福建海蜇资源变动评析

The analysis of the Variation of Jellyfish Resource in Fujian coastal watecs

分析福建海蜇渔获量的年间变化,揭示海蜇资源衰退的严重性;应用海蜇生活史特点和实验生态学研究结果,剖析了人为和环境因素对海蜇有性和无性繁殖过程各种变态体的损害;经统计分析,探明了人为破坏是海蜇资源衰退的直接原因,并针对性提出人为可控的管理指标,促进海蜇资源的恢复。

In the Pape, based on the previous fishery statistics data of the catch of jellyfish in Fujian and the biology of the jellyfish are investigated in Fujian coastal waters from 1992 to 1995. The cause of yearly variation of the catch are analysed for jellyfish. According to the charactures of life history of jellyfish and experimental ecology data, that the survival of young jellyfish in stages of the growth inflicted from surroundings factors are analysed too. The results show that the resources of jellyfish decline greatly. It is main cause that the resources of jellyfish are destoried by artificial activity . At last, some indexes of managing and recovering jellyfish resources are put forward.