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中街山列岛海域曼氏无针乌贼的生态位

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
为了探究曼氏无针乌贼在生态系统中的生态位，实验根据2020-2021年中街山列岛海域春季(4月)和秋季(10月)共4个航次的渔业资源调查数据，运用生态位宽度、生态位重叠及联结系数(AC)等方法，分析了中街山列岛海域曼氏无针乌贼与主要游泳动物的生态位与种间关系。结果显示，春季主要游泳动物共21种，秋季共14种，不同季节曼氏无针乌贼的生态位宽度差异较大，春季曼氏无针乌贼属于广生态位，秋季属于中生态位。春季曼氏无针乌贼与主要游泳动物的生态位重叠程度较低，Oik≥0。5的种对仅占总数的14。29％。秋季曼氏无针乌贼与主要游泳动物的生态位重叠程度较高，Oik≥0。5的种对占总数的50％。AC分析显示，曼氏无针乌贼与主要游泳动物种间联结呈正联结(AC≥0)的种对所占比重较大，其中，春季21个种对中，19。05％的种对具有显著正联结。秋季14个种对中，35。71％的种对具有显著正联结。研究表明，不同生活史阶段曼氏无针乌贼的资源利用能力、环境适应能力和主要游泳动物种间联结度均有所不同。本研究基于生态位视角进一步探究曼氏无针乌贼资源衰退机制，可为曼氏无针乌贼栖息地保护和修复提供生态学基础理论依据。
Niche of cuttlefish(Sepiella japonica)in the Zhongjieshan Islands sea area
The niche and interspecific relationships between Sepiella japonica and major nekton in the waters of the Zhongjieshan Islands were analyzed by niche breadth,niche overlap and association coefficient(AC)to explore the niche of S.japonica in the ecosystem,according to the survey data of fishery resources in the Zhongjieshan Islands sea area of four voyages in spring(April)and autumn(October)from 2020 to 2021.The res-ults showed that 21 major nektons in spring and 14 in autumn.The niche breadth values of S.japonica in different seasons were quite different.S.japonica belonged to a wide niche in spring and a middle niche in autumn.In spring,the niche overlap between S.japonica and major nekton was low.The species pairs with Oik≥0.5 accoun-ted for only 14.29％of the total.In autumn,the niche overlap between S.japonica and major nekton was high.The species pairs with Oik≥0.5 accounted for 50％of the total.AC analysis showed that the proportion of species pairs with positive interspecific association(AC≥0)between S.japonica and major nekton species was higher,among them,19.05％of the 21 species pairs in spring had significant positive associations.A total of 14 species pairs in autumn,35.71％had significantly positive associations.Research showed that the resource utilization ability,environmental adaptability and interspecific association of major nekton species were different in different life his-tory stages of S.japonica.Based on the niche perspective,the resource decline mechanism of S.japonica was fur-ther explored,which could provide ecological basis for the protection and restoration of S.japonica habitat.

Sepiella japonicaecological nicheinterspecific associationhabitat protectionZhongjieshan Islands

吴天、梁君、周永东、胡扬杰、徐开达、张亚洲、李雪珽

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浙江海洋大学海洋与渔业研究所,浙江省海洋水产研究所,浙江舟山 316021

浙江省海洋渔业资源可持续利用技术研究重点实验室,农业农村部重点渔场渔业资源科学观测实验站,浙江舟山 316021

曼氏无针乌贼 生态位 种间联结 生境保护 中街山列岛

国家重点研发计划国家重点研发计划国家重点研发计划国家自然科学基金浙江省重点研发计划项目

2023YFD24019052020YFD09008042019YFD0901205317023462019C02056

2024

10.11964/jfc.20221013752

水产学报
中国水产学会

水产学报

CSTPCD北大核心
影响因子：1.148
ISSN：1000-0615
年,卷(期)：2024.48(10)