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

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Title Insights into the food and feeding habits of eight gestating females of elasmobrachs from Mumbai waters
 
Creator Raje, S G
Raje, R K
Kumar, P
Chakraborty, S K
 
Subject Feeding
Food
Gestating females
Index of relative importance
 
Description 1043-1051
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.
 
Date 2022-05-26T10:31:35Z
2022-05-26T10:31:35Z
2021-12
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscair.res.in/handle/123456789/59757
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.50(12) [December 2021]