Ecological and zoological groupings within marine invertebrates in relation to coastal perturbations

摘要

Changes in the structure of sedimentary benthic assemblages in relation to anthr- pogenic perturbations is based on the recognition of ecological groups of different sensiti- vity to pollution. Reaction of these groups, when faced with organic imputs and/or chemical-contaminants, is different from each other. Some of the taxas used in this model are able to live within toxic or anoxic conditions using several adaptation strategies like detoxification or symbiosis with sulfo-reductive bacterias.