JP2017147995A - Culture method of caulerpaceae caulerpa green algae - Google Patents

Culture method of caulerpaceae caulerpa green algae Download PDF

Info

Publication number
JP2017147995A
JP2017147995A JP2016034119A JP2016034119A JP2017147995A JP 2017147995 A JP2017147995 A JP 2017147995A JP 2016034119 A JP2016034119 A JP 2016034119A JP 2016034119 A JP2016034119 A JP 2016034119A JP 2017147995 A JP2017147995 A JP 2017147995A
Authority
JP
Japan
Prior art keywords
iwazuta
algae
wavelength region
light
green algae
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2016034119A
Other languages
Japanese (ja)
Other versions
JP6621341B2 (en
Inventor
井上　顕
Akira Inoue
顕 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Okinawa Prefectural Government
Original Assignee
Okinawa Prefectural Government
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Okinawa Prefectural Government filed Critical Okinawa Prefectural Government
Priority to JP2016034119A priority Critical patent/JP6621341B2/en
Publication of JP2017147995A publication Critical patent/JP2017147995A/en
Application granted granted Critical
Publication of JP6621341B2 publication Critical patent/JP6621341B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

Abstract

PROBLEM TO BE SOLVED: To provide a culturing method capable of selectively suppressing the proliferation of miscellaneous algae, such as diatom and blue-green algae, without hindering the growth of Caulerpaceae Caulerpa green algae.SOLUTION: A culture method of Caulerpaceae Caulerpa green algae using sunlight is characterized by shielding with a covering material whose transmittance of the light in a wavelength region of 400 to 550 nm is 30 to 60% and whose transmittance of the light in a wavelength region of 600 to 700 nm is 75% or more.SELECTED DRAWING: Figure 3

Description

本発明は、イワズタ科イワズタ属緑藻の養殖方法に関し、さらに詳細には、特定領域の波長の光を選択的に遮蔽することによって、珪藻や藍藻などの雑藻の繁殖を抑制することができ、品質の向上と収穫量の増加を実現し得る養殖方法に関する。   The present invention relates to a method for cultivating the Iwazuta family Iwazuta genus green algae, and more specifically, by selectively blocking light of a wavelength in a specific region, it is possible to suppress the propagation of miscellaneous algae such as diatoms and cyanobacteria, The present invention relates to an aquaculture method capable of improving quality and increasing yield.

クビレズタ（Caulerpa lentillifera）は、緑藻綱アオサ目イワズタ科イワズタ属に属し、国内では南西諸島、国外ではフィリピン、ミクロネシア、紅海等に分布する。沖縄では主に宮古島において古くから食用海藻として利用されてきた。クビレズタは、直立した直立枝とそこに多数の小さな球状の小枝からなる葉状部、海底をはうことに適した匍匐茎、固定の役目をする仮根からなり、その形態や食感から海ぶどうと呼ばれ、近年需要が増加している。イワズタ属緑藻は、有性繁殖と栄養繁殖の2つの増殖形態をもつ。有性繁殖は、成熟後環境変化に伴い直立した葉状部の小枝が変色し雌性部に、小枝基部や直立枝が変色し雄性部になり、それぞれから配偶子を放出し接合したのち、藻体へと生長する形態をもつ。栄養繁殖は伸長した藻体の断片が無性的に成長して新たな藻体となる形態をもつ。クビレズタでは、この栄養繁殖を利用した陸上養殖が行われている。 Cubirezta ( Caulerpa lentillifera ) belongs to the genus Iwazuta, a green alga class, and is distributed in the Nansei Islands, and in the Philippines, Micronesia, Red Sea, etc. In Okinawa, it has been used mainly as an edible seaweed for a long time in Miyakojima. Kubirezta is composed of upright branches and leaves, which are made up of many small spherical twigs, stems suitable for crawling the seabed, and temporary roots that serve as anchors. In recent years, demand has increased. Iwazuta green algae have two growth forms, sexual and vegetative. In sexual reproduction, as the environment changes after maturation, the twigs of the upright foliage change color to the female part, and the twig base and upright branch change to male part, releasing gametes from each, and then joining the alga body It has a form that grows. Vegetative propagation has a form in which elongated algal body fragments grow asexually into new algal bodies. In Kubirezta, land culture using this vegetative breeding is carried out.

