Record Details

Stock structure of small indigenous and near threatened Ailia coila (Hamilton, 1822) from Ganga and Brahmaputra river systems.

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Stock structure of small indigenous and near threatened Ailia coila (Hamilton, 1822) from Ganga and Brahmaputra river systems.
Not Available
 
Creator Rinchen Nopu Bhutia, Sri Hari M, Nagesh Talagunda Srinivasan, Geetanjali Deshmukhe, Karankumar Ramteke, Shashi Bhushan and Asha Taterao Landge
 
Subject Stock, gangetic ailia, truss network analysis
 
Description Not Available
Ailia coila (Hamilton, 1822) commonly called as Gangetic ailia is a “Near Threatened” species in the IUCN Red list. Total of 421 samples were taken from the Ganga (Samudragarh and Farakka) and Brahmaputra (Dhubri and Guwahati) river systems for the present study. The landmark-based truss network system was employed to delineate the stock of this species. The truss network was constructed by using 12 landmarks and 25 truss distances were extracted. Factor analysis using varimax rotation for
differentiating the population explained 74.53% of the total variation in the data from first three factors; with first, second and third factors contributing 56.32%, 10.83%, 7.38% of the variations respectively. The morphological difference between the stocks of this species was related to oblique depth measurement on the dorsal and anal fin, and also on the caudal peduncle region. Discriminant function analysis was employed to reveal the percentage correctly classified individuals on the respective locations. Overall classification rate is found to be good around 97.85%. The percentage correctly
classified was highest in Samudragarh (100%) which was followed by Farakka, Dhubri and Guwahati. The results from this present study reveals the existence of difference stock in Ganga and Brahmaputra and it forms a baseline study for the stock-specific management measures. Further, genetic population structure of this species should be studied using molecular markers to validate the results.
Not Available
 
Date 2022-06-16T10:51:10Z
2022-06-16T10:51:10Z
2019-04-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/72725
 
Language English
 
Relation Not Available;
 
Publisher Not Available