JPS60255706A - Treating agent for growing marine large-sized alga - Google Patents

Abstract

PURPOSE:The titled treating agent, containing a germanium compound as an active constituent, capable of selectively removing marine adhesive algae growing on fishing nets or ropes and promoting efficiently the growth thereof without effecting large-sized algae, e.g. WAKAME seaweeds, AMANORI, etc., and useful for growing and culture. CONSTITUTION:A treating agent containing a germanium compound, e.g. germanium dichloride, germanium tetrachloride, germanium tetrafluoride, germanium dioxide, germanium hydroxide or orthogermanic acid, etc. as an active constituent. The above-mentioned compounds are contained as the treating agent in the form of an aqueous solution, suspension, emulsion or a paint containing a natural resin such as solid pine resin, e.g. abietic acid, or a synthetic resin, e.g. acrylic resin or epoxy resin, etc. as a vehicle. The amount of the germanium to be incorporated in the treating agent is <65wt%. The above-mentioned agent dipped in weir nets before planting of spores of the large-sized algae or impregnated by coating and dried for treatment. The spores are then applied to the nets, and sunk in a culture sea area after the planting of the spores.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a treatment agent for growing marine macroalgae containing a germanium compound as an active ingredient and used for cultivating macroalgae such as wakame seaweed, seaweed, seaweed, and seaweed.

Cultivation of macroalgae (hereinafter referred to as macroalgae) such as wakame seaweed, Susabi nori, 7-manori, and Asakusanori has been practiced in Japan for a long time.

All of these cultivation methods are carried out by attaching spores of macroalgae to be cultivated to bottom nets or ropes, and immersing them in the sea.

However, due to oceanization, there are many sessile organisms that compete with macroalgae and suppress the proliferation of macroalgae. In particular, the sessile unicellular algae Ach.
vanthes), Gomphove
ma) Cocconelg, Hantzschia, Navicula, Hltz
sehia), Pleurosigm
a) Diatoms such as Gyroslgma and Baclla-ria are algae similar to macroalgae and are single-celled organisms, so if you submerge their apex or peak, At the same time as the sea, they attach themselves to cotton and rope and begin to multiply. Therefore, when cotton or rope with macroalgae spores attached is soaked in the sea, diatoms compete with the macroalgae on the straw net or rope and proliferate. However, effective control techniques for these attached diatoms have not been established, although they cause damage such as reduction in the growth of algae after germination, and death.

As a result of intensive research into the above-mentioned problem, the present inventors succeeded for the first time in selectively removing these marine-adhering diatoms without affecting the macroalgae, thereby allowing macroalgae to proliferate with high efficiency.

That is, the present invention is a marine macroalgae growth treatment agent containing a germanium compound as an active ingredient.

The germanium compounds used in the marine macroalgae growth treatment agent (hereinafter referred to as treatment agent) of the present invention include germanium dichloride,
Germanium tetrachloride, germanium tetrachloride, germanium dioxide, germanium hydroxide, orthogermanic acid, etc., which are contained as treatment agents in the form of aqueous solutions, suspensions, emulsions, or paints using natural or synthetic resins as vehicles. . The amount of germanium compound blended in the processing agent is less than 65%, preferably 01~
50i1 is in the range of 1%. If the amount exceeds this upper limit, it will be difficult to emulsify or form a coating, and if it is less than the lower limit, no effective effect will be exhibited.

Vehicles used in the treatment agent of the present invention include natural resins such as solid pine resin made of abietic acid, and synthetic resins such as acrylic resins, epoxy resins, vinyl chloride resins, chlorinated rubber resins, and butyral resins.

Examples of the solvent used in the treatment agent of the present invention include water, methyl alcohol, alcohol, isopropyl alcohol, n-butyl alcohol, mineral spirit,
Solvent naphtha, toluene, xylene, methyl isobutyl ketone, Schiff-hexanone, acetic acid ethyl ester,
Examples include butyl acetate, and these are used as appropriate depending on the vehicle component.

