季节变化对缅甸曼德勒地区孙耶湖鱼类组成、丰度和多样性的影响

Nandar Aye Winn, Phyo Sandi, T. Khine, Kay Thi Nyunt, Hnin Thet Kyaw, Moe Sabai, Thu Thu Naing Aung
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引用次数: 2

摘要

本研究基于孙野湖登陆点的渔获量数据,对影响鱼类物种多样性的物种组成、丰度和计量数据进行了评估。这一发现代表了隶属于13科的25个物种。群落中组成最高的是鲤鱼形目。多样性和均匀性都很低,只有少数物种占主导地位。低多样性值(H)和最高优势指数值(1-D)与该群落的较低多样性估计值相关。主要优势种尼罗罗非鱼是分布最广的物种,其发生率为100%。最高发生率出现在夏季。常见捕获物种的季节性丰度为尼罗耳蠊(O.niloticus)、atkinsonii Amblypharyngdon、sophore Puntius、ranga Parambassis和Notopterus Notopterus。在该群落中,尼罗菌在季风后期和冬季被记录在案,而A.atkinsonii和P.sophore在季风早期和夏季被记录在案。结果表明,不同季节的多样性格局差异不显著(P<0.05)。根据计量数据,我们在两年的研究中观察到了类似的季节模式趋势。然而,生产力不同,它们的贡献百分比也因季节而异。百分比相似性表明,就物种丰富度而言,冬季和夏季是最相似的季节。相对丰度的季节差异表明,晚季风和冬季差异最大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of seasonal variation in fish species composition, abundance and diversity of Sunye Lake, Mandalay Region, Myanmar
This study was conducted to assess the species composition , abundance and metrological data influencing fish species diversity based on catch data from landing site of the Sunye Lake. The finding represented that 25 species belonging to 13 families. Cypriniformes was highest composition in community. Both diversity and evenness were low and only a few species were dominated. Low diversity value (H) and highest dominance index values (1-D) were associated with lower diversity estimates for this community. Major dominant species Oreochromis niloticus was the most widely distributed species with a 100% occurrence occurring in the lake. Highest occurrence was recorded during summer. Seasonal abundance of commonly captured species were O. niloticus, Amblypharyngodon atkinsonii, Puntius sophore, Parambassis ranga  and Notopterus notopterus . In this community O. niloticus was recorded in the late monsoon and winter whereas A. atkinsonii and P. sophore were recorded in greater abundance during the early monsoon and summer. Finding results indicated that no significant (P<0.05) difference in diversity pattern among the seasons. According to metrological data, we observed similar seasonal pattern trends during two years study. However, productivity was different and their percentage of contribution also differs from each other seasonally. Percent similarity indicated that winter and summer were most similar season in terms of species richness. Seasonal difference in relative abundance indicated that late monsoon and winter were most dissimilarity.
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来源期刊
Iranian Journal of Ichthyology
Iranian Journal of Ichthyology Agricultural and Biological Sciences-Aquatic Science
CiteScore
0.70
自引率
0.00%
发文量
0
期刊介绍: Iranian Journal of Ichthyology (IJI) is a peer-reviewed journal for publication of high quality papers on any aspect of ichthyology and will be published 4 times a year by the Iranian Society of Ichthyology (http://www.isi-org.ir). The journal welcomes the submission of manuscripts that meets the general criteria of significance and scientific excellence, and will publish original scientific articles in the fields of ichthyology. The editors welcome the submission of original manuscripts including Research Articles, Short communications, and Views & News. Review papers by distinguished authors and Special Issues will also be considered. It is our aim to provide the international scientific community with an efficiently published journal, meeting high scientific and technical standards. Scopes of Iranian Journal of Ichthyology includes: Systematics, taxonomy, morphology, anatomy, biogeography, biodiversity, conservation, ecology and general biology of fishes (reproduction, food and feeding habits, age and growth, population dynamics, etc.). Papers on freshwater, brackish, marine and fossil fishes will be considered.
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