Effects of Physico-chemical Parameters on Phytoplankton of a Tidal Creek, Lagos, Nigeria

Abstract

Physico-chemical parameters have been observed to influence phytoplankton composition of coastal areas and water in Nigeria. In order to assess this, the phytoplankton composition of a tidal creek in Lagos was investigated in relation to the physico-chemical characteristics for twelve months (February 2010-January 2011. Six stations were created, phytoplankton samples were collected using 55µm mesh size plankton net and water samples were also collected for physico-chemical parameters analysis. Four major divisions, Bacillariophyta (78%), Chlorophyta (11%), Cyanophyta (10%) and Euglenophyta (0.07%) were documented. The phytoplankton abundance was influenced by parameters such as rainfall, phosphate-phosphorus, nitrate-nitrogen and salinity. and October 2010 (station C) respectively. Human induced stressors such as dredging, sand mining and poor sewage system might have affected the phytoplankton composition of the studied area.

Plankton and Macrobiota Composition and Diversity of Three Tropical Freshwaters Rivers in Ogun and Ondo States, Southwest Nigeria

“…The presence and dominance of diatoms in the sampling areas conformed with observation made by Nwadiaro (1990) in the chanomi creek system of the Niger Delta, Chindah and Pudo (1991) in Bonny River, Erondu and Chindah (1991) in the new Calabar River, Niger Delta, Nwankwo (2005, 2008) in Olero and Abule-Eledu creek respectively, in Ogbe creek and Adesalu and Kunrunmi (2012) in the Lagoons of South-Western Nigeria.…”

Influence of Environmental Variables on the Abundance and Distribution of Phytoplankton: A case Study of Lekki Lagoon, Sub-Saharan Africa

“…Similarly, Abdul et al (2015) also reported 6 phytoplankton divisions in Ogun state coastal estuary which is a portion of the study area but higher number of species (42) was recordedcompared to the present study. Dushyant and Singh (2013) and Adesalu (2012) recorded higher number of species (117 and 61 respectively) in Tighra Reservoir, India and Majidun creek of Lagos lagoon, Nigeria. However, the number of divisionsrecorded by both authors (4 and 3divisions respectively) was lower than the number recorded in this study.…”

“…Samples were then preserved in 4% formalin as described by Ogbuagu and Ayoade (2012) and Sharma et al (2015). Samples were obtained during daylight between 11am and 2pm so as to minimize variations as a result of the diurnal migration of plankton (Adesalu, 2012).…”

“…Various studies have been carried out on phytoplankton and environmental parameters of Lagoons in Sub-Sahara, Africa (Onyema, 2009;Onyema and Nwankwo, 2009;Adesalu, 2012;Adesalu and Nwankwo, 2012) where univariate analyses were mostly used. However, Lekki lagoon has not been extensively studied on this area.…”

Freshwater diatoms diversity of national parks in Nigeria I: Okomu national park, South-South, Nigeria

“…In Nigeria, algological studies on lotic system are gaining interest but necessarily that of national parks and include that of Kadiri and Azomani (2000) who studied the effect of brewery effluent on the growth of two chlorophytes in Ikpoba River, Kadiri and Omozusi (2002) reported the phytoplankton of River Okhuahe in Benin, Kadiri (2007) reported the phytoplankton of River Ethiope. Most recent phycological information in similar freshwater bodies are available in Akoma and Opute (2010), Nwankwo (2010, 2012), Alika and Akoma (2012), Adesalu et al https://dx.doi.org/10.4314/ijs.v19i2.7 (2010Adesalu et al https://dx.doi.org/10.4314/ijs.v19i2.7 ( , 2016aAdesalu et al https://dx.doi.org/10.4314/ijs.v19i2.7 ( , 2016b, Ekhator et al (2014Ekhator et al ( , 2015, Adesalu (2016), Adesalu and Kunrunmi (2016), Akinyemi and Adesalu (2016). Of all mentioned work above, Okomu National Park water bodies and several other national parks except River Oli in Kainji Lake National park (Adesalu, 2010) water bodies remain without phycological information hence such studies remain important because majority of the riverine inhabitant most of the time, depend on their surrounding water (River) apart from rain water for their water needs.…”