关键词: 鹰爪虾, 数量分布, 生物学, 闽东北外海, Solenocera crassicornis, Quantitative distribution, Biological characteristics, The northeast Fujian outer-sea

Abstract: Abstract: According to the shrimp survey data of four seasonal months in the northeast Fujian outer-sea (26o00′～28o00′N，120o00′～125o30′E) in May，August，November of 2008 and February of 2009，this paper studied and analyzed the quantitative distribution and biology of Trachypenaeus curvirostris. The results showed that the quantitative distribution was obvious different in the seasons and the waters, August were more and the ratio of its catch in total crabs catch was 60.2%, the average density of its resource was 614.5g/h and 144.7ind/h, May were less. The area of high biomass density occurs in the waters at depth of with 60m, the ratio of its catch in total crabs catch was 65.8%, and the average density of its resource was 1119.2g/h and 214.7ind/h; The body length varied between 47 and 120 mm, the dominant were between 60 to 85mm occupying 68.6%; The female was obvious larger than the male with the sex ratio 1:0.42, the average body weight was 6.4g and 3.2g 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 684t.