Spatial variations in zooplankton diversity in waters contaminated with composite effluents

Mukhopadhyay, Sajal; Chattopadhyay, Buddhadeb; Goswami, Abhishek; Chatterjee, Asitava

doi:10.4081/jlimnol.2007.97

Cited by 26 publications

(20 citation statements)

References 3 publications

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“…Agricultural runoff from nearby paddy fields and sewage discharge from houseboats, in Punnamada (station 1) provides a nutrient and organic rich eutrophic environment for B. calyciflorus. According to Ferrari et al (1989) this species is thought to be one of the rapidly thriving metazoans and a pioneer species, whose density increases with increase in waste water (Stevenson et al, 1998;Mukhopadhyay et al, 2007). Brachionus quadridentata and B. calyciflorus are considered to be representative of eutrophic conditions (Gannon and Stemberger, 1978;Sampaio et al, 2002).…”

Section: Rotifersmentioning

confidence: 99%

Species Diversity and Community Assemblage of Planktonic Rotifers from Vembanad Estuary-Kerala, India

Cleetus¹,

Asha²,

Suson³

et al. 2014

International J. of Oceanography and Marine Ecological System

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Among the zooplankton, Rotifera comprise an integral part of the food chain and are important link between nanoplankton and carnivorous zooplankton. The diversity of rotifers is indicative of the ecological factors of the water body as they respond more quickly to environmental changes and appear as sensitive indicators of changes of water quality. In this context, species diversity of planktonic rotifers and its community assemblage in Vembanad backwater (Ramsar site) has been carried out from March 2012 to February 2013 from ten selected stations on North and South of the Thanneermukkom barrage. Abiotic and biotic parameters were determined and correlated with rotifer abundance to gain information about the forces that assembles the rotifer community in this dynamic environment. Maximum abundance was observed during monsoon (av. 8934 individual . During the present study 26 species of the rotifers belonging to 10 families were observed, with maximum abundance of Brachionus sp. (60%). Predominant species were Brachionus rotundiformis (16.4%), B. calyciflorus (6.6%), B. urceolaris (5.5%), B. plicatilis (4.05%), Keratella tropica (3.2%) and Asplanchna sp. (2.2%). Most of the dominant species observed were eurytopic freshwater forms that became less abundant towards downstream (station 8, 9 and 10) with respect to the salinity gradient prevailing in the estuary. Highest Shannon diversity index (4.51) was observed in station 3 (Rani) and lowest (2.73) in station 10 (Aroor). Multivariate Bio-Env (BEST) analysis showed that temperature, conductivity, salinity and phosphate best determined the abundance and distribution of rotifers in the Vembanad estuary. As the trophic status and rotifer assemblages of an ecosystem are very much related, a comprehensive study on the species diversity and community assemblage of rotifers in Vembanad estuary can furnish a valuable integrative index for further ecological assessment and monitoring of estuarine ecosystems.

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Section: Rotifersmentioning

confidence: 99%

Species Diversity and Community Assemblage of Planktonic Rotifers from Vembanad Estuary-Kerala, India

Cleetus¹,

Asha²,

Suson³

et al. 2014

International J. of Oceanography and Marine Ecological System

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“…Such preypredator interaction could be instrumental in controlling the densities of these 2 rotifer species at Site 1 and Site 3. The ubiquitous presence of B. calyciflorus and their tolerance to widely fluctuating limnochemical ambience were reported by Patil and Harshey (1983), Sharma (1992), and Mukhopadhyay et al (2007). Rotifer abundance and distribution were influenced and limited respectively by predation by cladocerans, copepods, predatory rotifers, etc., along with a host of limnochemical parameters.…”

Section: Discussionmentioning

confidence: 91%

“…A predatory illoricate rotifer, Asplanchna brightwellii, was recorded at Site 1 and Site 3 only, where its density was very low. However, Asplanchna brightwellii was recorded at a higher density in a comparatively more polluted wastewaterfed fishpond of ECW in a pH of exceedingly high total hardness and chloride content (Mukhopadhyay et al, 2007). Brachionus calyciflorus was recorded from 4 study sites (it was absent at Site 2); its abundance was highest at Site 3.…”

Section: Discussionmentioning

confidence: 99%

“…Mandal and Mukherjee (2011) reported 17 species from a similar fishpond. Mukhopadhyay et al (2007) recorded 15 species of rotifers from wastewater-carrying canals of the ECW ecosystem. In the present study, 6 rotifer species, Asplanchna brightwellii, Brachionus angularis, B. calyciflorus, B. falcatus, B. rubens, and B. quadridentatus, were also observed to thrive in wastewater-contaminated waters of the ECW system having exceedingly high TDS and chloride contents.…”

Section: Discussionmentioning

confidence: 99%

“…Recent studies (Mukhopadhyay et al, 2007;Roy Goswami et al, 2008) focused on the effects of the various contaminants on these aquatic systems, for both physicochemical and biological components. The present study focused on the physicochemical factors and zooplanktonic diversity of selected urban ponds contaminated with municipal wastewater.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Diversity of zooplankton in municipal wastewater-contaminatedurban pond ecosystems of the lower Gangetic plains

Adhikari¹,

Goswami²,

Mukhopadhyay³

2017

Turk J Zool

Self Cite

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The present limnological investigation was conducted to study zooplankton diversity in municipal wastewater-contaminated ponds in light of their contributions to the ecosystem. It is revealed by the present study that the physicochemical factors of the study sites are regulated by wastewater input and anthropogenic activities. A good number of zooplankton species thrived in these ponds (22 species of zooplankton, including 14 species of Rotifera, 3 species of Copepoda, 4 species of Cladocera, and a single species of Ostracoda), which suggests that the municipal wastewater, loaded with various nutrients, has influenced the zooplankton diversity and abundance. Site 3, a well-managed fishpond, showed the highest Shannon-Wiener diversity index value (2.303). Site 5, contaminated with organic waste matter from adjacent cattle sheds, showed the highest zooplankton abundance (1609.63 ind. L -1 ) and maximum dominance (0.472). Site-wise variations of diversity indices and statistical analyses support our findings. These ponds, although faced with serious threats of extinction by unscientific and unplanned urbanization policies, could very well be recognized as natural effluent treatment units within the municipal areas. Ponds of varied sizes in almost every municipal area of the lower Gangetic plains stabilize raw untreated domestic wastewater and encourage fish yield and the local economy.

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Effect of a total solar eclipse on the surface crowding of zooplankton in a freshwater lake ecosystem

Adhikari¹,

Goswami²,

Roy³

et al. 2018

Limnology

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Spatial variations in zooplankton diversity in waters contaminated with composite effluents

Abstract: ABSTRACT

Cited by 26 publications

References 3 publications

Species Diversity and Community Assemblage of Planktonic Rotifers from Vembanad Estuary-Kerala, India

Species Diversity and Community Assemblage of Planktonic Rotifers from Vembanad Estuary-Kerala, India

Diversity of zooplankton in municipal wastewater-contaminatedurban pond ecosystems of the lower Gangetic plains

Effect of a total solar eclipse on the surface crowding of zooplankton in a freshwater lake ecosystem

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