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Pakistan Journal of Biological Sciences
  Year: 2007 | Volume: 10 | Issue: 6 | Page No.: 868-873
DOI: 10.3923/pjbs.2007.868.873
A Preliminary Observation on Water Quality and Plankton of an Earthen Fish Pond in Bangladesh: Recommendations for Future Studies
Md. Yeamin Hossain, Saleha Jasmine, Abu Hanif Md. Ibrahim, Zoarder Faruque Ahmed, Jun Ohtomi, Bernerd Fulanda, Momtaz Begum, Abdullahil Mamun, Mohamed A.H. El-Kady and Md. Abdul Wahab

Abstract:
The present study provides a characterization of water quality and plankton samples in earthen fish pond in Rajshahi, Bangladesh. Sampling was done over a period of six months, running from October, 2004 through March, 2005. All the water quality parameters were within the optimal ranges for plankton productivity. Temperatures varied from 19.75 to 27.25°C; transparency, 24.75-29.50 cm; pH, 6.62-7.85; Dissolved Oxygen (DO), 3.87-5.85 mg L-1; free CO2, 5.25-7.25 mg L-1 and bicarbonate (HCO3) alkalinity, 81.25-147.5 mg L-1. Analyses of plankton samples recorded a total of 5 classes phytoplankton viz.; Bacillariophyceae, Chlorophyceae, Cyanophyceae, Dinophyceae, Euglenophyceae and 2 classes of zooplankton; Crustacea and Rotifera. The phytoplankton population was comprised of 17 genera belonging to Cyanophyceae (5 classes, 34.47%), Bacillariophyceae (3, 13.87%), Cyanophyceae (3, 34.48%), Euglenophyceae (3, 10.68%) and 1 to Dinophyceae (6.50%). The zooplankton population consisted of 10 genera belonging to Rotifera (4, 40.13%) and Crustacea (6, 59.87%). Phytoplankton and zooplankton abundance varied from 60800 to 239400 units/1 and 7620 to12160 units/1, respectively. It is concluded that the phytoplankton groups provide the main support for earthen pond aquaculture in the pond compared to zooplankton classes. The information provides for more research to compare water quality and pond plankton characteristics in earthen aquaculture systems with and without fish stocking. Further studies on the seasonal changes of water quality parameters and its effects on plankton production in the fish ponds and all year extended monitoring is recommended in future studies.
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COMMENTS
19 March, 2022
Saleh Ahmed Sujon:
It is a nice and effective paper for the researchers freshers
 
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