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The Effects of Physico-chemical Parameters on Plankton Distribution in Poultry Manure and Artificial Formulated Feed Treated Fish Ponds, Noakhali, Bangladesh

Najmus Sakib Khan
Department of Oceanography, Noakhali Science & Technology University, Noakhali-3814, Bangladesh

Jaber Bin Abdul Bari
Department of Oceanography, Noakhali Science & Technology University, Noakhali-3814, Banglades

Abstract/ Executive Summary:

The present study was carried out in two differently treated fish ponds. One of the sampling ponds was treated with poultry manure (Pond A) and another with artificial formulated fishfeed (Pond B). Water samples were collected weekly (five weeks) from 19 April 2019 to 17 May 2019 for water Physico-chemical parameters and plankton analysis. Water physicochemical parameters specifically temperature, PH, transparency, total suspended solids, dissolved oxygen, ammonia, total alkalinity, free CO2were determined during the study period in two fish ponds. The density and diversity of plankton in fish ponds were also evaluated in this conducted study. A total of four classes of phytoplankton namely Chlorophyta, Bacillariophyta, Cyanophyta and Euglena were identified. Moreover, a total of four classes of zooplankton as Crustacea, Cladocera, Copepode and Rotifera were also recognized. Additionally, Chlorophyta and Rotifera found dominance through all sampling periods in two sampling ponds. The lowest total phytoplankton (Pond A: 8.49×10⁴±7.4×10²ind/l, Pond B: 1.5×10⁵±2.2×10³ind/l) and highest total zooplankton (Pond A: 5.65×10⁴±2.2×10³ind/l, Pond B: 8.77×10⁴±2.6×10³ind/l) among all sampling periods were recorded when cyclone Fani stroke over Bangladesh. The effects of physicochemical parameters on phytoplankton and zooplankton abundance in two different feed treated ponds were also reveled in this study. The total phytoplankton showed positive relation (p<0.05) with dissolved oxygen and negative relation (p<0.01) with transparency. Furthermore, total zooplankton showed positive relation (p<0.05) with water temperature.

Keywords: Phytoplankton, Zooplankton, Poultry manure, Fish feed, Pond, Cyclone Fani

Location: Noakhali, Bangladesh

Start Date:

End Date:

Program Area: Resource Development and Management

Commodity: Fish

Objectives:

This study aimed at estimating the distribution of phytoplankton and zooplankton in poultry manure and artificial formulated feed treated fish ponds. This conducted study also focused to determine physicochemical water parameters. Moreover, the present study made a relationship between the distribution of plankton and physicochemical parameters.

Methodology:

2.1 Sampling site: The study was conducted in two fish (Pangasius pangasius Hamilton, 1822) ponds in Bismillah Agro Production located in Sonapur, Noakhali district. Total five weeks from August 2019 to June 2019 were spent for sampling. Pond A (110 decimal) and Pond B (100 decimal) were treated with poultry feed (150 kg/day) and commercial feed (120 kg/day) respectively. There are no other water sources except ground and rainwater for these ponds. These sampling ponds were maintained by lime if needed. 2.2 Plankton collection and estimation: Planktons were collected through plankton net (mesh size: 20 μm) and preserved in 7% formalin on the sampling site. A light binocular microscope (Labomed, model: CXL-110446002, 9135002) was used at 16×10 and 16×40 magnification to identify phytoplankton and zooplankton. Furthermore, a Sedge wick-Rafter counting cell (S-R cell) was used for quantitative plankton analysis. The plankton density was determined by the formula [20].N= (A×1000×C)/ (V×F×L)Where N= Number of plankton/ liter in collected sample water A= Total number of counted plankton C= Concentrate volume of final sample water in mlV= Volume in cubic mm of a field F= Number of fields countedL= Volume of collected sample water in liter. The phytoplankton and zooplankton were identified up to the genus level and determined by. 2.3 Water quality analysis. In conducted study, environmental variables (temperature, P^H, dissolved oxygen, ammonia, total suspended solids, total alkalinity, free CO2and transparency) were recorded weekly in both sampling ponds. Water temperature (°C), P^H and transparency (cm) were measured directly on sampling spot with mercury bulb thermometer, P^Hmeter (HANNA-HI96107) and secchi disc respectively. Dissolved oxygen (mg/l), total alkalinity (mg/l) and free CO₂ (mg/l), ammonia (mg/l) and total suspended solids (mg/l) were determined by using guidelines from the American Public Health Association. 2.4 Statistical analysis: Statistical Package for the Social Sciences (SPSS, Version 20) and Microsoft EXCEL were used for the analysis of obtained data using ANOVA (One-way analysis of variance) and linear regression.

Source of Information: International Journal of Fisheries and Aquatic Studies 2019; 7(5): 01-07

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

This study provides a preliminary description of the phytoplankton and zooplankton distribution of poultry manure and artificial formulated feed treated fish ponds. Chlorophyta and Rotifer are the dominant groups of phytoplankton and zooplankton respectively in both fish ponds. The effects of physicochemical parameters on phytoplankton and zooplankton groups also determined in this study. This study is useful to further plankton and water quality research in poultry manure and formulated fish feed treated pond ecosystem.

Knowledge Management: Journal