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: |
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Min Ref.: Max Ref.: Mean Ref.: |
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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). |