Genetic identification of Chinese shrimp Fenneropenaeus chinensis post-release in Jinzhou Bay: Implications for management of stock enhancement

Liu, Qi; Li, Chengjiu; Li, Weiyuan; Gao, Rui; Liu, Binwei; Liu, Wenlei; Yi, Gaotong; Zhang, Lei; Li, Meiyuan; Su, Jian

doi:10.1016/j.rsma.2022.102425

Cited by 5 publications

(4 citation statements)

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“…For our target species F. chinensis, the wild prawn population had declined for a long time, and the current population was considered an artificial mixture dominated by hatcheryproduced generations (Wang, 2020;Wang et al, 2006). However, recent studies showed that the current population maintained a high level of genetic diversity, despite intensive inbreeding (Liu et al, 2022;Song et al, 2018;Wang et al, 2016). The ecological processes that maintained genetic diversity remained unclear.…”

Section: Effects Of Stock Enhancementmentioning

confidence: 99%

Coupling dynamic energy budget and population dynamic models to inform stock enhancement in fisheries management

et al. 2023

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Extensive applications of fishery stock enhancement worldwide bring up broad concerns about its negative effects, creating a pivotal need for science‐based assessment and planning of enhancement strategies. However, the lack of mechanistic understanding of enhanced population dynamics, particularly the density‐dependent processes, leads to compromise in model development and limits the capacity in predicting enhancement effects. Here, we developed an individual‐based model based on dynamic energy budget theory and full life‐history processes, to understand the mechanism of density dependence in population dynamics that emerge from individual‐level processes. We demonstrated the utility of the model framework by applying it to an extensively enhanced species, Chinese prawn (Fenneropenaeus chinensis, Penaeidae). The model could yield projections reflecting the observed trajectory of population biomass and yields. The model also delineated the key effects of density dependence on the vital rates of growth, fecundity and starvation mortality. Regarding the manifold effects of stock enhancement, we demonstrated a dampened shape in population biomass and yields with increasing magnitude of enhancement, and trade‐offs between the ecological and economic objectives, that is, pursuing high benefit might compromise the wild population without proper management. Furthermore, we illustrated the possibility of combining stock enhancement and harvest regulation in promoting population recovery while maintaining fisheries yields. We highlight the potential of the proposed model for understanding density dependence in enhancement programme, and for designing integrated management strategies. The approach developed herein may serve as a general approach to assess the population dynamics in stock enhancement and inform enhancement management.

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Section: Effects Of Stock Enhancementmentioning

confidence: 99%

Coupling dynamic energy budget and population dynamic models to inform stock enhancement in fisheries management

et al. 2023

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“…It is hypothesized that this is due to the limited number of parents used by the farms during the breeding of seedlings. When these individuals enter the natural environment, gene exchange occurs between them and the wild population, resulting in changes in the genetic structure of the population within the natural environment [56,57]. Therefore, in the future stock enhancement programmes of shrimps, attention should be given to strengthening the control of the seedling breeding process, using sufficient numbers of parents, and optimizing the mating pattern to reduce the impact of inbreeding depression on stock enhancement.…”

Section: Genetic Effects Of Stock Enhancementmentioning

confidence: 99%

“…According to the genetic differentiation index (F st ) analysis, there was significant genetic differentiation among the broodstock population, the released population, and the recaptured population. If the genetic differentiation between released and natural populations is significant, it may lead to changes in the genetic structure of the P. japonicus populations in natural waters, which should be avoided [57]. This may be because a sufficient number of parents from the target waters were not used to breed the shrimp seedlings, which diminished the similarity with the genetic background of the wild populations.…”

Section: Genetic Effects Of Stock Enhancementmentioning

confidence: 99%

Microsatellite-Marker-Based Evaluation of Stock Enhancement for Kuruma Prawn Penaeus japonicus in Beibu Gulf, South China Sea

Zhang,

Zhao,

Shan

et al. 2023

Fishes

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The objectives of this study were to evaluate the effect of stock enhancement on Penaeus japonicus (Bate, 1888) in Beibu Gulf, South China Sea, and to investigate whether stock enhancement has genetically affected the natural population of P. japonicus in the Beibu Gulf waters. Five microsatellite loci were used to identify released individuals among recaptured specimens. In total, 13 of the 487 recaptured individuals were found with their corresponding parents for this release of shrimp seedlings, accounting for 2.67% of the total recaptured P. japonicus. Furthermore, it was determined that the genetic differences among the broodstock, released, and recaptured populations of P. japonicus were small and did not cause significant changes in the genetic structure of P. japonicus in the area. In conclusion, the stock enhancement of P. japonicus in Beibu Gulf had a certain effect on resource restoration, and there is no difference in the genetic characteristics obtained by the microsatellite markers compared to the original population in this area.

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“…SSRs have been used to monitor genetic variation in marine organisms such as Norway Lobster (Nephrops norvegicus) [7], Pacific oyster (Crassostrea gigas) [8], grooved carpet shell clam (Ruditapes decussatus) [9], Nile Tilapia (Oreochromis niloticus) [10], summer flounder (Paralichthys dentatus) [11], and pike-perch (Sander lucioperca) [12]. To date, hundreds of SSRs have been identified and utilized to examine the current status of germplasm resources of wild or hatchery stocks in shrimp species such as Fenneropenaeus chinensis [13], F. indicus [14], Penaeus japonicus [15], P. monodon [16], P. notialis [17], and L. vannamei [18]. Using eight polymorphic microsatellite markers, the genetic diversity and heterozygosity of four successive generations of P. chinensis were estimated and compared by Zhang et al [19].…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Genetic Structure among Four Selected Strains of Whiteleg Shrimp (Litopenaeus vannamei) Using SSR Markers

Zhang,

Lu,

Lin

et al. 2023

Fishes

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The whiteleg shrimp (Litopenaeus vannamei) is one of the most economically important aquaculture species in China. Genetic diversity is crucial for maintaining the gene pool of farmed shrimp. In this study, the effects of artificial selection on the genetic structure of four whiteleg shrimp strains were evaluated using microsatellite sequences. The results showed that the observed heterozygosity (Ho), expected heterozygosity (He), and the polymorphism information content (PIC) of the four selected strains ranged from 0.446 to 0.574, 0.450 to 0.566, and 0.435 to 0.509, respectively. All the selected strains maintained a moderate level of genetic diversity. Most inbreeding coefficients (Fis) in the four strains were positive but not significantly different from zero, indicating a relatively low degree of inbreeding within each strain. However, He and PIC in line 5 showed a decreasing trend from the 2017 to the 2019 generations, and Fis in line 10 showed a significant increasing trend across generations, indicating that measures must be taken to maintain the level of genetic diversity for lines 5 and 10. UPGMA cluster trees showed that the four breeding lines had apparent genetic differences, which could provide a genetic basis for studying crossbreeding between selective lines and the utilization of heterosis. This study will be useful for population genetic research and the breeding strategies of whiteleg shrimp.

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Genetic identification of Chinese shrimp Fenneropenaeus chinensis post-release in Jinzhou Bay: Implications for management of stock enhancement

Cited by 5 publications

References 50 publications

Coupling dynamic energy budget and population dynamic models to inform stock enhancement in fisheries management

Coupling dynamic energy budget and population dynamic models to inform stock enhancement in fisheries management

Microsatellite-Marker-Based Evaluation of Stock Enhancement for Kuruma Prawn Penaeus japonicus in Beibu Gulf, South China Sea

Genetic Diversity and Genetic Structure among Four Selected Strains of Whiteleg Shrimp (Litopenaeus vannamei) Using SSR Markers

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