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Breeding seasonality of Anodontostoma chacunda (Hamilton, 1822) off Mangalore coast, Karnataka, India

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Title Breeding seasonality of Anodontostoma chacunda (Hamilton, 1822) off Mangalore coast, Karnataka, India
Not Available
 
Creator Vijaykumar,M E
Anjanayappa,H N
Naik,A S Kumar
Mahesh,V
Benakappa,S
Remya,V C
 
Subject Gizzard Shad
Maturity stage
Reproduction
Fecundity
Ova diameter
 
Description Not Available
Clupeids support world’s largest marine fishery and dominant pelagic group landing from Indian waters. Even though landings of marine sector increased, the quantity of fish landing is dwindled and fluctuating and capture fish production is dependent on one of the natural biological factors “reproduction”. To increase the production potential of marine fisheries, studies on breeding seasonality with reproductive biology of fish is an essential precursor for eco-friendly rational exploitation and sustainable management of fisheries. The present study focuses on some of the important reproductive biology aspects of Anodontostoma chacunda along the Mangalore coast for the first time. Six maturity stages were classified based on macroscopic appearance. Gonado-Somatic Index (GSI) indicated protracted spawning which extended from September (2013) to April (2014) with evidence of ova diameter studies as a prolonged spawner. The size at first maturity of A. chacunda was estimated at 139 mm (TL) and 141 mm (TL) for male and female, respectively. The overall male-female sex ratio of 1:1.04 was skewed towards female in A. chacunda and differed among months and size classes. Fecundity of A. chacunda ranged between 2,97,457 to 11,44,871 eggs.
Not Available
 
Date 2021-09-18T04:00:38Z
2021-09-18T04:00:38Z
2019
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/64262
 
Language English
 
Relation Not Available
 
Publisher Not Available