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Diet composition and feeding strategy of Johnius dussumieri (Cuvier, 1830) from Ratnagiri coast of India

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Title Diet composition and feeding strategy of Johnius dussumieri (Cuvier, 1830) from Ratnagiri coast of India
Not Available
 
Creator T Kumar
S. K. Chakraborty
A K Jaiswar
D Panda
K M Sandhya
T H Shah
S K Bhagabati
A Alam
S Kumari
 
Subject Sciaenids, Johnius dussumieri, Food and Feeding, Ratnagiri, India
 
Description Not Available
The present investigation included diet composition and feeding habits of sin croaker (Johnius dussumieri) based on the
monthly examination of 1031 specimens along Ratnagiri coast of India from December 2009 to November 2011. Results
indicate that J. dussumieri is a carnivore feeder and feeds upon narrow range of food items. Crustaceans were identified as
most dominant food items followed by teleost fishes, molluscs and planktonic forms like fish egg and Salpa. The species
preferably feeds on a marine crustacean i.e. Acetes spp. The feeding intensity of J. dussumieri was found poor during April
and September. The analysis of Kendell‘s coefficient of concordance indicated relatively stronger association (W = 0.64,
p < 0.05) of choice of food items with season, while the same did not hold good for different size groups. Therefore, the
differential feeding habit was evident among the different size groups. The juveniles preferably feed on crustaceans, while
the adults were observed to prefer small teleost fishes. The differences in the diet composition between adults and juveniles
indicated the existence of different feeding habitats along the Ratnagiri coast of India.
Not Available
 
Date 2021-08-11T06:33:25Z
2021-08-11T06:33:25Z
2020-07-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/54645
 
Language English
 
Relation Not Available;
 
Publisher Indian Journal of Geo Marine Sciences