Spawning of Glaucosoma hebraicum

Main Ref.: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Data Reference: Anonymous, 1992
Land: Australia
Spawning ground: shelf
Observationsplats: Western Australia
Season:
   
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
111 111 111               111 111
Sex ratio:    %  Ref.:   
Temperatur:  -   °C
Gestation period: month/s
 
Avkommans längd: cm
Batch spawners
Daily spawning frequency -
Mean:
Min Ref.:
Max Ref.:
Mean Ref.:
Kommentarer: Mature Westralian jewfish migrate to shallower waters during the spawning season. They aggregate around inshore reefs in about 20 m of waters, although actual spawning appears to take place on isolated outcrops of reef or flat, weed-covered sandy substrates away from a main reef (Ref. 6390). Spawning peaks in January and February when water temperatures are high and plankton is abundant (Ref. 27560). Fecundity increases with size and up to 4 million eggs were estimated in fish of 81 to 87 cm. Potential fecundity was up to 6.8 million (Ref. 27621).

 
Ref. (t.ex. 9948)
Ordlista (t.ex. oophagy)



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