极地研究2016，Vol.28Issue(2)：181-193,13.DOI:10.13679/j.jdyj.2016.2.181
2012年夏季西北冰洋浮游动物群落特征
ECOLOGICAL CHARACTERISTICS OF ZOOPLANKTON COMMUNITIES IN THE WESTERN ARCTIC OCEAN IN SUMMER OF 2012
摘要
Abstract
Arctic Ocean sea ice coverage reached a record minimum of 3.41 million km2 in September of 201 2.Zoo-plankton samples collected from 22 stations during summer 201 2 were analyzed to determine the composition and geographic distribution of various Arctic Ocean communities,and to identify relationships to environmental condi-tions.Three geographically distinct communities were identified.The southern Chukchi Sea (CS)community was dominated by barnacle larvae (total abundance 56.6%—79.8%),followed by copepods (1 8.0%—42.2%). The central and northern CS community was dominated by copepods (62.3%—96.8%)followed by barnacle lar-vae (0%—30.9%).The deep-sea community was dominated by copepods (71 .6%—89.8%)and characterized by extremely low abundance.The zooplankton community at Station M06,located at the edge of the CS slope,could not be classified into one of the three communities.Abundance was similar to CS communities but composition was similar to deep-sea communities.Calanus glacialis,Pseudocalanus sp.,Oikopleura vanhoffeni and barnacle larvae were dominant in the two shallow water communities.There were more dominant species in the deep-sea communi-ty,mostly large copepods including Calanus glacialis,Calanus hyperboreus and Metridia longa.Surface tempera-ture and salinity were the most important environmental factors determining the geographical distribution of commu-nities.There was no significant change in community patterns and geographic distribution compared to 2003 results (when sea ice coverage was higher),but total abundance of zooplankton in the CS increased up to 2-fold and total abundance decreased in the deep-sea community with an increase in the percentage of large copepods.关键词
楚科奇海/浮游动物/群落类型/群落结构/优势种/桡足类/藤壶幼体Key words
Chukchi Sea/zooplankton/community pattern/community structure/dominant species/copepods/barnacle larva引用本文复制引用
徐志强,张光涛,孙松..2012年夏季西北冰洋浮游动物群落特征[J].极地研究,2016,28(2):181-193,13.基金项目
国家海洋局“南北极环境综合考察与评估”专项（CHINARE 2011-2015）、海洋公益性行业科研专项（201105022）资助 （）
