發(fā)布時間：2018-04-03 06:19

  本文選題：海洋牧場　切入點：漁業(yè)資源　出處：《水產(chǎn)學報》2015年08期

【摘要】：為掌握南海柘林灣—南澳島海洋牧場水域漁業(yè)資源本底情況,于2011年4月到2012年2月,使用Simrad EY60科學探魚儀先后于不同月份對其進行了4次調(diào)查。調(diào)查顯示2011年4月,21種評估魚類總平均數(shù)量密度和平均資源量密度分別為2.68×104個/km2和0.73 t/km2;2011年8月,38種評估魚類總平均資源數(shù)量密度和平均資源量密度分別為6.49×104個/km2和0.71 t/km2;2011年11月,33種評估魚類總平均資源數(shù)量密度和平均資源量密度分別為4.14×104個/km2和0.93 t/km2;2012年2月,15種評估魚類總平均資源數(shù)量密度和平均資源量密度分別為1.45×104個/km2和0.36 t/km2。結果表明,4個月資源量密度均不高;11月資源密度和資源量最高;2月資源密度和資源量最低,聲學評估種類明顯減少。4月積分值主要分布于4~8 m水層;8月積分值于4~14 m水層內(nèi)分布比較均勻;11月積分值主要分布水層與4月相似,但10 m以深水體所占百分比高于4月;2月積分值主要分布于4~10 m水層,尤其是6~8 m水層。資源密度與水深之間無明顯線性關系。各月份調(diào)查站點資源密度與SST無明顯線性關系。各月份平均豐度密度與SST呈明顯線性關系(R2=0.997 4)。各月份平均資源量密度與SST呈一定線性關系(R2=0.287 2)。研究證實聲學方法在海洋牧場漁業(yè)資源評估過程中表現(xiàn)出良好的效果,推動了聲學技術在海洋牧場漁業(yè)資源研究領域的發(fā)展,為今后我國深入開展海洋牧場漁業(yè)資源增殖效果評估研究提供了現(xiàn)實基礎和科學依據(jù)。
[Abstract]:In order to understand the background of fishery resources in the waters of Zhelin Wan-Nanao Island in the South China Sea, from April 2011 to February 2012, Simrad EY60 Scientific Fish Prospecting instrument was used to investigate the fish resources in different months.The survey showed that the total average quantitative density and average resource density of 21 evaluated fishes in April 2011 were 2.68 脳 104 / km2 and 0.73 t / km2, respectively; in August 2011, the total average quantitative density and average resource density of 38 evaluated fishes were 6.49 脳 104 / km2, respectively.And 0.71 t / km2; in November 2011, the total average resource density and average resource density of 33 species evaluated were 4.14 脳 104 / km ~ 2 and 0.93 t / km ~ (2), respectively; in February 2012, the total average resource density and average resource density of 15 species were 1.45 脳 104 / km ~ (2) and 0.36 t / km ~ (2), respectively.The results showed that the resource density was not high in 4 months, the highest in November and the lowest in February.The types of acoustics assessment are obviously reduced. The integral value in April is mainly distributed in 4m water layer, the integral value in August is more uniform in water layer (4m), and the integral value in November is mainly distributed in water layer similar to that in April.However, the percentage of deep water in 10 m is higher than that in April, and the integral value in February is mainly distributed in 4 ~ 10 m water layer, especially in 6 ~ 8 m water layer.There is no obvious linear relationship between resource density and water depth.There was no significant linear relationship between resource density and SST in each month.The average abundance density of each month was linear with SST.There was a linear relationship between the average resource density and SST in each month.The results show that the acoustic method has a good effect on the assessment of fishery resources in marine rangelands, which promotes the development of acoustic technology in the field of fishery resources research in marine rangelands.It provides a realistic basis and scientific basis for further research on the evaluation of the effect of fishery resources proliferation in marine rangeland in China in the future.
【作者單位】： 中國水產(chǎn)科學研究院南海水產(chǎn)研究所;中國水產(chǎn)科學研究院南海水產(chǎn)研究所農(nóng)業(yè)部南海漁業(yè)資源環(huán)境科學觀測實驗站;中國水產(chǎn)科學研究院海洋牧場技術重點實驗室中國水產(chǎn)科學研究院南海水產(chǎn)研究所;大連海洋大學海洋科技與環(huán)境學院;
【基金】：公益性行業(yè)(農(nóng)業(yè))科研專項(201003068) 國家科技支撐計劃(2012BAD18B02) 國家財政專項“南海海洋捕撈信息動態(tài)采集網(wǎng)絡”(2009-2015)
【分類號】：S932.4

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本文編號：1703976