Asian-Australasian Journal of Bioscience and Biotechnology Assessment of physicochemical conditions and plankton populations of the river (original) (raw)
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Assessment of physicochemical conditions and plankton populations of the river Padma, Bangladesh
2016
The study was conducted to investigate the physicochemical and biological aspects of the river Padma in three sampling stations viz Mawa, Godagari and Paksi from January 2014 to December 2014. Ten physical and nine chemical parameters of water and plankton community both phytoplankton and zooplankton of this aforesaid area were studied. Physicochemical parameters of water such as temperature, pH, hardness, alkalinity, dissolve oxygen (DO), free carbon dioxide (CO2), total dissolve solids (TDS), turbidity, biological oxygen demand (BOD) and chemical oxygen demand (COD) were studied. Maximum water depth 23.9±6.5 ft was recorded from Paksi and lowest water depth (19.7±6.3 ft) was recorded in Godagari. The highest air temperature was found 32.5±8.90C in Paksi and lowest temperature was found 28.3±3.90C in Godagari. Water temperature was found lowest (25.7±4.10C) in Godagari and highest (29.3±7.90C) in Paksi. Transparency was found lowest in Godagari 36.4±16.4 cm and highest 45.9±20.5 cm in Paksi. Conductivity was found highest in 390.2±411 (μs/cm) in Godagari. Turbidity was found lowest 16.5±36.3 in Paksi. TDS was found highest 190.4±196.9 mg/l in Godagari. Dissolve oxygen content in Mawa was found lowest 6.71±1.1 mg/l. pH was ranging from 8.0±2.4 in Mawa to 8.2±0.2 in Godagari among the three sampling spots of Padma river. Total alkalinity was found lowest 98.2±36.7 mg/l in Paksi. Total hardness was found lowest 83.4±45.9 mg/l in Godagari. BOD (B) was found highest 6.2±1.6 mg/l in Mawa. COD was found lowest 13.1±8.6 mg/l in Paksi. Total plankton density was found 2100±695.4 (Nos. /l) in Mawa, 2350±670.2 (Nos./l) in Godagari and 2280±710.5 (Nos./l) in paksi respectively. Total sixty genera under six classes of phytoplankton were observed and twenty two genera of zooplankton under four families were identified. Chlorophyceae, Bacillariophyceae, Cyanophyceae, Xanthophyceae, Euglenophyceae and Dinophyceae were the major groups of phytoplankton and Rotifera, Copepod and Cladocera were the major groups of zooplankton during the study period. The mean contribution of phytoplankton was more than 91.33% in all three rivers and zooplankton contributed the rest.
Plankton refers to plants and animals that drift with the ocean currents and fresh river water. they habitants in the open waters of the sea and fresh river water. Zooplankton (from Greek zoon, or animal) are Small protozoans or metazoans (e.g. crustaceans and other animals) that feed on other plankton and telonemia. Some of the eggs and larvae of larger animals, such as fish, crustaceans and annelids, are included in Zooplankton. Physico-chemical parameters are very important factors that play a significant role in river zooplankton diversity and fluctuation. We evaluated impact of Abiotic factor on plankton diversity during pre, middle and post winter analysis of Hukal River.
Physicochemical properties and plankton composition of the river Meghna, Bangladesh
2016
The present study was conducted to assess the physicochemical properties and plankton composition of water from the river Meghna (Shatnol to Chor Alexander) in thirteen (13) sampling spots during the period of July 2014 to June 2015. Ten (three were physical and seven were chemical) physicochemical parameters of water viz temperature (air and water), transparency, dissolved oxygen (DO), free carbon dioxide (CO 2), Conductivity, pH, total hardness, total alkalinity and ammonia (NH 3), plankton community of both phytoplankton and zooplanktons were studied in aforesaid 13 sampling spots of the river Meghna. Maximum air temperature was recorded 37°C at Ananda Bazar. Maximum water temperature was recorded 30°C at Kaligonj, Chor Ludhua and Chor Alexander area of the river Meghna. Transparency was found minimum 12 cm at Chor Ludhua and maximum 75 cm at Horina Ghat. The concentration of dissolved oxygen was found maximum at Chor Voirabi and Horina Ghat 7.3 mg/l and was found minimum at Kaligonj 3.5 mg/l. Free CO 2 was found highest at Kaligonj 17 mg/l and lowest at Horina Ghat 5 mg/l. pH was found ranged from almost neutral to alkaline (Minimum 7.2 to Maximum 9). Total hardness was found highest at Chor Alexander 802 mg/l and lowest at Eklaspur 35 mg/l. Total alkalinity was found highest at Chor Alexander 145 mg/l and found minimum at Madrasa Ghat and Hizla 29 mg/l. Conductivity was found highest at Chor Alexander and Chor Ludhua 1000 µs/cm. Ammonia concentration was found ranged from 0.00 to 0.03mg/l. The mean contribution of phytoplankton was about 90.5% of the total planktonic organisms and zooplankton contributed the rest. The major groups of phytoplankton were found Bacillariophyceae, Chlorophyceae, Cyanophyceae, Dinophyceae, Euglenophyceae, Myxophyceae and Xanthophyceae. Total 9 genera of zooplankton were identified from four families namely Rotifera with 2 genera, Cladocera with 3 genera, Copepoda with 3 genera and Ostracoda with 1 genus from the selected sampling spots.
