A review of kuruma prawn Penaeus japonicus stock enhancement in Japan

Hamasaki, Katsuyuki; Kitada, Shuichi

doi:10.1016/j.fishres.2006.03.018

Cited by 57 publications

(63 citation statements)

References 15 publications

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“…Management goals in most fisheries require accurate catch data, abundance estimates, measures of genetic diversity, and estimates of enhancement costs, as well as on a fisherman's willingness to pay and on the monitoring of conflicts (Lorenzen et al, 2010). Release of cultured juveniles would not be effective if there is insufficient nursery habitat to support them (Loneragan et al, 2004;Hamasaki and Kitada, 2006). In our study, the percentage of recaptured prawns did not support the economic feasibility of this type of release operation.…”

Section: Meancontrasting

confidence: 58%

Economic valuation of stock enhancement of banana prawn (Fenneropenaeus merguiensis) in the Strait of Hormuz

Niamaimandi¹,

Zarshenas²

2014

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Abstract-Economic return was estimated for the stock enhancement of banana prawns (Fenneropenaeus merguiensis) released in waters of the Strait of Hormuz along the coast of Hormozgan Province in Iran. Of the 4.7 million juvenile banana prawns that were cultured and released during the period of JuneJuly 2010, 50,000 were marked by injection with red fluorescent elastomer. During the fishing season in November 2010, 11 marked prawns were recovered (a recovery rate of 0.022%).The mean weight of marked prawns at release and recovery was 1.08 g (± standard deviation [SD] 0.1) and 22.06 g (SD 4.9), respectively, representing a growth rate that ranged from 0.88 to 1.41 g weeks −1 . On the basis of the number of prawns released and the recovery rate, the shrimp catch in Hormozgan in 2010 was estimated to be about 1034 released prawns with a mean weight of about 22.80 kg. The production cost for 4.7 million prawns was USD 18,800, and the local market value of landed prawns was USD 3.440 kg −1 . Therefore, the total value of the estimated 1034 landed prawns was USD 77.50, indicating a profit to production ratio of 0.0041. These results, particularly the percentage of recaptured prawns, shows that this type of release operation is not economically feasible.

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Section: Meancontrasting

confidence: 58%

Economic valuation of stock enhancement of banana prawn (Fenneropenaeus merguiensis) in the Strait of Hormuz

Niamaimandi¹,

Zarshenas²

2014

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“…In short, hatchery releases should be dovetailed with other forms of management to provide fishing communities with a robust and resilient suite of measures to create and maintain the desired spawning biomass and obtain optimum yields regularly. Hamasaki and Kitada (2006) review 40 years of stock enhancement of the kuruma prawn (shrimp) Penaeus japonicus in Japan. This substantial, long-term programme, which has released up to ∼300 million juveniles p.a.…”

Section: Stock Enhancement Initiativesmentioning

confidence: 99%

“…In the case of kuruma prawns, decreases in catches were due in large part to degradation of nursery habitats. The analyses by Hamasaki and Kitada (2006) show that despite a marked trend to release larger juveniles, and the development of reliable tagging methods, only 5 of 40 recent releases were economically beneficial due to low recapture rates. They attribute the low survival to the poor quality of nursery habitats.…”

Section: Stock Enhancement Initiativesmentioning

confidence: 99%

Restocking and stock enhancement of coastal fisheries: Potential, problems and progress

et al. 2006

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“…Such a trend is likely due to the small size of the postlarvae (~4 mm TL; Jenkins et al, 2017) and the fact that the diet of fish species changes with increasing body size (Coulson et al, 2015;Lek et al, 2011). If larger M. dalli are produced for release, as has been done for release programs of Penaeus chinensis in China (Wang et al, 2006) and Penaeus japonicus in Japan (Hamasaki and Kitada, 2006), i.e. ~30 mm TL, 1 g wet weight, they are likely to be vulnerable to a different range of predators.…”

Section: Predation On Postlarval Metapenaeus Dallimentioning

confidence: 99%

Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

et al. 2018

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The success of aquaculture-based enhancement programs is greatly influenced by the survival of released individuals. Immediate post-release mortality through predation is one of the greatest obstacles to the success of releases, and the choice of a release site or time-of-release can be critical in maximising survival. This paper develops a novel quantitative method of estimating predation rate to inform release programs, and describes its use in determining whether hatchery-reared Western School Prawns Metapenaeus dalli should be released into the Swan-Canning Estuary in temperate south-western Australia during the night or day. and Atherinomorus vaigiensis (Atherinidae), were responsible for ~99 % of the predation, and that the total number of postlarval prawns consumed was 288 % higher at night than in the day. These findings suggest that releasing M. dalli during the day will greatly reduce predation and consequently allow a greater survival rate at this release site. The simple methodology developed here could be readily employed to inform release strategies for other species.

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A review of kuruma prawn Penaeus japonicus stock enhancement in Japan

Cited by 57 publications

References 15 publications

Economic valuation of stock enhancement of banana prawn (Fenneropenaeus merguiensis) in the Strait of Hormuz

Economic valuation of stock enhancement of banana prawn (Fenneropenaeus merguiensis) in the Strait of Hormuz

Restocking and stock enhancement of coastal fisheries: Potential, problems and progress

Estimating predation rates of restocked individuals: The influence of timing-of-release on metapenaeid survival

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