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Stock structure analysis of Johnieops borneensis (Bleeker, 1851) from Indian waters

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Title Stock structure analysis of Johnieops borneensis (Bleeker, 1851) from Indian waters
Not Available
 
Creator S. Sibinamol
A. K. Jaiswar
S. Jahageerdar
G. Vaisakh
S. K. Chakraborty
 
Subject Croaker
Johnius borneensi
Morphometry
Stock, Truss
 
Description Not Available
Johnius borneensis (Bleeker 1851) contributes substantially to the marine fishery of India. The stock structure analysis of
the species is essential for its sustainable management and utilization. The study is based on 411 specimens of the species
randomly collected from the commercial landings at four marine fish landing centres in India. A truss network with
28 distance variables, based on 10 landmarks, was developed utilizing the digital images of the specimens, by means of tps
Dig2 and PAST software platforms. Multivariate test statistics – Mahalanobis distance, Wilks’ lambda and Pillais’ test
indicated significant difference between the East coast stocks and some extent of mixing among West coast stocks. Truss
measurements transformed for allometric variations were subjected to Canonical Discriminant analysis and bivariate plot
between the canonical variables showed existence of different morphometric stocks of the species. Major truss distances that
contributed to the delineation were that on the head and posterior region of the fish body. The truss morphometric traits, that
best discriminated the stocks, were subjected to the discriminant function analysis which appropriately classified 80 % of the
specimens to the particular location. The present study is the first account on the stock structure analysis of J. borneensis
from India and will help in developing policies for the management of the fishery and the sustainable utilization of the
resource.
Not Available
 
Date 2021-08-21T12:03:33Z
2021-08-21T12:03:33Z
2020-07-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/59047
 
Language English
 
Relation Not Available;
 
Publisher Not Available