中国水产科学2017，Vol.24Issue(6)：1234-1244,11.DOI:10.3724/SP.J.1118.2017.16368
金乌贼新型产卵附着基的实验研究
The efficacy of new spawning substrates for Sepia esculenta oosperm adhesion
摘要
Abstract
In recent years, Sepia esculenta stock enhancement in Shandong province has been carried out in two ways. One is to release hatchery-reared juvenile S. esculenta. The other is to provide suitable spawning substrates made of salt cedar branches or sweet wormwood branches. The materials for the spawning substrates are cheap, and the substrates are also appropriate for S. esculenta spawning and thus helpful for S. esculenta in situ conser-vation and enhancement. However, the materials can't be reused and are easily damaged on transportation and deployment. Furthermore, successive cuttings of salt cedar and sweet wormwood significantly damage the two terrestrial plant species. Therefore, in order to improve S. esculent stock enhancement and to further expand the stock enhancement scale, identification of environment-friendly spawning substrates has become an important issue. A study on different types of spawning substrates for S. esculenta oosperm adhesion was conducted in an indoor spawning pool. Additionally, the adhesion of S. esculenta oosperms to the spawning substrates was also examined in the field. The results of the indoor experiment showed that the adhesion of the oosperms on salt cedar branches was the best, followed by that on the cruciform spawning substrates, with that on the sea cucumber frame being the worst. The adhesion of oosperms on the white cruciform spawning substrates was significantly better than on the black ones (P<0.05). Attaching salt cedar branches to the cruciform spawning substrates significantly increased oosperm adhesion. In addition, oosperm adhesion on the cruciform spawning substrates, which were placed at the pool bottom, was significantly better than those hung in the upper water (P<0.01). In the field ex-periment, the results showed that oosperm adhesion to the cruciform spawning substrates was good in both 2015 and 2016, with highest oosperm adhesion rates being 82.14% and 56.72%, respectively. Oosperm adhesion was not significantly different between the black and the white cruciform spawning substrates (P>0.05). Oosperm adhesion to cruciform spawning substrates that were hung at the sea bottom was significantly better than on those hung near the sea bottom (P<0.05). The results suggested that, in the spawning season of S. esculenta, resource enhancement and comprehensive protection of the spawning population can be achieved effectively by deploying artificial cru-ciform and collapsible spawning substrates at the sea bottom in its spawning grounds and in the main enhancement and releasing areas of slack water with depths of 15-20 m.关键词
金乌贼/产卵附着基/附卵效果/产卵场修复Key words
Sepia esculenta/spawning substrates/adhesion effects/spawning grounds restoration分类
生物科学引用本文复制引用
牛超,杨超杰,黄玉喜,张秀梅..金乌贼新型产卵附着基的实验研究[J].中国水产科学,2017,24(6):1234-1244,11.基金项目
国家自然科学基金项目(41676153) （41676153）
国家海洋公益性行业科研专项(201405010). （201405010）
