Abundance and diversity of reef fish species and their relationship with corals along the eastern coast of Sri Lanka

IF 1.7 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Journal of Coastal Conservation Pub Date : 2024-02-09 DOI:10.1007/s11852-024-01040-7

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Abstract

Reef fish perform multiple ecological roles that are important for maintaining the structure and function of coral reefs. Reef fish assemblage patterns can be affected by natural and anthropogenic disruptions that change the structure of coral reef ecosystems. Our study aimed to understand the reef fish abundance, diversity, and relationships between reef fish families and coral families at five major coral reef ecosystems on the Eastern coast of Sri Lanka. In total, 272 reef fish species and 101 coral species were recorded. The highest and lowest relative abundance of fish was recorded at the Kayankerni (KR) and Adukkuparu reefs (AR) respectively. Pigeon Island Reef (PIR) had the highest fish diversity, evenness, and species richness followed by Parrot Rock Reef (PRR). Passikudah Reef (PR) had the lowest fish diversity indices and richness, but KR had the lowest fish evenness. In contrast, PRR had the uppermost percentage of live coral cover, coral diversity, evenness, and species richness. Coral species richness and live coral cover were lowest at the PR and AR respectively. The evenness of coral was lowest at PIR and the lowest Shannon-Weiner diversity was recorded at the AR. Reef fish family Lutjanidae and coral families Dendrophyllidae, Alcyoniidae, Plumulariidae, Mussidae, and Poritidae had a strong positive relationship. Coral family Acroporidae had a moderately positive relationship with fish families Pomacentridae and Pomoacanthidae. Overall, our results provide a comprehensive outlook of coral reef, reef fish diversity, and their relationship along the eastern coast of Sri Lanka.

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斯里兰卡东海岸珊瑚礁鱼类物种的丰度和多样性及其与珊瑚的关系

摘要珊瑚礁鱼类发挥着多种生态作用，对维持珊瑚礁的结构和功能非常重要。珊瑚礁鱼类的组合模式会受到自然和人为干扰的影响，从而改变珊瑚礁生态系统的结构。我们的研究旨在了解斯里兰卡东海岸五个主要珊瑚礁生态系统中珊瑚礁鱼类的丰度、多样性以及珊瑚礁鱼科与珊瑚科之间的关系。共记录了 272 种珊瑚礁鱼类和 101 种珊瑚。卡扬克尼（KR）和阿杜库帕鲁（AR）珊瑚礁的鱼类相对丰度分别最高和最低。鸽子岛礁（PIR）的鱼类多样性、均匀度和物种丰富度最高，其次是鹦鹉岩礁（PRR）。帕西库达礁（PR）的鱼类多样性指数和物种丰富度最低，但 KR 的鱼类均匀度最低。相比之下，鹦鹉岩礁的活珊瑚覆盖率、珊瑚多样性、均匀度和物种丰富度最高。珠江三角洲和东亚地区的珊瑚物种丰富度和活珊瑚覆盖率分别最低。PIR 的珊瑚均匀度最低，而 AR 的 Shannon-Weiner 多样性最低。礁鱼科（Lutjanidae）和珊瑚科（Dendrophyllidae, Alcyoniidae, Plumulariidae, Mussidae, and Poritidae）之间有很强的正相关关系。珊瑚科 Acroporidae 与鱼科 Pomacentridae 和 Pomoacanthidae 呈中度正相关。总之，我们的研究结果提供了斯里兰卡东部沿海珊瑚礁、珊瑚礁鱼类多样性及其关系的全面展望。

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来源期刊

Journal of Coastal Conservation ENVIRONMENTAL SCIENCES-MARINE & FRESHWATER BIOLOGY

CiteScore

3.60

自引率

4.80%

发文量

期刊介绍： The Journal of Coastal Conservation is a scientific journal for the dissemination of both theoretical and applied research on integrated and sustainable management of the terrestrial, coastal and marine environmental interface. A thorough understanding of both the physical and the human sciences is important to the study of the spatial patterns and processes observed in terrestrial, coastal and marine systems set in the context of past, present and future social and economic developments. This includes multidisciplinary and integrated knowledge and understanding of: physical geography, coastal geomorphology, sediment dynamics, hydrodynamics, soil science, hydrology, plant and animal ecology, vegetation science, biogeography, landscape ecology, recreation and tourism studies, urban and human ecology, coastal engineering and spatial planning, coastal zone management, and marine resource management.