Assessment of phytoplankton composition and physicochemical parameters of Omasi rice field, Anambra State, Nigeria
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Abstract
The microalgae and physicochemical parameters of floodwater of Omasi rice field in Anambra State, Nigeria were studied. Samples for the studies were collected at monthly intervals. The microalgae were studied using
light microscopy and identified with taxonomic keys, text books and photograph materials from the internet. The physicochemical parameters and coliform content of the floodwater were analysed using the methods
described by the American Public Health Association. Simple means of the parameters and percentages of the algal populations were calculated, while Pearson correlation (p ≤ 0.05) was used to check for significance
of the relationships between the investigated parameters. A total of 12 algal taxa belonging to Chlorophyta (48.99%), Cyanophyta (32.89%), Euglenophyta (10.07%), and Bacillariophyceae (8.05%) were recorded in
decreasing order of abundance. Water temperature ranged from 26-38 °C with mean of 33.3 ± 2.56 °C; colour ranged from 15-175 Hazen units with mean of 86.25 ± 33.19 Hazen units; depth of water ranged from 7-10.5
cm with mean of 9.38 ± 0.8 cm. Ranges of nitrates and phosphates with their respective means were 0.5-1.8mg/l (0.86±0.31 mg/l) and 0.79-1.96 mg/l (1.18±0.28 mg/l). Omasi rice field supported the growth of diverse
algal groups and species; this may be as a result of available nutrients and good climate as can be deduced from the correlation analyses. Omasi rice field is typical of tropical freshwaters and some tropical rice fields that have been studied in terms of microalgal diversities and some physicochemistry.
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References
Adebowale KO, Agundibe FO, Olu-Owolabi BI. 2008. Impacts of natural and
anthropogenic multiple sources of pollution on the environmental conditions of Ondo State coastal water,Nigeria. Journal of Agriculture and Food Chemistry, 7: 2797-2811.
Adejuwon, J.O. and Mbuk, C.J. (2011). Biological and physical properties of shallow wells in Ikorodu town, Lagos, Nigeria. Journal of Geology and Mining Research, 3: 161-168.
Adeyemo, O. K., Adedokun, O. A., Yusuf, R. K. and Adeleye, E. A. (2008). Seasonal
changes in physicochemical parameters and nutrient load of river sediments in Ibadan city, Nigeria. Global Nest Journal, 10: 326-336.
American Public Health Association (APHA) (1992). Standard Methods for the
Examinations of Water and Wastewater. 18th ed. US, American Public Health Association, Washington DC.
American Public Health Association (APHA) (1985). Standard Methods for the
Examination of Water and Wastewater. 16th Ed. American Public Health
Association, Washington DC.
Bala, K. and Sinha, A.K. (2017). Algal diversity in the rice field of Parsa District (Nepal). Academic Voices, 7(1): 14-19.
Belanger, T. V.; Scheidt, D. J. and J. R. Platko, (1989). Effects of Nutrient Enrichment
on the Florida Everglades. Lake and Reservoir Management, 5:101-111.
Bellinger, E.G. and Sigee, D.C. (2010). Freshwater algae: identification and use
as bioindicators. John Wiley and Sons Ltd, UK. 271 pp.
Carlton, R.G. and Wetzel, R.G. (1987). Distributions and fates of oxygen in
periphyton communities. Canadian Journal of Botany, 65: 1031-1037
Chattopadhyay, C. and Banerjee, T.C. (2007). Temporal changes in environmental
characteristics and diversity of net phytoplankton in a freshwater lake. Turkish Journal of Botany, 31: 287-296.
Chukwu, G.O. (2007). Land Suitability Classification of Southeastern Nigerian
Wetlands for Azolla. Scientific Researc and Essays, 2: 512-515.
Egborge, A.B.M. (1981). The phosphate content of the bottom sediments of small West African impoundment. Verhandlungen des Internationalen Verein Limnologie, 21: 1025-1030.
Ezenwaji, E.E. and Otti, V.I. (2013). Rainfall trends and implications for flooding in
northern Anambra State, Nigeria. International Journal of Engineering and
Innovative Technology, 2(10): 259-264
Harding, J.S. and Winterburn, M.J. (1995). Effects of contrasting land use on
physicochemical conditions and assemblages of streams in a Canterbury (South Island, New Zealand) river system. New Zealand Journal of Marine and Freshwater Research, 29: 479- 492.
Hassan, F. M., Saleh, M. M. and Salman, J. M. (2010). A study of physicochemical
parameters and nine heavy metals in the Euphrates River, Iraq. E-Journal of
Chemistry, 7(3): 685- 692
Issa, A.A., Adam, M.S., Mohammed, A.A. and Hifney, A.F. (2000). A comparative
study of algal communities on cultivated and uncultivated soils. Pakistan Journal
of Biological Sciences, 3: 615-620.
