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黄河三角洲地区有数万公顷的海水虾池需要进行品种结构调整,2006年,我们在东营市海洋与水产研究所试验基地的虾池中进行了黑鲷与日本对虾混养试验,仅黑鲷养殖取得了成功,但对虾没有产量,同时黑鲷在捕捞的过程中由于损伤严重,捕捞后暂养1天死亡率超过10%,20天死亡率接近50%。经过分析认为是如下原因所致:一是池塘面积(70亩)过大,导致收捕时黑鲷起捕率低、拉
In the Yellow River Delta there are tens of thousands of hectares of seawater shrimp ponds need to adjust the variety structure. In 2006, we carried out polyculture experiments of black sea bream and Japanese shrimp in shrimp ponds of the test base of the Institute of Marine and Fisheries of Dongying City, The success was achieved but there was no yield on shrimp. At the same time, black seabream was severely damaged in the course of fishing. The 1 day post-harvest mortality exceeded 10% and the 20-day mortality rate was close to 50%. After analysis that is due to the following reasons: First, the pond area (70 acres) is too large, leading to the capture of black snapper arrest rate is low