クビレズタの陸上養殖において、一般に、小枝の密度が高く形体の良好な藻体のみが出荷され、小枝がまばらな藻体は食感が悪く消費者に好まれないため出荷されない。しかし、このような藻体も培養を継続することにより、小枝が密生した状態になり得るため、栄養繁殖をするための元株として利用することができる。一方、珪藻や藍藻などの雑藻が繁茂してクビレズタに付着すると、これを取り除くことは困難であるため、出荷することも元株として利用することもできず、廃棄処分せざるを得ない。特に水温が高くなる夏季は、このような雑藻が繁茂しやすいため、廃棄処分する量が増加し、収穫量及び歩留りが減少していた。また雑藻が付着した藻体の選別は手作業によるため、その作業負担の増大により生産効率が低下していた。   In terrestrial aquaculture, only algae with high twig density and good shape are shipped, and algae with sparse twigs are not shipped because they are unpleasant to the consumer and are not preferred by consumers. However, such algae can also be used as a source strain for vegetative propagation because the twigs can become dense by continuing the culture. On the other hand, when miscellaneous algae such as diatoms and cyanobacteria grow and adhere to the firefly, it is difficult to remove them, so they cannot be shipped or used as original stocks and must be disposed of. Especially in the summer when the water temperature is high, such miscellaneous algae tend to proliferate, increasing the amount to be disposed of and reducing the yield and yield. In addition, since the selection of algal bodies to which miscellaneous algae adhere is manual, production efficiency has been reduced due to an increase in the work load.

本発明は、イワズタ科イワズタ属緑藻の生育を妨げることなく、珪藻や藍藻など雑藻の増殖を選択的に抑制することが可能な養殖方法を提供することを課題とする。   An object of the present invention is to provide an aquaculture method capable of selectively suppressing the growth of miscellaneous algae such as diatoms and cyanobacteria without hindering the growth of Iwazuta family green algae.

本発明者らは鋭意検討を重ねた結果、イワズタ科イワズタ属緑藻の養殖において、特定領域の波長の光量を相対的に減少させることによって、イワズタ科イワズタ属緑藻の光合成を阻害することなく、藍藻や珪藻等の雑藻の増殖を選択的に阻害できることを見出し、本発明を完成するに至った。   As a result of intensive studies, the inventors of the present invention, in the cultivation of Iwazuta family Iwazuta green algae, by relatively reducing the amount of light of the wavelength of the specific region, without inhibiting the photosynthesis of Iwazuta family Iwazuta green algae, cyanobacteria The inventors have found that the growth of miscellaneous algae such as diatoms and diatoms can be selectively inhibited, and have completed the present invention.

すなわち本発明は、太陽光を利用したイワズタ科イワズタ属緑藻の養殖方法であって、４００〜５５０ｎｍの波長領域の光の透過率が３０〜６０％であり、６００〜７００ｎｍの波長領域の光の透過率が７５％以上である被覆資材で遮光することを特徴とするイワズタ科イワズタ属緑藻の養殖方法である。   That is, the present invention is a method for cultivating a green alga of Iwazuta family using sunlight, wherein the light transmittance in the wavelength region of 400 to 550 nm is 30 to 60%, and the light in the wavelength region of 600 to 700 nm is transmitted. It is a method for cultivating Iwazuta family Iwazuta green algae, which is shielded from light with a covering material having a transmittance of 75% or more.

