CAJ | 학술논문

根据2008年5月、8月、11月和2009年2月在闽东北外海海域（26°00＇～28°00＇N、120°00＇～125°30＇E）开展的虾类资源调查资料,研究分析了该海域鹰爪虾（Trachypenaeus curvirostris）数量的时空分布及生物学特性。结果表明：闽东北外海鹰爪虾群体数量分布随着季节、海域的不同差异很大。8月群体数量最多,其渔获量占周年渔获量的60.2%,平均密度指数为614.5 g/h和144.7 ind/h;5月群体数量极少。鹰爪虾群体主要分布于近海,水深60 m以内海域的渔获量占周年渔获量65.8%,平均密度指数达1119.2 g/h和214.7 ind/h;水深大于80 m的海域群体数量很少。鹰爪虾体长分布范围为47～120 mm,优势体长组60～85 mm,占68.6%,平均体长为74.1 mm,雌虾与雄虾个体大小差异悬殊,雌虾平均体重为6.4 g,雄虾平均体重仅为3.2 g;雌雄性比差异也很大,为1：0.42;雌性性腺成熟度以Ⅱ期和Ⅲ期为主,分别占44.7%和43.8%;摄食强度中等,以1级为主,占50.9%;调查海区年平均资源量684 t。
근거2008년5월、8월、11월화2009년2월재민동북외해해역（26°00＇～28°00＇N、120°00＇～125°30＇E）개전적하류자원조사자료,연구분석료해해역응조하（Trachypenaeus curvirostris）수량적시공분포급생물학특성。결과표명：민동북외해응조하군체수량분포수착계절、해역적불동차이흔대。8월군체수량최다,기어획량점주년어획량적60.2%,평균밀도지수위614.5 g/h화144.7 ind/h;5월군체수량겁소。응조하군체주요분포우근해,수심60 m이내해역적어획량점주년어획량65.8%,평균밀도지수체1119.2 g/h화214.7 ind/h;수심대우80 m적해역군체수량흔소。응조하체장분포범위위47～120 mm,우세체장조60～85 mm,점68.6%,평균체장위74.1 mm,자하여웅하개체대소차이현수,자하평균체중위6.4 g,웅하평균체중부위3.2 g;자웅성비차이야흔대,위1：0.42;자성성선성숙도이Ⅱ기화Ⅲ기위주,분별점44.7%화43.8%;섭식강도중등,이1급위주,점50.9%;조사해구년평균자원량684 t。
According to the shrimp survey data of four seasonal months in the northeast Fujian outer-sea（26°00′~28°00′N,120°00′~125°30′E） in May,August,November of 2008 and February of 2009,this paper studied and analyzed the quantitative distribution and biological characteristics of Trachypenaeus curvirostris.The results showed that the quantitative distribution was obvious different in the seasons and the waters.The population in August was the most and the ratio of catch in total crabs catch was 60.2%,the average density of resource was 614.5 g/h and 144.7 ind/h,while May was the less.The area of high biomass density occurs in the waters at depth of 60 m,the ratio of its catch in total crabs catch was 65.8%,and the average density of resource were 1119.2 g/h and 214.7 ind/h;the body length varied between 47 and 120 mm,the dominant were between 60 and 85 mm,occupying 68.6%;the female was obvious larger than the male with the sex ratio 1∶ 0.42,the average body weight was 6.4 g and 3.2 g respectively;the mature degree of the female was dominated by Ⅱ and Ⅲ stage,accounting for 44.7% and 43.8%;the feeding intensity was middling;the average resources capacity was 684 t.