| 馮波，顏雲榕，張宇美，易木榮，盧夥勝.南海鳶烏賊（Sthenoteuthis oualaniensis）資源評估的新方法.漁業科學進展，2014,35（4）：1-6 |
| 南海鳶烏賊（Sthenoteuthis oualaniensis）資源評估的新方法 |
| A New Method to Assess the Population ofSthenoteuthis oualaniensisin South China Sea |
| 投稿時間：2013-09-30 修訂日期：2014-02-19 |
| DOI：10.11758/yykxjz.20140401 |
| 中文關鍵字： 鳶烏賊 資源 燈光罩網 光誘模型 南海 |
| 英文關鍵字： Sthenoteuthis oualaniensis Biomass Light falling net Light attractive model South China Sea |
| 基金項目：國家自然科學基金（41376158）、國家科技支撐項目（2012BAD18B01）、廣東省海洋漁業科技推廣專項（A201108H01）、教育部特色專業建設重點專案（527001006）和廣東海洋大學大學生創新實驗項目（1056613038）共同資助 |
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| 摘要點擊次數： 14955 |
| 全文下載次數： 7052 |
| 中文摘要： |
| 為了解南海鳶烏賊（Sthenototeuthis oualaniensis）資源量與分佈狀況，本研究利用建立在燈光罩網船上的北斗星通漁業資訊採集網絡，蒐集南海鳶烏賊生產數據，並根據燈光罩網工作特點，創建了光誘資源量評估模型，使用克裏金插值法，繪制出南海鳶烏賊的分佈密度圖，估計其總資源量和年可捕量。研究結果表明，鳶烏賊在南海有著廣泛的分佈，以110.5°–111.5°E、11°–12°N之間的海域和115.5°–116.5°E、9.5°–11.5°N之間的海域資源密度最高，在4 t/km2以上；以112°–112.5°E、14.5°–15°N之間的海域和113°–115°E、15°–16.5°N之間的海域組織努力量漁獲量（CPUE）最高，達1 kg/（kW•d•km2）以上。根據克裏金插值法估算，在南海108°–118°E、9°–20°N之間的359個漁區，鳶烏賊資源量為204.94萬t，總可捕量為99.40萬t。評估認為，南海鳶烏賊資源開發潛力大，是未來南沙漁業開發的主要種類。 |
| 英文摘要： |
| In this study we evaluated the biomass and distribution of Sthenoteuthis oualaniensis in South China Sea based on the data collected by Bdstar Navigation fishery information collection network that was mounted on the light falling net vessels.Considering the operation process of the light falling vessel，we built a light fishing stock assessment model and introduced a probability function to calculate the sweeping area and the biomass of S. oualaniensis.We then used kriging method to predict the density of S. oualaniensis and the CPUE.We subsequently generated a map of the distribution of S. oualaniensis and estimated the total biomass and the allowable catch.Our analysis showed that S. oualaniensis were widely distributed in South China Sea with high density（4 t/km2）in the area of 110.5°–111.5°E，11°–12°N and 115.5°–116.5°E，9.5°–11.5°N；in the area of 112°–112.5°E，14.5°–15°N and 113°–115°E，15°–16.5°N，the value of CPUE was as high as 1 kg/（kW•d•km2）.The results of Kriging interpolation suggested that in the area of 108°–118°E，9°–20°N there was a biomass of 2.05 million tons and an allowable catch of 994000 tons in 359 fishing areas.The annual allowable catch could be 392000 tons in 105 fishing areas inferred from CPUE.We assessed that there were 630700 tons of S. oualaniensis in the area of Nansha Islands and it could be one of the future target species in the deep-sea fisheries.Here we only provided a crude estimate because all the parameters in our model were obtained by the sample vessels.To make an accurate estimate，further investigation will be needed on fishing vessels and fishing ground.It was found that the enhanced machine and light power did not necessarily increase the fishing efficiency.Although a higher light power could enlarge the illuminated area，davits could not support a larger falling net.Moreover，our model could also be used to assess the light arrangement，practice distance，and cost effectiveness in light fisheries. |
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