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Comparative studies on age and growth patterns of cultivated and wild Catla catla (Hamilton)

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Title Comparative studies on age and growth patterns of cultivated and wild Catla catla (Hamilton)
 
Creator Brraich, Onkar Singh
Kaur, Lakhwinder
 
Subject Back calculation
Indian major carp
Opercular bones
 
Description 144-149
Catla catla (Hamilton) is one of the fastest growing Indian
major carps (IMCs) with increasing market demand. Consistent
demand and exploitation invites the attention of ichthyologists for
its conservation strategies. Age and growth studies play a pivotal
role for managing the fishery stocks in different water bodies.
Here, we studied the age and growth patterns using opercula of
both farm grown as well as the wild grown C. catla adopting
standard methodologies. Wild specimens were caught from
Harike wetland (Ramsar site) and the cultivated one from a farm
at Dhudike in Punjab. High value of correlation coefficient ‘r’
0.976 (wetland) and 0.983 (farm) reveals the strong relationship in
total length and operculum radius of the fish. C. catla achieved
average total length from wetland and farm, respectively at 1st
(273.44 mm) 2nd (427.44 mm) 3rd (525.49 mm) 4th (624.52 mm) 5th
(744.98 mm) 6th (813.62 mm) and 1st (282.1 mm) 2nd (463 mm) 3rd
(601.7 mm) year of age of opercular bones study. The growth
parameters such as, index of species average size (φh) 135.6
(wetland) and 200.6 (farm), growth constant (Clt) showed two
growth phases from both localities i.e. sexual immaturity up to 2
years and sexual maturity afterwards. Whereas, growth
characteristic (Cth) has revealed irregular growth pattern at
wetland in comparison to growth of fish from farm. The results of
this study concluded that the fish experienced more growth from
the farm due to better and controlled conditions but, in wetland
surrounding conditions were observed to be unfavourable for
survival of the fish C. catla.
 
Date 2022-01-31T10:18:50Z
2022-01-31T10:18:50Z
2022-02
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscair.res.in/handle/123456789/59001
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEB Vol.60(02) [Feb 2022]