Method and apparatus for rearing aquatic animals
US4382423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1979 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | Jul 13, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/81
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for rearing aquatic animals wherein the animals are retained for an initial period of growth in a first rearing means including a first habitat means comprising a first plurality of stacked substrates having a first combined total surface area and wherein the animals are retained for at least one subsequent period of growth in at least one further rearing means including a second habitat means comprising a second plurality of stacked substrates having a second combined total surface area greater than the aforesaid first combined total surface area. The habitat means of each rearing means are adapted to be inserted within or removed from the medium of such rearing means, depending on whether it is desired to rear crustaceans or fish, or both, in polyculture. In further aspects of the invention, unique filtration means for continuously filtering the rearing medium and culling means for transferring or harvesting the animals are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.