Colonization dynamics of periphytic protozoa in a tropical marine ecosystem

For the bioassessment of tropical marine ecosystem, a survey of protozoa colonizing artificial substrate was conducted in the coastal waters of northern Bay of Bengal, Bangladesh. Protozoan samples were collected using glass slides from 1 and 2 m water depths at time intervals of 3, 7, 10, 14, 21, a...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom 2023-09, Vol.103, Article e62
Main Authors: Bhuain, Mohammad Jahed Hasan, Sikder, Mohammad Nurul Azim, Haider, Sayeed Mahmood Belal, Sharif, Abu Sayeed Muhammad, Uddin, Sheikh Aftab, Sharifuzzaman, SM, Xu, Henglong
Format: Article
Language:English
Subjects:
Aquatic ecosystems
Artificial substrata
Clustering
Coastal waters
Colonization
Ecological monitoring
Marine ecosystems
Protozoa
Regression analysis
Seasons
Species richness
Substrates
Water depth
Water quality
Wind
Winter
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Summary:For the bioassessment of tropical marine ecosystem, a survey of protozoa colonizing artificial substrate was conducted in the coastal waters of northern Bay of Bengal, Bangladesh. Protozoan samples were collected using glass slides from 1 and 2 m water depths at time intervals of 3, 7, 10, 14, 21, and 28 days during winter and monsoon seasons. Thus, the colonization processes of protozoa were assigned into three stages namely the initial (3 days), transitional (7 days), and equilibrium stages (10–28 days) at two depths in two seasons. Regression analyses demonstrated that the colonization dynamics of protozoa were well fitted to the MacArthur-Wilson model and logistic equation. Species richness reached equilibrium after 10–14 days and species abundance was maximum at a depth of 1 m. These results suggest that samples of protozoa can be collected at 1 m depth in winter season for monitoring the ecological health of tropical marine ecosystems.
ISSN:0025-3154
1469-7769
DOI:10.1017/S0025315423000528