Assessment of the abundance and species composition of Phytoplankton of Moiur river, Khulna

Rahi, Lifat; Mahfuj, Sarower E; Islam, SM Majharul; Islam, Sheikh S; Sabbir, Wasim

doi:10.3329/jbs.v21i0.22516

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…It was observed that TDS was negatively correlated with total phytoplankton, all algal groups and species diversity. This nding was agreed with previous studies that showed the same negative correlation between phytoplankton population and TDS concentration (Rahi et al 2013;Elshobary et al 2020), illustrating the negative effect of inorganic remains materials of TDS on the phytoplankton growth. While Phytoplankton density positively correlated with nutrient content such as Nitrate and silicate.…”

Section: Phytoplankton Abundance In Relation To Some Physico-chemicalsupporting

confidence: 93%

Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Elshobary

Attiah²,

et al. 2021

Preprint

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Relative effects of spatio-seasonal variations on the quantitative and qualitative status of phytoplankton in 20 sampling locations of Temsah Lake were examined during winter and summer 2018. The study reveals that the population structure consisted of 105 species from 69 genera, with an annual average of 924155 cell/L. Bacillariophyceae formed the most dominant group with 42.45% of total phytoplankton with an average of 372379 cell/L. Navicula creptocephala was the most abundant species representing 19.16% of total diatoms and 7.78% of the whole standing crop with an annual average of 376879 cell/L. The highest phytoplankton abundance was in the Northern locations. Phytoplankton density showed a negative correlation of pH, temperature and TDS and positively correlated with nutrient content such as nitrate and silicate. In general, summer showed high indices value compared to winter and the diversity index in the current study ranged in moderate pollution range. The polluted state of the aquatic ecosystem in El-Temsah Lake during summer is comparatively higher than winter during the study period. Palmer’s and diversity indices showed that Northern sites were the most flourishing and polluted sites. The study also recorded a number of tolerate algae (13 genera and 8 species), which can be used as an indicator for different degrees of organic pollution. Genus and species Palmer’s Index scores of the northern site were in the range of ≥20 during summer, indicating most of the sampling locations showed probable to confirmed high level of organic pollution.

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Section: Phytoplankton Abundance In Relation To Some Physico-chemicalsupporting

confidence: 93%

Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Elshobary

Attiah²,

et al. 2021

Preprint

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“…The Indian major carp Rohu ( Labeo rohita ) is an important freshwater aquaculture species and a major species in inland open water systems across the entire Indian Subcontinent, including Bangladesh (Rahi et al., 2013; Shah et al., 2011; Sabbir et al., 2017). This single species contributes ≈8% of the total freshwater fish production in Bangladesh (Ali et al., 2015; Department of Fisheries [DOF], 2021b).…”

Section: Introductionmentioning

confidence: 99%

Effects of ammonia on the cellular, physiological, biochemical and genetic traits of Indian major carp (Labeo rohita) fry in artisanal Bangladeshi aquaculture

Zeehad,

Mridul,

Chakrobortty

et al. 2024

Aquaculture Fish & Fisheries

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The major carp Rohu (Labeo rohita) is a prime freshwater aquaculture species across the Indian subcontinent that faces various production‐related issues associated with water quality parameters. The present study examined the effects of three different doses of NH3 (T1 = 1 mg/L, T2 = 2 mg/L and T3 = 3 mg/L) on cellular (gill ultrastructure), physiological (growth and oxygen consumption rate), biochemical (blood cell counts, blood cortisol and glucose levels) and genetic (expression of five genes involved in growth, immunity and metabolism) traits of Rohu. The experimental ammonia dose significantly affected the tested biological parameters (p < 0.05), causing moderate‐to‐severe gill tissue damage. In general, compared with those in the control group, 16%–25% slower growth, 12%–30% lower survival and 15%–56% higher O2 consumption were observed for the treatment groups. Blood glucose and cortisol levels increased with increasing ammonia levels, but blood cell counts decreased. The five selected candidate genes showed a differential expression pattern in response to the ammonia dose, with higher expression in the control group and lower expression in the treatment groups. The results indicate that different concentrations of ammonia impose stress on different orders of magnitude in the experimental fishes. Therefore, it can be inferred that the presence of ammonia in aquatic/farming environments can adversely affect production performance; the severity of damage during production depends on the concentration of ammonia. Therefore, maintaining no or minimum ammonia levels in farming environments is urgently needed for sustainable aquaculture production of Rohu.

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“…Several studies on physicochemical parameters and phytoplankton community of other rivers are conducted, including the Meghna River (Ahmed 2003, Ahsan et al 2012; Moiur river (Rahi et al 2015); Dhaleshwari river (Islam et al 2012); Karnafully river (Sarwar et al 2010); Jamuna River (Uddin et al, 2014). Some brief studies on physicochemical parameters and phytoplankton community of the Halda River (Parta andAzadi 1987, Parvez et al 2019;Nahid et al 2020) were done, but no descriptive and vertical abundance of phytoplankton was performed.…”

Section: Introductionsmentioning

confidence: 99%

Impact of environmental stressors on the phytoplankton communities to assess the River Halda, Bangladesh

HOSSAIN¹,

SARKER²,

SARKER³

et al. 2022

Bangladesh J. Fish.

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Halda is a 98 km-long tidal freshwater river of Bangladesh, which has a unique feature since it is the only natural breeding ground and the sole source of fertilized eggs of Indian Major Carps globally. The present study firstly summarizes the impact of environmental stressors to understand phytoplankton abundance, community, and their diversity in Halda River, Bangladesh. Environmental data as seasons (Winter, Monsoon), water depths, temperature, pH, Salinity, dissolved oxygen, and nutrients were collected and analyzed from the Halda River in January 2019 and August, 2020. Thirty-four phytoplankton genera, comprising five classes, were identified from the Halda River, Bangladesh. A two-way ANOVA was performed to analyze the effect of Monsoon and Winter on the physicochemical and biological parameters. It revealed that there was a statistically significant ((F9, 160)= 34.999, p= 0.0) interaction between Monsoon and Winter on the observed parameters. The water temperature (F 125.31, Fcrit 4.130, p= 0.0) and nutrients (F 11.118, Fcrit 2.322, p= 0.0) revealed significant change in the phytoplankton concentrations in the Halda River. As of the temperature and nutrients, water depths also significantly (F 1.790, Fcrit 1.719, p= 0.0) affect the phytoplankton communities in the Halda River showing the highest and lowest cell density in the surface and bottom water, respectively.

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Assessment of the abundance and species composition of Phytoplankton of Moiur river, Khulna

Cited by 7 publications

References 6 publications

Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Effects of ammonia on the cellular, physiological, biochemical and genetic traits of Indian major carp (Labeo rohita) fry in artisanal Bangladeshi aquaculture

Impact of environmental stressors on the phytoplankton communities to assess the River Halda, Bangladesh

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