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Spawning of Thunnus obesus
Main Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Data Ref.: Stequert, B. and F. Marsac, 1989
Country: Australia
Spawning ground:  
Locality: Northwestern Coral Sea
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
111                 111 111 111
Sex ratio:    %  Ref.:   
Temperature:  -   °C
Gestation period: month/s
Length of offspring: cm
Batch spawners
Daily spawning frequency -
Min Ref.:
Max Ref.:
Mean Ref.:
Comments: Bigeye tuna and yellowfin tuna aggregate and spawn over periods of the full moon during the summer months (Ref. 6390). Aggregations are associated with frontal regions where sea surface temperatures are 25-26°C (Ref. 168, 30314).
Entered by: Luna, Susan M. - 18.05.99
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