Physicochemical aspects and phytoplankton of the river Shitalakhya receiving pharmaceutical effluents

Authors

  • ZN Tahmida Begum Department of Botany, University of Dhaka, Dhaka
  • Dilara Khanam Department of Botany, University of Dhaka, Dhaka

DOI:

https://doi.org/10.3329/bjb.v38i1.5127

Keywords:

Phytoplankton, Pharmaceutical effluents, Shitalakhya River, Bangladesh

Abstract

Phytoplankton from a part of the Shitalakhya river receiving effluents from a pharmaceutical industry have been studied. A total of 78 taxa were identified of which 14 belonged to Cyanophyceae, 11 Chlorophyceae, 20 Euglenophyceae and 33 Bacillariophyceae. The water body was mostly alkaline (6.6 - 8.0) and showed a wide range of variation in conductivity (135 - 4768 μS/cm), DO (anoxia to 15 mg/l), free- CO2 (3 - 29 mg/l), bicarbonate alkalinity (49 - 355 mg/l), BOD (8 - 1800 mg/l) at different locations. Pharmaceutical effluents appeared to affect diversity of phytoplankton. Three diatoms namely Fragilaria brevistriata Grun., F. construens (Ehr.) Grun. and Navicula oblonga Kütz. present in the area, are described as new for Bangladesh.

Keywords: Phytoplankton; Pharmaceutical effluents; Shitalakhya River; Bangladesh

DOI: 10.3329/bjb.v38i1.5127

Bangladesh J. Bot. 38(1): 77-85, 2009 (June)

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How to Cite

Begum, Z. T., & Khanam, D. (2010). Physicochemical aspects and phytoplankton of the river Shitalakhya receiving pharmaceutical effluents. Bangladesh Journal of Botany, 38(1), 77–85. https://doi.org/10.3329/bjb.v38i1.5127

Issue

Vol. 38 No. 1 (2009)

Section

Articles

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© Bangladesh Botanical Society

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