Abstract:
An apparatus (10) suitable for growing baby crustaceans comprises a tank (12) of generally circular cross-section for containing water; a chamber (30) below the tank, and a duct (36) extending from the chamber to a position near the top of the tank; and means (50, 51, 53, 54) to recirculate water through the duct and the tank. During normal use the water may be recirculated through a biofilter; whenever the crustaceans are being fed the water is recirculated without any biofilter. The apparatus (10) enables baby crustaceans such as lobsters to be grown, ensuring they do not eat each other, until they are large enough that they can fend for themselves in the wild.
Abstract:
The disclosure relates to a shrimp aquaculture structure including a set of at least two raceways of increasing depth each having a length and width and including two ends, two side walls having a top, a sloped bottom joining each side wall at two side wall junctions. Some of five raceways may be stacked at least partially on top of another of the five raceways. According to another embodiment, the disclosure relates to a process of shrimp aquaculture by using the set of five raceways and sequentially transferring shrimp form one raceway to another once the shrimp reach a given average size.
Abstract:
A mechanized collector for collecting juvenile lobsters to be raised in a growout system is disclosed. The mechanized collector may be formed from a vessel, a longline support system capable of supporting and suspending a longline having a plurality of juvenile lobster collectors above a deck of the vessel, and a shaker assembly positioned to engage at least one of the plurality of juvenile lobster collectors suspended above the deck of the vessel and attached to the longline. The shaker assembly may be configured to shake the plurality of juvenile lobster collectors individually or collectively together, thereby causing the juvenile lobsters to fall into a collection trough positioned under the collector. The plurality of juvenile lobster collectors may be attached to the longline and formed from at least one generally flat panel that is suspended generally vertically in water above the longline with at least one float.
Abstract:
The present invention relates to methods of inhibiting the biofouling of a surface by an aquatic biofouling organism, and methods of altering a biofouling behavior of an aquatic invertebrate organism, comprising applying an effective amount of a modulator of at least one Calcium Sensing Receptor (CaSR) of said organism to or within said surface, wherein said modulator inhibits biofouling of said surface by said organism.
Abstract:
The present invention relates to methods of inhibiting the biofouling of a surface by an aquatic biofouling organism, and methods of altering a biofouling behavior of an aquatic invertebrate organism, comprising modulating the expression, sensitivity, activity, signaling and/or physiological function of a Calcium-sensing Receptor (CaSR) (e.g., at least one CaSR) in one or more tissues of the aquatic biofouling organism.
Abstract:
Plant for production of peneid shrimps comprising at least a rearing tank (2) and a recirculation tank (3) or a system of tanks, at least one space increasing structure (6), arranged inside said tank (2) and at least one turbulator (7) for natural oxygenation and gas stripping of the plant; additionally, comprising at least one aeration and oxygenation system (8), at least one purification system (9), at least one conditioning system (10) and a monitoring system (11) for the rearing waters.
Abstract:
The invention is an aquaculture apparatus for the accommodation of aquatic organisms which apparatus includes at least one container unit having an open upper surface and a base and sides and a pipe device located over an aperture in the base such that water which is introduced through the open surface into the container unit will pass through the pipe device when it reaches the height of the pipe device above the base.
Abstract:
A method to hatch Artemia nauplii starting from an amount of Artemia cysts, including diapauzing cysts, by incubating the cysts in a hatching medium under conditions allowing at least a portion of the cysts to hatch and to release free swimming nauplii within a predetermined incubation period, in which method the cysts are brought in contact with a compound comprising at least one -(OH)C=C(OH)- structure, to break diapause in at least a number of said diapauzing cysts in order to enable them to produce free swimming nauplii within said predetermined incubation period thereby increasing the hatching percentage of the incubated cysts from X % of the total number of full cysts when the cysts are not brought in contact with said compound, to a hatching percentage higher than X % when they are brought in contact with said compound.
Abstract:
An aquaculture method for growing crustaceans or fish for harvest in which crustaceans or fish are placed in a body of water, characterised in that the water is treated to reduce a concentration of growth inhibiting compound therein. The growth limiting compound may be a growth limiting hormone. When the method is used to grow crustaceans, the growth limiting hormone may be methyl farnesoate. A zero discharge aquaculture system is also described.
Abstract:
A method suitable for commercial aquaculture, the method comprising the steps of: (a) at least partially filling a tank (3) with an aqueous medium (13), the tank (3) being adapted for control of the quality of the aqueous medium (13), (b) locating one or more supports (2, 4) in the tank (3), each support (2, 4) being adapted to vertically hold multiple cells (1) containing marine or fresh water organisms, (c) removing one or more supports (2, 4) from the tank (3) to harvest the marine or fresh water organisms wherein a cell (1) is a self-contained unit including a barrier such as a wall to enclose marine or fresh water organisms in a volume of aqueous medium (13) and includes one or more apertures or interstices to facilitate free flow of the aqueous medium (13) between the interior and exterior of the cell (1). Each cell (1) further includes a port for insertion of the marine or fresh water organisms, the port being blocked or restricted when the cell (1) is held by the support (2, 4).