阿萨姆邦贾布罗里河生态区 Tor putitora 和 Neolissochilus hexagonolepis 种群的形态计量与分子评估

IF 0.4 4区 农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Raktim Sarmah, Utpal Kumar Das, Debajit Sarma, N. Shahi, Parvaiz Ahmed, P. K. Pandey, Rajdeep Dutta
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引用次数: 0

摘要

背景:生态带是不同生态系统之间的重叠区域,被称为 "交界区或张力带",其中蕴藏着一系列独特的生物。Tor putitora和Neolissochilus hexagonolepis是两种濒临灭绝的马嘶鱼,急需得到保护。贾布罗里河(River Jia Bhoroli)的巴鲁克蓬(Bhalukpung)地区是一个理想的生态过渡区范例,其生态系统从类似山麓河流生态系统转变为河流洪泛平原生态系统。然而,目前还缺乏对生态过渡带中受威胁鱼类种群的研究,而这些鱼类种群可作为保护地点。因此,本研究旨在获得有关嘉博罗里河这些濒危鱼类种群与其山麓-洪泛平原河流界面生态区之间关系的第一手资料。研究方法收集了 2021 年 1 月至 12 月为期一年的水质和地形数据以及鱼类样本。对马鲛鱼种进行了鉴定,并计算了单位努力量渔获量(CPUE)。结果:利用形态计量学和分子学工具确认了所采集的马氏鱼为 T. putitora 和 N. hexagonolepis。发现 N. hexagonolepis 的 CPUE 为 4.3-12.6,T. putitora 为 4.1-10.3。研究发现,生态区有大量的马氏鱼,生态区被认为是马氏鱼的重要食物来源。将 Bhalukpong 指定为佳波罗里河的生态区,并将其作为鱼类保护区,有助于保护鱼类种群。建议今后进一步开展包括生态学各个方面的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphometric and Molecular Assessment of Tor putitora and Neolissochilus hexagonolepis Population in Jia Bhoroli river Ecotone Zone, Assam
Background: Ecotones are areas of overlap between different ecosystems, referred to as ‘junction zones or tension belts’, that harbor a distinct collection of organisms. Tor putitora and Neolissochilus hexagonolepis are two threatened Mahseer species which requires urgent conservation attention. Bhalukpung area in the River Jia Bhoroli is an ideal example of an ecotone, as its ecosystem transforms from resembling a foothill river ecosystem to a river floodplain ecosystem. However, studies on threatened fish populations in ecotone zones, which could be used as conservation sites, are lacking. Therefore, the present study aims to generate firsthand information on the relationship between the populations of these threatened fish and their foothill-floodplain river interface ecotone in the Jia Bhoroli River. Methods: The data on water quality, topography was collected for a period of one year from January to December, 2021 along with fish samples. The mahseer species were identified and catch per unit effort (CPUE) was also calculated. Result: Identification of the collected mahseer fish as T. putitora and N. hexagonolepis were confirmed using both morphometric as well as molecular tools. CPUE was found to be 4.3-12.6 for N. hexagonolepis and 4.1-10.3 for T. putitora. The ecotone zone was found to have a thriving mahseer population and ecotones are believed to play a crucial role as a diverse food source for the fish. Conserving Bhalukpong as a designated ecotone site in the Jia Bhoroli River as a fish sanctuary can help to protect their populations. Further research that encompasses all aspects of ecology is recommended for the future.
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来源期刊
Indian Journal of Animal Research
Indian Journal of Animal Research AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
1.00
自引率
20.00%
发文量
332
审稿时长
6 months
期刊介绍: The IJAR, the flagship print journal of ARCC, it is a monthly journal published without any break since 1966. The overall aim of the journal is to promote the professional development of its readers, researchers and scientists around the world. Indian Journal of Animal Research is peer-reviewed journal and has gained recognition for its high standard in the academic world. It anatomy, nutrition, production, management, veterinary, fisheries, zoology etc. The objective of the journal is to provide a forum to the scientific community to publish their research findings and also to open new vistas for further research. The journal is being covered under international indexing and abstracting services.
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