JP2014075998A - Culture method of seaweed seedling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a culture method of seaweed seedling which makes large-scale culture of seaweed seedling efficient, and realizes cost reduction in culture of seaweed seedling by the efficient large-scale culture of seaweed seedling.SOLUTION: There is provided a culture method of seaweed seedling which comprises a long slim-type water tank 3 whose longitudinal width is narrow in which culture water 2 for culturing seaweed seedling 1 is filled, in which the seaweed seedling 1 is adhered on a surface of a seaweed adherent substrate 5, the seaweed adherent substrate 5 on the surface of which the seaweed seedling 1 is adhered is arranged vertically in the water tank 3 such that the surface of the seaweed adherent substrate 5 faces front and rear faces of the water tank, an LED 11 being a light source 10 for culturing the seaweed seedling 1 is installed so as to face the front and rear faces of the water tank to which the surface of the vertically arranged seaweed adherent substrate 5 faces, and the seaweed seedling 1 adhered on the seaweed adherent substrate 5 is irradiated with light of the LED 11 from the front and rear faces of the water tank 3.

Description

  The present invention relates to a method for culturing seaweed seedlings. The present invention relates to a method for culturing seaweed seedlings that are efficiently cultured.

  Conventionally, as a method for cultivating seaweed seedlings, for example, when cultivating juveniles of Uganomok which is a kind of the seaweed seedling 21, as shown in FIG. 14, a culture water 22 for cultivating seaweed seedlings 21 is added. A shallow water tank 23 having a low height is prepared. The water tank 23 is provided with a lid 24 at the top, and is transparent so that light can pass through. On the other hand, a plurality of seaweed growth substrates 25 on which the cubs of Uganomok are grown are prepared. The seaweed settlement substrate 25 includes, for example, a twisted yarn formed by twisting a yarn and a base plate 26 provided with a plurality of holes through which the twisted yarn is attached to which the twisted yarn is attached. The ganogum cubs are allowed to grow and the twisted yarns are passed through a plurality of holes provided in the base plate 26, so that the stranded yarns of the ganogoku larvae are attached to the base plate 26.

  A plurality of prepared seaweed seedlings 25 on which seaweeds are grown are placed in the culture water 22 of the shallow water tank 23. And the fluorescent lamp 28 which is the light source 27 for cultivating the seaweed seedlings 21 is installed above the water tank 23 in which a plurality of seaweed growth substrates 25 on which the juveniles of Uganomok are grown are arranged. For example, as shown in FIG. 15, a large number of aquariums 23 containing a plurality of seaweed growth substrates 25 on which cubs of Uganomok have grown are placed on a workbench and placed on the workbench. A plurality of fluorescent lamps 28 are installed above a number of placed water tanks 23. Then, the light of the plurality of fluorescent lamps 28 is irradiated to the cubs of ganogoku grown on the seaweed settlement substrate 25 placed in a large number of water tanks 23 placed on the work table, and the cubs of the ganogoku are lit. Is being cultured.

  In such a conventional method for cultivating seaweed seedlings, as described above, a large number of water tanks containing a plurality of seaweed seedlings on which young seedlings of seaweed seedlings are grown are placed on a work table. Therefore, when performing the operation of culturing seaweed seedlings, a very large work space is required, so it is difficult to save space in the work place and make the work equipment compact.

  In addition, as described above, the light of a plurality of fluorescent lamps installed above the workbench is put on each seaweed growth substrate placed in a large number of aquariums placed on the workbench. In order to irradiate the light of the fluorescent lamp uniformly to all the seedlings of ganogoku grown on all the algae growth substrates, it is necessary to install the fluorescent lamp separately, If it is installed in close proximity, the light will be weak, and if it is placed close to it, the growth of the pupae of Uganomok may become uneven, which makes it difficult to cultivate large numbers of seaweed seedlings efficiently.

  For these reasons, there is a problem that in the cultivation of seaweed seeds and seedlings, it is difficult to efficiently mass-produce seaweed seeds and to realize cost reduction by efficient mass cultivation of seaweed seeds and seeds. It was.

  Therefore, in view of these problems, the present invention makes it possible to efficiently mass-cultivate seaweed seedlings, and to achieve cost reduction of cultivation of seaweed seedlings by mass cultivation of this efficient seaweed seedling. It is an object of the present invention to provide a seedling seedling culture method.

