舟山黄大洋海域春秋季虾类种类组成和数量分布

采用2010年5月（眷）、11月（秋）对舟山黄大洋海域开展渔业资源底拖网调查所获得的虾类资料,用渔获率作为虾类资源数量分布的指标,对舟山黄大洋海域的虾类种类组成和数量分布进行了分析研究.结果表明：黄大洋春秋季共鉴定出虾类17种,隶属于9科、13属,优势种为葛氏长臂虾、脊额鞭腕虾、细螯虾和安氏白虾,其中葛氏长臂虾是春秋季的绝对优势种,脊额鞭腕虾、细螯虾是春季的优势种,安氏白虾则是秋季的优势种,根据虾类的生态习性分析得知,分布在本次调查海域的虾类可以分成3种生态类群,但以广温广盐性种类为主.不同季节的虾类渔获量及重量平均渔获率是秋季明显多于春季（秋季虾类平均渔获率为春季的6.4倍）.春季以黄大洋西北部与东南部虾类渔获量相对较高,秋季则是以北部与南部相对较高.

The Species Composition and Distribution Characteristics of Shrimps in Huangdayang of Zhoushan

Adopted in May 2010 （spring）, November （autumn） in huangdayang waters to carry out bottom trawl fishery resources survey data obtained shrimp, shrimp with catch rates as indicators of the distribution of the number of resources, huangdayang waters shrimp species composition and quantity distribution were ana- lyzed. The results showed that： yellow ocean shrimp spring and autumn were identified 17 species belonging to 9 families, 13 genera, the dominant species of shrimp palaemon, spinal amount whip wrist shrimp, crawfish and malocclusion fine white shrimp, which gravieri shrimp is the long arm of the absolute dominant species in spring and autumn, the amount ridge whip wrist shrimp, small crayfish is the dominant species in spring, au- tumn angle shrimp is the dominant species, according to the analysis of the ecological habits that shrimp, locat- ed in the survey waters can be divided into three ecological groups of shrimp, but eurythermic euryhaline species based. Different seasons of the average weight of shrimp catches and catch rates are significantly high- er than the fall in spring（average catch rate of shrimp spring fall 6.4 times）. Spring southeast of the northwestin huangdayang shrimp catches are relatively high, the fall is based on the north and south is relatively high.