Data/hora: 07/06/2024 08:37:21

Provedor de dados: | 27
País: | Belgium
Título: | Les teneurs en composés organochlorés dans les organismes marins de différents niveaux trophiques
Autores: | Vandamme, K.; Maertens, D.
Data: | 1983
Ano: | 1983
Palavras-chave: | Organometallic compounds; Trophic levels.
Resumo: | Polychlorinated biphenyls (PCBs) and some organochlorine pesticides we re measured in some marine organisms of different trophic levels, sampled in the Belgian coastal waters. Because of their persistence and their lipophilic character they accumulate in lipoidal tissues, causing higher organochlorine residue levels in animals with a high adiposity. To compare the residue levels of different organisms lipid based data must be used.The concept of biological magnification controlled by mass transfers of residues through food chains is questioned because predatory fish like cod contained similar or even lower residue levels than organisms of a lower trophic levellike the peacock worm. This supports the concept that the organochlorine levels are controlled by the equilibrium partitioning of the lipophilic pollutants between body lipids and surrounding water. Nevertheless this equilibrium partitioning appeared to be slow so that other factors like sampling period (before or after spawning) could influence the residue level.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Francês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3259
Fonte: | %3Ci%3ELandbouwtijdschrift+36%286%29%3C%2Fi%3E%3A+1677-1682
Fonte: | info:eu-repo/semantics/restrictedAccess