農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

本研究係自 1991 年 6 月 20 日至 1995 年 4 月23 日止，針對南海陸坡水深 200 至1,100 公尺等深線之陸坡台階進行調查，共計實施 38 網次底拖試驗。使用二因子變方分析檢定不同作業深度與漁區別之單位努力漁獲量結果發現，作業深度別之單位努力漁獲量不具差異性 (p>0.05)，但漁區別則具有顯著差異(p<0.05)。各漁區之單位努力漁獲量以115o30'E–116o30'E，20o05' N–20o55' N 間之每拖網小時 381.4 公斤最高。深度別之單位努力漁獲量，以水深介於 200 至 299 公尺之每拖網小時 257.9 公斤最高。主要蝦類有：東方擬海蝦 9.34%、長帶近對蝦 2.10%、紅蝦類 9.21%、單刺異腕蝦 7.81%、雄壯鬚蝦7.43%、擬肝刺蝦等 16.76%；魚類有：燈籠魚科 5.92%、鱗首方頭鯧 5.66%、白帶魚12.84%、紅目鰱 3.93%、鼠鱈屬 5.04%、鰩屬 13.09%、腔吻鱈屬 11.31%、尖牙鯛 4.28%等。

A total of 38 bottom trawl operations were conducted from 20 June 1991 to 23April 1995 along the continental slope of South China Sea at depths of 200 -1,100 meters. The survey area was stratified into five sub-areas, and thehighest CPUE was 381.4 kg/haul-hour at Sub-area D (115o30' E - 116o40' E, 20o05'N - 20o55' N). For different depth strata, we found that the depth stratum of200 - 299 meters had the highest CPUE with a value of 257.9 kg/haul-hour. Catchof prawns as comprised principally of 16.76% Parahepomadus vaubani, 9.34%Haliporoides sibogae, 9.21% Plesionika spp., 9.18% Acanthephyra armata, and7.89% Heterocarpus woodmassoni. The fishes composition was 13.09% Raja spp.,12.84% Trichiurus lepturus, 11.31% Coelorhynchus spp., 5.92% Mytophidae spp.,5.66% Cubiceps squamiceps, and 5.04% Gadomus spp..