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Response of captive seabass and seabream as behavioural indicator in aquaculture

Sarà, Gianluca and Oliveri, A. and Martino, G. and Serra, Simonetto and Meloni, Gianni and Pais, Antonio (2007) Response of captive seabass and seabream as behavioural indicator in aquaculture. Italian Journal of Animal Science, Vol. 6 (suppl. 1), p. 823-825. eISSN 1828-051X. Article.

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Abstract

Welfare of cultivate fish at high-density represents an important concern for modern aquaculture. The behaviour of European seabass (Dicentrarchus labrax) and seabream (Sparus aurata) reared in cages was studied in a fish farm of northern Sardinia (Italy) in autumn 2006 to test whether captive condition had an effect on the movement patterns of these two species.Video images recorded before, during and after the manual feeding distribution allowed us to collect data on different behaviours of captive fish. Thus, behaviours indicating the position of fish in the water column, swimming direction and possible aggressive behaviours (aggression, direction change and collision) showed juveniles and adults of seabass and seabream were overall affected by feeding rhythms and captive overcrowding. Seabream had a major tendency to swim towards the bottom and higher frequency of horizontal swimming and collisions than seabass. The overall behavioural difference between two species was explained in terms of their differences in ecological features in the wild.

Item Type:Article
ID Code:1895
Status:Published
Refereed:Yes
Uncontrolled Keywords:Aquaculture, welfare, behavioural change, Dicentrarchus labrax, Sparus aurata, Mediterranean
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/20 Zoocolture
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze zootecniche
Publisher:Avenue media on behalf of Scientific Association of Animal Production (ASPA)
eISSN:1828-051X
Publisher Policy:Depositato per gentile concessione dell'ASPA
Additional Information:Relazione al 17. Congresso nazionale ASPA, Alghero, 29 maggio-1 giugno 2007.
Deposited On:18 Aug 2009 10:06

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