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Journal Article

A seasonal study of phytoplanktons diversity of Gomti river Lucknow, (U.P.) India: A pollution indicator

01 Jan 2015-International Journal of Research in Engineering and Applied Sciences (Euro Asia Research and Development Association)-Vol. 5, Iss: 4, pp 43-48
TL;DR: Role of planktons as bioindicator in aquatic health as well as their role in survival of aquatic taxa of animals in river Gomti has been discussed.
Abstract: Gomti: One of the important river of Indo-gangetic system and perennial river of Awadh plains and run across the major part of U.P. covering nine districts and 940 Km stretch area. A study was carried out to observe phytoplankton diversity, density and distribution in three different seasons summer, monsoon and winter during 2012-13 at five different sites. Various genera of algae belonging to chlorophyceae viz. Chlamydomonas, Spirogyra, Oedogonium, Ulothrix, Hydrodictyon, Vaucheria, Scenedesmus, Desmidium, Zygnema, Mongeotia spp., Microspora spp., Gonium sociale, Pediastrum, Ranunculus aquatilis, Seven genera of bacillariophyceae viz. Stauroneis- pusilla ,Cosmarium –formosuhum, Micrasterias desmids, Synedra- ulna, Navicula- sphaerophor, Nitzschia stagnorum, Synura, Myxophyceae viz. Volvox aureus ,Oscillatoria ,Stigonema have been recorded. Phytoplanktons are significant formal natural occupier of all water bodies. Monitoring programmes of phytoplanktons are very important. They may provide information on possible new introductions and may serve as early warning system to detect the pollution level. Chlamydomonas , Ranunculus aquatilis Microspora spp, Volvox aureus were the most abundant followed by Ulothrix, Hydrodictyon, Desmidium. High concentration of diatoms at Daliganj bridge and Nishatganj bridge indicate polluted zone of the river. Oscillatoria and Stigonema spp. at polluted sites can be used as an indicator of organic pollution in the river. In the present study role of planktons as bioindicator in aquatic health as well as their role in survival of aquatic taxa of animals in river Gomti has been discussed. Proper biological and chemical treatment of domestic sewage and industrial effluents before discharge to river system is suggested.
References
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Journal Article
TL;DR: Algal community and its important species were grouped in terms of bray curtis similarity index, by taking into consideration the phytoplankton dynamics and months.
Abstract: The middle Black sea region has quite large wetlands, including lakes, rivers, ponds, marshs and large reservoirs. Lake Cernek is one of the most valuable wetlands in Kizilirmak Delta. The lake and its environment have a high biodiversity due to species richness and natural habitats. Therefore, it has been recognized as a Ramsar site. The phytoplankton of lake Cemek consisted of 104 taxa belonging to Cyanobacteria, Bacillariophyta, Chlorophyta, Cryptophyta, Dinophyta, Euglenophyta and Xanthophyta divisions. Chlorophyta (46%) and Bacillariophyta (23%) members were dominant species. These were followed by Cyanobacteria (16%) and Euglenophyta (11%) members. Chlorella, Monoraphidium, Oocystis, Pediastrum and Scenedesmus from Chlorophyceae and also Anabaena, Chroococcus and Microcystis species from Cyanophyceae sometimes made water blooms. Blue green algae constituted algal communities in the surface of the lake in summer months. Algal community and its important species were grouped in terms of bray curtis similarity index, by taking into consideration the phytoplankton dynamics and months.

93 citations

Journal Article
TL;DR: The phytoplankton samples were collected from the Veeranam lake for a period of one year from March-2005 to February-2006 and Bacillariophyceae formed the dominant group.
Abstract: The phytoplankton samples were collected from the Veeranam lake for a period of one year from March-2005 to February-2006. The physico-chemical parameters of water such as air-temperature, water temperature, pH, salinity, dissolved oxygen, electrical conductivity and total dissolved solids were observed and their ranges were: 30.1-36.5 degrees C, 29.0-34.4 degrees C, 7.9-8.4, 1.2-2.5 mgl(-1), 7.6-9.2 microS and 2.5-5.2 mgl(-1). Totally 160 species of phytoplankton belonging to different taxonomic groups were identified. Among these 74 species to belong to Bacillariophyceae, 43 species to Chlorophyceae, 38 species to Cyanophyceae and 5 species to Euglenophyceae. The phytoplankton density was high (1705 cells l(-1)) during the summer season and low (760 cells l(-1)) during the winter season. Bacillariophyceae formed the dominant group. Species diversity index (H'), species richness (SR) and species evenness (J') were calculated.

