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| Arima, Satoshi; Marchand, Michel; M.martin, Jean-louis. |
| Analyses of pollutants, organochlorine residues and heavy metals (Cu, Zn, Mn, Cd, Pb, Hg) were carried out in deep-sea organisms, Asteridea, Holoturioidea, fishes.Heavy metals conlent was determined in sediments. Organochlorine residues were detected in all deep-sea organisms.However, the concentrations observed are similar to those for marine organisms from coastal areas.For heavy metals, high concentrations of mercury, up to 7.5 ppm/dry weight and 6.5 ppm are observed in echinoderms and sediment respectively.High concentrations of lead, up to 167 ppm, occur in the gills of fishes.For other metals, the values observed are roughly similar to those from the literature. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/1979/publication-5268.pdf |
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| M.martin, Jean-louis. |
| Magnesium is, in Cancer irroratus, present in all tissues and organs analysed in our study.This metal is slightly concentrated by the organism.Only the exoskeleton possesses, during the whole intermolt cycle a concentration factor, with regard to sea water, higher than 1.For all tissues and organs, except the exoskeleton, the highest rates are observed during the stages A and B.These high concentrations are the consequence of the strong absorption of sea water by the crab which occurs during the molt and during the stages following the molt.In the whol crab, magnesium of constitution is quantitatively preponderant with regard to magnesium intervening in the osmoregulatory and enzymatic process. In the muscles, the rates of magnesium are low and constant... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-5207.pdf |
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