| 浙江披山海域主要鱼类时空生态位 |
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| 引用本文： | 刘坤,俞存根,许永久,江新琴,郑基,于南京,张佩怡,蒋巧丽,牛威震,王慧君. 浙江披山海域主要鱼类时空生态位[J]. 应用生态学报, 2021, 32(3): 1069-1079. DOI: 10.13287/j.1001-9332.202103.033 |
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| 作者姓名： | 刘坤 俞存根 许永久 江新琴 郑基 于南京 张佩怡 蒋巧丽 牛威震 王慧君 |
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| 作者单位： | 浙江海洋大学水产学院, 浙江舟山 316022 |
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| 基金项目： | 国家自然科学基金项目(31270527);玉环县海洋与渔业局委托项目“玉环披山省级海洋特别保护区渔业资源调查与潮间带生物资源调查2015—2017”;浙江省基础公益研究计划项目(LGN19C190010)资助。 |
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| 摘 要： | 依据2015年11月(秋)、2016年2月(冬)、5月(春)、8月(夏)4个航次的渔业资源底拖网调查数据,运用相对重要性指数(IRI)、Shannon指数和Pianka指数对浙江披山海域主要鱼类的时空生态位宽度和重叠进行分析,并结合冗余分析和种间竞争系数研究了主要鱼类间的竞争共存关系及生态位分化.结果 表明:研究期间共...
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| 关 键 词： | 披山海域 生态位宽度 生态位重叠 种间竞争系数 |
| 收稿时间： | 2020-07-06 |
Spatio-temporal niche of major fish species in Pishan waters off Zhejiang Province,China |
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| LIU Kun,YU Cun-gen,XU Yong-jiu,JIANG Xin-qin,ZHENG Ji,YU Nan-jing,ZHANG Pei-yi,JIANG Qiao-li,NIU Wei-zhen,WANG Hui-jun. Spatio-temporal niche of major fish species in Pishan waters off Zhejiang Province,China[J]. The journal of applied ecology, 2021, 32(3): 1069-1079. DOI: 10.13287/j.1001-9332.202103.033 |
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| Authors: | LIU Kun YU Cun-gen XU Yong-jiu JIANG Xin-qin ZHENG Ji YU Nan-jing ZHANG Pei-yi JIANG Qiao-li NIU Wei-zhen WANG Hui-jun |
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| Affiliation: | College of Fisheries, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China |
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| Abstract: | Based on seasonal bottom trawl surveys in November 2015(autumn), February(winter), May(spring) and August(summer) in 2016, the index of relative importance(IRI), Shannon index and Pianka index were used to analyze the breadth and overlap of spatio-temporal niche of major fish species in the Pishan waters off Zhejiang Province. Redundancy analysis and interspecific competition coefficient were used to examine the competition relationship and niche differentiation of those major fish species. The results showed that a total of 61 fish species were recorded throughout the year, which belonged to 13 orders, 29 families and 48 genera. A total of 19 species with IRI>100 were identified as major fish species. The temporal niche overlap value between Chelidonichthys kumu and Atule kalla was largest, indicating high temporal synchronization. Both the spatial niche overlap value and the spatio-temporal niche overlap value between Trpauchen vagina and Cynoglossus interruptus were largest, indicating that their spatial homology was high and that the use of spatial and temporal two-dimensional resource of both species were consistent. The percentage of species pairs with spatio-temporal niche overlap at the significant level(Qik>0.6) was only 5.8% in Pishan waters, indicating that the spatial and temporal distribution of those species were quite different. The overlap of spatio-temporal niche significantly varied across different seasons. The results of the interspecific competition coefficient were basically consistent with the niche overlap. Results of the redundancy analysis revealed the relationships between major fish species and environmental factors(temperature, salinity, dissolved oxygen), and further explained the niche diffe-rentiation among species. |
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| Keywords: | Pishan waters niche breadth niche overlap interspecific competition coefficient |
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