A5065019334- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Animal Behavior and Welfare Studies
- Fish biology, ecology, and behavior
- Environmental DNA in Biodiversity Studies
- Fish Biology and Ecology Studies
- Amphibian and Reptile Biology
- Reproductive Physiology in Livestock
- Animal Behavior and Reproduction
- Identification and Quantification in Food
- Genetic and phenotypic traits in livestock
- Effects of Environmental Stressors on Livestock
- Aquatic Invertebrate Ecology and Behavior
- Primate Behavior and Ecology
- Reproductive biology and impacts on aquatic species
- Turtle Biology and Conservation
- Aquaculture Nutrition and Growth
- Marine animal studies overview
- Aquaculture disease management and microbiota
- Animal Genetics and Reproduction
- Veterinary Equine Medical Research
- Ichthyology and Marine Biology
- Dermatology and Skin Diseases
- Quantum Information and Cryptography
- Quantum Mechanics and Applications
Ahmedabad University
2019-2024
University of Minnesota
2014-2022
Minnesota Department of Natural Resources
2014-2022
Indian Institute of Science Bangalore
2010-2013
Abstract Measurement of environmental DNA ( eDNA ) is becoming a common technique to survey for rare and invasive fish due its sensitivity specificity. However, utility limited by an incomplete understanding factors governing sources fates. Failure detect especially difficult interpret so surveillance techniques often collect large numbers samples across broad regions. If, however, could be reliably attracted single location where their easily measured that would useful. We conducted...
Aquatic invasive species (AIS) are of concern in North America due to their devastating impacts on ecosystems and economies. The Great Lakes region is particularly vulnerable AIS introduction establishment with at least 184 nonindigenous reported this from a large number taxa including viruses, bacteria, diatoms, protozoa, arthropods, mollusks, fish, plants. Representative these groups were explored, describing the features natural history current efforts prevention control. Specifically,...
The occurrence of musth, a period elevated levels androgens and heightened sexual activity, has been well documented for the male Asian elephant (Elephas maximus). However, relationship between androgen-dependent musth adrenocortical function in this species is unclear. current study first assessment testicular free-ranging elephants by measuring testosterone (androgen) cortisol (glucocorticoid – physiological indicator stress) metabolites faeces. During males expectedly showed significant...
Abstract The epibranchial organ (EO) is an enigmatic tubular found in the pharyngeal cavity of many filter-feeding fishes. We investigated whether it might function as a taste that mediates aggregation and ingestion planktonic food. EO associated structures bighead silver carps, two successful invasive planktivorous fishes, were examined using histological electrophysiological techniques. Both species possess finely structured gill rakers extend directly via series protrusions into each four...
Historically, reproductive health in wildlife species has been evaluated primarily via immunoassay detection of fecal and urinary steroid hormone metabolites. This combination sample type, biomarker category, assay preferred for decades due to the ease assessing through evaluation stable compounds easily collected biological samples using a cost-effective method. Increasingly, beginning with high performance liquid chromatography (HPLC) more recently convergence ultra HPLC coupled mass...
Two species of congeneric filter-feeding microphagous carps from Asia, the bighead and silver carp, were recently introduced to North America have become highly invasive. These carp similar food habits but has unique habit jumping when disturbed. Both complex poorly understood social behaviors while both are thought aggregate (form groups) shoal tight groups), this possibility not yet been examined in these species. The present study grouping tendencies laboratory effects fish density...
A series of laboratory experiments tested the hypothesis that Silver Carp (Hypophthalmichthys molitrix), an invasive river carp from China, employs a prostaglandin F2α-derived sex pheromone is attractive and species-specific. Using electro-olfactogram recording (EOG), we found olfactory system this species acutely sensitive to three F-series prostaglandins (PGFs) at picomolar concentrations sensitivity enhanced when juveniles are masculinized using androgens, consistent with expectations...
Abstract Animals face several challenges in their natural environment, and to cope with such conditions, they may exhibit contrasting physiological responses that directly affect overall well-being survival. In this study, we assessed via faecal glucocorticoid metabolite (fGCM) measurements free-ranging mugger crocodiles inhabiting diverse habitats Gujarat, India. We sampled muggers within Charotar, a rural area (Zone A) local people having high tolerance towards the presence of muggers,...
Conservation education programs centered on animal cognition seem to be effective in bringing humans closer non-human species and thereby, influencing their conservation attitudes. Systematic evaluation of the impact cognition-based attitudes participants has revealed positive feedback an appreciation towards interest. However, such evaluations are rare for like elephants, who suffer severe challenges as high degrees conflict with local community. In this paper, we review need elephant well...
ABSTRACT Amazon sailfin catfish is relatively a recent invader to the open waters of India, and studies on ecological assessment species within Indian freshwaters are lacking. In present study, assess impact catfish, we established mesocosms mimicking natural ponds eastern India using three native fish, rohu, catla mrigal, for two size classes, small (10-20 cm length) large (20-30 fishes. Mesocosms were maintained with (test) without (control), length weight zooplankton abundance, several...
Environmental enrichment improves the health and wellbeing of zoo animals. To test this hypothesis, we used Indian leopards ( Panthera pardus fusca ), one popular animals, as a model organism to understand effects active passive elements on stress hormone levels captive individuals. We included three categories, category ‘A’ (having both active: cage size 1204 m 3 with raised platforms earthen flooring, passive: controlled temperature, playback forest sounds sound proof glass filter...
Abstract Competitive interactions between species is widely prevalent within the animal world. In this manuscript, we attempted to understand feeding competitions Amazon sailfin catfish, an invasive introduced globally, and rohu, a keystone native several countries southeast Asia. We used two different size classes of each species, large-size having total length (TL, from snout tip caudal fin) 15-20 cm fingerling TL <6 cm, duration was as proxy competition. Our results demonstrated that...
Sailfin catfishes (Pterygoplichthys spp.) are a group of fishes introduced to several freshwater habitats across the globe. hard-armoured fish with no economic importance as food species. These have been reported be affecting growth economically valuable species that native different ecosystems. In this manuscript, we developed TaqMan-based assay targeting mitochondrial cytochrome c oxidase subunit 1 (COX1) gene, specifically detect presence by environmental DNA (eDNA) measurements. The was...
Abstract Animals modulate their behaviours in accordance with local environment and the process, undergo different behavioural physiological adaptations to better survive a given ecosystem. One such behaviour that plays an important role survival sustenance of species is breeding behaviour. In this article, we present anecdotal information on strategies Marsh or Mugger crocodiles. crocodiles mostly lay single clutch during year have elongated courtship mating period lasting for 3–4 months....
The incidence of severe vertebral deformity was reported in the specimens Amazon sailfin catfish Pterygoplichthys pardalis (Castelnau, 1855) for first time India. Fish samples were collected on bimonthly basis during June 2019 to December 2020, from wastewater-fed large aquaculture impoundments (locally called ‘bheries’) north-western part East Kolkata Wetlands, Sampling performed using seine nets mesh size 15 mm–30 mm and covering more or less 5,000 sq m area each time. Deformities found 18...