Muthukumarasamy Arunachalam

Muthukumarasamy Arunachalam
Central University of Kerala · Department of Animal Science

M.sc., Ph.D.

About

132
Publications
51,940
Reads
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2,212
Citations
Introduction
stream and river ecology, freshwater fish diversity, taxonomy, phylogeny, wild danio
Additional affiliations
February 2017 - June 2020
Central University of Kerala
Position
  • Head of Faculty
January 1994 - June 2015
Manonmaniam Sundaranar University
Position
  • Professor

Publications

Publications (132)
Article
Full-text available
The present study was carried out in 27 streams of the southern part of the Western Ghats and the Eastern Ghats from January to December 2018. The outcomes show that there is an increase in the percentage of Ephemeroptera (71%) in the first order and there was a negligible fall in the abundance of the fourth-ordered stream. LSE results show a gradu...
Article
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Schismatorhynchus nukta (Sykes, 1839) is redescribed from the specimens collected from Bhadra River, a tributary of Krishna River basin and the subgenus is elevated to the genus level as Nukta.
Article
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The main objective of this study was to evaluate the community structure of the order Ephemeroptera in the Southern Western Ghats ecoregion along with Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA) from 2017 to 2018. Ecological parameters estimated at each collecting site were pH, dissolved oxygen, biological oxygen...
Article
Full-text available
A new cyprinid fish Labeo shivamogaensisis is described from Bhadra Reservoir Karnataka, India. Labeo shivamogaensis is distinguished from its closest congener Labeo dussumieri, by having more upper transverse scale rows, more circumferential scale rows, more pre-dorsal scales, more circumpeduncular scale rows and from Labeo fimbriatus by having fe...
Article
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Systomus spilurus (Gunther, 1868) was so far reported from Sri Lanka since its description and currently this species showed its distribution in a stream inside Kalakkad Mundanthurai Tiger Reserve in Tamiraparani River, Tamil Nadu and South India. The new record of Systomus spilurus is based on the examination of 4 specimens.
Article
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Labeo fisheri (Jordan and Starks 1917) showed its distribution only in mountain streams and rivers of Sri Lanka. Collection of one specimen from the upstream of Tamiraparani River in South Tamil Nadu, peninsular India showed its occurrence outside its original distribution range.
Article
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p>In this study, we describe a miniature sisorid catfish of the family Erethistidae, as a new distributional record of Pseudolaguvia nubila from the Baandhkhola (stream), a tributary of Narayani River inCentral Nepal. Pseudolaguvia nubila shows its distribution to Nepal is distinguished from its congeners by combination of characters, such as- two...
Article
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The genus Neolissochilus was described by Rainboth, 1985 and currently includes 24 nominal taxa with distributions in southern and south-eastern Asia. Five new species of Neolissochilus are described herein from streams and rivers of the Western Ghats, peninsular India, one of the World’s hotspots of biodiversity. The new species include N. capudel...
Article
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The snakehead of the family are represented 33 species from Asia of which two species Channa ornatipinnis and C. pulchra were recently described from Myanmar. The recent record of C. ornatipinnis from Tuivawl River, Tuivawl village in Champhai district, Mizoram, India is of ichthyological interest Introduction The snakeheads of the family Channidae...
Preprint
Full-text available
The snakehead of the family are represented 33 species from Asia of which two species Channa ornatipinnis and C. pulchra were recently described from Myanmar. The recent record of C. ornatipinnis from Tuivawl River, Tuivawl village in Champhai district, Mizoram, India is of ichthyological interest Introduction The snakeheads of the family Channidae...
Article
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A new cyprinid fish, Hypselobarbus kushavali, is described from Kali River, Karnataka, India. Hypselobarbus kushavali is diagnosed from its closest congener, H. dobsoni, by having more upper transverse scale rows, more circumferential scale rows and more lateral line to pelvic scale rows, and from H. bicolor and H. jerdoni by having fewer lateral-l...
