摘要
三疣梭子蟹(Portunus trituberculatus,以下简称梭子蟹)是莱州湾内重要渔业资源,为恢复其资源量,湾内每年都进行大规模的增殖放流活动,增殖放流管理工作,亟需对梭子蟹生态容量进行深入研究。通过ECOPATH模型分析了莱州湾生态系统结构,并估算了梭子蟹在湾内的生态容量。在不改变生态系统结构以及维持系统稳定性的前提下,梭子蟹的生态容量可达1.107 t.km-2,生物量可达7 412 t,而梭子蟹在湾内的总资源量为3 759 t,说明梭子蟹仍有很大的放流空间。
The swimming crab （Portunus trituberculatus） is an important fishery resource in Laizhou Bay. To restore the resource in the bay, hatchery-reared crab has been released into the bay every year, thus the research on carrying capacity is necessary for the management of stocking enhancement in the bay. The construction of ecosystem and the carrying capacity in Laizhou Bay were analyzed by ECOPATH model. Under the condition of stable ecosystem construction and sustaining the ecosystem, the carrying capacity and biomass of crab was 1. 107 t km-2 and 7 412 t respectively, while the total resource of crab was 3 759 t in the bay, whic indicated that there was huge potential to improve crab stocking enhancement in the bay.
出处
《海洋渔业》
CSCD
北大核心
2013年第3期303-308,共6页
Marine Fisheries
基金
农业部公益性行业专项"黄渤海生物资源调查与养护技术研究"(200903005)
"泰山学者岗位水生动物营养与饲料"共同资助
关键词
三疣梭子蟹
增殖放流
生态容量
ECOPATH模型
莱州湾
Portunus trituberculatus
stocking enhancement
ecological carrying capacity
ECOPATH model
Laizhou Bay
