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Barat, A.
- Mitochondrial Dna Variation and Population Genetic Structure of Snow Trout from Kumaun and Garhwal Himalayan Regions of India
Abstract Views :1267 |
PDF Views:279
Authors
Affiliations
1 Directorate of Coldwater Fisheries Research, ICAR, Bhimtal-263136, Nainital, Uttarakhand), IN
2 Research Centre of Central Institute of Fisheries Technology (ICAR), Matsyabhavan, Bhidia P.O, Veraval -362269, (Gujarat), IN
1 Directorate of Coldwater Fisheries Research, ICAR, Bhimtal-263136, Nainital, Uttarakhand), IN
2 Research Centre of Central Institute of Fisheries Technology (ICAR), Matsyabhavan, Bhidia P.O, Veraval -362269, (Gujarat), IN
Source
Journal of Ecophysiology and Occupational Health, Vol 14, No 1-2 (2014), Pagination: 23-31Abstract
Snow trout (Schizothorax richardsonii) is one of the economically important coldwater fish, widely used as a food fish in the Himalayan region of India. The present study examined the genetic variations between five geographically isolated populations of S. richardsonii using ATPase 6/8 and COI gene sequences of mitochondrial DNA. Analysis of 25 sequences of ATPase 6/8 gene (842 bp) and 22 sequences of COI gene (847 bp) revealed 16 and 8 haplotypes respectively. The estimated haplotype and nucleotide diversity was high in GR (Gola river, Ranibagh) population (h = 1.00000, π = 0.00475 for ATPase6/8 and h = 0.83333, π = 0.00354 for COI). Results of AMOVA indicated that majority of the genetic variations in both genes are due to variation among populations (65.41 % for ATPase6/8 and 55.57 % for COI gene). The pairwise FST comparison and Neighbour-joining tree revealed low genetic divergence of KU (Kosi river, Uttarwahini) and KR (Kosi river, Ramnagar) population from other populations. The findings of this study showed that variation levels detected by ATPase6/8 and COI gene in population of S. richardsonii were very close to each other and demonstrate utility of ATPase6/8 and COI gene sequences for the population study of S. richardsonii for conservation, breeding and management progammes.Keywords
ATPase6/8, COI, Genetic Variations, Mt-DNA, Schizothorax Richardsonii (snow Trout)- Length-weight Relationship and Growth Pattern of Common Carp (Cyprinus carpio var. Communis) in Different Pond Environment in Mid Hill Region
Abstract Views :763 |
PDF Views:457
Authors
P. Kumar
1,
N. N. Pandey
1,
N. Okendro Singh
2,
N. Chandra
3,
D. C. Mishra
3,
P. K. Agrawal
3,
A. Barat
1,
J. C. Bhatt
3
Affiliations
1 Directorate of Coldwater Fisheries Research (ICAR), Bhimtal-263 136, Nainital (Uttarakhand), IN
2 College of Agriculture, Central Agricultural University, Iroisemba - 795 004, Imphal, Manipur, IN
3 Vivakanand Pravatiya Krishi Anusandhan Sansthan (VPKAS), Almora (Uttarakhand), IN
1 Directorate of Coldwater Fisheries Research (ICAR), Bhimtal-263 136, Nainital (Uttarakhand), IN
2 College of Agriculture, Central Agricultural University, Iroisemba - 795 004, Imphal, Manipur, IN
3 Vivakanand Pravatiya Krishi Anusandhan Sansthan (VPKAS), Almora (Uttarakhand), IN
Source
Journal of Ecophysiology and Occupational Health, Vol 14, No 1-2 (2014), Pagination: 48-54Abstract
An experiment on rearing of common carp was carried out in three types of ponds viz. earthen pond, cemented tank and poly tank at field centre, DCFR, Champawat (Uttarakhand) and at selected farmers field of Champawat District to evaluate the growth performance of this fish species. ANCOVA results revealed that there are three distinct seasons which influence on length-weight relationship of common carp culture in these pond systems. The fish follows isometric growth in spring season (March-May); (however it does not follow in the remaining seasons). Further, there is no specific growth pattern of common carp observed in these pond environment. Logistic curve is the best fitted model to the dataset obtained from cemented pond. However, Richards and von-Bertalanffy curves are found appropriate to represent the growth pattern of this fish in earthen and poly tank, respectively. In the long run, higher growth of fish is predicted in poly tank.Keywords
Poly Tank, Formulated Diet, Length-weight Relationship, Isometric Growth- Comparative Phylogenetic Study of Four Coldwater Fishes (Family Cyprinidae) Based on Targeted 16S RNA Mitochondrial Gene
Abstract Views :307 |
PDF Views:135
Authors
Affiliations
1 Department of Zoology, Kumaun University Nainital 263001, Uttarakhand, IN
2 Coldwater Fisheries Research, (ICAR), Bhimtal-263136, Nainital, Uttarakhand, IN
1 Department of Zoology, Kumaun University Nainital 263001, Uttarakhand, IN
2 Coldwater Fisheries Research, (ICAR), Bhimtal-263136, Nainital, Uttarakhand, IN
Source
Journal of Ecophysiology and Occupational Health, Vol 13, No 3-4 (2013), Pagination: 47-56Abstract
S. richardsonii, T. putitora, B. Bendelisis and G. Gotyla are commercially important coldwater fish, widely used as a food fish, game fish and ornamentally fish in the Uttarakhand region of India. The present study examined the phylogenetic relationship within and between four coldwater fish species from Kumaun and Garhwal region of Uttarakhand. The mitochondrial 16S ribosomal DNA were used to elucidate phylogeny of the family Cyprinids. Analysis of 34 sequences of 16S rRNA gene (550 bp) revealed 12 haplotypes for both regions. The 16S rRNA dataset contained 93 and 94 variable site found for Garhwal and Kumaun region respectively. Rate of transition were higher than transversion for both region. The nucleotide diversity was lowest between the T. putitora and S. richardsonii and highest between the B. bendelisis and G. gotyla for both regions. The phylogenetic tree, constructed unweighted pair group average (UPMGA) methods revealed similar results suggesting that T. putitora and S. richardsonii have a close relationship to each other while maximum divergence was observed in B. bendelisis, which was also confirmed by the genetic distance data. The understanding of genetic variations of coldwater fishes will play a key role in conservation and management of this endangered fish species.Keywords
S. richardsonii, T. putitora, B. bendelisis, G. gotyla, 16S rRNA, Phylogenetic Relationship.- Genetic Diversity in Four Species of Coldwater Fishes (Family Cyprinidae) Using Random Amplified Polymorphic DNA Markers and Implication for their Conservation
Abstract Views :248 |
PDF Views:127
Authors
Affiliations
1 Department of Zoology, Kumaun University Nainital 263001, Uttarakhand, IN
2 Coldwater Fisheries Research, Indian Council of Agricultural Research Bhimtal-263136, Nainital, Uttarakhand, IN
1 Department of Zoology, Kumaun University Nainital 263001, Uttarakhand, IN
2 Coldwater Fisheries Research, Indian Council of Agricultural Research Bhimtal-263136, Nainital, Uttarakhand, IN