In addition, the processing agent of the present invention further includes titanium oxide, iron oxide, carbon black, phthalocyanine blue, phthalocyanine green, carmine oxide, inorganic and organic coloring pigments, thiazole dyes, azo dyes, carbonium dyes, acridine dyes, nitroso dyes, and indigoids. Dyes such as dyes and anthraquinone dyes, extender pigments such as talc, mica, calcium carbonate, and magnesium carbonate, and additives such as suspending agents, leveling agents, and color separation inhibitors can be used.

The processing agent is manufactured by charging the above-mentioned components into a container and dissolving, emulsifying or dispersing them using a dispersing machine such as a disperser, attritor, sand grinder, or ball mill to obtain the processing agent of the present invention.

Treatment agents in the form of aqueous solutions are used when a strong effect is provided in a short period of time, while treatment agents using a vehicle are used when long-term effects are required.

The method of using the treatment agent is to inoculate macroalgae spores by impregnating them with a net or rope, dipping or coating, and then drying. The impregnated streaks and P-p are attached with macroalgae spores, and after the spores are planted, they are immersed in aquaculture area traps.

By using the treatment agent of the present invention, the germanium compound selectively removes marine-adhering diatoms that grow on fibers and ropes due to wilt during sea immersion, so the proliferation of macroalgae becomes very active and It can be multiplied with high efficiency with a yield several times to several times that of the previous year.

The present invention will be explained below with reference to Examples and Comparative Examples.

Chi in the example represents weight.

Examples 1 to 13, Comparative Example 1 a, and the raw materials of Utility Model Application No. 1.2.3.6.7.8 whose formulations are shown in Table 1 were placed in a #4 container and dispersed using a disper. , the processing agent of Example 1.2.3.6.7.8 was obtained.

b. In Examples 5.11.12 whose formulations are shown in Table 1, a surfactant was added to distilled water using a steel container, dissolved by stirring with a disper, and solid pine resin and synthetic resin xylene were added. The solution was gradually added and emulsified, and then the remaining ingredients were added and dissolved in a dispersion funnel to obtain the processing agent of Example 4.9.10.

Using the treatment agents of Examples 1 to 13 obtained, five synthetic resin Kameoka tubes each having a size of 1.2 x 1.2 m were immersed and air-dried (impregnation treatment was performed). Subsequently, the treated net was preliminarily treated with Juncoceris (Co
The oyster shells in which the oyster shells (E. attached to the net.

In addition, as a comparative example, using an ant net that was not impregnated with a treatment agent of the same quality and size as in the example, five consecutive seedlings of 7.

The five test nets of Examples 1 to 13 and Comparative Example 1 were submerged in the sea at Yoshiko, Sumoto City, Hyogo Prefecture, and after one month of submergence, they were pulled up and the Asakusa nori were picked by hand, and the dry weight was determined. Comparative Example 1 (untreated all mesh) was used as 1 for comparison. The values are shown in Table 2.

At the same time, marine attached diatoms adhering to the surface from the apex line 1aII were counted by type. The results are shown in Table 3.

The number of diatoms was calculated as the adhesion amount per calculated surface area assuming that the line cross section was a perfect circle.

As is clear from Table 2, Examples 1 to 13 show yields 6 to 11 times higher than Comparative Example 1. Furthermore, as is clear from Table 3, the number of diatoms in Examples 1 to 13 is zero or very small compared to Comparative Example 1.

As explained in detail above, the marine macroalgae growth treatment agent of the present invention selectively removes marine-adhering diatoms that adhere to fishing nets and suppress the proliferation of macroalgae, and extremely efficiently inhibits the growth of marine macroalgae such as Asakusanori. can be promoted.

Patent applicant: NOF Corporation

Claims (1)

[Claims] Marine macroalgae growth treatment agent containing germanium compounds as an active ingredient