassostrea gigas accumulates paralytic shellfish toxins (PST) associated with red tide species as Gymnodinium catenatum. Previous studies demonstrated bivalves show variable feeding responses to toxic algae at physiological level; recently, only one study has reported biochemical changes in the transcript level of the genes involved in C. gigas stress response. PRINCIPAL FINDINGS ...

Alkyl ethoxysulphates (AES) are anionic surfactants widely used in numerous commercial and industrial applications. In spite of the high AES volume consumption a few data concerning the occurrence, fate and effects of AES in marine environments are reported in literature. The objective of this study is to evaluate the biodegradability and toxicity of AES in pristine sea water. Ultimate biodegra...

The marine alga Isochrysis galbana was grown under the integrated influence of nitrogen starvation and sodium acetate, specifically to understand associated remodelling fatty acid profiles. This is first comparative proteomics study four different set conditions namely nutrient sufficient, with/without acetate N-deficient acetate. A total 546 unique peptides were detected. Due addition 56 prote...

The locally isolated harpacticoid copepods Tigriopus sp. and Tisbe holothuriae were subjected to salinity tolerance experimentation at salinities under above of 40 ppt, presented high halotolerances in LC50 (24 h) 1 ± 4.43 ppt 132 5.35 respectively, 15 2.41 93 3.23 respectively. Tetraselmis suecica, among other microalgal feeds (Asteromonas gracilis, Rhodomonas salina, Dunaliella salina Isochry...