ABSTRACT
The water quality and algal diversity of the stocked and unstocked ponds and the dam reservoir at Gesedaddo farms, Yola, Adamawa State, Nigeria, were assessed for ten months. Meteorological data were accessed from Modibbo Adama University of Technology, Yola. Physico-chemical parameters such as temperature, pH, transparency, conductivity dissolved oxygen, total dissolved solids (TDS),biochemical oxygen demand (BOD), magnesium, potassium, sodium, nitrates, sulphates, phosphates,and some trace elements (iron, copper, and zinc) were determined using standard methods.Thedrop count method was employed in algal microscopy. Algal diversityand species richness were determined using Margarlef and Shannon-Wiener indices. A total of forty algal taxa belonging to four divisions were found. They are Cyanophyta (26.47%), Chlorophyta (44.53%), Bacillariophyta (24.80%) and Euglenophyta (4.20%). All data were subjected to statistical analysis using Analysis of variance ANOVA, Duncan Multiple Range Test DMRT and Correlation coefficient. Tests of significance were done at P < 0.05 and P < 0.01 confidence levels. Water temperatures correlated positively with air temperatures, PO4, NO3, Fe, Na and Cu. Total hardness correlated negatively with pH, K, Mn and Zn. Air and water temperatures correlated positively with Navicula and Nitzschia spp. and negatively with Eudorina elegans and Trachelomonas spp.Seasonal variation of algal population revealed thatMicrocystisspecies a toxin producing blue-green alga was not recorded in wet season but were recorded in dry season. However, Micrasterias anindicator of clean water was recorded in the un-stocked fish pond. Phacus, Euglena, andTrachelomonas, indicators of organically polluted environment were recorded in dry season in the fish ponds but absent in dry season in the dam reservoir. The seasonal presence and absence of algal species in particular locations with the ambient physico-chemical parameters make them potential bioindicators for biomonitoring of the fish ponds. Anthropogenic activities in the catchment area affected the concentrations of chemicals in the dam reservoir and stocked fish pond. Chlorophycean indices were 0.96, 0.873 and 1.57 for the stocked fish pond, unstocked fish pond and the dam reservoir respectively, while the Myxophycean indices were 1.0, 0.839 and 1.80for the three locations respectively.These values suggest that fish ponds were oligotrophic and the dam reservoir eutrophic. The study recommends qualitative and quantitative studies of water quality for early signals of pollution for timely intervention.
Terms of Use: This is an academic paper. Students should NOT copy our materials word to word, as we DO NOT encourage Plagiarism. Only use as a guide in developing your original research work. Thanks.
Disclaimer: All undertaking works, records, and reports posted on this website, eprojectguide.com are the property/copyright of their individual proprietors. They are for research reference/direction purposes and the works are publicly supported. Do not present another person’s work as your own to maintain a strategic distance from counterfeiting its results. Use it as a guide and not duplicate the work in exactly the same words (verbatim). eprojectguide.com is a vault of exploration works simply like academia.edu, researchgate.net, scribd.com, docsity.com, course hero, and numerous different stages where clients transfer works. The paid membership on eprojectguide.com is a method by which the site is kept up to help Open Education. In the event that you see your work posted here, and you need it to be eliminated/credited, it would be ideal if you call us on +2348064699975 or send us a mail along with the web address linked to the work, to eprojectguide@gmail.com. We will answer to and honor each solicitation. Kindly note notification it might take up to 24 – 48 hours to handle your solicitation.