论文部分内容阅读
对虾属(Penaeus)种类的个体比较大,经济价值也高,是渔获物重要组成之一。据报道,就世界对虾类资源利用来看,日本海周围利用率最高。对虾属种类的分布范围与地区的表层平均水温范围相一致,夏季水温在20℃或略高于20℃。 根据大西洋和太平洋对虾类资源研究表明,西部比东部海域分布广泛。大西洋分布的种类比较多,对虾属资源最丰富。根据联合国粮农组织世界渔业统计年鉴报道,1981年全世界94个国家经济虾类产量为173.3万吨,比1980年少捕了1000吨。其中印度、中国、印度尼西亚、美国和泰国5个国家的虾类产量占世界产量的一半。另外,从1981年世界各地区的产量
Penaeus shrimp (Penaeus) species of relatively large individuals, high economic value, is one of the important components of catches. According to reports, the use of shrimp resources in the world point of view, the highest utilization rate around the Sea of Japan. The distribution of shrimp species is consistent with the average surface water temperature in the region, with summer temperatures at 20 ° C or slightly above 20 ° C. Based on studies of shrimp resources in the Atlantic and Pacific Oceans, the western part of the country is more widely distributed than the eastern part. Atlantic species are more distributed, shrimp is the most abundant resources. According to the FAO World Fisheries Statistics Yearbook, economic shrimp production in the 94 countries of the world in 1981 was 1,733,000 tons, 1,000 tons less than in 1980. Among them, shrimp production in half of India, China, Indonesia, the United States and Thailand accounts for half of world production. In addition, production from all regions of the world in 1981