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Aberrations in the feeding behaviour of the Indian Mackerel, Rastrelliger kanagurta

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Relation http://eprints.cmfri.org.in/10130/
 
Title Aberrations in the feeding behaviour of the Indian Mackerel,
Rastrelliger kanagurta
 
Creator Supraba, V
Dineshbabu, A P
Thomas, Sujitha
Rohit, Prathibha
Rajesh, K M
 
Subject Mackerel fishery
Food and Feeding
 
Description The food and feeding habits of the mackerel have
been studied extensively, which suggest that
mackerel generally adopts either filter feeding or
preying on the individual animals. Plankton
consisting of copepods, diatoms and dino-flagellates
and small crustaceans such as the Acetes sp. are
reported in their feed. However, a deviation from
the normal feeding habit was observed in the gut
analysis of mackerel collected on 8th October 2013
from trawlers at Mangalore Fisheries Harbour.
Among the 50 stomachs analysed 4% contained oil
sardines juveniles and 2% had digested squid remains
as a food item. The specimens which ranged from
192 mm to 285 mm in total length and weighed 67
g to 224 g were mature with their gonad in spent or
spent recovery stages. The semi-digested oil sardine
present in the gut of mackerel ranged in size from
36 to 81 mm.
 
Publisher Central Marine Fisheries Research Institute
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10130/1/9.pdf
Supraba, V and Dineshbabu, A P and Thomas, Sujitha and Rohit, Prathibha and Rajesh, K M (2014) Aberrations in the feeding behaviour of the Indian Mackerel, Rastrelliger kanagurta. Marine Fisheries Information Service; Technical and Extension Series (219). p. 26.