Plankton Composition in Relation to Water Quality in the Coastal Waters of Nigeria

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A. O. Ajibare
P. O. Ayeku
J. O. Akinola
A. H. Adewale


Coastal waters of Ondo State, Nigeria have diverse assemblage of fish, yet there is dearth of information on its plankton composition. This study investigates plankton components in relation to physicochemical characteristics of the coastal waters bordering Olotu, Ayetoro and Bijimi in providing baseline information that can be used for planning and implementation of policies for monitoring, impacts assessment and conservation. Surface water samples were collected on monthly basis from March to June 2015 to analyze physicochemical parameters while plankton net of 55μm mesh size was used for collection of plankton using standard methods prescribed by APHA. The light and dark bottle method was used to determine primary productivity. Shannon-wiener, Margalef and Equitability Indices were used for diversity. Values of the physicochemical parameters observed ranged as follows: temperature, 27.47±2.06-29.27±0.31ºC; turbidity, 43.43±0.91-65.33±2.52NTU; pH, 5.54±0.31-6.12±0.30; BOD, 2.20±0.29-5.43±0.54 mg/l; COD, 6.08±2.71-6.66±1.52 mg/l; dissolved oxygen, 6.39±0.39-7.78±0.19 mg/l and salinity, 2.03±0.06-3.77±0.04 mg/l. Fifteen species of phytoplankton and three developmental stages of zooplankton were recorded. Phytoplankton accounted for 83.3% as against 16.7% zooplankton. Diatoms (93.3%) and dinoflagellates (6.7%) represented phytoplankton whereas 66.7% of zooplankton belonged to the phylum Arthropoda. Primary productivity ranged between 132.194±13.48m-3hr-1 and 134.48±15.27m-3hr-1. Some dominant species recorded were Coscinodiscus, Biddulphia, Copepod, Skeletonema and Ditylum. pH and Temperature were major determinant of the composition, diversity and abundance of plankton. The observed plankton group indicates the suitability of the creeks as habitat and breeding ground for diverse aquatic species. The water quality falls within acceptable range hence the environment can be classified as healthy ecosystem.

Phytoplankton, zooplankton, physicochemical, estuarine, algae and pollution.

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How to Cite
Ajibare, A. O., Ayeku, P. O., Akinola, J. O., & Adewale, A. H. (2019). Plankton Composition in Relation to Water Quality in the Coastal Waters of Nigeria. Asian Journal of Fisheries and Aquatic Research, 5(2), 1-9.
Original Research Article


Harris JM, Vinobaba P. Impact of Water Quality on Species Composition and Seasonal Fluctuation of Planktons of Batticaloa Lagoon, Sri Lanka. Journal of Ecosystem Ecography. 2012;2:4-12.

Offem BO, Ayotunde EO, Ikpi GU, Ada FB, Ochang SN. Plankton-Based Assessment of the Trophic State of Three Tropical Lakes. Journal of Environmental Protection. 2011;2:304-315.

Daramola JO, Adekunle MF, Olaniyi MO, Alayaki FM. Diagnostic survey report of Ondo State agricultural production. Institute of Food Security, Environmental Resources and Agricultural Research, University of Agriculture, Abeokuta. 2009:1-171.

Benson NU, Essien JP, Bassey DE. Hydrobiological constraints of trace metals in surface water, coastal sediment and water lily of Calabar River, Nigeria. African Journal of Biotechnology. 2007;6(20): 2358-2362.

Olawusi-Peters OO, Akinola JO, Jelili AO. Assessment of Heavy Metal Pollution in Water, Shrimps and Sediments of Some Selected Water Bodies in Ondo State. Journal of Researches in Agricultural Sciences. 2017;5(2):55-66.

Imoobe TOT. Diversity and Seasonal Variation of Zooplankton in Okhuo River, a Tropical Forest River in Edo State, Nigeria, Centrepoint Journal (Science Edition). 2011;17(1):37-51.

Cako V, Baci S, Shena M. Water Turbidity as One of the Trophic State Indices in Butrinti Lake. Journal of Water Resource and Protection. 2013;5:1144-1148.

Gharib S, Radwan, Ahmed, Abdel-Haim A. Phytoplankton and environmental variables as a water quality indicator for the beaches at Matrouh, south-eastern Mediterranean Sea, Egypt: An assessment. Oceanologia. 2011;53(3):820-838.

Akegbejo-Samson Y. Ecology of the Fisheries Resources of Coastal Wetlands of Ondo State and Its Management Implications. Ph.D. Thesis, Federal University of Technology, Akure, 1995; 297.

Asaolu SS. Chemical pollution studies of coastal waters of Ondo State. Doctor of Philosophy (Ph. D) Thesis. Federal University of Technology, Akure, Nigeria.1998;15-17.

