FN Archimer Export Format
PT J
TI Effect of water temperature on individual reproductive activity of pollack (Pollachius pollachius)
BT 
AF SUQUET, Marc
   NORMANT, Yvon
   GAIGNON, Jean-Louis
   QUEMENER, Loic
   FAUVEL, Christian
AS 1:1;2:1;3:1;4:1;5:2;
FF 1:PDG-DOP-DCB-PFOM-ARN;2:PDG-DRV-RA-ARN;3:PDG-DOP-DCB-EM;4:PDG-DOP-DCB-TSI-DM;5:PDG-DOP-DCM-PM-APOI;
C1 IFREMER, Lab ARN, F-29280 Plouzane, France.
   IFREMER, Chemin Maguelone, F-34250 Palavas Les Flots, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI BREST
   PALAVAS
SE PDG-DOP-DCB-PFOM-ARN
   PDG-DRV-RA-ARN
   PDG-DOP-DCB-EM
   PDG-DOP-DCB-TSI-DM
   PDG-DOP-DCM-PM-APOI
IN WOS Ifremer jusqu'en 2018
IF 1.374
TC 21
UR https://archimer.ifremer.fr/doc/2005/publication-470.pdf
LA English
DT Article
DE ;Egg quality;Temperature;Reproduction;Pollachius pollachius;Pollack;Gadoids
AB The effects of water temperature on pollack (Pollachius pollachius) spawning features were individually assessed. During the spawning period, nine fish sets, each composed of one female and two males (mean body weight: 2.5+/-1.0 kg), were placed in small-volume tanks (2 m(3)). Fish sets were held at 8, 10, or 12 degreesC (n=3 for each temperature).   Three females released eggs at 8 and 10 degreesC, while only two spawned at 12 degreesC. One hundred thirty-one individual spawns were collected from the eight spawning fish sets. The number of spawns collected per female was significantly lower at 12 degreesC (3.0+/-3.6), compared to 10 degreesC (17.3+/-10.1) and 8 degreesC (23.3+/-2.5). Egg number (eggs kg(-1) BW) was significantly lowered at 12 degreesC (26,068+/-35,989) compared to 10 degreesC (323,230+/-136,796) and 8 degreesC (599,612+/- 249,545). The number of viable eggs (eggs kg-1 BW) was significantly lower at 12 degreesC (4,175+/-7,167) compared to 8 degreesC (192,034+/-145,870).   When incubated at a common temperature of 10 degreesC, hatching and malformation percentages were significantly enhanced for breeders maintained at 8 degreesC (respectively, 35.8+/-8.5-7.3+/-1.4%) compared to 10 degreesC (9.8+/-8.0-2.3+/-1.8%). Then, pooling data were recorded at the three temperatures; a significant decrease of egg diameter with time was observed.   The individual reproductive activity of pollack experienced by breeders was deeply affected by temperature during the spawning period. A temperature of 12 degreesC is suggested to be close to the temperature reproduction upper limit in this species. 
PY 2005
SO Aquaculture
SN 0044-8486
PU Elsevier
VL 243
IS 1-4
UT 000226310200012
BP 113
EP 120
DI 10.1016/j.aquaculture.2004.09.021
ID 470
ER

EF