  The first invention is provided with a vertically long slim type aquarium with a culture water for culturing seaweed seedlings and having a narrow front and rear width, and the seaweed seedlings are grown on the surface of the seaweed seedling substrate. The algae growth substrate that has grown in the tank is placed vertically in the aquarium so that the surface of the algae growth substrate faces the front and back surfaces of the aquarium, A light source for cultivating seaweed seedlings so as to face the front and back surfaces of the seaweed is installed, and the light of this light source is emitted from the front and back surfaces of the aquarium to the seaweed seedlings that have grown on the seaweed seedling substrate. It is a culture method.

  2nd invention is the culture method of the seaweed seedling which used LED as a light source for culture | cultivating the seaweed seedling installed in the 1st invention so that it may face the front and back of the said water tank.

  According to a third invention, in the second invention, a plurality of the LEDs are prepared, and a plurality of prepared algae seedlings are formed on the surface of the seaweed growth substrate arranged vertically in the water tank. This is a method for culturing seaweed seedlings in which LEDs are arranged so as to face each seaweed seedling.

  According to a fourth invention, in the second and third inventions, in the LED, a plurality of LEDs having different wavelengths of light are set as one set, and the kind of seaweed seedlings in the LEDs of a plurality of colors in an experiment in advance. In addition, the culture data that enables the optimal culture according to the growth stage is obtained, and based on the culture data obtained in this experiment, among the LEDs of multiple colors, depending on the type of seaweed seedling and the growth stage, either alone or in combination This is a method for cultivating seaweed seedlings in which optimum culturing conditions for the optimum LED are determined and seaweed seedlings are cultured based on the determined optimum culturing conditions for the LED.

  According to the present invention, the aquarium is a vertically long slim type with a narrow front and rear width, and the seaweed seedling substrate on which the seaweed seedlings are grown is placed in the water tank so that the surface of the seaweed seedling substrate faces the front and rear surfaces of the water tank. A light source for cultivating seaweed seedlings so that it is placed vertically and facing the front and rear surfaces of the aquarium, and the light from this light source is generated on the surface of the seaweed growth substrate from the front and rear surfaces of the aquarium By irradiating the seedlings and seedlings, it is possible to make the water tank and the light source installed on the side of the tank compact, which can save space in the horizontal direction of the work place. The work equipment can also be made compact.

  Moreover, while using LED as a light source for cultivating seaweed seedlings, a plurality of LEDs are prepared, and a plurality of seaweed seedlings grown on the surface of a seaweed seedling substrate arranged vertically in a water tank are provided. By arranging the LEDs so as to face each other, the light of this LED can be uniformly and efficiently irradiated to all seaweed seedlings grown on the seaweed growth substrate, and the speed at which the seaweed seedlings grow is evenly distributed. Thus, even when a large amount of seaweed seedling is cultured, it can be efficiently cultured. Thereby, cost reduction by mass cultivation of efficient seaweed seedlings can be realized.

  Furthermore, a plurality of LEDs having different wavelengths of light are used as a set, and culture data that enables optimal culture according to the type of seaweed seedling and the growth stage in the LEDs of the plurality of colors in an experiment is obtained in advance. By determining the optimum LED culture conditions based on the conditions and culturing the seaweed seedlings based on the determined LED optimum culture conditions, the growth of the seaweed seedlings can always be controlled well. In addition, the growth period of the seaweed seedling can be greatly shortened as compared with the conventional one, and further efficiency in the cultivation of the seaweed seedling can be achieved.