本発明によれば、イワズタ科イワズタ属緑藻の光合成を阻害することなく、藍藻や珪藻等の雑藻の増殖を選択的に抑制することができる。このため、イワズタ属緑藻の品質が向上するとともに、元株として利用できる藻体の割合が高くなり、収穫量及び歩留りが向上する。また選別作業が軽減され、生産効率が改善される。   According to the present invention, it is possible to selectively suppress the growth of miscellaneous algae such as cyanobacteria and diatoms without inhibiting the photosynthesis of the Iwazutaceae green algae. For this reason, while the quality of the Iwazuta genus green algae improves, the ratio of the algal body which can be utilized as a former strain becomes high, and a yield and a yield improve. In addition, sorting work is reduced and production efficiency is improved.

実施例１及び２で被覆資材として用いたネットＡ及びＢの透過率を示す図である。It is a figure which shows the transmittance | permeability of the net | network A and B used as a coating | covering material in Example 1 and 2. FIG. 市販のネットＣ及びＤの透過率を示す図である。It is a figure which shows the transmittance | permeability of commercially available net | network C and D. FIG. 実施例１における雑藻の発生状況を示す図である（１回目）。It is a figure which shows the generation | occurrence | production state of miscellaneous algae in Example 1 (the 1st time). 実施例１における雑藻の発生状況を示す図である（２回目）。It is a figure which shows the generation | occurrence | production state of the miscellaneous algae in Example 1 (2nd time). 実施例２における雑藻の発生状況を示す図である（１回目）。It is a figure which shows the generation | occurrence | production state of miscellaneous in Example 2 (the 1st time). 実施例２における雑藻の発生状況を示す図である（２回目）。It is a figure which shows the generation | occurrence | production state of miscellaneous algae in Example 2 (2nd time). 実施例２における培養後の藻体の写真である。3 is a photograph of the cultured algal bodies in Example 2.

以下、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail.

本発明方法の養殖対象は、緑藻綱アオサ目イワズタ科イワズタ属に属する緑藻であり、例えば、クビレズタ（海ブドウ、Caulerpa lentillifera）、タカノハズタ（Caulerpa sertularioides）等が例示される。このうち、特に雑藻の増殖を抑制する効果に優れることからクビレズタの養殖に好適に適用される。 Aquaculture object of the present invention method is a green algae belonging to green algae rope Ulva th Iwazuta family Iwazuta genus, for example, Caulerpa Lentillifera (sea grape, Caulerpa lentillifera), Takanohazuta (Caulerpa sertularioides) and the like. Among these, since it is excellent in the effect which suppresses especially the growth of miscellaneous algae, it is applied suitably for culture of a quarrel.

本発明方法は、太陽光を利用した陸上養殖において、４００〜５５０ｎｍ、好ましくは４２０〜５２０ｎｍの波長領域の光の透過率が３０〜６０％、好ましくは３５〜５５％であり、６００〜７００ｎｍ、好ましくは６２０〜６８０ｎｍの波長領域の光の透過率が７５％以上、好ましくは８０％以上である被覆資材を用いて遮光する。透過率は、上記それぞれの波長領域における透過率の平均値が上記範囲に含まれていればよく、上記波長領域に含まれる全ての波長における透過率が上記範囲内であることが好ましい。   In the land culture using sunlight, the method of the present invention has a light transmittance in the wavelength region of 400 to 550 nm, preferably 420 to 520 nm, 30 to 60%, preferably 35 to 55%, 600 to 700 nm, The light is preferably shielded by using a covering material having a light transmittance in the wavelength region of 620 to 680 nm of 75% or more, preferably 80% or more. As for the transmittance, it is only necessary that the average value of the transmittances in the respective wavelength regions is included in the above range, and it is preferable that the transmittances in all the wavelengths included in the wavelength region are in the above range.

上記被覆資材の形態は特に限定されるものではなく、織布、編布、不織布、繊維ネット、プラスチック製ネット、多孔性フィルム、波板などの種々の形態が含まれる。これらのうち、特に好ましい形態としては、織布、繊維ネット、波板等が挙げられる。   The form of the said covering material is not specifically limited, Various forms, such as a woven fabric, a knitted fabric, a nonwoven fabric, a fiber net, a plastic net, a porous film, a corrugated sheet, are included. Among these, particularly preferred forms include woven fabric, fiber net, corrugated sheet and the like.

