Diatoms (Bacillariophyta) of the world’s highest aquatic environments from the Western Himalayas, India

IF 0.9 4区环境科学与生态学 Q4 OCEANOGRAPHY Oceanological and Hydrobiological Studies Pub Date : 2023-06-01 DOI:10.26881/oahs-2023.2.04

Samadhan Pardhi, T. Kokila, Mital Thacker, B. Alakananda, B. Karthick

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Abstract

Abstract The present study is a preliminary taxonomic survey of diatom assemblages from one of the highest mountain ranges in the Western Himalayas – Ladakh. 37 samples were collected from 19 different sampling sites at altitudes ranging from 3100–4552 amsl. The diatom communities were representative of habitats such as lakes, streams, and hot springs from high altitudes. The dominant diatoms are studied using light microscopy and identified using valve morphometrics. The study enlists a total of 74 taxa belonging to 40 genera along with photomicrographic plates. Commonly-found species of high-altitude hot springs habitats were Gogorevia exilis and Denticula thermaloides. Reimeria sinuata, Fragilaria vaucheriae, Gomphonella cf. olivacea, Encyonema ventricosum, Lindavia biswashanti, Diatoma moniliformis, and Denticula valida were commonly occurring species in stream, river and lake habitats. Further analysis and putative novel species from this high-altitude environment will be described in future publications.

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印度喜马拉雅山脉西部世界上最高水生环境的硅藻（硅藻门）

摘要本研究是对喜马拉雅山脉西部最高山脉之一拉达克的硅藻组合的初步分类调查。从海拔3100–4552 amsl的19个不同采样点采集了37个样本。硅藻群落是高海拔地区湖泊、溪流和温泉等栖息地的代表。利用光学显微镜研究优势硅藻，并利用瓣膜形态计量学鉴定优势硅藻。这项研究共收录了40属74个分类群和显微照片板。在高海拔温泉栖息地常见的物种有果戈里亚（Gogorevia exilis）和热斑蝶（Denticula thermaloides）。在溪流、河流和湖泊生境中，常见的物种有：深纹Reimeria sinuta、Fragilaria vaucheriae、Gomphonella cf.olivacea、Encyonema ventricosum、Lindavia biswashanti、Diatoma moniliformis和Denticula valida。未来的出版物将描述来自这种高海拔环境的进一步分析和推测的新物种。

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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.