JP2000201564A - Sea surface spat collection/culture cage for abalone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject cage designed to obviate such a problem that, conventionally, a fish preserve has been made using a minnow net and spats have been allowed to adhere to a plastic sheet collector and raised, however, there have been such drawbacks that plastic sheets are broken due to waves, feeding operations are difficult, transplanting works are hard to perform, with the result that culture yield is low, spat growth is retarded, or the like. SOLUTION: This spat collection/culture cage for abalones has such a scheme that, a conically trapezoidal planar plate 1 and a semicylindrical side plate 2 are temporarily tacked together using a minnow net 3; there are provided projections 4 and holes for fixing the system as a whole; waveform plastic shelf boards 5 are so designed that holes for moving spats and seaweed-adhered nets 6 are fixed with projections 7; parent abalones treated with ultraviolet-irradiated seawater are put into wholly perforated small cages 8 and thus allowed to spawn, inseminate, and hatch; the minnow net is combined with the projections into a unit; hatched spats are rooted on seaweeds which serve as a feed for the spats, therefore enabling the spats to be mass-grown; this cage is wave-resistant, thereby protecting the minnow net; seaweeds are grown by making use of spats' excreta as nutrient, supplying oxygen necessary for abalone spats, resulting in increasing hatchability and survival rate; for feeding, a seaweed-adhered net has only to be exchanged; there is no need of feed cost; thus the culture method described above keeps the sea clean.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention provides a method of mounting a moji net on a conical face plate and a semi-cylindrical side plate, and alternately mounting a net with seaweed such as seaweed on a projection of a mountain corrugated shelf. Assemble, UV-irradiated seawater treated, pierced parent abalone,
Put it in a small basket, put it between the face plate and the shelf plate, spawn, fertilize, hatch, settle on the shelf plate and seaweed, and increase the habitation surface,
It is a farming basket that feeds and grows seeds and seedlings.

Conventionally, ikesu was made with a moji net and hatched seedlings were adhered to a policy collector in the ikesu and grown. However, waves caused breakage of sheets, making it difficult to supply food. There were drawbacks, such as difficulty in peeling work during transplantation, poor yield, and slow growth.

According to the present invention, a truncated conical face plate 1 and a semi-cylindrical side plate 2 are provided on the entire surface with a round hole and a hole for temporarily fixing the modular net 3 and for fixing the entire projection 4 to the whole. , A mountain wave type shelf plate 5 integrally formed of plastic, has a hole for transferring seedlings,
It has a projection 7 for fixing the net 6 to which seaweed such as seaweed is attached, and the holes for movement are located at the same position when the shelves are alternately stacked, so that movement is facilitated. Irradiated seawater treatment, parent abalone, with a hole in the whole surface, put in a small basket 8 or a net bag, put it between the face plate and the shelf plate, set up a small basket and a shelf plate to lay eggs, fertilize, hatch , The face plate, the protrusions of the side plate, the moji net is temporarily fixed, the protrusions are combined, fixed with bolts, etc., and integrated, hatched seedlings pass through the shelf plate, side plate, each shelf plate, It inhabits seaweeds such as seaweed and blue seaweed attached to the net and becomes a habitat and feeds on seaweeds, so it can be grown in large quantities. Put a saw into a hole in the column, pour the seedlings immediately after hatching, grow, the basket has anti-wave,
Protect the reef net inside and prevent the escape of seedlings, transplanting only requires replacing the net with seaweed and the shelf board, saving the trouble of peeling work etc., removing the net and replacing the net with seaweed, Can grow up to adult shellfish

[0004] In this way, a moji net is attached to the face plate and the side plate,
If the eggs are laid and hatched in the basket, and if they inhabit the seaweed attached to the shelves and nets, the seaweed grows and supplies the necessary oxygen for the seeds, using the excrement of the seeds and nutrients as nutrients. To improve the hatching rate, increase the survival rate, grow without feeding, protect the moji net from the waves, prevent the escape of seeds and seedlings, transplant the net with seaweed such as seaweed, Replacement of shelves is sufficient, labor for peeling work is eliminated, and no feed is required. Purification of the sea is achieved, and this is a sea-cultured basket for abalone, sea urchin, turtle, sea cucumber, etc.

[Brief description of the drawings]

FIG. 1 is an elevational view showing an embodiment in which a seaweed net and a small basket are installed.

FIG. 2 is an elevational view showing an embodiment with a shelf installed;

FIG. 3 is a perspective view showing an embodiment in which a net and a small basket are installed on a face plate.

FIG. 4 is a perspective view showing an embodiment in which a moji net is installed on a side plate;

FIG. 5 is a plan view of a face plate and a shelf plate;

FIG. 6 is a plan view showing an embodiment in which a seaweed net is partially attached to a shelf board.

Claims (3)

[Claims] 1. An aquaculture basket which can be placed in a small basket, and laid, fertilized, hatched, and raised by a parent abalone treated with ultraviolet irradiation seawater. 2. A net to which seaweed such as seaweed and blue seaweed is attached.
A farming cage that is fixed to the projections of the shelf plate and allows seeds and seedlings to settle on seaweed to increase the breeding ground 3. A cultivation basket, in which projections are provided on a conical face plate and a semi-cylindrical side plate, and a moji net or the like is attached. The assembling cage protects the net from waves and prevents escape of seedlings during assembly.