Physico-chemical attributes of water of Hakaluki Haor, Sylhet, Bangladesh

Islam, Tajul; Rahman, Mohammad Mijanur; Mahmud, Hassan

doi:10.3329/jujbs.v3i2.28287

Cited by 11 publications

(17 citation statements)

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“…PO 4 of the water samples ranged from 0.022 to 0.078 mg L −1 . PO 4 value was about 5.58 mg L −1 at pre-monsoon (March-May) in Hakaluki haor (Islam et al, 2014). It is apparent from the above value of water sample, that the water was suitable for fish production and other aquatic organisms at Tanguar haor wetland.…”

Section: Resultsmentioning

confidence: 84%

“…NO 3 of the water samples ranged from 0.763 to 1.769 mg L −1 . Islam et al (2014) found the average NO 3 value about 15.6 mg L −1 at Premonsoon (March-May) in Hakaluki haor. PO 4 of the water samples ranged from 0.022 to 0.078 mg L −1 .…”

Section: Resultsmentioning

confidence: 89%

“…Wetlands are the world's most productive environment that supplies a broad collection of profit and keeping ecological balance of ecosystem (RCS, 2013;Islam et al, 2014) as well as essential to human wellbeing (Barbier et al, 1997;MEA, 2005). The significance of wetland is universal like ecosystem services.…”

Section: Introductionmentioning

confidence: 99%

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Status and economic valuation of ecosystem services of Tanguar haor: A wetland of Bangladesh

Solayman

Baten

Khan

2018

J Bangladesh Agric Univ

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Tanguar haor wetland is one of the listed Ramsar sites enrich with biodiversity variety and provides several ecosystem services with significant contribution to the national economy of Bangladesh. But these services were decreasing day by day due to natural and anthropogenic activities. The purposes of this study were to identify the utilized ecosystem services by communities, economic values of utilized ecosystem services and the basic reasons for depleting of ecosystem services. Data were collected through baseline survey, checklists, face to face questionnaire survey and focus group discussion (FGD) from 120 residential respondents and 50 tourist respondents by accepting random sampling techniques during November, 2016 to September, 2017. Physiochemical characteristics of the water were determined where the mean temperature and pH were 28.26°C and 7.72 respectively. The highest TDS, EC, DO, NO3 and PO4 values were 1020 (mg L−1), 1460 (μS cm−1), 8.56 (mg L−1), 1.769 (mg L−1) and 0.078 (mg L−1), respectively. Commonly utilized ecosystem services were crops, vegetables, fuel, fresh water, fishes and migratory birds, climate regulation, water purification, natural hazards protection, aesthetic, social relations, recreation & tourism, health benefit, primary production, nutrient cycling, water cycling habitats for species and provision of habitat etc. Market Value Method (MVM) and Contingent Value Method (CVM) were applied to measure the economic value of Tanguar haor wetland services. DPSIR framework and Impact Matrix (IM) were applied for conceptual analysis to identify the effects on ecosystem services. Total economic value of 39 ecosystem services of Tanguar haor was estimated at 174039980 BDT year−1. Mismanagement of biodiversity, over exploitation, sedimentation of haor, climate change, illegal hunting, land use changes and habitat changes were the responsible factors for depleting ecosystem services. The impact factor (4.161) was identified by natural and anthropogenic factors on ecosystem services. There have a vast prospect of the Tanguar haor wetland services for near communities. Finally the research suggested several sustainable management approaches which have the potentiality to protect the services of the wetland.J. Bangladesh Agril. Univ. 16(2): 237-243, August 2018

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 89%

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Status and economic valuation of ecosystem services of Tanguar haor: A wetland of Bangladesh

Solayman

Baten

Khan

2018

J Bangladesh Agric Univ

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“…The radioactivity levels of the sample water were analyzed and the gross α and β were found to be 0.01 and 0.10 Bq/l. For Hakaluki Haor, mean water temperature 26.8°C, Secchi depth 0.43 m, TDS 68.68 mg/l, conductivity 141.42 μS/cm, pH 6.44 and DO 4.90 mg/l were reported (7) . This indicates low pH turbid water having a relatively high TDS and electrical conductivity of Hakaluki Haor.…”

Section: Resultsmentioning

confidence: 99%

“…The first hydrobiological research on Hakaluki Haor was carried out where a list of phytoplankton, benthic algae and macrophytes growing in the pelagic and littoral area of the Haor were published (6) . Physicochemical attributes of Hakaluki Haor also studied (7) . In 2017, an untimely flash flood occurred in April causing inundation of vast areas of its rice fields and an instant mortality of fishes, aquatic birds, ducks, reptiles, etc.…”

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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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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Wetland Entitlement and Sustainable Livelihood of Local Users in Bangladesh: A Case Study of Hakaluki Haor Communities

Ahmed

Haque²

2022

Environmental Management

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Physico-chemical attributes of water of Hakaluki Haor, Sylhet, Bangladesh

Cited by 11 publications

References 1 publication

Status and economic valuation of ecosystem services of Tanguar haor: A wetland of Bangladesh

Status and economic valuation of ecosystem services of Tanguar haor: A wetland of Bangladesh

Plankton composition of Hakaluki Haor of Moulvibazar, Bangladesh

Wetland Entitlement and Sustainable Livelihood of Local Users in Bangladesh: A Case Study of Hakaluki Haor Communities

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