本発明の被覆資材を構成する基材としては、通常の農業・水産用被覆資材に用いられるものであれば特に限定されないが、例えば、ポリエチレン、ポリプロピレン、ポリメタクリル酸エステル、ポリ酢酸ビニル、プラスチック、ポリカーボネート等が好ましい。   The base material constituting the coating material of the present invention is not particularly limited as long as it is used for ordinary agricultural / fishery coating materials. For example, polyethylene, polypropylene, polymethacrylic acid ester, polyvinyl acetate, plastic, Polycarbonate and the like are preferred.

本発明に用いる被覆資材において、上記各波長領域における光の透過率が上記範囲となるようにするためには、構成する基材中に、公知の赤色系色素を含有させればよく、これを常法に従って上記基材に練り込んだり、基材表面にコートすることにより、上記光選択透過性を有する資材を調製することができる。本発明において、被覆資材の透過率は、以下の方法によって測定される値を意味する。
（透過率の測定方法）
被覆資材の透過率は、コニカミノルタ製CM-700dを用いて測定した。白色校正板を用いて白色校正後、ターゲットマスク(CM-A183)と白色校正キャップ（CM-A177）との間に、約15cm角に切り取られた被覆資材を設置し、測定する。測定値は波長10nm間隔で出力され、透過率表示された値をもって透過率とした。
（光量子量の測定方法）
被覆資材を透過した光量子量について、総光量子量は、メイワフォーシス社製LI-250で測定された値を用いた。波長ごとの光量子量は、EIKO製MS-720で測定された値を用い、目的となる波長領域に含まれる光量子量の総和とした。光量子量を測定する際は、測定に開口部アタッチメントを設置せず、被覆資材から50cm以上離して行った。 In the coating material used in the present invention, in order to make the light transmittance in each wavelength region within the above range, a known red dye may be contained in the base material to be formed. The material having the light selective permeability can be prepared by kneading into the substrate according to a conventional method or coating the surface of the substrate. In the present invention, the transmittance of the covering material means a value measured by the following method.
(Measurement method of transmittance)
The transmittance of the coating material was measured using CM-700d manufactured by Konica Minolta. After white calibration using a white calibration plate, place a covering material cut to about 15 cm square between the target mask (CM-A183) and white calibration cap (CM-A177) and measure. The measured values were output at wavelength intervals of 10 nm, and the transmittance value was used as the transmittance.
(Measurement method of photon quantity)
For the photon quantity transmitted through the coating material, the value measured with LI-250 manufactured by Meiwa Forsys was used as the total photon quantity. The photon amount for each wavelength was the sum of the photon amounts contained in the target wavelength region using values measured with MS-720 manufactured by EIKO. When measuring the amount of photon, an opening attachment was not installed in the measurement, and it was separated from the covering material by 50 cm or more.

本発明の培養方法は、上記被覆資材によって遮光することを特徴とする。それ以外については、公知のイワズタ科イワズタ属緑藻の養殖方法に従って行われる。   The culture method of the present invention is characterized in that it is shielded from light by the coating material. About other than that, it is carried out in accordance with the well-known culture method of the Iwazuta family Iwazuta genus green algae.

例えば、イワズタ科イワズタ属緑藻の母藻（元株）をネット、網等の基体に定着させ、これを海水または人工海水を入れた水槽中に浸水通気させて培養する。海水または人工海水には、定期的に肥料を供給することが好ましい。肥料としては、液体肥料、魚類餌料等が例示される。培養期間は20〜60日程度である。   For example, the mother alga (former strain) of the Iwazuta family Iwazuta genus green algae is fixed on a substrate such as a net or a net, and this is cultured by being submerged in a water tank containing seawater or artificial seawater. It is preferable to periodically supply fertilizer to seawater or artificial seawater. Examples of the fertilizer include liquid fertilizer and fish food. The culture period is about 20 to 60 days.

