FN Archimer Export Format
PT C
TI Problems related to the lack of functional swimbladder in intensive rearing of the seabass Dicentrarchus labrax and the sea bream Sparus auratus .
BT 
AF CHATAIN, Beatrice
AS 1:;
FF 1:PDG-DOP-DCM-BOME-LALR;
SI PALAVAS
SE PDG-DOP-DCM-BOME-LALR
UR https://archimer.ifremer.fr/doc/1989/acte-1432.pdf
LA English
DT Proceedings paper
DE ;Sparus aurata;Sparidae;Dicentrarchus labrax;Serranidae;Teleostei;Pisces;Genetic abnormalities;Hatching;Swim bladder;Growth;Larvae;Survival;Intensive culture
AB The primordial inflation of swimbladder normally occurs at a size of 4 to 5 mm in sea bream Sparus auratus and 5 to 6 mm in sea bass Dicentrarchus labrax . However, in intensive larval rearing conditions, lack of inflation is often observed and leads to the production of up to 80% of postlarvae whose swimbladder is not functional. They are, on the average, 20-30% smaller in weight than normal fry. Their survival rate can also be reduced by any kind of stress such as weaning, handling or hypoxic conditions. It is suggested that the selective mortality which affects the abnormal fish results both from a decrease in predatory efficiency and an increase in energetic needs. 
PY 1989
PD FEB
CT Actes de colloques Ifremer, Tahiti, French Polynesia, 20 Feb - 4 Mar 1989, n°9, chap. 64, pp.699-709
ID 1432
ER

EF