Record Details

First report on the diet and reproductive biology of red-toothed triggerfish Odonus niger (Ruppell, 1836) from the south-eastern Arabian Sea

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/15591/
https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/first-report-on-the-diet-and-reproductive-biology-of-redtoothed-triggerfish-odonus-niger-ruppell-1836-from-the-southeastern-arabian-sea/5E7432D5667DAAFE14D3E20C0D051119
https://doi.org/10.1017/S0025315421000771
 
Title First report on the diet and reproductive biology of
red-toothed triggerfish Odonus niger (Ruppell, 1836) from the south-eastern Arabian Sea
 
Creator Suyani, N K
Rajesh, Mridula
Rajesh, K M
 
Subject New record
Fish breeding
Fishery Biology
Food and Feeding
Pelagic Fisheries
Pelagic Fishes
 
Description The feeding habits and reproductive biology of red-toothed triggerfish Odonus niger (Ruppell, 1836) was analysed from 449 specimens collected from the Karnataka coast of the south-eastern Arabian Sea. Of the total stomachs examined, only 54 (12%) were empty and 395 contained food remains. The diet comprised crustacean remains (48.0%), zooplankton (21.4%), algae (16.5%), fish remains (6.1%) and cephalopod remains (5.3%) along with partially digested matter (2.3%) and detritus (0.4%). The species was found to be a generalist feeder and an omnivore. The overall sex ratio between males and females (1: 0.44) was significantly
(P < 0.05) different. Histological examination of the ovaries indicated asynchronous ovarian development in females, with males maturing earlier than females. The gonadosomatic index (GSI) patterns of males and females, and the presence of ripe ovaries and spermatozoids suggested that April–May is the peak spawning period. The absolute and relative fecundity estimates ranged from 16,464–312,420 eggs and 251–2812 eggs g−1 respectively. Fecundity was positively correlated with total length and body weight. The biological information on diet composition and reproductive traits provided for the first time in this study can facilitate
conservation, management and sustainable exploitation of this species in the study area.
 
Publisher Cambridge University Press
 
Date 2021
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15591/1/Journal%20of%20the%20Marine%20Biological%20Association%20of%20the%20United%20Kingdom_2021_Rajesh%20K%20M.pdf
Suyani, N K and Rajesh, Mridula and Rajesh, K M (2021) First report on the diet and reproductive biology of red-toothed triggerfish Odonus niger (Ruppell, 1836) from the south-eastern Arabian Sea. Journal of the Marine Biological Association of the United Kingdom, 101 (5). pp. 827-837.