Adeparusi EO, Ajibefun AI, Akeremale EO. Smoke-Curing of Fish by Artisanal Fisher Folks in Ilaje, Ondo State, Nigeria. UNAAB. ASSET Ser. A. 2003;3(4):101-109.

Adebowale KO, Agunbiade FO, Olu-Owolabi BI. Impacts of natural and anthropogenic multiple source of pollution on the environmental conditions of Ondo State coastal water, Nigeria. Journal of Environment, Agriculture and Food Chemistry. 2008;7(4):2798-2810.

Abdus-Salam N, Adekola FA, Apata AO. A Physicochemical Assessment of Water quality of oil producing areas of Ilaje, Nigeria. Advances in Natural and Applied Sciences, 2010;4(3): 333-344.

Bayode OJ, Adewunmi EA, Odunwole S. Environmental Implications of Oil Exploration and Exploitation in the Coastal region of Ondo State, Nigeria: A regional planning appraisal. Journal of Geographical and Regional Planning. 2011;4(3):110-121.

Olawusi-Peters OO, Ajibare AO, Bello-Olusoji OA. Length-weight relationship and condition factor of shrimps in coastal waters of Ondo state, South West, Nigeria. International Journal of Fisheries and Aquatic Studies. 2014;1(3):137-142.

APHA. Standard methods for the examination of water and waste water. 20 edition, American Public Health Association, Washington D.C.1998;1-47.

UNESCO. Phytoplankton manual; 1978.
[ISBN 92-3-101572-9]

Yamaguchi E, Gould A. Phytoplankton Identification Guide. The University of GeorgiaMarine Education Center and Aquarium.n; 2007.

Boyd CE. Water quality in warm water fish pond. Alburn University Agricultural Experimental Station, Alburn, Alabama, USA; 1979.

Smith D, Johnson KB, Kendall-Hunt. A Guide to Marine Coastal Plankton, rev; 1996.

Margalef R. Perspective in Ecological Theory, University of Chicago Press. 1968;112.

Shannon CE, Weaver W. The mathematical theory of communication. University Illinois Press, Urbana, IL; 1963.

Pielou EC. Species diversity and pattern diversity in the study of ecological succession. Journal of Theoretical Biology. 1966; 10:370–383.

Begum M, Hossain MY, Wahab MA, Kohinoor AHM. Effects of iso-phosphorus fertilizers on water quality and biological productivity in fish pond. Journal of Aquaculture in Tropics. 2003;18:1-12.

Ajibare AO. Assessment of physico-chemical parameters of waters in Ilaje Local Government Area of Ondo State, Nigeria. International Journal of Fisheries and Aquatic Studies. 2014;1(5):84-92.

Bolarinwa JB, Fasakin EA, Fagbenro AO. Physicochemical analysis of the coastal waters of Ondo State, Nigeria. International Journal of Research in Agriculture and Forestry. 2016;3(11):13-20.

Olawusi Peters O, Akinola JO. Assessment of Heavy metals concentration in some coastal waters of Ondo state, Nigeria. Proceedings of the 5th annual Conference School of Sciences, Federal University of Technology, Akure, Ondo State, Nigeria. SOS/CS/002; 2017; 175-184.

Onyema IC, Ojo AA. The zooplankton and phytoplankton biomass in a tropical creek, in relation to water quality indices. 2008; 5(4):75-82,

Nkwoji JA, Yakubu A, Ajani GF, Balogun KJ, Renner KO, Igbo JK. Seasonal variations in water chemistry and benthic macro invertebrates of a South Western Lagoon, Lagos, Nigeria. Journal of Amplified Science. 2010;6(3):85-92.

Abowei JFN. Salinity, Dissolved Oxygen, pH and Surface Water Temperature Conditions in Nkoro River, Niger Delta, Nigeria. Advance Journal of Food Science and Technology. 2010;2(1):30 -40.

Olawusi-Peters OO, Ajibare AO. Species richness, diversity and abundance of some Decapod Crustaceans In coastal waters of Ondo State, South West, Nigeria. International Journal of Fauna and Biological Studies. 2014;1(5):44-51.

Varadharajan D, Soundarapandian P. Biodiversity and Abundance of Phytoplankton from Muthupettai Mangrove Region, South East Coast of India. Journal of Aquaculture Research and Development. 2015;6:383-389.

Balogun KJ, Ajani EK. Spatial and temporal variations of Phytoplankton pigments, Nutrients and Primary productivity in water column of Badagry Creek, Nigeria. American Journal of Research Communication. 2015;3(7):157-172.

Emmanuel BE, Onyema IC. The Plankton and Fishes of a Tropical Creek in South – western Nigeria. Turkish Journal of Fisheries and Aquatic Sciences. 2007;7(2): 105 –113.

Adirondack Ecologists LLC. Schroon Lake Phytoplankton Monitoring Project. Schroon Lake Association, New York, USA; 2010.