| 北部湾中华鲎（Tachypleus tridentatus）幼鲎生态位及种间竞争分析 |
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| 引用本文： | 郭清扬,左娅,林吴颖,肖晓波,赵心忆,李银康,应紫薇,周传江,颉晓勇.北部湾中华鲎（Tachypleus tridentatus）幼鲎生态位及种间竞争分析[J].海洋学报,2022,44(10):109-118. |
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| 作者姓名： | 郭清扬 左娅 林吴颖 肖晓波 赵心忆 李银康 应紫薇 周传江 颉晓勇 |
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| 作者单位： | 1.中国水产科学研究院南海水产研究所 广东省渔业生态环境重点实验室，广东 广州 510300 |
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| 基金项目： | 海南省自然科学基金（322MS154)；南方海洋科学与工程广东省实验室（广州）人才团队引进重大专项(GML2019ZD0605)；广东省科技计划(2019B121201001)。 |
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| 摘 要： | 中华鲎（Tachypleus tridentatus）属于国家二级重点保护野生动物，近年来数量锐减已成为濒危物种。该研究基于北部湾沿岸滨海湿地中华鲎种群调查，利用中华鲎幼鲎栖息地主要大型底栖动物资源数据，采用生态位宽度和生态位重叠指数分析探讨中华鲎幼鲎对资源利用情况及其与各物种之间竞争强弱，进一步采用种间联结性探究中华鲎幼鲎与各物种竞争情况。结果表明:（1）中华鲎幼鲎在底栖群落中属于广生态位物种，其生态位宽度最大（4.252 2）；（2）中华鲎幼鲎与各底栖生物均有一定程度生态位重叠，其中与短指和尚蟹（Mictyris brevidactylus）生态位重叠高达0.837 5；（3）中华鲎幼鲎与短指和尚蟹种群动态模拟结果显示，二者种群规模在西背岭和三娘湾地区呈此消彼长状态，自然补充量减少是限制种群增长的重要因素。生态位分析表明，中华鲎幼鲎可作为滨海湿地生态系统健康程度指示物种，建议以中华鲎为旗舰物种开展滨海湿地生物多样性保护和管理宣传。
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| 关 键 词： | 中华鲎 生态位 种间联结 滨海湿地 生境保护 |
| 收稿时间： | 2022-02-03 |
Niche and interspecific association of juvenile Tachypleus tridentatus in the Beibu Gulf |
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| Abstract: | Tachypleus tridentatus has been upgraded to the State Key Protection Wildlife GradeⅡ in China in 2021. The population of T. tridentatus decreased sharply in recent years. T. tridentatus has become an endangered species. Based on the investigation of coastal wetlands along the Beibu Gulf coast, the resource data of major benthic species of each habitat is added, and niche width and niche overlap index analysis are used to explore the resource utilization of juvenile T. tridentatus and inter-species competition in this study, so as to further explore the competition between juvenile T. tridentatus and various species by using interspecific connectivity. The results show that: (1) juvenile T. tridentatus belongs to a wide niche species in the benthic community, and its niche width is the largest (4.252 2); (2) the niches of juvenile T. tridentatus and various benthos are ecologically partitioned with partial overlap, among which the niche overlap with Mictyris brevidactylus is as high as 0.8375; (3) the population dynamics simulation result of juvenile T. tridentatus and Mictyris brevidactylus shows that the population size displays an opposite trend between the two species in Xibeiling area and Sanniangwan area, and the reduction of natural supplement is an important factor that limits the population growth. The research shows that the juvenile T. tridentatus can be used as the indicator species to characterize the health of coastal wetland ecosystem. It is suggested to take juvenile T. tridentatus as the flagship species to carry out biodiversity conservation, management and publicity in coastal wetland. |
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