Phytoplankton flora of Tanguar haor ecosystem in Bangladesh: Cyanophyta, Pyrrhophyta, Chrysophyta and Euglenophyta

Bhuiyan, Mah; Islam, Sams; Kowser, Abu; Islam, Md. Saiful; Kakoly, SA; Asaduzzaman, Khandoker; Khondker, Moniruzzaman

doi:10.3329/jbcbm.v5i1.42190

Cited by 2 publications

(3 citation statements)

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“…The latter compound was recorded >1.0 mg/l, except the Rauar Station of Tanguar Haor. Bhuiyan et al (2)(3)(4)(5) observed the mean water transparency 2.51 m, SRP 17.19 µg/l and chl-a 5.47 in Tanguar Haor (2)(3)(4)(5) , while the measurements carried out in the Hakaluki Haor during the fish kill event were: water transparency 1.24 m, SRP 12.50 µg/l and chl-a 38.05 µg/l. Tanguar Haor has a relatively deeper basin compared to Hakaluki and holding little clearer water, as it is evident by the data on Secchi Disc value and chl-a measured for both the Haors.…”

Section: Resultsmentioning

confidence: 98%

“…In this Haor Basin of Bangladesh, Tanguar Haor has been declared as an Ecologically Critical Area (ECA) by the Government of the People's Republic of Bangladesh and as a Ramsar Site by UNESCO in 1999. The physicochemical condition of this Haor from Rauar and Watch Tower Station were studied (2)(3)(4)(5) .Phytoplankton composition of at least 5 out of 10 algal divisions of this Haor were also worked out (2)(3)(4)(5) . Considering area, the largest haor ecosystem of Bangladesh named Hakaluki is situated in the districts of Moulvibazar and Sylhet.…”

Section: Introductionmentioning

confidence: 99%

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Plankton composition of Hakaluki Haor of Moulvibazar, Bangladesh

Bhuiyan

Mohid

Islam

et al. 2021

Dhaka Univ. J. Biol. Sci

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In the present study, physicochemical and biological variables related to the water quality of Hakaluki Haor were studied. Three study stations viz. Bakshimul, Jalabeel and Dudhai were investigated because of an event of mass scale of dead fish and other aquatic organisms were reported. The stations had water depths from 2.74 - 5.13 m and Secchi Disc Transparency were 0.74 - 1.91 m. The air and water temperature among the three stations ranged from 28.2 - 30.4°C and 21.8 - 28.8°C, respectively. TDS ranged from 35 - 42 mg/l, while the electric conductivity of water showed 40 - 50 μS/cm. SRP, nitrate and SRS ranged from 10.68 - 12.32 μg/l, 0.116 - 0.122 mg/l and, 16.08 - 35.42 mg/l, respectively. The concentration of DO was very poor which ranged from 2.8 - 5.4 mg/l. In all the three studied stations, the free CO2 concentration was 0.096 mg/l. Chlorophyll-a value was moderate in all the three stations (ranged within 34.67 and 40.60 μg/l). The phaeopigment concentration was low and ranged from 1.51- 8.72 μg/l among the studied stations. Concentration of ammonia was much higher (1.03 - 1.72 mg/l) than the standard value for Bangladesh (0.5 mg/l). From this analysis, it is observed that during fish kill event the concentration of ammonia was higher with low DO content which might have resulted because of the decomposition of upper foliar parts of the rice plant due to the sudden inundation. Gross α and β counts were found to be 0.01 and 0.10 Bq/l in the Haor water at the time of fish kill. From the planktonic community, 16 phytoplanktons from green algae, 14 euglenoids, 5 diatoms, 5 dinoflagellates and 12 zooplankton species were recorded. A shift in the pH of the Haor water from acidic to alkaline might have occurred during the last 3 decades. A detailed limnological study covering the climatic seasons of Bangladesh has been recommended to be carried out for Hakaluki Haor. Dhaka Univ. J. Biol. Sci. 30(1): 69-78, 2021 (January)

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Plankton composition of Hakaluki Haor of Moulvibazar, Bangladesh

Bhuiyan

Mohid

Islam

et al. 2021

Dhaka Univ. J. Biol. Sci

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“…Including the seasonal floodplain the total aquatic surface area in Bangladesh becomes 36,663 km 2 . A good diversity of plankton and aquatic macrophytes is present in those aquatic ecosystems leading to a substantial amount of freshwater fish production (Bhuiyan et al 2019a(Bhuiyan et al , b, 2021. The diversity of some rare fresh water phytoplankton from Bangladesh (with one new species) is Microcrocis granulata; Paulinella chromatophora; Aphanothece clathrata; Strombomonas acuminata var.…”

Section: Aquaticmentioning

confidence: 99%

Towards an Appraisal of Biodiversity in Bangladesh

Khondker

Bhuiyan

Bashar

2023

J. Biodivers. Conserv. Bioresour. Manag.

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In this paper, the concept of biodiversity has been presented on a historical perspective keeping the visions on Bangladesh via mentioning the primary supporting climatological and physiographic factors of the ecosystems along with their species composition. The total number of microbes, plant, and animal species has been estimated in the range of 10,606-14,913. The varieties of ecosystems present in Bangladesh belong to the broad categories, namely forest, agro-terrestrial, freshwater aquatic, as well as estuarine and marine. Forests cover nearly 17.5% of the total land of Bangladesh having specific categories like tropical wet evergreen and semi-evergreen, tropical moist deciduous, mangrove, freshwater swamp, and homestead forests. Dominant species belonging to those ecosystems were mentioned. The dimension of crop diversity in Bangladesh is very large, but the most common staple food comes from Oryza sativa, Triticum aestivum and Zea mays. The sources of biodiversity for the supply of vegetable and protein have been highlighted. Unique biodiversity in cases of freshwater phytoplankton and aquatic plants has been provided. Results from a case study on butterfly as their qualitative and quantitative biological population dynamics in 34 forest ecosystems of Bangladesh were presented and discussed. The establishment of an open ‘Butterfly Park’ in a National Park reveals that with due course of time the plant-butterfly-wildlife vertebrate species interaction increases with a concomitant increase in the biodiversity. Dominant plant and animal species together with their status as endemic, endangered, threatened, etc. in variously defined ecosystems of Bangladesh were highlighted. Besides, the ways of biodiversity conservation currently in practice in Bangladesh has been mentioned along with the future plans and programs to be implemented. Bangladesh holds a rich history in the starting of biodiversity teaching via developing curricular activities in different teaching institutions throughout the country. The origin and background of this activity was also highlighted. This review will help researchers to address biodiversity related questions on a scientific perspective. J. Biodivers. Conserv. Bioresour. Manag. 2023, 9(1): 79-100

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Phytoplankton flora of Tanguar haor ecosystem in Bangladesh: Cyanophyta, Pyrrhophyta, Chrysophyta and Euglenophyta

Cited by 2 publications

References 2 publications

Plankton composition of Hakaluki Haor of Moulvibazar, Bangladesh

Plankton composition of Hakaluki Haor of Moulvibazar, Bangladesh

Towards an Appraisal of Biodiversity in Bangladesh

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