Species diversity, abundance, and distribution of freshwater prawns along a selected perennial stream in Ngangla Gewog, Zhemgang, Southern Bhutan

IF 0.9 4区环境科学与生态学 Q4 OCEANOGRAPHY

Oceanological and Hydrobiological Studies Pub Date : 2023-12-01 DOI:10.26881/oahs-2023.4.10

Thinley Wangda, Sabreen Bashir, Bhagat Suberi, Agrataben Vadhel, Tabarak Malik, Anand Mohan

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Abstract

Abstract The study and diversity of freshwater prawns are of great importance due to growing interest in biodiversity and its relative abundance. The present study was carried out for a selected stream divided into three different habitat types: namely, pond, run, and riffle. The study was focused on the diversity and abundance of prawns. To make it more systematic, a transect was laid upon the stream and it was divided into 30 plots with 100 m intervals. Metapenaeus rosenbergii, Penaeus japonicas, and Metapenaeus insolitus were species recorded in the pond habitat type only. The Penaeus genus was the most prominent in the study area while the genus Metapenaues was the least abundant. The diversity of freshwater prawns was found to be highest in the pond rather than the run and riffle. Documented information for prawn populations in Bhutan is sparse. Therefore, there is a wide research gap regarding prawn diversity in Bhutan. This study will help to establish a baseline data for the prawn distribution in the proposed study area. The present study will serve as a reference guide for future researchers.

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不丹南部浙港昂拉乡一条选定常年溪流沿岸淡水虾的物种多样性、丰度和分布情况

摘要由于人们对生物多样性及其相对丰度的兴趣与日俱增，淡水对虾的研究及其多样性具有重要意义。本研究选取了一条溪流，将其分为三种不同的栖息地类型：池塘、流水和溪流。研究的重点是对虾的多样性和丰度。为了使研究更加系统化，研究人员在溪流上设置了一个横断面，并将其划分为 30 个地块，每个地块间隔 100 米。仅在池塘生境类型中记录到了罗氏沼虾（Metapenaeus rosenbergii）、日本对虾（Penaeus japonicas）和无须对虾（Metapenaeus insolitus）。在研究区域中，对虾属的数量最多，而海水对虾属的数量最少。研究发现，淡水对虾的多样性在池塘中最高，而不是在径流和溪流中。有关不丹对虾种群的文献资料很少。因此，关于不丹对虾多样性的研究缺口很大。本研究将有助于建立拟议研究区域对虾分布的基准数据。本研究将为未来的研究人员提供参考指南。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Oceanological and Hydrobiological Studies 地学-海洋学

CiteScore

1.70

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Oceanological and Hydrobiological Studies is an international journal published by the Institute of Oceanography, University of Gdańsk in Poland. The journal has 4 issues per year and contains papers on all aspects of the marine environment and hydrobiology. All manuscripts are reviewed by editors and independent experts. Based on the referees'' recommendations, the Editor will make a decision on whether to accept a contribution. All articles are published in English. The journal is open to all matters concerning the water environment, thus providing the readers with a wide spectrum of topics in every issue.