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dc.creatorAlam, A.
dc.creatorM.G.Mustafa, M.G.
dc.creatorAzad, M.A.K.
dc.date.accessioned2018-11-06T10:18:52Z
dc.date.available2018-11-06T10:18:52Z
dc.date.issued2007
dc.identifierWF_744.pdf
dc.identifier.citationBangladesh Journal of Fisheries. Special Issue v. 30 pp. 177-188
dc.identifier.urihttps://hdl.handle.net/20.500.12348/1624
dc.description.abstractPhysiochemical studies on water and sediment quality and plankton diversity of Posna beel, Kalihati, Tangail were conducted during 2003-2005. Surface water temperature was minimum (16°C) during winter and maximum (33 °C) during summer. Water transparency varied from 25 cm in summer to 189 cm in winter. Other water quality parameters like pH (7.2-8.0), DO (6.6-9.6 mg/L), free CO2 (5-13 mg/L), alkalinity (28-51 mg/L), total solids (7-123 mg/L), BOD ((2.70-5.43 mg/L), COD (5.20-8.15 mg/L), total hardness (51-68 mg/L), NH3 (0.01-0.07 mg/L), NO3-N (0.15-0.48 mg/L) were found to be suitable for freshwater fishes. The beel sediment was rich in nutrient and contained a high amount of organic matter (3.84-6.25 %). Some essential compounds like iron (417-440 µg/g), manganese (23.93-55.63 µg/g), copper (8.0-11.63 µg/g), magnesium (1.83-2.56 meq/100 g) were also found to be high. A total of 48 genera of phytoplankton and 41 genera of zooplankton were recorded. Dinoflagellate bloom was observed throughout the study period. Shannon-Weiner biodiversity indices were found to be higher during monsoon for zooplankton while phytoplankton abundances showed no such specific relationship with season. The physicochemical and biological parameters indicate that the beel was eutrophic in nature.
dc.formatapplication/pdf
dc.languageEn
dc.publisherBangladesh Fisheries Research Institute
dc.sourceBangladesh Journal of Fisheries
dc.titleWater and sediment quality and plankton diversity of Posna beel, Tangail.
dc.typeJournal Article
dcterms.bibliographicCitationAlam, A.; M.G.Mustafa, M.G.; Azad, M.A.K. (2007). Water and sediment quality and plankton diversity of Posna beel, Tangail.. Bangladesh Journal of Fisheries. Special Issue v. 30 pp. 177-188
dc.description.versionPeer Review
cg.coverage.countryBangladesh
cg.coverage.regionSouth Asia
cg.identifier.worldfish744
cg.subject.agrovocbiodiversity
cg.subject.agrovocecology
cg.identifier.statusOpen access
cg.contribution.worldfishauthorGolam, M.
cg.description.themeMiscellaneous


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