Spatial and Temporal Variations of Pelagic Copepods in the North Yellow Sea  

作　　者：CHEN Hongju LIU Guangxing ZHU Yanzhong JIANG Qiang 

机构地区：[1]Key Laboratory of Marine Environment and Ecology,Ministry of Education,Ocean University of China [2]College of Environmental Science and Engineering,Ocean University of China [3]State Environmental Protection Key Laboratory of Estuary and Coastal Environment,Chinese Research Academy of Environmental Sciences

出　　处：《Journal of Ocean University of China》2015年第6期1003-1012,共10页中国海洋大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(31101875,41210008)

摘　　要：This study aims to analyze the spatial and temporal variations of the abundance and biodiversity of pelagic copepods and their relationships with the environmental factors in the North Yellow Sea(NYS). These variations were analyzed on the basis of the survey data of the NYS in four seasons from 2006 to 2007. A total of 31 copepod species that belong to 17 genera, 13 families and 4 orders were identified in the four seasons. Of these copepods, the species belonging to Calanoida is the most abundant component. The dominant species include Calanus sinicus, Centropages abdominalis, Paracalanus parvus, Acartia bifilosa, Oithona plumifera, and Corycaeus affinis. C. sinicus is the most important and widely distributed dominant species in all of the seasons. The dominant species have not shown any significant variation for the past 50 years. However, the richness of warm-water species increased. The abundance of copepods significantly varied among different seasons: the average abundance was higher in spring(608.2 ind m^(-3)) and summer(385.1 ind m^(-3)) than in winter(186.5 ind m^(-3)) and autumn(128.0 ind m^(-3)). Factor analyses showed a high correlation between the spatial distributions of dominant copepods and environmental parameters, and Chl-a was the most important factor that influenced the distribution of copepods. This research can provide the fundamental information related to zooplankton, especially pelagic copepods. This research is also beneficial for the long-term monitoring of zooplankton ecology in the NYS.This study aims to analyze the spatial and temporal variations of the abundance and biodiversity of pelagic copepods and their relationships with the environmental factors in the North Yellow Sea (NYS). These variations were analyzed on the basis of the survey data of the NYS in four seasons from 2006 to 2007. A total of 31 copepod species that belong to 17 genera, 13 families and 4 orders were identified in the four seasons. Of these copepods, the species belonging to Calanoida is the most abundant component. The dominant species include Calanus sinicus, Centropages abdominalis, Paracalanus parvus, Acartia bifilosa, Oithona plumifera, and Corycaeus affinis. C. sinicus is the most important and widely distributed dominant species in all of the seasons. The dominant species have not shown any significant variation for the past 50 years. However, the richness of warm-water species increased. The abundance of copepods significantly varied among different seasons: the average abundance was higher in spring (608.2 ind m(-3)) and summer (385.1 ind m(-3)) than in winter (186.5 ind m(-3)) and autumn (128.0 ind m(-3)). Factor analyses showed a high correlation between the spatial distributions of dominant copepods and environmental parameters, and Chl-a was the most important factor that influenced the distribution of copepods. This research can provide the fundamental information related to zooplankton, especially pelagic copepods. This research is also beneficial for the long-term monitoring of zooplankton ecology in the NYS.

关 键 词：copepod species composition ABUNDANCE community structure NORTH YELLOW Sea 

分 类 号：Q958.8[生物学—动物学]