IIARD International Institute of Academic Research and Development

JOURNAL OF BIOLOGY AND GENETIC RESEARCH (JBGR )

E-ISSN 2545-5710
P-ISSN 2695-222X
VOL. 11 NO. 3 2025
DOI: 10.56201/jbgr.vol.11.no3.2025.pg28.39

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Spatio-Temporal Distribution and Abundance of Plankton in Relation to Physico-Chemical Parameters of Kafin Gana Dam, Jigawa State

Abdurrahman Ibrahim Said, Kabiru Shehu, Mahmud Sabo Idris, Nazifi Abbas, Mustapha K, Jabiru Mamman, Rabiatu Umar Babayaro, Aminu Salisu

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Abstract

The study determined the seasonal and spatial variation in the species distribution and abundance of phytoplankton and zooplankton in Kafin Gana Dam, Jigawa State. Sampling was conducted from March to August 2024, covering the dry and rainy seasons. Plankton were collected using planktonic net of 55µm mesh size by hauling horizontally for five meters. The collected samples were preserved in 4% formalin and transported to laboratory for counting and identification. One-way analysis of variance (ANOVA) was used to compare seasonal variations and Pearson’s correlation was applied to determine the relationships between various parameters. Results indicated significant seasonal and spatial variations in plankton abundance, driven by changes in temperature, pH, turbidity, and dissolved oxygen. A total of 834 phytoplanktons from four phyla namely. Chlorophycaea, Bacilliorophycaea, Euglenophycaea and Cyanophycaea were encountered in the study. Zooplankton consisting a total of 230 species belonging to three major taxonomic groups namely Cladoceran, Copepoda and Rotifera were identified. The dry season variables were more favourable to plankton survival. Site B consistently supported the highest plankton abundance, while site A had the lowest overall count. The findings highlight the critical need for sustainable dam management, periodic water quality monitoring, and pollution control measures to ensure the dam’s ecological balance and utility.

keywords:

Plankton, Spatial abundance, Temporal variation, Physico-chemical parameters,

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