Correlations between Physico-Chemical Parameters and Relative Fish Abundance in Anambra River Basin, Southern Nigeria.

Sabastine Nnanna  Odo; Magareth Kelechi Odo; Ifeanyi C. Obodagu; Emmanuel C. Ezikanyi; Emmanuel Chibuike Nwankwo; Charles Anayo Iwuji; Innocent Ajah Okoro

doi:10.5281/zenodo.13892326

Authors

Sabastine Nnanna Odo Department of Fisheries and Aquatic Resources Management
Magareth Kelechi Odo Department of Environmental Management and Toxicology
Ifeanyi C. Obodagu Department of Fisheries and Aquatic Resources Management
Emmanuel C. Ezikanyi Department of Fisheries and Aquatic Resources Management
Emmanuel Chibuike Nwankwo Department of Forestry and Environmental Management
Charles Anayo Iwuji Department of Statistics
Innocent Ajah Okoro Department of Chemistry

DOI:

https://doi.org/10.5281/zenodo.13892326

Keywords:

Correlation, physico, chemical, Fish, abundance, River

Abstract

This study investigated the interaction between al parameters and fish abundance in Anambra River Basin. Both fish and water samples were collected between January and November, 2023. Fish samples were identified using keys and water analysis was done following standard protocols and procedures. Physico-chemical parameters and fish abundance vary across the space and time. Nine physiochemical parameters (Turbidity, DO, pH, Sal., EC, TSS, TDS, BOD and Col.) had a significant effect on the variability of the fish abundance among the 21 parameters investigated. Cyprinidae was found in the area of the River Basin with high concentration of TSS and DO. Bagridae was more in abundance in the area s with high concentration of BOD and low concentration of turbidity. Mochokidae and Mormyridae were more on the area of the River Basin where turbidity is high with low BOD. Channidae was found to be abundantly more in area with high concentration of EC and TSS. Clariidae and Characidae were found more abundance in area of the River Basin where the level of colour was high with low salinity. Cichldae family was found more in the area of the River basin with high concentration of salinity while the Malapteridae and Citharidae families were found more in areas with high concentration of TDS and pH and low BOD concentration. The environmental variables, such as pH, Total Suspended Solid (TSS), Total suspended solid (TDS), Dissolved oxygen(DO), and cations interdepend on one another and determine the fish community structure and abundant.

Author Biographies

Sabastine Nnanna Odo, Department of Fisheries and Aquatic Resources Management

Department of Fisheries and Aquatic Resources Management

Magareth Kelechi Odo, Department of Environmental Management and Toxicology

Department of Environmental Management and Toxicology

Ifeanyi C. Obodagu, Department of Fisheries and Aquatic Resources Management

Department of Fisheries and Aquatic Resources Management

Emmanuel C. Ezikanyi, Department of Fisheries and Aquatic Resources Management

Department of Fisheries and Aquatic Resources Management

Emmanuel Chibuike Nwankwo, Department of Forestry and Environmental Management

Department of Forestry and Environmental Management

Charles Anayo Iwuji, Department of Statistics

Department of Statistics

Innocent Ajah Okoro, Department of Chemistry

Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Abia State, Niger

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