Phytoplankton primary production in a mesotrophic pond in sub-tropical Bangladesh

Khondker, Moniruzzaman; Kabir, Md. Ahsan

doi:10.1007/bf02530702

Cited by 20 publications

(21 citation statements)

References 18 publications

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“…Internal comparisons of our results from individual combinations ('combination 1' and 'combination 2', Fig. 3) showed relative differences that were similar to that from Khondker & Kabir (1995). Depending on the combination ('1' or '2') relative differences in the net primary productivity ranged from a factor of ∼1.2 (site 1) to 7.8 (site 2) in Cima Lake system.…”

Section: Carbon Metabolism -Variations In the Lacustrine Systemsupporting

confidence: 61%

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Dissolved inorganic carbon and metabolism of an eutrophic lacustrine system: variations from a 36-hours study

Pedrosa

Rezende

2000

Rev. Bras. Biol.

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Based on variations of pelagial dissolved inorganic carbon (DIC) concentrations this article provides estimations of net primary productivity and net mineralization -net carbon metabolism -in Cima Lake (Rio de Janeiro State). DIC concentrations varied from 203 to 773 µmol L -1 and %CO 2(aq) (saturation) from 339 to 4,901. Net carbon metabolism per light/dark periods from the 36 hours of study ranged, respectively, from -556 to 503 mmol DIC m -2 12 h -1 . Marked variations in daily net carbon metabolism of the lake were also observed. The values ranged from -25 to -194 mmol DIC m -2 day -1 . The findings were discussed as indicators of dynamic biological behavior toward production or mineralization of organic matter in the system. And, the system seemed to shift from heterotrophy to autotrophy. Additionally, in the light of our results we emphasize the axial influence of both sampling strategy and treatment of scientific data for a characterization/interpretation of aquatic systems' metabolism.Key words: DIC, carbon metabolism, net primary productivity, mineralization, eutrophic lake. Os resultados são discutidos como indicadores de um comportamento bioló-gico dinâmico direcionado à produção ou mineralização da matéria orgânica no sistema. E o sistema pareceu deslocar-se de uma função heterotrófica para autotrófica. Em adição, orientados pelos resultados obtidos, enfatizamos a importância axial da estratégia de amostragem e do tratamento científico de dados obtidos para a caracterização/interpretação do metabolismo de sistemas aquáticos. RESUMOPalavras-chave: CID, metabolismo do carbono, produtividade primária líquida, mineralização, lagoa eutrófica.Rev. Brasil. Biol., 60(4): 607-614 608 PEDROSA, P. and REZENDE, C. E.

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Section: Carbon Metabolism -Variations In the Lacustrine Systemsupporting

confidence: 61%

“…Khondker & Kabir (1995) found primary productivity between 1.6 and 6.8 g C m -2 day -1 in a mesotrophic pond in Bangladesh from an annual study. Internal comparisons of our results from individual combinations ('combination 1' and 'combination 2', Fig.…”

Section: Carbon Metabolism -Variations In the Lacustrine Systemmentioning

confidence: 91%

Dissolved inorganic carbon and metabolism of an eutrophic lacustrine system: variations from a 36-hours study

Pedrosa

Rezende

2000

Rev. Bras. Biol.

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“…of chlorophyll-a was found to be similar to another subtropical pond with emergent species (Khondker & Kabir 1995) while the value was much lower when compared to a subtropical pond with all growth forms (Kunii & Maeda 1982). In turbid tropical ponds without aquatic vegetation wide fluctuations in chlorophyll-a values have been reported (Jana & Kundu 1993).…”

Section: Discussionmentioning

confidence: 68%

“…However, the nature of occurrence of diverse aquatic plant species in tropical and subtropical ponds have been found to show a certain degree of interassociation based on their growth forms. The most common association was the formation of pure bed/ mixture of two to three species of invasive free-floating plants (Munawar 1970, Rai & Dutta Munshi 1979, Philipose et al 1970, Varshney & Singh 1976) with one to three species of emergent vegetation (Khondker & Kabir 1995, Ghosh et al 1993, Ghosh 2005. The other type was the occurrence of mixed communities of submerged flora (two to three species) together with floating-leaved (one to two species) and emergent (one to four species) forms (Philipose et al 1970, Gopal 1990.…”

Section: Discussionmentioning

confidence: 99%

Presence of tropical hydrophytes in relation to limnological parameters - a study of two freshwater ponds in Kolkata, India

Mukhopadhyay

Dewanji

2005

Ann. Limnol. - Int. J. Lim.

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The presence of different species of hydrophytes was investigated in relation to Secchi disk visibility, pH, dissolved oxygen, electrical conductivity, total Kjeldahl nitrogen, total phosphorus and chlorophyll-a concentration in two tropical ponds nearby Kolkata, India, during a three years period (June 1999 to May 2002. The dominant flora in the ponds namely, Alternanthera philoxeroides, Nymphoides hydrophylla, Lemna aequinoctialis, and Vallisneria spiralis were found to subsist over a wide amplitude of nutrient levels thereby showing their adaptability to highly eutrophic ecosystems, a common feature of the tropics. However, the presence of some minor species could be associated with a narrow range of specific limnological variables.

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“…Dhaka Metropolis, though supports a number of closed water bodies yet water quality in most of them are not acceptable because of the enhanced rate of eutrophication. Assessment on the rate of planktonic primary productivity in the water bodies of Dhaka Metropolis is limited (Khondker et al 1988, Khondker and Parveen 1993, Khondker and Kabir 1995, Sultana and Khondker 2009). Mirpur Jheel has already been designated as a eutrophic water body and information on its biological and physicochemical water quality has already been published (Afroze and Khondker 1995, 1996, Khondker et al 2011.…”

Section: Introductionmentioning

confidence: 99%

Planktonic primary productivity of a eutrophic water body of Dhaka Metropolis, Bangladesh

2013

Self Cite

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Dynamics of phytoplankton primary productivity were determined in a eutrophic water body of Dhaka Metropolis fortnightly for one year. The mean value of daily rate of primary productivity was 10.05 gC/m 2 /d and annual sum of primary productivity was estimated 3669.5 gC/m 2 /y. The yearly mean value of conductivity, pH, alkalinity, SRP and SRS were 486.66 µS/cm, 7.21, 4.02 meq/l, 0.75 mg/l and 49.75 mg/l, respectively which indicated the intensity of contamination from the catchment. Significant correlations were obtained among the variables (day length, irradiance, water temperature and DO) relating to primary productivity. "Green soup" like algal bloom was found to occur on most occasions. The productivity was confined to the upper few centimeter depth of the water indicating a typical eutrophic nature of the water body.

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Phytoplankton primary production in a mesotrophic pond in sub-tropical Bangladesh

Cited by 20 publications

References 18 publications

Dissolved inorganic carbon and metabolism of an eutrophic lacustrine system: variations from a 36-hours study

Dissolved inorganic carbon and metabolism of an eutrophic lacustrine system: variations from a 36-hours study

Presence of tropical hydrophytes in relation to limnological parameters - a study of two freshwater ponds in Kolkata, India

Planktonic primary productivity of a eutrophic water body of Dhaka Metropolis, Bangladesh

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