| 引用本文: | 崔广法,于业绍,于志华,郑庆树,吉传礼,袁 明,李 平.四角蛤蜊人工育苗的初步研究[J].海洋科学,1985,9(3):36-40. |
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| PRELIMINARY STUDY ON ARTIFICIAL BREEDING OF Mactra quadrangularis |
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| Sexually matured parent clams were put in the dark to drain away the water, then rinsed in running water for some time before being transfered into seawater with amonia for breeding. Breeding rate is about 60.8-80.0%. The development of embryo is faster with rising temperature, but larva grows faster in 17.5-22.7℃. Embryo grow faster at specific gravity 1.020-1.025, but larva in specific gravity 1.010-1.025. Young larvae were fed with "7902" (an unidentified algae) sands were being added before metamorphosis as substratum. Water is changed every day and aerated regularly. It takes 45 days for the fertilized egg to develop into a seeding of 0.2-0.3cm long. |
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