| 基于鱼类完整性指数的瓯江口水域生态系统健康评价 |
| Ecosystem Health Assessment of Oujiang Estuary Using the Fish-based Index of Biotic Integrity (F-IBI) |
| 投稿时间：2022-06-10 修订日期：2022-09-08 |
| DOI：10.15928/j.1674-3075.202206100223 |
| 中文关键词:鱼类完整性指数 健康评价 鱼类群落 瓯江口 |
| 英文关键词:fish integrity index health assessment fish community Oujiang Estuary |
| 基金项目:国家重点研发项目(2020YFD0900805)。 |
| 作者 | 单位 | | 章欣仪 | 温州大学生命与环境科学学院, 浙江 温州 325035；浙江省海洋水产养殖研究所, 浙江 温州 325005；浙江省近岸水域生物资源开发与保护重点实验室, 浙江 温州 325005
| | 刘伟成 | 浙江省海洋水产养殖研究所, 浙江 温州 325005；浙江省近岸水域生物资源开发与保护重点实验室, 浙江 温州 325005
| | 张 川 | 温州大学生命与环境科学学院, 浙江 温州 325035；浙江省海洋水产养殖研究所, 浙江 温州 325005；浙江省近岸水域生物资源开发与保护重点实验室, 浙江 温州 325005
| | 范青松 | 浙江省海洋水产养殖研究所, 浙江 温州 325005；浙江省近岸水域生物资源开发与保护重点实验室, 浙江 温州 325005
| | 叶 深 | 浙江省海洋水产养殖研究所, 浙江 温州 325005；浙江省近岸水域生物资源开发与保护重点实验室, 浙江 温州 325005
| | 郑春芳 | 温州大学生命与环境科学学院, 浙江 温州 325035； |
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| 中文摘要: |
| 评价瓯江口水域生态健康状况，为该水域渔业资源保护和恢复提供科学依据。2021年5月和8月对瓯江口进行渔业资源调查，共采集到鱼类59种，隶属10目23科，较2007年历史资料减少了22种，新增9种。针对瓯江口鱼类种群结构及特征，选取鱼类总种类数、鱼类尾数密度、鱼类重量密度、重量多样性指数、中上层鱼类比例、石首鱼科鱼类比例、暖水性鱼类比例、游泳动物食性鱼类比例、产浮性卵鱼类比例等11个指标构建了瓯江口鱼类完整性指数（F-IBI）评价体系。根据2021年渔业资源调查数据，参考历史资料确定评价标准，评价瓯江口水域健康水平。结果表明，在瓯江口18个采样点中，鱼类完整性健康评价为“较好”的有3个，“一般”的有10个，“较差”的有5个。与2007年相比，瓯江口鱼类生物完整性整体呈下降趋势，过度捕捞、大规模围填海等人类活动可能是造成该现象的重要因素。 |
| 英文摘要: |
| Oujiang Estuary provides excellent fish spawning and foraging due to rich nutrients, and it is an important part of the Wentai fishing ground. However, fishery resources in the Oujiang Estuary have gradually declined in recent years, leading to a decrease in biodiversity. In this study, we constructed a fish-based index of biotic integrity (F-IBI) for evaluating the health of Oujiang Estuary. We aimed to provide a scientific reference to support ecological restoration and conservation of fishery resources in the estuary. F-IBI construction was based on bottom trawl survey data of fish resources at 18 sampling stations in Oujiang estuary in May and August 2021. The biological measurements of the fish samples were recorded, and the community structure was analyzed, using fishery survey data from 2007 as the reference point. Of 20 candidate metrics, 11 metrics were selected, based on fish population structure and characteristics. The F-IBI metrics included: total number of fish species, fish number density, fish weight density, Shannon-Wiener diversity index by weight, and the proportions of pelagic fish species, benthic fish species, pelagic Sciaenidae species, warm water fish species, fish species feeding on benthic animals, fish species feeding on swimming animals, and fish species with floating eggs. The F-IBI value of Oujiang Estuary was calculated using a scale of 1, 3 and 5, and five grades of biological integrity were set according to the F-IBI value. A total of 59 fish species from 23 families and 10 orders were collected in 2021, with 22 species not collected and 9 new species collected compared to the historical data from 2007. Among the 18 sampling stations in Oujiang Estuary, the health status was good at three stations, fair at ten stations, and poor at five stations. Since 2007, the F-IBI in Oujiang Estuary has decreased and is attributed to human activities such as overfishing and large-scale reclamation projects. The F-IBI based evaluation of Oujiang Estuary health was generally consistent with observed river conditions, indicating that the F-IBI method well reflects river health, and will be useful for planning and implementing ecological restoration. |
| 章欣仪,刘伟成,张 川,范青松,叶 深,郑春芳.2024.基于鱼类完整性指数的瓯江口水域生态系统健康评价[J].水生态学杂志,45(6):47-56. |
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