上記被覆資材を養殖施設に適用するにあたっては、水表面の少なくとも一部に入射してくる太陽光を遮光するように配置すればよい。例えば、水表面と同等以上の面積を有する被覆資材を、水表面と略平行に、水表面から高さ10cm〜5mの位置に展張すればよい。養殖にあたって常時被覆資材で被覆して遮光することもできるし、養殖期間中一定期間のみ被覆したり、一日のうち、ある一定の時間のみ被覆することもできる。特に、水表面の全面に入射してくる太陽光を遮光するように上記被覆資材を常時展張しておくことが、雑藻の増殖抑制の観点から好ましい。なお、本発明方法は、太陽光を利用したものであるが、人工光源を用いる場合にも応用可能である。   In applying the covering material to the aquaculture facility, the covering material may be arranged so as to shield sunlight incident on at least a part of the water surface. For example, a covering material having an area equal to or larger than the water surface may be spread at a height of 10 cm to 5 m from the water surface substantially parallel to the water surface. During aquaculture, it can be covered with a covering material at all times to shield it from light, or it can be covered only for a certain period during the cultivation period, or it can be covered only for a certain period of time during the day. In particular, it is preferable from the viewpoint of suppressing the growth of miscellaneous algae to always spread the covering material so as to shield sunlight incident on the entire surface of the water surface. In addition, although the method of this invention utilizes sunlight, it is applicable also when using an artificial light source.

上記被覆資材を透過した光の総光量子量としては、好ましくは１００〜６００μｍｏｌ・ｍ−２・sec−１であり、より好ましくは２００〜４００μｍｏｌ・ｍ−２・sec−１である。また、波長４００〜５５０ｎｍの光量子量が２５〜２５０μｍｏｌ・ｍ−２・ｓ−１であることが好ましく、４０〜１６０μｍｏｌ・ｍ−２・ｓ−１であることがより好ましい。一方、波長６００〜７００ｎｍの光量子量は４０〜４００μｍｏｌ・ｍ−２・ｓ−１であることが好ましく、６０〜３００μｍｏｌ・ｍ−２・ｓ−１であることがより好ましい。さらに、４００〜５５０ｎｍと６００〜７００ｎｍの光量子量の比が１：１〜１：２であることが好ましく、１：１．３〜１：１．７であることがより好ましい。このような範囲であると、特にイワズタ科イワズタ属緑藻の藻体の生育が良好であり、かつ雑藻の増殖を抑制できる効果に優れるため好ましい。このような光量子量とするためには、上記被覆資材の目開きや孔の径や資材の厚み、色素の種類及び量等を調節すればよい。 The total photon amount of light transmitted through the coating material is preferably 100 to 600 μmol · m −2 · sec −1 , more preferably 200 to 400 μmol · m −2 · sec −1 . Moreover, it is preferable that it is 25-250 micromol * m <-2 > * s < -1 >, and, as for the photon amount of wavelength 400-550 nm, it is more preferable that it is 40-160 micromol * m <-2 > * s < -1 >. On the other hand, photon of wavelength 600~700nm is preferably from 40~400μmol · m -2 · s -1, and more preferably 60~300μmol · m -2 · s -1. Furthermore, the ratio of the photon quantities between 400 to 550 nm and 600 to 700 nm is preferably 1: 1 to 1: 2, more preferably 1: 1.3 to 1: 1.7. Such a range is particularly preferable because the growth of algal bodies of the Iwazuta family Iwazuta green algae is good and the effect of suppressing the growth of miscellaneous algae is excellent. In order to obtain such a photon amount, the openings of the coating material, the diameter of the holes, the thickness of the material, the type and amount of the pigment, and the like may be adjusted.

以下に実施例をあげて本発明を詳細に説明する。尚、これらは本発明を何ら限定するものではない。   Hereinafter, the present invention will be described in detail with reference to examples. Note that these do not limit the present invention.