The present investigation deals with the phytoplankton abundance with respect to Physico-chemical properties of Tapi during March-2015 to August-2015. For the given purpose Galteshwar, a riverine zone of Tapi was selected. The water samples and plankton samples were collected, preserved and analysed in laboratory as per method described in APHA (2005). Monthly variation of water quality parameters like Temperature, pH, Chloride, Dissolved Oxygen, Biological Oxygen Demand and Chemical Oxygen Demand were investigated. The investigation shows the organisms of family Bacillariophyceae (Diatoms) were dominating on Chlorophyceae followed by Cyanophyceae. The range of phytoplankton between 282-564unit/L was noted. Statistical correlation coefficient analyses were used to interrelate to the Physico-chemical parameters with phytoplankton density.
The present study was conducted to investigate the relationship between plankton production and water quality parameters in lentic (two ponds: one with small area and another with large area) and lotic (Padma River) water bodies during post-monsoon season in the northwestern Bangladesh. Sampling was done fortnightly from September 2012 to November 2012. Results of the present study revealed significant difference in water transparency (Kruskal-Wallis test, P=0.523), dissolved oxygen (Kruskal- Wallis test, P = 0.049) and free carbon dioxide (Kruskal-wallis test, P = 0.091) among three investigated water bodies during post-monsoon season. However, there was no significant differences noted for water temperature (Kruskal-Wallis test, P = 0.751), pH (Kruskal-Wallis test, P = 0.172) and total alkalinity (Kruskal- Wallis test, P = 0.535) among the studied water bodies. Microscopic investigation suggested that, in the Padma River, Nauplius was the most dominant genus followed by Cyclops, Daphnia, Spirogyra, Chlorella, Microcystis, Navicula and Euglena. But in the small pond, Spirogyra was the most dominant genus followed by Nauplius, Daphnia, Cyclops, Chlorella, Microcystis, Navicula and Euglena, while both Daphnia and Nauplius were the most dominant genus followed by Spirogyra, Cyclops, Chlorella, Navicula, Microcystis and Euglena in the large pond. Although plankton production was not strongly correlated with temperature, transparency, pH and alkalinity in both Padma River and small pond but significant correlation was calculated among plankton production and dissolved oxygen and free carbon dioxide in these water bodies. However, in the large pond, plankton production was strongly correlated with transparency, dissolved oxygen and free carbon dioxide. The present study will provide an important basis to assess the fish production potentialities and to formulate sustainable aquaculture practices in man-made habitats and fishery management policies in the Padma River and nearby aquatic ecosystems.
Plankton Diversity and Abundance River Mahanadi At Cuttack
Imnnovation The Research Concept ISSN: 2456–5474, 2021
Diversity and abundance of various phyto-and zooplanktons were studied at three different sites M1, M2and M3 in the river Mahanadi at Cuttack in 2019 and 2020. Among Phytoplanktons 23 species of Chlorophyceae, 8 species of Cyanophyceae and 11 species of Bacillariophyceae were identified from three sampling sites. On the other hand among Zooplanktons, 11 species of protozoa 10 speceis of rotifer, 7 species of cladocera and four species of Copepod have been identified. Standing stock (n/p) and percentage composition of both phytoplanktons and zooplanktons show a great deal of variations in different seasons in the river system.
