Reproduction of Thunnus obesus
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=146&StockCode=160
 
Main Ref. Collette, B.B. and C.E. Nauen, 1983
Mode dioecism
Fertilization external
Mating type
Spawning frequency Variable throughout range
Spawning aggregation Ref.  
Batch spawner Yes.   Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care none
Description of life cycle and mating behavior Are multiple spawners that may spawn every 1 or 2 days over several months (Ref. 30330). They spawn over periods of the full moon (Ref. 6390). Spawn throughout the year in tropical waters (Ref. 6390).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
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