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热带海洋学报

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阳江海上风电场内外海域秋季鱼类碳氮稳定同位素初探

党莹超1,2,3, 姜伟1,2,3*, 赵志刚1,4, 冯灵灵1,4, 李莎1,2,3, 李博1,2,3   

  1. 1. 中国长江三峡集团有限公司, 湖北 武汉430000;

    2. 长江经济带生态环境国家工程研究中心, 湖北 武汉430014;

    3. 三峡工程鱼类资源保护湖北省重点实验室, 湖北 宜昌 443100;

    4. 三峡新能源阳江发电有限公司, 广东 阳江529500



  • 收稿日期:2026-01-19 修回日期:2026-03-30 接受日期:2026-04-08
  • 通讯作者: 姜伟
  • 基金资助:
    中国长江三峡集团有限公司自主科研项目(NBZZ202400117)

A preliminary study on carbon and nitrogen stable isotopes of fish species in the inner and outer waters of Yangjiang offshore wind farm in autumn

DANG Yingchao1,2,3, JIANG Wei1,2,3*, ZHAO Zhigang1,4, FENG Lingling1,4, LI Sha1,2,3, LI Bo1,2,3   

  1. 1. China Three Gorges Corporation, Wuhan, Hubei 430000, China;

    2. National Engineering Center of Eco-Environments in Pan-Yangtze Basin, Wuhan, Hubei 430014, China;

    3. Hubei Key Laboratory of Three Gorges Project for Fish Resource Conservation, Yichang, Hubei 443100, China;

    4. Three Gorges New Energy Yangjiang Power Co. , Ltd. , Yangjiang, Guodong 529500, China



  • Received:2026-01-19 Revised:2026-03-30 Accepted:2026-04-08
  • Supported by:
    The Independent Research Program of China Three Gorges Corporation(NBZZ202400117)

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摘要： 为了解阳江近海风电场内、外海域主要鱼类的营养结构特征，本研究于2024年秋季在阳江沙扒海上风电场海域和外部海陵岛附近海域进行了鱼类拖网调查，对采集的鱼类样品进行碳、氮稳定同位素比值（δ13C和δ15N）测定，并以此计算其营养级，分析了风电场内、外主要鱼类的营养结构差异。研究结果表明，本次调查共采集到鱼类74种，隶属11目44科65属，其中风电场内部海域鱼类58种，风电场外部海域鱼类38种，共有鱼类22种。海风电场内部海域鱼类的δ13C介于-23.81‰~-15.36‰，均值为（-17.61±1.66）‰；δ15N介于9.51‰~16.08‰，均值为（12.87±1.31）‰。风电场外部海域鱼类的δ13C介于-21.95‰~-15.29‰，均值为（-17.65±1.54）‰；δ15N介于10.63‰~15.12‰，均值为（12.60±1.07）‰。风电场内部海域鱼类的δ13C差值高于风电场外部，表明风电场海域鱼类食物来源更广。风电场内部海域和风电场外部鱼类营养级范围分别为2.27~4.10 和2.50~3.82，鱼类均以中、低级肉食性鱼类为主。风电场内部海域鱼类营养级平均值比外部海域高2.9%，其8个营养生态位指标（NR、CR、TA、CD、SEA、SEAc、MNND和SDNND）均高于外部海域，表明内部海域鱼类具有更大的营养级跨度及核心营养生态位，资源利用的多样性和广度更高，鱼类营养结构的稳定性更高‌。本研究初步建立了阳江近海风电场内、外海域主要鱼类的营养结构，为了解海上风电场对鱼类营养结构的影响提供了基础资料，也可为阳江近海渔业资源的保护和可持续管理提供理论基础。

关键词: 碳氮稳定同位素, 鱼类, 营养结构, 海上风电场

Abstract: To investigate the trophic structure characteristics of the main fish species in the inner and outer waters of the Yangjiang offshore wind farm, a fish trawl survey was conducted in the offshore wind farm (OWF) of Yangjiang Shapa and the surrounding waters of Hailing Island in the autumn of 2024. The carbon and nitrogen stable isotope ratios (δ13C and δ15N) of the collected fish samples were measured, and their trophic levels were calculated based on this. The trophic structure differences of the main fish species in the inner and outer areas of the wind farm were analyzed. The results show a total of 74 species of fish were collected in this survey, belonging to 11 orders, 44 families and 65 genera. Among them, the fish species in the inner and outer waters of the OWF were 58 species and 38 species respectively, and the common fish species were 22 species.The δ13Cand δ15N values of fish from the OWF ranged from -23.81‰ to -15.36‰ and 9.51‰ to 16.08‰, with an average value of (-17.61±1.66)‰ and (12.87±1.31)‰, respectively.The δ13Cand δ15N values of fish from outer waters of the OWF ranged from -21.95‰ to -15.29‰ and 10.63‰ to 15.12‰, with an average value of (-17.65±1.54)‰ and (12.60±1.07)‰, respectively. The δ13C difference of fish in the OWF is higher than outer waters, indicating that the food sources of the fish in the OWF are more diverse. The trophic levels of fish from the OWF and the outer waters of the OWF were (2.27-4.10 ) and (2.50-3.82), respectively. The fish were dominated by carnivorous fish at medium and low trophic levels. The average trophic level of fish in the OWF is 2.9% higher than outer waters. The eight trophic ecological position indicators (NR, CR, TA, CD, SEA, SEAc, MNND and SDNND) are all higher than outer waters, indicating that the fish in the waters of OWF have a larger trophic level range and a more central trophic ecological position, with greater diversity and breadth in resource utilization, and a higher stability in the trophic structure of fish. However, the stability of the trophic structure of the fish community in the waters of OWF may be weaker than that outer waters. This study initially established the trophic structure of the main fish species in both the inner and outer waters of the Yangjiang offshore wind farm. It provides basic data for understanding the impact of OWF on the trophic structure of fish, and also can offer theoretical basis for the protection and sustainable management of the marine fishery resources in the waters of the Yangjiang.

Key words: carbon and nitrogen stable isotopes, fish, trophic structure, offshore wind farm（OWF）