The impact of EDCs on fish population and biodiversity
EDCs对鱼类种群与生物多样性的影响

Environmental endocrine-disrupting chemicals (EDCs), also known as environmental hormones, has been reported to induce hormone-like disrupting effects to living organisms, including human, for their extensiveness and difficulties in degradation compared to endogenous steroids. Further researches proved that continuous exposure to EDCs can disrupt endogenous hormones metabolic processes, alter gene expressions and even induces gene mutations to the living organisms,such as fish. All of the above can lead to reproductive defects,developmental abnormality, immune function decline,sex-ratio imbalance.So can decrease number of fish offsprings. By reducing the adaptability of inhibiting factors to the environment and destroying the stability of biological net structure, EDCs can widely weaken the biological evolution potential and influence the function of the local ecological system, so can lead to the loss of biodiversity.Therefore, researches on EDCs have become the leading edge of the hot spots up to now, and it is of great significance for the sustainable development of the human society to establish the monitor system for EDC level and degradation in vitro.