Article
Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We presen...
Article
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Devario aequipinnatus is an aquarium fish. The wider distribution of Devario aequipinnatus throughout Asia is due to the existence of intraspecific variation in its germplasm in the form of chromosomes. The diploid chromosomal number 2n=50 with 14m+llsm+15st+10t chromosomes and the fundamental arm number NF=90. A pair of heteromorphic marker chromo...
Article
Hypselobarbus kurali (Menon & Rema Devi, 1995) consists of multiple species with similarity in the color pattern of the tip of their caudal fins being orange and black. This complex of species possesses two pairs of barbels. Inspection of collections of H. kurali from the senior author’s samples from various streams/rivers of Western Ghats covering...
Article
Many forested headwater streams are heterotrophic ecosystems in which allochthonous inputs of plant litter are a major source of energy. Leaves of riparian vegetation entering the stream are broken down by a combination of biotic and abiotic processes and, in most temperate and boreal streams, provide food and habitat for dense populations of detri...
Article
Understanding what mechanisms shape the diversity and composition of biological assemblages across broad-scale gradients is central to ecology. Litter-consuming detritivorous invertebrates in streams show an unusual diversity gradient, with α-diversity increasing towards high latitudes but no trend in γ-diversity. We hypothesized this pattern to be...
Conference Paper
Full-text available
This study is based on the direction from the High Court of Madras to the junior author. Tamiraparani River is a minor basin with a length of 120 km and it is the only perennial system without any interstate disputes in water sharing. Moreover, it is the life line for drinking, power generation, agriculture and industrial use for more than three di...
Article
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Cyprininae is the largest subfamily (>1300 species) of the family Cyprinidae and contains more polyploid species (∼400) than any other group of fishes. We examined the phylogenetic relationships of the Cyprininae based on extensive taxon, geographical, and genomic sampling of the taxa, using both mitochondrial and nuclear genes to address the phylo...
Article
This paper deals with dynamic impedance compensation and control schemes for changes in load as well as change in line reactance in transmission lines. Static Synchronous Series Compensator (SSSC) designed to compensate the reactive power to the transmission line. Here SSSC uses Neutral Point Clamped (NPC) Voltage Source Converter (VSC) to generate...
Article
In Cloud computing environment, large pools of systems are interconnected to provide dynamically scalable infrastructure for application and data. Load balancing is a core and challenging issue in cloud computing. It is a process of distributing the work load among the virtual machines. The random arrival of user requests across VMs can cause heavy...
Article
Understanding what mechanisms shape the diversity and composition of biological assemblages across broad-scale gradients is central to ecology. Litter-consuming detritivorous invertebrates in streams show an unusual diversity gradient, with α-diversity increasing towards high latitudes but no trend in γ-diversity. We hypothesized this pattern to be...
Article
Full-text available
This study analysed the impact of riparian land use in structuring the larval ephemeropteran communities from 25 sites in streams and rivers of Kalakad-Mundanthurai Tiger Reserve (KMTR) of the southern end of the Western Ghats, India. A total of twenty-eight species belonging to twentyfour genera of six families were collected across all the sites....
Article
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Adults and first through fifth instars of three species of Naucoridae in the subfamily Laccocorinae were collected from localities in Tamil Nadu and Karnataka states in southern India. Specifically, Heleocoris indicus (Montandon) and Heleocoris vicinus (Montandon) were collected from the vegetated margins of streams that contained no congeners. Pog...
Article
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Schismatogobius deraniyagalai is recorded from the Seethanathi River of Karnataka state in the southern part of India. Previous records of these species were from the streams in Kerala of India and from freshwater habitats of Sri Lanka. Herein we report the occurrence of this species in Seethanathi River showing its distribution extended further no...
