Process for controlling the microbial environment in abalone mariculture
US4532883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Oct 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/81
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a process for mariculture of abalone, the male and female abalone are pretreated prior to spawning with one or more antibiotics in a seawater bath that is essentially bacteria-free. Eggs are filtered from the bath in which spawned and fertilized, and placed in a hatching bath of essentially bacteria-free seawater containing one or more antibiotics. After the eggs hatch, and the larvae have broken away from their respective cases, the larvae are transferred, free of egg debris, to a third bath of essentially bacteria-free seawater containing one or more antibiotics and selected beneficial antibiotic-resistant strains of bacteria which are separately cultured and which control ammonia and provide other benefits. Upon development to a settlement stage, the larvae are transferred to a final settlement bath of essentially bacteria-free seawater containing one or more antibiotics and selected beneficial antibiotic-resistant strains of which induce settlement, are a source of food for the duration of larval development and subsequent early growth of the abalone, and help control the level of toxic ammonia to within acceptable levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.