Evaluating the impacts of fishing and migratory species in a temperate bay of China using the ecosystem model OSMOSE-JZB

Xing, Lei; Yong, Chen; Boenish, Robert; Tanaka, Kisei R.; Barrier, Nicolas; Ren, Yiping

doi:10.1016/j.fishres.2021.106051

Cited by 4 publications

(3 citation statements)

References 51 publications

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“…F. chinensis biomass reached the peck in August (Figure 3). Large biomass of F. chinensis resulted in a strong food competition with S. schlegelii and J. belangerii juveniles (Xing et al, 2021a). Ecological processes can influence stock enhancements and fisheries (Johnston et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…In this study, we use a published ecosystem model OSMOSE-JZB (Object-oriented Simulator of Marine ecOSystEms) to evaluate the impacts of F. chinensis release in Jiaozhou Bay, China in a dynamic perspective. OSMOSE-JZB can simulate the seasonal variations in Jiaozhou Bay ecosystem (Xing et al, 2017) and inform fisheries management using simulation (Xing et al, 2020a(Xing et al, , 2021a. The objectives of this study are to (1) analyze the economic profit with increasing F. chinensis releases; (2) investigate ecological impacts of F. chinensis release; and (3) evaluate fishing impacts on the F. chinensis release and ecosystem.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Hatchery Program of a Highly Exploited Shrimp Stock (Fenneropenaeus chinensis) in a Temperate Marine Ecosystem

et al. 2022

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Hatchery programs are commonly used to enhance fishery stocks, while the efforts to minimize potential negative ecological impacts have grown in recent years. In China, Fenneropenaeus chinensis is a fast-growing, short-lived shrimp species with a high commercial value. F. chinensis fishery is heavily dependent on the hatchery program. We evaluated the trade-off between economic profits and ecological impacts of F. chinensis hatchery program in the Jiaozhou Bay of China. The total length of released individuals was 1.4 cm. The results showed that artificially released F. chinensis individuals experienced high predation pressure during the first 2 weeks. The economic profit peaked when 198 million individuals were released. The modeled hatchery program yielded a lower proportion of individuals with the increasing amount of F. chinensis release. The temporally uniform hatchery release was more efficient than other hatchery release scenarios (e.g., increasing the released amount year by year) in a long-term hatchery program. F. chinensis had the negative impacts on two large predatory fishes. Large fishes recovered at a slower rate than small fishes after the F. chinensis release stopped. Reducing fishing pressure could offset negative impacts of F. chinensis release on large fishes. The study indicates that the effectiveness of F. chinensis release cannot be enhanced by simply increasing the released amount. A long-term F. chinensis hatchery program with a large released amount may present additional challenges for managing natural resources in an ecosystem context.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluating the Hatchery Program of a Highly Exploited Shrimp Stock (Fenneropenaeus chinensis) in a Temperate Marine Ecosystem

et al. 2022

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“…The impacts of fishing other species on the low-trophic-level mantis shrimp O. oratoria were complex. On the one hand, the proportion of large fishes in fish community would increase with the reduced fishing effort (Xing et al, 2021). The increase of large fish biomass was beneficial to age-0 O. oratoria via influencing small fishes who fed on age-0 O. oratoria (Figure 4A).…”

Section: Discussionmentioning

confidence: 99%

Evaluating Impacts of Trophic Interactions on the Effectiveness of Single-Species Fisheries Management

et al. 2021

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Single-species fisheries management (SSFM) is applied to many fisheries ecosystems around the world. The associated ecological impacts are usually not well understood due to the lack of considering trophic interactions among species in the ecosystem. This impedes the implementation of SSFM in an ecosystem context and reduces our ability to understand the possible ecological impacts of fishing activities. This study focuses on two economically important species in the Jiaozhou Bay, China: the short-lived, fast-growing, and relatively abundant Japanese mantis shrimp (Oratosquilla oratoria) and the long-lived, slow-growing, and less abundant Korean rockfish (Sebastes schlegelii). We evaluated how varying trophic interactions influenced O. oratoria and S. schlegelii (i.e., target-species) who were managed under constant fishing pressure. The increase of fishing pressure to other species (i.e., non-target species) was beneficial to O. oratoria and S. schlegelii. O. oratoria was more sensitive to the decrease of fishing pressure to other species. The predation mortality of age-0 O. oratoria increased with the increased fishing pressure to other species. The predation mortality of age-1 O. oratoria and age-0 S. schlegelii had negative relationships with the fishing pressure to other species. Age-1 S. schlegelii seemed not to be sensitive to the changes in trophic interactions. The predation mortality of O. oratoria and S. schlegelii had bigger changes than the starvation mortality after fishing changed. It suggested the prey-predator relationship had a bigger impact than the food competition. The increase of high-trophic-level fish Johnius belangerii fishery positively impacted O. oratoria, but negatively impacted S. schlegelii. S. schlegelii was more sensitive to the changes of the low-trophic-level fish Pholis fangi fishery. Given the complex dynamics of ecosystems, this study highlights the importance of species-specific responses of fishes to shifting trophic interactions in fisheries management.

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Conventional Fisheries Management and the Need for an Ecosystem Approach

Arreguı́n-Sánchez

2022

Holistic Approach to Ecosystem-Based Fisheries Management

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Evaluating the impacts of fishing and migratory species in a temperate bay of China using the ecosystem model OSMOSE-JZB

Cited by 4 publications

References 51 publications

Evaluating the Hatchery Program of a Highly Exploited Shrimp Stock (Fenneropenaeus chinensis) in a Temperate Marine Ecosystem

Evaluating the Hatchery Program of a Highly Exploited Shrimp Stock (Fenneropenaeus chinensis) in a Temperate Marine Ecosystem

Evaluating Impacts of Trophic Interactions on the Effectiveness of Single-Species Fisheries Management

Conventional Fisheries Management and the Need for an Ecosystem Approach

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