Abstract

ABSTRACT White abalone Haliotis sorenseni was studied in the mariculture laboratory of the Channel Islands Marine Resource Institute in southern California to determine the effect of environmental factors such as temperature, diet, light, and cultivation density on growth and survival. Fertilized eggs and larvae were raised at water temperatures of 9°C, 12°C, 15°C, 18°C, and 21°C in two separate trials. The rate of larvae development increased significantly with each 3°C change in temperature. Survival from fertilization to settlement stage was greatest (56%) at 12°C, followed by survival of 23% at 15°C, and 2% at 18°C. Larvae raised at the extremes of 21°C and 9°C had 100% mortality by 90 and 100 h posthatch. The biological zero temperature, the point at which growth stops, is projected to be 3.04°C for white abalone, significantly lower than that of sympatric species. Fecundity was determined as 7,271 eggs/g for wild-caught abalone and 6,128 eggs/g for hatchery-reared abalone and was not significantly d...

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.