水产学报2024，Vol.48Issue(10)：84-93,10.DOI:10.11964/jfc.20221013752
中街山列岛海域曼氏无针乌贼的生态位
Niche of cuttlefish(Sepiella japonica)in the Zhongjieshan Islands sea area
摘要
Abstract
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.关键词
曼氏无针乌贼/生态位/种间联结/生境保护/中街山列岛Key words
Sepiella japonica/ecological niche/interspecific association/habitat protection/Zhongjieshan Islands分类
农业科技引用本文复制引用
吴天,梁君,周永东,胡扬杰,徐开达,张亚洲,李雪珽..中街山列岛海域曼氏无针乌贼的生态位[J].水产学报,2024,48(10):84-93,10.基金项目
国家重点研发计划(2023YFD2401905,2020YFD0900804,2019YFD0901205) （2023YFD2401905,2020YFD0900804,2019YFD0901205）
国家自然科学基金(31702346) （31702346）
浙江省重点研发计划项目(2019C02056) National Key R & D Program of China(2023YFD2401905,2020YFD0900804,2019YFD0901205) （2019C02056）
National Natural Science Foundation of China(31702346) （31702346）
Key Research and Development Program of Zhejiang Province(2019C02056) （2019C02056）
