论文部分内容阅读
三疣梭子蟹在黄渤海及长江口是产量最高、个体最大、分布最广、适应能力最强、市场需求量最好的一种梭子蟹。前几年,海捕梭子蟹产量较高,但近几年产量较低,远不能满足市场的需要。虾池养殖梭子蟹也已取得了成功,产量和效益较可观,但仍供不应求。在近几年浅海扇贝养殖连年受灾的情况下,日照市东港区水产局于1999年利用原有扇贝养殖的全套设施,进行了笼养梭子蟹试验,取得成功,梭子蟹个体达到350g以上,并安全越冬,成活率达80%以上。现将试验过程介绍如下:
Portunus trituberculatus in the Yellow Sea and the Bohai Sea and the mouth of the Yangtze River is the highest yield, the largest individual, the most widely distributed, the most adaptable, the best market demand for a shuttle. A few years ago, the catch of the sea catch of crabs higher yields, but lower yields in recent years, far from meeting the needs of the market. Shrimp ponds have also been successful in breeding portunus crab, yield and benefits are more substantial, but still in short supply. In recent years, the shallow sea scallop farming successive years of disaster, the Rizhao City Dongkang Fisheries Bureau in 1999 using the original facilities of the original scallop breeding cage carried a successful test of crabs, the success of the individual crab crab 350g or more, and safe wintering , Survival rate of 80% or more. Now the test process is as follows: