試驗船採集到的活櫻蝦標本 |
Hi MC
Do you think the trawler that trawl sakura ebi at Gueisan fishing ground already or almost hit maximum limit ? based on your earlier stock assessment, and other statistics. so far around 35 vessels trawl sakura ebi at this fishing ground. I noticed that it seems the number of vessels is subject to seafood processor directly, each processor will sign up trawler to trawl this shrimp, based on their sales/export volumn demand. and cash flow, since they have to pay cash to purchase catch. hence also subject to indirect factor: Japanese market demand. I assume the domestic sales channel for this shrimp is very small %.
龜山島附近海域作業的櫻蝦拖網漁船 |
龜山島櫻蝦只有5年歷史,目前是買方市場,不像東港櫻蝦有30年歷史,現在是賣方市場,這是我最擔憂的事。龜山島櫻蝦漁場範圍不大,作業船隻若超過30艘,尤其是白天作業的拖網漁法,一天下3-4網次,撈捕棲息在水深100-200公尺的櫻蝦群,對櫻蝦資源將是種沉重的漁獲壓力。若漁政管理單位(宜蘭縣政府)不積極介入管控資源年捕獲量,水試所又消極被動不進行資源年捕獲量評估研究,任由買方外銷日本需求,操縱產量及作業期延長,短期內(2-3年)還看不到影響,長期(5-10年)下來將會嚴重傷害龜山島櫻蝦資源的品質及永續。
櫻蝦漁場位於龜山島南面水深200公尺處 |
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