Reproduction of Syngnathus acus
Document source: http://www.fishbase.de/Reproduction/FishReproSummary.php?ID=1770&GenusName=Syngnathus&SpeciesName=acus&fc=258&StockCode=1966
 
Main Ref. Breder, C.M. and D.E. Rosen, 1966
Mode dioecism
Fertilization in brood pouch or similar structure
Mating type
Spawning frequency
Spawning aggregation Ref.  
Batch spawner Yes.   Ref.  Breder, C.M. and D.E. Rosen, 1966
Reproductive guild bearers
external brooders
Parental Care paternal
Description of life cycle and mating behavior Ovoviviparous; reproducing on average 3 times each year (Ref. 89328). Several females depositing partial clutches to a male’s brood pouch under the tail (Refs. 205, 31201). Up to 400 eggs may be found in a single pouch (Ref. 89329). Brooding males occur mainly between May and July (Refs. 31201, 58137). During the breeding season, both males and females were observed to remain low amongst the seagrass in one meadow (Ref. 31201). Gestation period lasts about 5 weeks and size at birth is 1.7- 3.5 cm (Refs. 58137, 88187, 89330). Aquarium experiments have shown that new born young are benthic, remaining close to the bottom Ref. 89330).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Luna, Susan M. on 12.13.04
Modified by Opitz, Silvia on 02.14.12
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