JP2002186376A - Raising facility for bivalves - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulating filtration-type raising facility for bivalves aiming principally at harmonizing the ambience enabling healthy bivalves to be raised as a raising facility for bivalves as a plankton feeder having been difficult to raise in conventional terrestrial raising facilities. SOLUTION: This raising facility for bivalves comprises a raising area divided by a perforated interlaid plate and a water flow channel at the bottom, and is characterized in that dirt deposited along the water flow channel is continuously brought into a filtration tank by the aid of circulating water flow, therefore the inside of the raising facility is always kept clean; furthermore it is also characteristic that while the raising area is fed, by a circulating pump, with clean seawater passed through a filter, raising water can be circulated without passage through the filtration tank by manipulating a level control pipe for the purpose of efficient bait-taking in baiting activities.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a plankton
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating filtration type breeding apparatus mainly for harmonizing breeding environments in order to grow feeder bivalves for a long time.

[0002]

2. Description of the Related Art Bivalves (pearl oysters, ghosts, oysters, etc.) that grow in nature by being fixed to rocks on the seabed perform life metabolism by the flow of the tide. Setting of typical living environment has been neglected. In addition, when breeding for a long time in a closed circulating filtration type breeding device, waste such as excrement and residual food must be properly separated and processed from the breeding area, and removed. Such considerations are often lacking.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and focuses on the ecology and living environment of bivalves living in nature. The purpose of the present invention is to provide a facility capable of cultivating bivalves for a long period of time by satisfying breeding environment conditions close to nature.

[0004]

In order to achieve this object, the breeding facility is separated into two parts: a breeding area and a water passage for removing accumulated dirt such as feces and residual food. . In addition, the circulating pump secures the “flow” of clean water in the breeding area, which helps the shellfish to metabolize life, and furthermore, spreads the food floating in the ventilation tube evenly, increasing the feeding efficiency. It is characterized by having constructed a system. In addition, in order to prevent the feed from being inadvertently removed from the breeding area during feeding by the filtration circulation of the breeding water, and at the same time, to maintain the water flow necessary for the metabolism of the shellfish, the breeding water is maintained using a water level adjustment tube. A circulation bypass is provided.

[0005] The other is a bottom water passage divided by an insole plate, which is characterized in that feces and residual food deposited there are guided to a filtration tank by a water flow of a circulating pump, so that a clean breeding environment can always be secured. And

[0006] The trap net in the primary filtration tank removes large filth and residual food, and at the same time, the properties of feces and residual food can be observed. Biological filtration is performed in conjunction with physical filtration in the secondary filtration tank, and in the pool where purified water accumulates, water temperature adjustment capable of both heating and cooling can be performed according to the ecology of the shellfish. In such water quality management, water suitable for breeding is always supplied to the breeding area.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a plan view of the breeding facility with the insole plate (multi-hole plate) {12} removed. This facility is equipped with two circulation pumps (P1, P2) that circulate breeding water for environmental adjustment and management in cooperation with the filtration tank. Pump P1 is used for normal filtration and circulation, and purified water is used. The filtered seawater is supplied from the pool at a flow rate suitable for the metabolism of the shellfish through the outlet of the breeding area (10). Also, breeding area ▲ 10
Curved guides (11) are attached to the four corners of (▼) to assist the water flow, and a center part of the insole plate (multi-hole plate) (12) shown in FIG. 2 and FIG. The flow velocity can be promoted along the direction of the water flow.

By removing the detachable water level adjusting pipe (13) shown in FIGS. 3 and 4, the breeding water can be circulated without passing through the filtration tank and supplied to the breeding area (10).

The pump P2 is for treating waste, and circulates water by discharging water from water outlets provided at two locations on the left and right of the bottom as shown in FIG. The filth such as excrement collected by this water flow enters the “filtration trap” through the water pipe shown in FIG. 2 and FIG. 5, and collects and removes large feces and residual food, and raises the breeding water. Is sent to the secondary filtered water tank-2 shown in FIG. 1 and FIG. Further, the purified water is introduced into a pool, and the temperature of the water is also adjusted by a temperature controller (14) capable of both cooling and heating.

The air discharged from the elongated ventilation pipe shown in the center of FIG. 1 serves both for replenishing oxygen and flowing water, and agitates breeding water to remove floating feed such as plankton. Evenly dispersed, the speed at which the food sinks can be saved.

[0011]

According to the present invention, if bivalves can be grown for a long time in a land-based breeding facility, for example, pearl oysters will be able to stably produce pearls of excellent quality, which is an advantage for those involved in aquaculture in unstable fishing ground environments. There is something we can't imagine. In addition to these practical economic effects, the research and research institute handling the shellfish will make a great contribution to tests and research such as ecological survey of bivalves, and will have extremely novel and beneficial effects. is there.

[0012]

[Brief description of the drawings]

FIG. 1 is a plan view of a breeding facility (circulation filtration type water tank)

FIG. 2 is a side view

Fig. 3 Insole board with rearing section and bottom section separated

FIG. 4 is a sectional view taken along the line AA of FIG. 1;

FIG. 5 is a sectional view taken along the line BB of FIG. 1;

FIG. 6 is a sectional view taken along the line CC of FIG. 1;

[0013]

[Explanation of symbols] Outlet of breeding area Bottom water channel Bottom water outlet Water pipe Waste collection trap Filtration tank -1 Primary filtration tank -2 Secondary filtration tank Water purification pool Central partition plate Ventilation pipe ▲ 10 ▼ Rearing area ▲ 11 ▼ Curve guide ▲ 12 ▼ Insole plate (multi-hole plate) ▲ 13 ▼ Water level adjusting pipe ▲ 14 ▼ Temperature controller

Claims (3)

[Claims] 1. A breeding device for shellfish, in a breeding area divided by an insole plate of a multi-hole plate, to secure a constant water flow required for daily metabolism and to use a part of the insole plate as an auxiliary device for maintaining the flow rate. The structure of the facility that was used as a mattress. 2. A breeding apparatus for shellfish, wherein a floating food such as plankton is uniformly diffused in a breeding area at the time of feeding, and a breeding water containing the feed is bypassed with a water level adjusting pipe so as not to pass through a filtration tank. A mechanism with a circulation path. 3. A facility structure in which a water passage is provided at the bottom of the breeding aquarium so that feces and residual food can be collected and collected by a circulating water flow.