JPH01228421A - Preservation of shellfishes and crustaceans - Google Patents

Abstract

PURPOSE:To decrease the absolute amount of necessary sea water, to reduce the consumption of electric power and to reduce the preservation cost by preserving shellfishes and crustaceans in a mist thermostatic chamber action by the release of low-temperature mist and oxygen. CONSTITUTION:Ark shell 1 is put into a plastic basket 2 and placed at the center of a mist thermostatic chamber 3. Sea water in a water-replenishing tank 4 is transferred with a pressure pump 5 through a water pipe 6 and a valve 7 and sprayed in the form of mist from a mist nozzle 8. At the same time, oxygen is transferred from an oxygen bomb 9 via a pressure-regulation valve 10 and released through an ejection nozzle 11. The temperature in the chamber is maintained at a low level with a cooler 12.. The required amount of sea water can be decreased, and the electric power consumption for the pumping, cleaning, temperature-control, etc., of water can be saved to enable the reduction of the preservation cost.

Description

Detailed Description of the Invention (a) Industrial field of application The shellfish and crustacean farming method according to the present invention is a farming technique for providing live shellfish and crustaceans to consumers in the distribution of water resources. This is related to the practical application of

(b) Conventional technology Live fish distribution of aquatic fish and shellfish is beginning to occupy a large part of the market share of conventional fresh fish distribution. Among them, the technology of keeping shellfish and crustaceans alive in aquariums has been well established, but maintenance and management to prevent seawater pollution is costly, resulting in significant consumer costs.

(c) Problems to be solved by the invention As studies of the ecology of shellfish and crustaceans have progressed, the seawater necessary for the survival of these creatures is not limited to the amount of water that is kept immersed, but the oxygen in the water is absorbed through respiration. The aim is to solve this problem by discovering that the required lockstitching can be used to survive.

(d) Means to solve the problem When raising shellfish and crustaceans, a mist thermostatic chamber is used to maintain the internal temperature at a low temperature of 5℃ to 20℃ using a cooler, and seawater is pumped in using a pressure pump. It ejects oxygen in the form of a mist, creating an oxygen-rich mist atmosphere at a low temperature of 5°C to 20°C, and suppressing metabolic faeces of shellfish and crustaceans, allowing them to fully survive.

(E) Function The method for cultivating shellfish and crustaceans according to the present invention departs from the conventional method of immersing them in seawater and carries out the culturing using a mist thermostatic chamber by supplying low-temperature mist and oxygen. According to the method of this invention, the inside of the constant temperature mist chamber is lowered by a cooler)
- Maintain the atmosphere at 5°C to 20°C? It! A pressure pump is used to eject wood into a mist, and at the same time, it releases oxygen to maintain an environment in which shellfish and crustaceans can survive. Compared to the conventional method of heavy loading using an aquarium, this method significantly reduces the amount of water and has major benefits such as saving energy for pumps, blowers, etc., and reducing wastewater treatment costs along with pollution prevention.0For example, according to test data by Akagai Put 20 red shellfish (average 50g each) in a plastic basket.
In the center of the mist temperature chamber ■ Seawater from the supply water tank @
Using a pressure pump, it passes through ■the water pipe and ■the valve, and ■is sprayed out in the form of a mist by the mist nozzle. At the same time, from the oxygen cylinder [
phase] It is released from the 0 jet nozzle through the pressure regulating valve, and the @ cooler maintains the temperature inside the tank at a low temperature of 15°C. As a result, the survival of the red shellfish 8
A confirmed 15 days.

(f) Effects of the Invention As mentioned above, the present invention is capable of pumping, purifying, and purifying water using a significantly smaller absolute amount of seawater than the conventional seawater immersion method.
The labor savings in water temperature regulation and electric power energy are enormous, and when compared to the middle net overall, the effect is 1/30, which greatly contributes to cost reduction through labor savings.

[Brief explanation of the drawing]

FIG. 1 is an overall view showing an embodiment of the method for layering μ and crustaceans according to the present invention.

Claims (1)

[Claims] A method for raising shellfish and crustaceans, which is characterized by raising shellfish and crustaceans in a constant temperature mist storage using low-temperature mist and oxygen release.