一、海洋鱼类资源及其利用海洋生物资源是更新资源,能够繁殖生长。但如果不加以合理地开发利用,或由于其他不利因素,破坏了生态平衡,就会使海洋生物资源得不到更新的机会,从而造成重大的甚至是毁灭性的破坏。世界上的鱼类至少达2万余种。其中淡水鱼类8,275种,占41.2%;溯河性鱼类115种,占0.6%;海洋鱼类11,675种,占 First, marine fish resources and their utilization Marine living resources are new resources that can multiply and grow. However, if not rationally exploited or destroyed due to other unfavorable factors, the ecological balance will not be renewed, resulting in major or even devastating damage. There are at least 20,000 species of fish in the world. Among them, 8,275 species of freshwater fish accounted for 41.2%, 115 species of anadromous species accounted for 0.6%, and 11,675 species of marine fish accounted for