New Zealand Journal of Marine and Freshwater Research abstracts

---

Effect of temperature on the breeding cycle and spawning success of the New Zealand abalone, Haliotis australis

GRAEME A. MOSS

National Institute of Water & Atmospheric
Research Ltd
P. O. Box 14 901, Kilbirnie
Wellington, New Zealand

Abstract  Adult Haliotis australis were brought into breeding condition in the hatchery by holding at constant temperature and ad libitum feeding of a mixed diet of seaweeds. Spawnings were achieved after 21 weeks at 15deg.C. This period was reduced to 14 weeks by raising the holding temperature to 18deg.C for 2 weeks before testing. More of those H. australis held at 18deg.C were induced to spawn and they produced a greater number of viable gametes. No spawnings were achieved from those H. australis tested within 1-2 days of collection from the wild.

Keywords  Haliotis australis; temperature; controlled breeding

New Zealand Journal of Marine and Freshwater Research, 1998, Vol. 32: 139-146

0028-8330/98/3201-0139 $7.00/0 (c) The Royal Society of New Zealand 1998

PDF file of entire paper: medium quality (602K); (scanned from paper original: notes about this process)

---

This year's abstracts | Journal home page | All abstracts | Publishing home page