It is explanatory drawing which shows the growth stage of a seaweed seedling. It is a front view of the water tank in the cultivation method of the seaweed seedlings of the present invention. It is a right view of the water tank in the seaweed seedling culture method of the present invention. It is a perspective view of the water tank in the cultivation method of the seaweed seedling of the present invention. 1 is a perspective view of a seaweed seedling substrate on which a seaweed seedling seedling is grown in the seaweed seedling culturing method of the present invention. FIG. It is a top view which shows the state which has arrange | positioned the seaweed growth substrate in the water tank in the culture method of the seaweed seedling seedlings of this invention. It is a perspective view which shows the state which installed the water tank and the light source in the cultivation method of the seaweed seedling seedling of this invention. It is a perspective view which shows the state which installed the water tank and the light source in the cultivation method of the seaweed seedling seedling of this invention. It is a top view which shows the irradiation state of the light to the seaweed growth substrate arrange | positioned in the water tank in the culture method of the seaweed seedling seedlings of this invention. It is explanatory drawing which shows LED of the light source in the culture method of the seaweed seedling of this invention. It is explanatory drawing which shows the state which installed multiple water tanks and the light source in the culture method of the seaweed seedling seedling of this invention. It is a front view of another seaweed growth substrate in the seaweed seedling culture method of the present invention. It is a perspective view which shows the state which has arrange | positioned another seaweed growth substrate in the water tank in the culture method of the seaweed seedling seedling of this invention. It is a perspective view which shows the state which has arrange | positioned the seaweed growth substrate in the water tank for cultivating the conventional seaweed seedling. It is explanatory drawing which shows the working state for culture | cultivating the conventional seaweed seedling.

One embodiment of the seaweed seedling culture method according to the present invention will be described.
Examples of seaweeds that can be used for the seaweed seedling culture method of the present invention include Uganomok, Fusujimoku, Yoremoku, Sugimoku, Yatsuma Tamoku, Sawtooth Moku, Akamoku, and other Honda, Kosome Kombu, Macombu, Gagome and other combs, wakame, etc. Almost all seaweed. In addition, the seaweed seedling referred to here is, as shown in FIG. 1, a fertilized egg stage, a young embryo stage, a juvenile stage, and a young algal body stage in seaweed.

  First, a water tank 3 containing a culture water 2 for culturing the seaweed seedling 1 is provided, and the culture water 2 to be put into the water tank 3 is basically seawater. 2, 3, and 4, the aquarium 3 is a vertically long slim type that has a high height and a long left and right length but a narrow front and rear width, and has a capacity of about 400 L (liter). is there. However, the capacity is not limited to this. Moreover, even if the width | variety of the water tank 3 is narrow, the seaweed growth substrate 5 which settled the seaweed seedling 1 mentioned later inside can be arrange | positioned in the inside. Further, the water tank 3 is provided with a lid 4 at the top, and is made transparent in order to allow light to pass through.

  On the other hand, the seaweed seedlings 1 are grown on the surface of the seaweed seedling substrate 5, and a plurality of seaweed seedling substrates 5 on which the seaweed seedlings 1 are grown are prepared. The seaweed seedling 1 grown on the seaweed growth substrate 5 is a juvenile body of Uganomok which is a kind of Honda. As shown in FIG. 5, this seaweed settlement substrate 5 is a flat plate made of a synthetic resin in which a plurality of holes 6 through which twisted yarns 6 are formed and twisted yarns 6 are provided and the twisted yarns 6 are attached. The base plate 8 of the seaweed is formed, and the seedling of the ganogumoku on the seaweed growth substrate 5 is formed by sandwiching the ganogum nymph between the twisted yarns 6, By passing the formed twisted thread 6 through a plurality of holes 7 provided in the base plate 8, the twisted thread 6 that has grown an unganomoku juvenile is attached to the base plate 8, so that an unganomoku juvenile grows on the seaweed settlement substrate 5. Like to do.

  Then, the seaweed growth matrix 5 on which the cubs of Uganomok have grown are arranged in a plane in the vertical and horizontal directions, and a plurality of the seaweed growth matrix 5 arranged in the plane is arranged vertically in the water tank 3. The surface of the seaweed settlement substrate 5 comes to face the front and rear surfaces of the aquarium. This is a seaweed in which a plurality of guide pillars 9 having a substantially H-shaped cross section are erected at a predetermined interval at the front and rear center in the water tank 3 at predetermined intervals, and a juvenile Uganomok is grown between the left and right guide pillars 9. By placing the growth matrix 5 so as to be fitted vertically, a plurality of algae growth matrixes 5 in which a juvenile gananomoku has been placed are arranged in the water tank 3 in the vertical direction. In this way, in the aquarium 2, while arranging the seaweed growth substrate 5 vertically and horizontally in a plane, a plurality of the seaweed growth substrates 5 arranged in a plane are arranged vertically.

