Productivity of Phytoplankton by Using Different Organic Fertilizers in the Glass Aquarium

Abdulla Al Asif; Sharmin Rikta; Md. Sherazul Islam; Shammi Aktar

doi:10.37591/(rrjobi).v6i1.371

Abstract

The experiment intended to estimate the productivity using different organic fertilizer and to identify the species of phytoplankton in the aquarium tanks. The study was conducted in the laboratory of Department of Fisheries and Marine Bioscience (FMB), Jashore University of Science and Technology, Jashore, Bangladesh during November to December, 2013. Phytoplankton samples for culture were collected from fisheries experimental pond by using conical-shaped monofilament nylon net (phytoplankton net). Three treatment such as cow dung (T₁), chicken manure (T₂) and control (T₃) were designed. Each treatment had two replications. In case of T₁ and T₂, 10 g of fertilizer was used in each aquarium tank. Sampling of phytoplankton for counting and identification was done every week and 1 litre of water sample was taken from each tank. Phytoplankton sample for identification were preserved by Lugol’s solution. Three physicochemical parameters namely water temperature, dissolved oxygen (DO) and pH were measured in every sampling week during the study period. Water quality parameters of the aquarium tank varied with the variation of sampling week. There was no significant difference between water temperature, pH and DO in case of three treatment. The mean water temperature, pH and DO were 21.85±1.95 °C, 8.38±0.23 and 5.55±0.58 mg/l, respectively. The abundance of phytoplankton in T₁, T₂ and T₃ were 25–65, 25–105 and 6–20 individual/l, respectively. The phytoplankton abundance were influenced by different organic fertilizer and noticed higher in number by using chicken manure. Irregular relationship between phytoplankton abundance and water temperature was found. Phytoplankton showed positive relationship with DO. In this study 15 species of phytoplankton were identified under four groups namely Chlorophyta, Cyanophyta, Bacillariophyta and Euglenophyta. Chlorophyta (52%) was the dominant group in the aquarium. The findings of the present study will help to improve the management strategies of water quality, for estimating the productivity of phytoplankton and for the best use of organic fertilizer especially chicken manure. Keywords: Phytoplankton, organic fertilizers, glass aquariumCite this ArticleSharmin Rikta, Md. Sherazul Islam, Shammi Aktar, Abdulla-Al-Asif. Productivity of Phytoplankton by Using Different Organic Fertilizers in the Glass Aquarium. Research & Reviews: A Journal of Bioinformatics. 2019; 6(1): 25–37p.