Experiments on salinity tolerance of embryos and larvae of the southem bay scallop Argopecten irradians concentricus Say under controlled temperature of 28℃ showed that although the eggs were fertilized and cleaved a...Experiments on salinity tolerance of embryos and larvae of the southem bay scallop Argopecten irradians concentricus Say under controlled temperature of 28℃ showed that although the eggs were fertilized and cleaved at salinity 18.1 -37.4, they could further develop into normal D-shaped larvae only at salinity 23.4-36.1, while the trochophore larvae could develop into normal D-shaped larvae at salinity 22.1 -39.9. For 72 hours , the larvae could tolerate salinity of 18.4-43.9, the salinity favoring growth was 19.8-42.4; the suitable range was 21-36, and the optimum at about 28. They metamorphosed at salinity 18.9-43.5, optimally at 24-32.展开更多
文摘Experiments on salinity tolerance of embryos and larvae of the southem bay scallop Argopecten irradians concentricus Say under controlled temperature of 28℃ showed that although the eggs were fertilized and cleaved at salinity 18.1 -37.4, they could further develop into normal D-shaped larvae only at salinity 23.4-36.1, while the trochophore larvae could develop into normal D-shaped larvae at salinity 22.1 -39.9. For 72 hours , the larvae could tolerate salinity of 18.4-43.9, the salinity favoring growth was 19.8-42.4; the suitable range was 21-36, and the optimum at about 28. They metamorphosed at salinity 18.9-43.5, optimally at 24-32.
