Sustainable Management of Taiwan Black Sea Bream Genetic Resource

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Project title

Code/計畫編號

MOST103-2313-B019-010

Translated Name/計畫中文名

台灣黑鯛遺傳資源之永續經營

Project Coordinator/計畫主持人

Jin-Chywan Gwo

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Aquaculture

Website

https://www.grb.gov.tw/search/planDetail?id=8363257

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

31-07-2015

Bugetid/研究經費

1280千元

ResearchField/研究領域

漁業
生物技術(農)

"本研究擬建構台灣重要經濟水產生物之鯛科魚類－黑鯛屬(Acanthopagrus)遺傳資源的保存管理模式，並將以分子標記進行物種、品種鑑定，開發經濟性狀之標記與建立國內外鯛科魚類之遺傳參數，用以評估水產養殖種原管理及人工放流的理論基礎，並視育種或人工放流之需要，提供合適規畫。具體工作為：1、調查國內養殖黑鯛之遺傳多樣性，是否有近親交配、無意識的雜交造成種質衰退、族群過小釀成遺傳漂變等現象；2、物種、品種的鑑定；3、完成人工養殖種苗放流的評估。根據研究對象魚種之生產模式，規劃永續的種苗生產設施，制定實用的種魚遺傳管理規範。" "Stock enhancement has been proposed as a means to increase the depleted fish stocks for decades. Hatchery fish or aquaculture seed had caused considerable genetic change (reduce genetic variability and lower the genetic diversity) in the next generation. Continuous massive releases of hatchery fish or artificial seed have raised concerns about the negative genetic effects on wild populations. The possible genetic effects of releases have become a focal point when evaluating the effectiveness of stock enhancement program recently. Long-term monitoring changes in genetic diversity and tracing the pedigree in aquaculture operations using molecular markers had proved to be a power tool for genetic assessment and was proposed as a routine practice. Black sea bream (Acanthopagrus) is one of the most economical important marine stock enhancement and aquaculture genus in Taiwan. I will identify the species and evaluate the genetic structure (allele frequency, hererozygosities, inbreeding coefficient, effective population size) of natural and hatchery-released fish from different locations using molecular markers. In addition, I will also design to maintain the genetic quality of hatchery population being the same with wild population to minimize the genetic impact to wild population and maximize the success of stock enhancement stocking programs. Risk management within the hatchery before releasing the aquaculture seed into the wild."

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Sustainable Management of Taiwan Black Sea Bream Genetic Resource

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