Present study was undertaken to assess the spatial and temporal distribution of phytoplanktons with respect to the changes in various physico-chemical parameters of Dongarwada ghat of river Narmada Madhya Pradesh. The study was carried for a year from March 2010 to February 2011.The results revealed presence of total 27 taxa of phytoplanktons belonging to 4 families were found in order of Chlorophyceae (47%) >Cyanophyceae (27%) >Bacillariophyceae (23%)>Euglenophyceae (3%).Diversity parameters Shannon index ranged from 1.092-0.37, Simpson index from 0.6622-0.6202, evenness diversity index from 0.9932 -0.7288and Margelef index between 0.5459-0.2951.Various physico-chemical parameters of water analyzed depicted a positive correlation with diversity and distribution of Phytoplankton.
2015
The present study was conducted, a period from October 2010 to May 2011 covering three distinct seasons, in Sundarbans mangrove area especially in three major river systems namely Rupsha -Pashur (R-P), Baleswar-Bhola (B-B) and Malancha- Kholpetua (M-K) river systems to evaluate the relationship between different water quality parameters and zooplankton abundance.Total thirteenth sampling points were selected along the three river systems for the convenient of the study.Five different groups of zooplankton were identified in this study where Copepoda group represented as the most dominant group securing seven genus.Almost all groups of zooplankton were found at a higher number in the dry winter whereas pre -monsoon represented the lowest number of them. Zooplankton of all groups was positively correlated with dissolve oxygen, hardness and transparency whereas negatively or inversely correlated with pH, temperature, current and salinity except of Copepod. Thus the findings of the pres...
ENVIRONMENTAL INTERACTIONS OF ZOOPLANKTON IN THE CHAMBAL RIVER AT NAGDA (M.P.INDIA
The present study was aimed to examine the intra and interrelationships of zooplankton biodiversity with their environmental factors at Chambal River (23° 4561′ N and Long 75° 4227′ E), Nagda (M.P.India). Zooplankton diversity studies in the upstream and downstream of the river were performed in December 2019. Surface waters from the same locations were collected and analyzed for eight physico-chemical parameters like temperature, pH, dissolved oxygen, transparency, phosphate, nitrate, sulphate and chloride following the standard methods of APHA (2012) to assess the level of pollution load in the reservoir. Results revealed that the values of water quality parameters of upstream were slightly exceeded the ideal values but found to well within the standards of BIS and ICMR. However, the values of all water quality parameters of downstream were found to be significantly higher and exceeded the maximum permissible limits of BIS and ICMR. The species composition at the Chambal River during the winter months of 2019 at two study stations includes a total of 1453 individuals. Out of 1453, Rotifera comes out as a top group with 579 (40%) individuals followed by Cladocera 35% (514), Copepoda 22% (324), and Ostracoda 3% (36). The species abundance was more in station 2 with 1020 individuals followed by Station 1, (433). Five biodiversity indices like the number of species, Dominance index (D), Simpson (1-D), Shannon-Wiener diversity index (H), evenness index were calculated by using PAST software (version 326b). The site-wise diversity indices showed significantly lower values in downstream than upstream. The Pearson correlation coefficient matrix analysis describes the positive correlations between various diversity indices like Dominance (D), Simpson (1-D), Shannon-Wiener (H) and evenness with water temperature, pH, DO, chlorides and phosphorus and shown negative correlations with nitrates and sulphate values. The outcome has been argued from the point of view of interactions of zooplankton with water quality parameters. The study confirms that downstream of the Chambal River at Nagda is highly polluted and not suitable for human consumption. The study advocates implementing strict laws and guidelines to protect the water quality status.
Zooplankton Diversity of Godavari River at Mudgal Dam, Pathari Dist. Parbhani (M.S.), India
International Journal of Biological Innovations, 2024
Aquatic ecosystem has a vast diversity of micro-eukaryotes (rotifers, crustaceans and protists), and such diverse taxonomic groups play important roles in ecosystem functioning and services. Farming organisms such as fish receive nutrients other than minerals by taking food. In nature, most organisms survive by consuming live food such as plankton from the environment. Zooplankton are of great importance and basically essential in fish culture. The present work is carried out for the assessment of plankton diversity of Godavari river water in Mudgal dam area for a period of one year starting from March, 2019 to February, 2020. The zooplankton serves as a food for other higher organisms. During the exploration, authors recorded four groups of zooplankton namely Rotifera with 7 species, Cladocera with 5 species, Copepoda 3 species and Ostracoda 2 species.