Interactive effects of metal contamination and pathogenic organisms on the introduced marine bivalve Ruditapes philippinarum in European populations.
作者： Ika Paul-Pont , Xavier de Montaudouin , Patrice Gonzalez , Florence Jude , Natalie Raymond
DOI: 10.1016/J.ENVPOL.2010.07.028
关键词:
摘要: In natural environment, marine organisms are concomitantly exposed to pollutants and multiple disease agents resulting in detrimental interactions. The present study evaluated interactive effects of metal contamination (cadmium) pathogenic (trematode parasites Himasthla elongata bacteria Vibrio tapetis) singularly combination on the bivalve Ruditapes philippinarum, an introduced species Europe, under laboratory controlled conditions. After 7 days, bioaccumulation pathogen load were analyzed as well metallothionein (MT) response hemocyte concentrations activities. Results showed that infection by opportunistic pathogens affects accumulation, leading maximal Cd accumulation co-infected clams. Among stressors only V. tapetis induced significant immune parameters whereas a particular interaction "trematode-bacteria" was shown MT responses. Despite low trematode agreement with resistant status R. philippinarum these macroparasites, occurred. Such results highlight necessity taking into account ecotoxicological studies.
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