동죽, Mactra veneriformis의 생존, 호흡 및 기관계 구조에 미치는 구리 (Cu) 의 독성

摘要: This study was conducted to find out the changes of survivorship, respiration and organ structure Mactra veneriformis exposed copper (Cu). Experimental period four weeks. groups were composed one control condition three exposure conditions (0.025, 0.050 0.100 mg/L). The results confirmed that induces reduction survival rate histopathology bivalve. In concentration mg/L, mortality 100% after Cu 3 Respiration observed lower than decline by 75%. Histological analysis system illustrated expansion hemolymph sinus, disappearance epidermal layer degeneration connective tissue mantle. Also, histological degenerations as epithelial necrosis hyperplasia mucous cells are recognized in gill it disruption layer, decrease cell foot. digestive diverticulum, showed atrophy basophilic tubules, increased accumulation lipofuscin increased.