  At this time, as shown in FIG. 6, by placing two seaweed growth substrates 5 back to back in the water tank 3, the front surface 3 f and the rear surface 3 b of the water tank 3 are placed on the surface of the seaweed growth substrate 5. The grown ganogoku cubs face each other, that is, the surface of the seaweed growth substrate 5 faces the front and rear surfaces of the aquarium. Thereby, for example, five seaweed growth substrates 5 that have grown cubs of Uganomok are arranged vertically and five horizontally in the horizontal direction, and these are arranged so as to face the front surface 3f and the rear surface 3b of the aquarium 3, respectively. By doing so, a total of 50 seaweed settlement substrates 5 can be arranged vertically in the water tank 3.

  Then, a light source 10 for cultivating the seaweed seedling 1 is installed so as to face the front and rear surfaces of the aquarium 3 facing the surface of the seaweed settlement substrate 5 on which the juveniles of Uganomok arranged in the vertical direction face, The light of the light source 10 is irradiated from the front and back surfaces of the aquarium 3 to the young ganogoku grown on the seaweed settlement substrate 5. The LED 11 is used as this light source. The light source 10 is not limited to the LED 11. For example, as shown in FIG. 7, a plurality of straight tube fluorescent lamps 12 may be used.

  The case where LED11 is used for this light source 10 is demonstrated. First, a plurality of LEDs 11 are prepared, and a plurality of prepared ganogoku juveniles are formed on the surface of a plurality of seaweed growth substrates 5 arranged vertically and horizontally in a water tank 3 and arranged vertically. The LEDs 11 are arranged so as to face each of the cubs of Uganomok. As shown in FIG. 8, two mounting boards 13 having a size slightly smaller than the height and left and right length of the water tank 3 are provided, and a plurality of LEDs 11 are arranged on the mounting board 13 at predetermined intervals. Install. Then, as shown in FIG. 9, by installing the mounting board 13 to which the plurality of LEDs 11 are attached so as to face the front and rear surfaces of the water tank 3, the plurality of LEDs 11 attached to the mounting board 13 are installed in the water tank. 3 are arranged so as to be opposed to the juveniles of Uganomok grown on the surface of a plurality of seaweed settlement substrates 5 arranged vertically and horizontally in the plane.

  In this way, a plurality of LEDs 11 are arranged so as to be opposed to each of the juveniles of Uganomok grown on the surface of the seaweed growth substrate 5 arranged vertically in the water tank 3, so that the direction of the LEDs 11 in the light is directed. Due to its high characteristics, it is possible to irradiate the light of the LED 11 uniformly and without waste to the larvae of the ganogoku grown on all the seaweed growth substrates 5, and to achieve energy-saving and energy-saving, as well as seaweed seedlings 1 speed of growth can be equalized. Although the plurality of LEDs 11 are arranged so as to face each of the cubs of Uganomok, if it is possible to irradiate the light of the LED 11 uniformly to some extent, a plurality of cubs of Uganomok, for example 4 One LED 11 may be arranged so as to oppose the single Uganomoku juvenile, and the light of one LED 11 may be irradiated to four Uganomok juveniles.

  Further, in the LED 11 mounted on the mounting board 13, as shown in FIG. 10, a set of LEDs of different colors having different wavelengths of light, for example, red LED 11r, blue LED 11b, green LED 11g, white, A set of four-color LEDs having different wavelengths of light, such as the LED 11w, is attached. The light wavelengths of these four colors of LEDs are generally around 660 nm for the red LED 11r, around 450 nm for the blue LED 11b, around 520 nm for the green LED 11g, around 445 nm and around 555 nm for the white LED 11w.

  And in this multi-color LED, the culture | cultivation data which enable the optimal culture | cultivation according to the kind and growth stage of the seaweed seedling 1 are previously calculated | required in experiment. This is the result of extensive research by the inventors of the present application. In addition, it has been found that the growth speed of the seaweed seedling 1 varies depending on the wavelength of the irradiated light, depending on the growth stage of the fertilized egg, young embryo, young body, and young alga body.

