Studies on the effect evaluation of stock enhancement and mating strategy of Sepia esculenta based on release-Recapture survey
文献类型： 外文期刊
作者： Shan, Binbin 1 ; Song, Na 3 ; Zhang, Xiumei 4 ; Gao, Tianxiang 4 ;
作者机构： 1.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Marine Ranching, Guangzhou 510300, Peoples R China
3.Ocean Univ China, Fishery Coll, Qingdao 266003, Peoples R China
4.Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Peoples R China
关键词： Sepia esculenta; Microsatellite marker; Stock enhancement; Effective population size; Recaptured rate
期刊名称：REGIONAL STUDIES IN MARINE SCIENCE （ 影响因子：2.1； 五年影响因子：2.1 ）
ISSN： 2352-4855
年卷期： 2023 年 59 卷
页码：
收录情况： SCI
摘要： The golden cuttlefish, Sepia esculenta Hoyle, 1885, is an economically important cephalopod, and its resources have declined significantly due to overfishing and habitat destruction. In order to recover the natural resources, stock enhancement of golden cuttlefish has been conducted for a few years in Shandong Province, China. However, little information has been reported concerning the effectiveness and genetic effect of the massive releases. In the present study, microsatellite markers were employed to trace the whole process of S. esculenta stock enhancement in Qingdao at 2016. Furthermore, the pedigree of hatchery populations (broodstock and offsprings) was traced to detect the mating behaviors of S. esculenta. In summary, the high genetic diversity and similar genetic variability with wild population were detected, and the effective population sizes (Ne) of broodstock, offspring and wild populations were high. Only 3 individuals were identified from 372 captured samples, accounting for 0.806%. We speculated small number of marked individuals may be the key factor for low recapture rate. Furthermore, we found a male broodstock mated with two female parents, this indicated complicated promiscuity behavior of S. esculenta.(c) 2022 Elsevier B.V. All rights reserved.
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