舟山渔场及邻近海域虾蛄类的种类组成和数量分布  

Species composition and quantity profile of mantis shrimp around Zhoushan fishing ground

作　　者：俞存根[1] 陈全震[2] 陈小庆[1] 宁平[1,2] 郑基[1] 

机构地区：[1]浙江海洋学院水产学院,浙江舟山316004 [2]国家海洋局第二海洋研究所,浙江杭州310012

出　　处：《大连海洋大学学报》2011年第2期153-156,共4页Journal of Dalian Ocean University

基　　金：国家自然科学基金资助项目(30970464);浙江省科技厅资助项目(2006C23051);国家海洋局项目(908-01-ST-04)

摘　　要：依据2006年8月（夏）、2007年1月（冬）、5月（春）和11月（秋）在舟山渔场及邻近海域（29°30′-32°00′N,127°E以西）开展海洋生态系统综合调查中所获得的虾蛄类调查资料,用渔获率作为虾蛄类资源分布的数量指标,对舟山渔场及邻近海域的虾蛄类种类组成和数量分布作了分析。结果表明：舟山渔场及邻近海域共有虾蛄类种类11种,隶属3科、7属,其中优势种有口虾蛄Oratosquilla oratoria、脊条褶虾蛄Lophosquilla costata和无刺口虾蛄Oratosquilla inornata,它们在春、夏、秋、冬季的渔获量之和分别占该季节总渔获量的97.54%、98.75%、99.85%、99.35%。不同季节的渔获率变化明显,其变化规律是夏季〉冬季〉秋季〉春季。生物量平面分布结果表明,春、秋季虾蛄类渔获率以长江口渔场和江外渔场相对较高,夏、冬季以舟山渔场为最高。总体来说,虾蛄类数量分布分散,没有十分明显的密集分布。The species composition and amount（expressed by catching rate） of mantis shrimp were evaluated by the data collected in seasonal comprehensive surveys of the marine ecosystem around the Zhoushan Fishing Ground waters（29°30′-32°00′N,127°E） in August,2006 and in January,April,and November,2007.A total of 11 species in 7 genera in 3 families were found with dominant species Oratosquilla oratoria,Lophosquilla costata,and Oratosquilla inornat.The catching of the dominant species accounted for up 97.54% in total catching in summer,98.75% in spring,99.85% in autumn and 99.35% in winter,indicating that the biomass of the mantis shrimp varied with seasons,expressed as summerwinterautumnspring.The higher catch per unit effort（CPUE） was found in the Changjiang estuary fishing ground and the Jiangwai fishing ground in spring and autumn,while the maximal CPUE was observed in the Zhoushan fishing ground in summer and winter.Wholly,the amount of the mantis shrimp was not found just in a few months instead of all year round.

关 键 词：虾蛄类 种类组成 数量分布 舟山渔场及邻近海域 

分 类 号：S932.5[农业科学—渔业资源]