  Therefore, in all these types and growth stages, the light wavelength at which the seaweed seedling 1 grows at the fastest speed is found in advance in an experiment, and this can be optimally cultured according to the type of seaweed seedling 1 and the growth stage. It is obtained as culture data for Note that the culture data includes the temperature of the culture water 2 and the irradiation time.

  Based on the culture data obtained in advance in this experiment, the red LED 11r, the blue LED 11b, the green LED 11g, and the white LED 11w alone are selected according to the type and the growth stage of the seaweed seedling 1 out of four color LEDs having different wavelengths of light. Alternatively, an optimum LED by combination is selected, for example, the red LED 11r alone or the red LED 11r and the white LED 11w are combined. Then, the selected one is determined as the optimal culture condition of the LED 11 that is optimal, and the light of the LED 11 is irradiated based on the determined optimal culture condition of the LED 11 to culture the juvenile Uganomok. In short, the seaweed seedling 1 To be cultured. In addition, by using four-color LEDs having different wavelengths of light, such as red LED 11r, blue LED 11b, green LED 11g, and white LED 11w, a desired light wavelength from about 430 nm to about 680 nm is created by combining these alone or in combination. be able to.

  As described above, the optimum culture condition of the LED 11 that is optimum based on the culture data obtained in advance in the experiment is determined, and the seaweed seedling 1 is cultured based on the determined optimum culture condition of the LED 11, thereby obtaining the seaweed seedling. The growth of 1 can be controlled well. For example, in the case of a pupa of Uganomok, the conventional growth method can shorten the growth period from about 4 to 5 months to 2 to 3 months. Moreover, the cost at that time can also reduce power consumption by 50% by using LED11 for a light source, and can reduce 40 to 50% as a whole. Moreover, in the case of a kombu juvenile, it can be shortened to 30 to 40 days from the long-life period of about 60 days in the conventional culture method. That is, the growth period of the seaweed seedling 1 can be significantly shortened compared to the conventional one.

  Further, the water tank 3 is made into a vertically long slim type having a narrow front and rear width, and the seaweed seedling substrate 5 on which the seaweed seedlings 1 are grown is arranged so that the surface of the seaweed seedling substrate 5 faces the front and rear surfaces of the water tank 3. In which the light source 10 using the LED 11 for cultivating the seaweed seedling 1 is placed so as to face the front and rear surfaces of the water tank 3 in a vertical orientation, a more efficient seaweed seedling 1 In order to enable large-scale culture, for example, as shown in FIG. 11, by installing a plurality of upper and lower, right and left, multiple left and right, it is possible to culture the seaweed seedling 1 efficiently in a narrow space. It may be possible to further improve the mass cultivation of the seaweed seedling 1 by reducing the work space and making the entire work facility compact.

  As described above, the aquarium 3 is a vertically long slim type having a narrow front and rear width, and a plurality of the aquariums 3 are installed, so that the aquarium 3 can be dispersed and miniaturized in mass culture of the seaweed seedling 1, for example, When large-scale culture of seaweed seedling 1 is performed in a large aquarium, if contamination (contamination) occurs, it may occur in the entire aquarium and adversely affect all the seaweed seedling 1 By miniaturization, even if contamination (contamination) occurs, there is no risk of adversely affecting other aquariums 3 only by the aquarium 3, and if it is used for mass cultivation of seaweed seedlings 1, It can be done well.

  Next, another embodiment of the seaweed seedling culturing method according to the present invention will be described. It is basically the same as the above-described embodiment, but the seaweed growth substrate 5 disposed vertically in the water tank 3 and this The seaweed seedling 1 that grows on the surface of the seaweed settlement substrate 5 is different from that of the above-described embodiment.

  First, the seaweed seedling 1 is a macomb, which is in the stage of a fertilized egg, a young embryo, or a young body in this macomb. And the water tank 3 is a vertically long slim type with a narrow front-rear width as in the above-described embodiment.

  On the other hand, as the seaweed settlement substrate 5 disposed vertically in the aquarium 3, as shown in FIG. 12, a synthetic resin having a slightly smaller size than the height and left and right length of the aquarium 3 and having an inverted T-shaped cross section. The plate 15 and a twisted yarn 16 made by twisting a yarn that is wound around the plate 15 in the vertical direction without a gap, are fixed to the left and right sides of the water tank 3. And the fertilization of the fertilized eggs of the macaw on the seaweed growth substrate 5 is directly grown on the twisted yarn in which the fertilized eggs of the macaw are wound around the plate 15 in the vertical direction.