58 citations

Journal ArticleDOI
TL;DR: The section of the Liguro-Provençal basin north of the Balearic Islands is one of the most productive sites in the whole Mediterranean Sea, with intense phytoplankton bloom lasting about 2 months in late winter-early spring.
Abstract: The section of the Liguro-Provencal basin north of the Balearic Islands is one of the most productive sites in the whole Mediterranean Sea, with intense phytoplankton bloom lasting about 2 months in late winter-early spring. The phytoplankton species composition of the area was investigated using light and electron microscopy to analyze bottle and net samples collected at several stations in spring 2000 and 2003. Serial dilution cultures established from bottle samples were also examined. A total of 168 phytoplankton taxa was identified, consisting of 73 Coscinodiscophyceae, 47 Dinophyceae, 25 Coccolithophyceae and 4 Prymnesiophyceae, 5 Prasinophyceae, 3 Chrysophyceae, 2 Cryptophyceae, 2 Dictyochophyceae, 1 Euglenophyceae, 1 Pelagophyceae, 1 Choanoflagellidea, 1 Filosea and 3 incertae sedis. We also provided a brief taxonomic description and original micrographs for 25 of the smallest and/or less known species identified in the study area, which may go undetected during routine microscopical analysis of fixed samples. Among these, 10 species were recorded for the first time in the Mediterranean Sea, confirming the need of detailed studies to reveal the biodiversity and biogeography of Mediterranean phytoplankton.

41 citations

Journal ArticleDOI
31 Dec 2006-Algae
TL;DR: Through a survey for over a period of three years, 78 taxa of diatoms from Orissa state and its neighbouring regions are reported for the first time, of which 22 are new to India.
Abstract: The Bacillariophyceae are unicellular algae characterized by having a cell wall of silica. The wall consists of two valves that have more or less flat surfaces, held together by a band or girdle. They are found in freshwater and marine habitats, and also on moist soil surfaces. There are only few published records on the systematic account of freshwater diatom flora of the Indian sub-continent. Till date a total number of 173 species of diatoms belonging to 24 genera have been reported from various regions of India (Gonzalves and Gandhi 1953; Gandhi 1956, 1959, 1967; Sarode and Kamat 1979, 1983; Barhate and Tarar 1983, 1985; Somashekar 1983, 1984; Bongale 1985; Prasad and Jaitly 1985; Pal and Santra 1990; Sinha 1997; Kant and Gupta 1998), however, all these work have been confined to certain specific localities of Western and Southern India, e.g. Maharastra, Gujrat and Karnataka states. Orissa state located in the east cost of India (Lat. 17° 48’-23° 34’ N and Long. 81° 24’-87° 29’ E) has an area of 1,55,842 km2 and is rich in water bodies due to its several rivers, reservoirs, lakes, ponds and ditches, streams in the hilly terrain and waterlogged rice fields. Hence it was expected that may diatoms might be occurring in this part of India. So far there has been no record of the fresh water diatoms of Orissa state, in the east coast of India. Through our survey for over a period of three years we for the first time reported 78 taxa of diatoms from Orissa state and its neighbouring regions of which 22 are new to India.

14 citations

Journal Article
TL;DR: In this paper, a study was carried out in Bathi pond near Davangere city Karnataka (India) on phytoplankton diversity, density and distribution in different seasons and their correlations with physico-chemical properties of water.
Abstract: A study was carried out in Bathi pond near Davangere city Karnataka (India) on phytoplankton diversity, density and distribution in different seasons and their correlations with physico-chemical properties of water. A total of 67 phytoplankton species belonging to Chlorococcales, Blue-greens, Desmids, Diatoms and Euglenoids were represented. Relative abundance of phytoplankton showed maximum of Blue-greens (45.61%) followed by Chlorococcales (40.11), Diatoms (13.97), Desmids (0.17%) and Euglenoids (0.13%). The highest density of phytoplankton was recorded during summer season. Chlorococcales varied with peak density (14,134 org/l) during summer and lowest during rainy season (10,333 org/l), Blue-greens recorded 16,361 org/l in summer and least during winter (14,289 org/l). Diatoms were found maximum (5,600 org/l) during summer and minimum with (3,739 org/l) during rainy season, Desmids varied from 76 org/l during summer and lowest during rainy season with 48 org/l and Euglenoids were recorded 57org/l during summer and least during winter with 41 org/l. Our study revealed that the growth of phytoplankton is governed by BOD, Chloride, COD, Conductivity, Potassium and Sodium. During course of study air temperature was found positively correlated with Euglenoids, BOD with Diatoms. Chloride with Desmids and Diatoms. COD showed positive correlation with Blue-green algae, Chlorococcales and Euglenoids while Potassium and sodium were found positively correlated with Desmids. Pollution tolerant species like Scenedesmus quadricauda, Coelastrum sp., Tetraedon muticum, Closterium sp., Euglena sp., Phacus sp., Trachelomonas sp., and Microcystis sp. were recorded.

12 citations