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Insights into the food and feeding habits of eight gestating females of elasmobranchs from Mumbai waters

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Relation http://eprints.cmfri.org.in/16203/
http://nopr.niscair.res.in/bitstream/123456789/59757/1/IJMS%2050%2812%29%20%281043-1051%29.pdf
 
Title Insights into the food and feeding habits of eight gestating females of elasmobranchs from Mumbai waters
 
Creator Raje, S G
Raje, Reshma K
Kumar, Pawan
Chakraborty, S K
 
Subject Elasmobranch Fisheries
Food and Feeding
 
Description Food and feeding habits of eight species of female elasmobranchs in gestation stages were studied. The low feeding
intensity and smaller mean volume of food per fish (in ml) attributed with their gestating activities and cease feeding in the
nursery region as protecting measures for young ones. The prey items occurred in guts content of these species were
analyzed by index of relative importance (IRI). Carcharhinus macloti and Rhizoprionodon acutus (100 %) were piscivorous
which feed exclusively on teleosts found above the bottom. Rhizoprionodon oligolinx (96.5 %) and Scoliodon laticaudus
(50.3 %), were generalized predators, feeding throughout the water column and occasionally at bottom chiefly on teleost and
small quantities of crustaceans and molluscs. Amphotistius imbricate (86.06 %), Rhinobatos annandalei (68.9 %) and
Rhynchobatus djiddensis (61.58 %) were carnivores, feeding mainly on free-living crustaceans and supplemented by teleost
at the sea bottom. Pastinachus sephen (76.59 %) showed a predacious carnivorous character exhibiting a tendency to feed
mainly on bivalves along with small portion of crustaceans, teleost and mud by browsing at bottom. The prey organisms
observed in stomach content of these species conferred with environment biota harvested by single and multi-days trawlers
operating off Mumbai waters.
 
Publisher National Institute of Science Communication and Information Resources (NISCAIR)
 
Date 2021
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/16203/1/Indian%20Journal%20of%20Geo%20Marine%20Sciences_2021_S%20G%20Raje.pdf
Raje, S G and Raje, Reshma K and Kumar, Pawan and Chakraborty, S K (2021) Insights into the food and feeding habits of eight gestating females of elasmobranchs from Mumbai waters. Indian Journal of Geo Marine Sciences, 50 (12). pp. 1043-1051.