Record Details

Seasonal variation of diatom biodiversity with relation to environmental factors in Northern Arabian Sea

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Seasonal variation of diatom biodiversity with relation to environmental factors in Northern Arabian Sea
 
Creator Hamid, T
Shoaib, N
Siddiqui, P J A
 
Subject Centric diatom
Gadani
Monsoon
Pennate diatom
Sind
 
Description 101-113
Diatoms are planktonic, microscopic and ubiquitous in distribution. In this study, the samples were collected in four
seasons from two sites of the Northern Arabian Sea (Gadani shipbreaking area of the Baluchistan coast and Sandspit, Sind
coast of Pakistan) for a period of one year. The seasonal distribution of diatom and variations in physico-chemical
characteristics of seawater were examined from samples collected on board using Niskin bottles. Eighty five species of
diatoms (pennate = 40; centric = 45) were recorded along the Gadani shipbreaking area of the Baluchistan coast of Pakistan.
Similarly, from Sandspit, Sind coast of Pakistan seventy four species of diatoms (pennate = 35; centric = 39) were recorded.
In Gadani, the highest number of species was recorded in North-East Monsoon (NEM), while in Sandspit, it was recorded in
the South-West Monsoon (SWM). The dominant species of pennate diatoms such as Navicula, Nitzschia and Pseudonitzchia
were similar in abundance at both the sites, while the dominant centric diatoms were diversified in both coastal sites. The
present study indicates that the environmental factors such as temperature, dissolve oxygen, salinity, pH, nitrate, nitrite,
phosphate, ammonia, and chlorophyll-a influences the diatom diversity and abundance, and any significant changes in the
diversity of phytoplankton species indicate deterioration of the marine ecosystem.
 
Date 2024-03-04T05:55:28Z
2024-03-04T05:55:28Z
2024-02
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/63519
https://doi.org/10.56042/ijms.v52i02.6926
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJMS Vol.52(02) [February 2023]