  And, in the seaweed growth substrate 5 on which the fertilized eggs of Macombu are grown, the whole consists of a twisted thread 16 that directly grows the fertilized eggs of Macombu and a plate 15 around which the twisted thread 16 is wound. And is arranged vertically in the water tank 3. As a result, the fertilized eggs of Macombe that have grown on the surface of the seaweed growth substrate 5 face the front surface 3f and the rear surface 3b of the water tank 3, respectively, that is, the surface of the seaweed growth substrate 5 faces the front and back surfaces of the water tank 3. Become.

  Then, as in the above-described embodiment, as shown in FIG. 13, the seaweed faces the front and rear surfaces of the aquarium 3 facing the surface of the seaweed settlement substrate 5 on which the fertilized eggs of the macombu arranged in the vertical direction are directed. An LED 11, which is a light source 10 for cultivating the seedling 1, is installed, and the light of the LED 11 is irradiated from the front and rear surfaces of the aquarium 3 to the fertilized eggs of the macaw that have grown on the surface of the seaweed growth substrate 5. In this case, the fertilized egg is allowed to grow from a young embryo to a young embryo.

  DESCRIPTION OF SYMBOLS 1 ... Seaweed seedling, 2 ... Cultured water, 3 ... Aquarium, 3f ... Front surface, 3b ... Rear side, 4 ... Cover, 5 ... Seaweed growth substrate, 6 ... Twist thread, 7 ... Hole, 8 ... Base plate, 9 ... Guide pillar, DESCRIPTION OF SYMBOLS 10 ... Light source, 11 ... LED, 11r ... Red LED, 11b ... Blue LED, 11g ... Green LED, 11w ... White LED, 12 ... Fluorescent lamp, 13 ... Mounting board, 15 ... Plate, 16 ... Twist thread, 21 ... Seaweed Seedlings, 22 ... cultured water, 23 ... water tank, 24 ... lid, 25 ... seaweed growth substrate, 26 ... base plate, 27 ... light source, 28 ... fluorescent lamp

Claims (4)

While having a vertically long slim type aquarium 3 with a narrow front and rear width containing culture water 2 for cultivating seaweed seedling 1,
The seaweed seedling 1 is grown on the surface of the seaweed seedling substrate 5, and the seaweed seedling substrate 5 is grown on the surface so that the surface of the seaweed seedling substrate 5 faces the front and rear surfaces of the aquarium. Placed vertically in the aquarium 3,
A light source 10 for cultivating the seaweed seedling 1 is installed so as to face the front and rear surfaces of the aquarium where the surface of the seaweed growth substrate 5 arranged in the vertical direction faces, and the light from the light source 10 is used as the front and rear surfaces of the water tank 3. A method of cultivating a seaweed seedling seedling 1 characterized in that the seaweed seedling seedling 1 grown on the surface of the seaweed seedling substrate 5 is irradiated.   The method for cultivating seaweed seedlings according to claim 1, wherein the LED 11 is used as the light source 10 for culturing the seaweed seedlings 1 installed so as to face the front and rear surfaces of the water tank 3.   A plurality of the LEDs 11 are prepared, and a plurality of LEDs 11 prepared for each seaweed seedling 1 grown on the surface of the seaweed seedling substrate 5 arranged vertically in the water tank 3 are provided one by one. The method for cultivating a seaweed seedling according to claim 2, wherein the seedling is disposed so as to face the seaweed. In the LED 11, a set of LEDs of different colors having different wavelengths of light is set,
In the experiment, culture data that enables optimal culture according to the type and growth stage of the seaweed seedling 1 in the multi-color LED is obtained in advance, and the seaweed is selected from the multi-color LEDs based on the culture data obtained in this experiment. According to the type of seedling 1 and the growth stage, the optimum culture condition of the LED 11 that is optimal individually or in combination is determined, and the seaweed seedling 1 is cultured based on the determined optimum culture condition of the LED 11. The method for culturing seaweed seedlings according to claim 2 and 3.

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