Article
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This study documents the distribution patterns, endemism and uniqueness (species richness) of fishes in the Tunga and Bhadra rivers of Western Ghats, India. We recorded 77 species represented by 7 orders, 16 families and 44 genera, of which 36 species are endemic to Western Ghats, 12 species endemic to India and 26 species endemic to the Indian Sub...
Article
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Heptageniidae is a family of mayflies (Ephemeroptera) distributed mainly in the Holarctic, Oriental and Afrotropical regions (Webb & McCafferty 2008). This family is Laurasian in origin and is a conspicuous component of the benthic community in the hill streams of the Western Ghats of southern India. This is a global hotspot of biodiversity endowed...
Article
A new species of mayfly Choroterpes (Euthraulus) nambiyarensis sp. nov. is described from the nymphs collected in the southern Western Ghats, India. The types are deposited in the Zoological Survey of India, Kolkata, India.
Data
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Olyra astrifera, a new species of Olyrid catfish is described from the Manimalai River of south Kerala in southern Western Ghats. It can be distinguished from its congeners (except O. horae) by its adipose fin confluent of with caudal base, pectoral fins with weak serrations and strong dentitions, a greater length of the adipose fin base, a shorter...
Article
This study documents the distribution patterns, endemism and uniqueness (species richness) of fishes in the Tunga and Bhadra rivers of Western Ghats, India. We recorded 77 species represented by 7 orders, 16 families and 44 genera, of which 36 species are endemic to Western Ghats, 12 species endemic to India and 26 species endemic to the Indian Sub...
Article
Full-text available
Abstract The Zebrafish, Danio rerio, is a well-known vertebrate model species widely used in research associated with biomedical areas and comparative and evolutionary biology. Interestingly, despite the importance of this species, little is known about the natural history, habitats, and native distribution. In our study of the species, we collecte...
Article
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Rapid bioassessment using macroinvertebrate communities has gained importance recently. The present work addresses the evaluation of the applicability of 3 general rapid bioassessment approaches namely Biomonitoring Working Party (BMWP), Average Score Per Taxon (ASPT) and Rapid Bioassessment Protocol III (RBP III). Among the 34 sites in Western Gha...
Article
The barbin genera Discherodontus Rainboth 1989, Chagunius Smith 1938 and Hypselobarbus Bleeker 1860 are distrib-uted in Southeast and South Asia and are among the least studied taxa of the order Cypriniformes. Few morphological studies have been conducted on these genera and only a very limited number of morphological characters were employed to hy...
Article
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The cyprinid tribe Labeonini (sensuRainboth, 1991) is a large group of freshwater fishes containing around 40 genera and 400 species. They are characterized by an amazing diversity of modifications to their lips and associated structures. In this study, a total of 34 genera and 142 species of putative members of this tribe, which represent most of...
Article
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Very little is known about the diversity and systematics of the genus cypriniform genus Hypselobarbus. Currently, the genus includes at least eleven species, all endemic to freshwater systems of Peninsular India. While these species are commonly known in India and are frequently used as a food source, little is known about the morphological diversi...
Article
Forces that influence the evolution of synonymous codon usage bias are analyzed in six species of three basal orders of aquatic insects. The rationale behind choosing six species of aquatic insects (three from Ephemeroptera, one from Plecoptera, and two from Odonata) for the present analysis is based on phylogenetic position at the basal clades of...
Article
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Large-scale inter-basin water transfer (IBWT) projects are commonly proposed as solutions to water distribution and supply problems. These problems are likely to intensify under future population growth and climate change scenarios. Scarce data on the distribution of freshwater fishes frequently limits the ability to assess the potential implicatio...
Data
References used to develop our database of freshwater fish species locations. (DOCX)
Article
Full-text available
Abstract: Puntius ticto, a widely distributed barb, was long believed to have many variants. Recent research has shown that what was earlier known as P. ticto in different regions of India comprised of many similar looking species such as P. manipurensis, P. muvattupuzhaensis, P. pookodensis, among others. As yet another addition to this complex, w...
