Associative dependence among plankton and macrophytes as pollution markers at tropical lentic environ, Gujarat, India

Abstract

The present research was undertaken at three sampling stations of Gomti catchment, Central Gujarat, India, to study dominance, interaction, and interdependence among biotic components (phytoplankton, zooplankton and aquatic macrophytes). The phytoplankton population was represented by 39 genera and 48 species belongs to family Bacillariophyceae (21 species), followed by Cyanophyceae (7), Cholorophyceae (18), and Euglenophyceae (2). In total, seven classes of zooplankton were represented by 36 genera and 39 species. Zooplankton dominance was reflected by class Ciliophora (16 species), followed by Zooflagellata, Rhizopoda and Rotifera (6 each), and Cladocera (3),and least by Copepoda and Ostracoda (1 species each). Of 16 species of aquatic macrophytes, 3 (18.75%) were abundant, 4 (25%) common, and 9 (56.25%) were rare. The indices (Palmer, Nygaard’s, and Macrophyte index) were determined to delineate the interdependent relationship among studied biotic components. Strong association was observed between Chlorophyceae and Bacillariophyceae, Ostracods and Ciliophorans, and Cladocerans and Bacillariophyceans. The detailed results of indices and interdependent associations among biotic components are discussed. The information provided herewith makes an insight for better understanding of the environmental aspects to be addressed effectively for the better protection, conservation, and management of Gomti reservoir, Gujarat, India. DOI: http://dx.doi.org/10.3126/ije.v3i2.10528 International Journal of the Environment Vol.3(2) 2014: 175-191

Diversity and Seasonal Dynamics of Chlorophyta Reichenbach, 1828 and Charophyta Migula, 1890 Algae in the Swat River Basin, Pakistan

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“…Plankton as the primary producers acts as chief constituent of ecological pyramids; few genera aid as biological indicators of water quality (Odum, 1971;Patrick, 1971). Plankton has been used recently as an indicator to observe and understand changes in the ecosystem because it seems to be strongly influenced by climatic features (Beaugrand et al, 2000;Li et al, 2000, Soni andThomas 2014.). Very few information was available in fresh water phytoplankton of coastal districts of India (Jyothi and Narasimha Rao, 2013A;2013B;Renuka Devi and Narasimha Rao, 2013;Omesh Bajpai et al 2013, Bhanu Prakash et al 2014Jyotsna et al 2014).…”

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“…Phytoplankton has been used recently as an indicator to observe and understand changes in the ecosystem because it seems to be strongly influenced by climatic features (Li et al, 2000;Soni and Thomas, 2014.). Phytoplankton diversity and succession in small man-made ponds are largely ignored.…”