Genetic adaptation to heavy metals in aquatic organisms: a review.

摘要: Natural populations in polluted areas are possibly subjected to selective pressures for an increased resistance toxicants. This can result the evolution of resistance, which may have important implications decisions regarding safe ambient toxicant levels. By reviewing heavy metals aquatic organisms, we aimed determine if all negatively affected by toxicants do adapt them. If published literature accurately represents situation (i.e. negative results having equal chance being published), it be concluded that most, but not all, resistance. But usually determined such has a genetic basis. There is less evidence metazoans (especially fish) than micro-organisms. Additional information strongly indicates many fail survive environments. It thus seems dangerous relax water quality criteria on assumption environments will evolve fact environmental pollutants does seem occur some warrants taking possibility into consideration when evaluating bioassays and monitoring programs.