Article
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Diversity and distribution of Ephemeroptera larvae were studied in ten study sites of Tamiraparani river of southern Western Ghats, India. Twenty four species belonging to twenty genera and six families were recorded. Diversity (Simpson and Shannon's index) was governed by the heterogeneity of the substratum which in turn was influenced by catchmen...
Article
Aim We tested the hypothesis that shredder detritivores, a key trophic guild in stream ecosystems, are more diverse at higher latitudes, which has important ecological implications in the face of potential biodiversity losses that are expected as a result of climate change. We also explored the dependence of local shredder diversity on the regional...
Article
Abstract The diet and feeding ecology of 12 cyprinid fishes were studied in the Thalayanai stream of southern India. The diet of Barbodes sarana, Danio aequipinnatus and Rasbora daniconius were specialized in terrestrial and aquatic insects. Hypselobarbus dobsoni and Garra mullya consumed vegetative matter and unicellular algae as their most import...
Data
Full-text available
The genetic variation in three species of the freshwater cyprinid Garra was studied using the traditional morphometric, meristic and Restriction fragment length polymorphism as molecular tool analysis. Samples were collected from their respective geographic locations of southern Western Ghats. Based on the 46 morphometric and 18 meristic characters...
Article
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Understanding a wider range of genotype-phenotype associations can be achieved through ecological and evolutionary studies of traditional laboratory models. Here, we conducted the first large-scale geographic analysis of genetic variation within and among wild zebrafish (Danio rerio) populations occurring in Nepal, India, and Bangladesh, and we gen...
Article
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Most hypotheses explaining the general gradient of higher diversity toward the equator are implicit or explicit about greater species packing in the tropics. However, global patterns of diversity within guilds, including trophic guilds (i.e., groups of organisms that use similar food resources), are poorly known. We explored global diversity patter...
Article
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Current trends are reviewed in the molecular systematics and phylogeny of the Ephemeroptera (mayflies), an ancient monophyletic lineage of pterygote insects. Theories of mayfly origins are analyzed, followed by a discussion of higher classification schemes in light of recent developments in molecular systematics. Ephemeroptera evolution is a classi...
Article
Full-text available
A new species of Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae) inhabiting riffles of a stream in Kerala state in southern India is described. Aphelocheirus kaygieyess n. sp. is diagnosed by widely separated hemelytra and the pattern of dark maculation on the vertex. This species is compared to other Indian species of Aphelocheirus. Seven...
Article
Full-text available
Interbasin water transfer projects, in which river connectivity is restructured via man-made canals, are an increasingly popular solution to address the spatial mismatch between supply and demand of fresh water. However, the ecological consequences of such restructuring remain largely unexplored, and there are no general theoretical guidelines from...
Article
Full-text available
The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is particularly sensitive to climate warming. Aquatic ecosystems are well suited to studying warming effects on decomposition because the otherwise confounding influence of moisture is constant. By using a latitudinal temperature gradient in an u...
Article
Full-text available
A new genus of Naucoridae inhabiting a waterfall in Tamil Nadu state in southern India is described. Pogonocaudina Sites and Zettel NEW GENUS is diagnosed by a dense fringe of long hairs around the perimeter of the posterior abdominal segments, and by both males and females with a single segmented front tarsus with two pretarsal claws. Despite the...
Chapter
Full-text available
Plecoptera (or stoneflies) is a small monophyletic order of hemimetabolous insecls, with around, 3497 described species included under 286 genera and 16 families. currently there ate 117 described species under 26 genera and 8 families in India. They constitute a significant ecological component of the lotic ecosystems. Aspects of stone fly general...
Data
Full-text available
The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is particularly sensitive to climate warming. Aquatic ecosystems are well suited to studying warming effects on decomposition because the otherwise confounding influence of moisture is constant. By using a latitudinal temperature gradient in an u...