Open Access Repository

Variation in the food intake of grass carp, Ctenopharyngodon idella (Val.), fed singly or in groups


Downloads per month over past year

Carter, CG, Houlihan, DF, McCarthy, ID and Brafield, AE 1992 , 'Variation in the food intake of grass carp, Ctenopharyngodon idella (Val.), fed singly or in groups' , Aquatic Living Resources, vol. 5 , pp. 225-228 , doi: 10.1051/alr:1992022.

Carter_et_al_AL...pdf | Download (296kB)
Available under University of Tasmania Standard License.

| Preview


Each animal may be assumed to possess a unique
combination of physiological traits (Bennett, 1987).
However, there is little information on thc effects of
interindividual variation in fish (Cui and Liu, 1990).
Individual differences in competitive ability, aggressiveness
and or size can lead to the establishment of
dominance hierarchies within groups of fish (Metcalfe,
1989; Metcalfe et al., 1989). The variation in
growth rates in groups of fish are rclated to dominance
hierarchies and preferential access to food
resources by dominant individuals (Jenkins, 1969;
Fausch, 1984; Koebele, 1985). Recently, radiography
has been used to measure individual consumption
rates for groups of salmonids and has demonstrated
considerable inter-individual variation in food intake
(Jobling et al., 1989; Carter et al., 1992a; McCarthy
et al., 1992). Two aims of this study were to use
radiography to examine the variation in the food
consumption rate of grass carp, Ctenopharyngodon
idellu (Val.), held together and to assess whcther variation
in growth rates could bc explained by variation
in consumption rates. A final aim of this study was
to compare the day to day variation in consumption
rates of grass carp held in a group to thosc held
individually, in terms of the individual meal share, in
order to examine the cffect of endogenous influences
on appetite.

Item Type: Article
Authors/Creators:Carter, CG and Houlihan, DF and McCarthy, ID and Brafield, AE
Keywords: Grass carp, voluntary food intake, hierarchy, behaviour
Journal or Publication Title: Aquatic Living Resources
DOI / ID Number: 10.1051/alr:1992022
Additional Information:

copyright is owned by Aquatic Living Resources

Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page