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Reproductive biology and feeding habits of the common dolphinfish Coryphaena hippurus (Linnaeus, 1758) off Saurashtra coast, India

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Relation http://eprints.cmfri.org.in/13352/
http://epubs.icar.org.in/ejournal/index.php/IJF/issue/view/2488
10.21077/ijf.2018.65.4.74184-05
 
Title Reproductive biology and feeding habits of the common dolphinfish Coryphaena hippurus (Linnaeus, 1758) off Saurashtra coast, India
 
Creator Saroj, Jyoti
Mohammed Koya, K
Mathew, K L
Tehseen, Panja
 
Subject Fishery Biology
Food and Feeding
 
Description The present study analysed reproductive biology and feeding habits of the common dolphinfish Corphaena hippurus, along the Saurashtra coast of India. The study is based on an investigation of 295 specimens caught using drift gillnet at Veraval. The samples were collected on a monthly basis between March 2015 and February 2016. The sex ratio was 1:1.75 with a significant dominance of females in the population. The size at maturity for females was 593 mm FL (fork length). Absolute fecundity of the individuals ranged from 1,07,813 to 15,50,400 having ova diameter range of 0.3-1.96 mm. C. hippurus spawned throughout the year with its reproductive activity peaking in April and December. Thus the dolphin fish has an extended spawning season; during which it laid eggs almost continuously. A total of 128 stomachs of C. hippurus, whose FL ranged from 380 to 1250 mm were examined during the one year period of this study. Tunas were found to be the common dietary component of the dolphinfish.
 
Date 2018
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/13352/1/Mohammed%20Koya_2018_Indian%20Journal%20of%20Fisheries_65-4_Reproductive%20biology%20and%20feeding%20habits%20of%20the%20common%20dolphinfish.pdf
Saroj, Jyoti and Mohammed Koya, K and Mathew, K L and Tehseen, Panja (2018) Reproductive biology and feeding habits of the common dolphinfish Coryphaena hippurus (Linnaeus, 1758) off Saurashtra coast, India. Indian Journal of Fisheries, 65 (4). pp. 44-49.