• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2011 International Conference on Remote Sensing, Environment and Transportation Engineering >Zooplankton distribution and community structure in Tianwan Offshore Area
【24h】

Zooplankton distribution and community structure in Tianwan Offshore Area

机译：田湾近海区浮游动物分布与群落结构

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Zooplankton spatial distributions and additional environmental features of Tianwan Offshore Area were studied in August 2009 at 14 stations. The abundance, distribution, and diversity of zooplankton were analyzed. copepods, larval stages, and hydromedusae dominated the zooplankton community. At total 72 species of zooplankton with 13 groups were identified. With 20 Zooplankton larvae, 19 Jellyfish, 11 Copepods, 32 other taxa recorded in the investigated area. Zooplankton abundance range was 182–3842ind/m3, mean 1314ind/m3. Mean Shannon diversity index (H′) was 3.321, mean Evenness index was 0.682, mean abundance index was 2.881. The main dominant species are Obelia spp., Acartia pacifica, Centropages dorsispinatus, Penilia avirostris, Echinopluteus larva, Pseudopolydora sp., Calanopia thompsoni, Evadne tergestina. Investigation mainly by the low salinity waters inshore zooplankton composition of ecological groups, small groups of brackish estuaries and wide temperature euryhaline ecological groups, species more abundant. The analysis of correlations showed that there were significant negative correlations between water temperature and zooplankton abundance(r=−0.705) and Number of species of zooplankton (r=−0.664) and no correlation between Water temperature and Diversity index, evenness, richness index. The fluctuations in the zooplankton abundance and community structure were determined by the interactive effects of water temperature. Significant spatial variability in the distribution of zooplankton species, abundance can be ascribed to the virtual presence of a horizontal gradient in water temperature.
机译：2009年8月，在14个站点对田湾近海地区浮游动物的空间分布和其他环境特征进行了研究。分析了浮游动物的数量，分布和多样性。 pe足类，幼体阶段和水杜鹃在浮游动物群落中占主导地位。总共确定了72种浮游动物，分为13组。在调查区域记录了20只浮游生物的幼体，19只水母，11只Co足类和其他32个类群。浮游动物的丰度范围为182–3842ind / m 3 ，平均值为1314ind / m 3 。平均香农多样性指数（H'）为3.321，平均均匀度指数为0.682，平均丰度指数为2.881。主要的优势种有方尖菌属，圆叶螨，圆角Centr，无头青霉，棘皮虫幼虫，假多孢菌属，Calanopia thompsoni，Evadne tergestina。调查主要由低盐度海域浮游动物组成的近海生态群，微咸河口小群和宽泛的淡水生态群，种类较丰富。相关分析表明，水温与浮游动物的丰度之间存在显着的负相关（r = -0.705），浮游动物的物种数量（r = -0.664）之间呈显着负相关，水温与多样性指数，均匀度，丰富度指数之间不存在相关性。浮游动物的丰度和群落结构的波动是由水温的相互作用决定的。浮游动物种类分布中的显着空间变异性，其丰度可归因于水温中水平梯度的虚拟存在。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号