Variation in morphometric and meristic traits of Aspidoparia morar from Brahmaputra and Barak Rivers of Assam, India
Journal Title: Journal of Applied and Natural Science - Year 2014, Vol 6, Issue 1
Abstract
The minor carp, Aspidoparia morar is a benthopelagic fish belonging to the sub-family Danioninae under the family Cyprinidae. It has emerged as the single most dominant species in the river Brahmaputra in Assam. In the present study, 240 specimens were collected from Guwahati and Tezpur in the Brahmaputra River and Silchar in the Barak River to investigate the morphometric and meristic variation among the populations. For this a total of 20 morphometric traits and 11 meristic traits were studied. The mean lengths for most of the morphometric traits were higher for the Barak River except eye diameter, inter orbital length and anal fin length which were significantly higher on the Brahmaputra River, while the post orbital length and pelvic fin length were found to be almost equal. The regressions of standard length with all the morphometric traits except pelvic fin length, pelvic fin base, pectoral fin length, dorsal fin length, anal fin length, pre orbital length, post orbital length, inter orbital length and eye diameter showed significant variation between the rivers. Two meristic traits viz. branched rays in anal fin and gill rakers on the first gill arch also showed significant variation in the samples of the rivers.
Authors and Affiliations
Simanku Borah, Asha Landge, Birendra Bhattacharjya, Sushant Chakraborty, Karankumar Ramteke, Jyotish Barman, Kaustubh Bhagawati, Bhaskar Saud
Detection of Aflatoxin B1 through indirect ELISA from fresh grains obtained from three maize growing zones of India
Aflatoxin B1 (AFB1) is most frequently found in plant substrates, which has shown the highest toxigenic potential. Based on previous studies, the IARC has classified AFB1 as a class 1A human carcinogen. Several impacts o...
Isozyme analysis based genetic fidelity assessment of micropropagated banana plants
Isozyme studies of micropropagated and mother plants of banana cvs. Matti, Ney Poovan, Kechulepa, Dwarf Cavendish, Malbhog, Champa, B.B. Battisa and FHIA-1 were done to test their genetic fidelity. The banding patterns a...
Studies on genetic variability for some metric traits in slender grain rice genotypes
An experiment was conducted to study genetic variability in forty-nine elite slender grain rice genotypes for thirteen component characters including grain yield.The experimental materials possessed a considerable amount...
Differential response of phosphorus utilization efficiency in rice by tracer technique using phosphorus-32 under phosphorus stress environment
In most soils, soil and fertilizer Phosphorus (P) are easily bound by either soil organic matter or chemicals and thus are unavailable to plants unless hydrolyzed to release inorganic phosphate. Therefore, the developmen...
Evaluation of seeding rates of rice nursery on seedling vigour and its effect on crop productivity under system of rice intensification
Four seeding rates (25, 30, 35 and 40 g/m2) of rice in nursery were tested for seedling vigour recorded at 10, 17 and 24 DAS at Malan during 2013 and 2014. The seedling vigour so obtained in nursery was subsequently eval...