Kadiri, M.O. (2000). Limnological studies of two contrasting but closely linked springs in Nigeria, West Africa. Plant Biosystems, 34: 123-131.
Kumar, A. and Sahu, R. (2012). Diversity of algae (Chlorophyceae) in paddy fields of Lalgutwa area, Ranchi, Jharkhand. Journal of Applied Pharmaceutical
Science, 2 (11): 92-95
Lee, R.E. (2008). Phycology. Cambridge University Press, New York. 547 pp.
Longtau, S. R. (2003). Multi-agency Part erships in West African Agriculture: a Review And Description of Rice Production Systems in Nigeria, for Department for
International Development (DFID). 50 pp.
Mustapha, M.K. (2010). Seasonal Influence of Limnological Variables on Plankton
Dynamics of a Small, Shallow, Tropical African Reservoir. Asian Journal of Experimental Biological Sciences, 1: 60 – 79.
Nangul, A. and Bhatia, R. (2013). Microorganisms: a marvelous source of
single cell proteins. Journal of Microbiology, Biotechnology and Food Sciences, 3(1): 15-18
Nweze, N.O. (2003). Phytoplankton production in Ogelube Lake Opi, Enugu State,
Nigeria. Journal of Biological Research and Biotechnology, 1: 83-96.
Nweze, N.O. and Chumboh, G.C. (2006). Physical and chemical characteristics,
algal flora and coliform content of the University of Nigeria, Nsukka sewage
treatment plant oxidation pond. Nigerian Journal of Botany, 19: 103-116.
Nweze, N.O. and Domrufus, N.A (2006). Limnological studies on Nike Lake
Enugu, Enugu State-the metaphyton and some physico- chemical aspect.
Nigerian Journal of Botany, 19(2): 396 - 404.
Nweze, N.O and Ude, BO. 2013. Algae and physicochemical characteristics of Adani rice field, Enugu State, Nigeria. Journal of Pharmacy and Biological Sciences, 8: 12-18.
Ofomata, G. E. K. (1975). Relief. In: Ofomata, G. E. K. (ed.) Nigeria in Maps: Eastern
States. Ethiope Publishing House, Benin City, Nigeria. 146 pp.
Okogwu, O.I. and Ugwumba, A.O. (2012). Response of phytoplankton functional
groups to fluctuating water level in two shallow floodplain lakes in Cross River,
Nigeria. Inland Waters, 2: 37-46.
Oliver, L., Dietrich, T., Maranon, I., Villaran, M.C. and Barrio, R.J. (2020). Producing
omega-3 polyunsaturated fatty acids: a review of sustainable sources and future
trends for the EPA and DHA market. Resources, 9:148.
Ololade, I.A. and Ajayi, A.O. (2009). Contamination profile of major rivers
along the highways in Ondo State, Nigeria. Journal of Toxicology and Environmental Health Sciences, 1:38 – 53.
Ophilia, S. and Ramanujam, P. (2017). Efficacy of green algae and cyanobacteria as
feed for juvenile Labeo gonius. Journal of Algal Biomass Utilization, 8(3): 13-22.
Pantastico JB, Suayan ZA. 1974. Algal succession in the rice field of college and
Bay Laguna, Philippines. Agriculture, 57: 313-326.
Polkowska, Z., Skarzynska, K., DubiellaJackowska, A., Staszek, W. and Namiesnik, J. (2007). Evaluation of pollutant loading in the runoff waters from a major urban highway (Gdansk Beltway, Polaand). Global Nest Journal, 9: 269-275.
Prasanna, R., Sood, A., Suresh, A., Nayak, S. and Kaushik, B. (2007). Potentials and
applicattions of algal pigments in biology and industry. Acta Botanica Hungarica,
(1-2): 131-156
Prescott, GW. (1962). Algae of Western Great Lakes Area. Dubuque, Iowa: Brown
Company Publishers. 1004 pp.
Priyadarshani, I., Sahu, D. and Rath, B. (2012). Algae in aquaculture. International
Journal of Health sciences and Research, 2(1): 108-114.
Rader, R.B. and Richardson, C.J. (1992). The effects of nutrient enrichment on algae and macro-invertebrates in the everglades: a review. Wetlands, 12: 121
– 135.
Reynaud, P.A. and Roger, P.A. (1978). N2-fixing algal biomass in Senegal rice fields. In: Environmental Role of Nitrogen-fixing Blue-green Algae and Asymbiotic
Bacteria. Ecological Bulletins (Stockholm), 26: 148 – 157.
Riesing, T.F.(2009). Cultivating algae for liquid fuel production.
http://www.geni.org/globalenergy/library/technical-articles/generation/futurefuels/permacultureactivist/cultivatingalgae-for-liquid-fuelproduction/index.shtml. Accessed September 17, 2021
Roger, P.A. and Kulasooriya, S.A. (1980). BlueGreen Algae and Rice. The International Rice Research Institute, Laguna/