実施例１
母藻（元株）として、クビレズタの藻体を用いた。コンクリート製、容量２m3の水槽を用いた。水槽に海水を2t注入し、換水率は１日1回転とした。母藻をネットに定植し、水深10ｃｍの位置に設置した。肥料として液体肥料を用い、1日毎に施肥を行った。水槽の上に、水表面から高さ0.5mの位置に被覆資材を展張し、約１カ月培養を行った。試験区では、図１に示す光透過性を有するネットＡ（2mm厚）を２枚重ねて用いた。対照区では、図１に示す光透過性を有するネットＢ（2mm厚）１枚を用いた。被覆資材は培養期間を通して常時設置していた。上記測定方法によって測定した被覆資材を透過した光の総光量子量は180〜350μｍｏｌ・ｍ−２・sec−１であった。なお、市販のネットＣ，Ｄの透過率を図２に示す。
培養期間中、水槽を目視により観察し、雑藻の発生状況を評価した。評価は４段階で行い、「0」が生えていない、「3」が大量に繁茂しているとした。試験は２回行った。結果を図３（１回目）及び４（２回目）に示す。この結果から明らかなように、試験区では、対照区と比較し、雑藻の発生状況が低いレベルで推移した。 Example 1
As the mother algae (former strain), Kubilezta alga bodies were used. A concrete water tank with a capacity of 2 m 3 was used. 2t of seawater was injected into the aquarium, and the water exchange rate was one rotation per day. Mother algae were planted on a net and installed at a depth of 10 cm. Liquid fertilizer was used as a fertilizer and fertilization was performed every day. The coating material was spread on the water tank at a height of 0.5 m from the water surface and cultured for about 1 month. In the test group, two sheets of net A (2 mm thick) having optical transparency shown in FIG. 1 were used. In the control group, one net B (2 mm thick) having light transmittance shown in FIG. 1 was used. The covering material was always installed throughout the culture period. The total photon quantity of the light transmitted through the coating material measured by the measurement method was 180 to 350 μmol · m −2 · sec −1 . In addition, the transmittance | permeability of commercially available net | network C and D is shown in FIG.
During the culture period, the water tank was visually observed to evaluate the occurrence of miscellaneous algae. The evaluation was performed in four stages, with “0” not growing and “3” growing in large quantities. The test was performed twice. The results are shown in FIGS. 3 (first time) and 4 (second time). As is clear from these results, the occurrence of miscellaneous algae in the test group was at a low level compared to the control group.

実施例２
母藻（種苗）として、クビレズタの藻体を用いた。木製、容量4m3の水槽を用いた。水槽に海水4t注入し、換水率は１日1回転とした。母藻をネットに定植し、水深20ｃｍの位置に設置した。肥料として魚類餌料（商品名：ヤイトハタ、沖縄県飼料協業組合社製）を用い、3日毎に施肥を行った。水槽の上に、水表面から高さ2.5mの位置に被覆資材を展張し、約１カ月培養を行った。試験区ではネットＡを用い、対照区ではネットＢを用いた。被覆資材は培養期間を通して常時設置していた。上記測定方法によって測定した被覆資材を透過した光の総光量子量は150〜600μｍｏｌ・ｍ−２・sec−１であった。
実施例１と同様にして、雑藻の発生状況を評価した。試験は２回行った。結果を図５（１回目）及び６（２回目）に示す。また試験区と対照区の藻体の写真を図７に示す。この結果から明らかなように、試験区では、対照区と比較し、雑藻の発生状況が低いレベルで推移した。 Example 2
As the mother algae (seed seedlings), Kubirezuta alga bodies were used. A wooden, 4m 3 water tank was used. 4t of seawater was injected into the tank, and the water exchange rate was one rotation per day. Mother algae were planted on a net and installed at a depth of 20 cm. The fertilizer was applied every 3 days using a fish feed (product name: Yaithata, manufactured by Okinawa Feed Association) as the fertilizer. The coating material was spread on the water tank at a height of 2.5 m from the water surface and cultured for about one month. Net A was used in the test plot, and net B was used in the control plot. The covering material was always installed throughout the culture period. The total photon quantity of the light transmitted through the coating material measured by the measurement method was 150 to 600 μmol · m −2 · sec −1 .
In the same manner as in Example 1, the state of occurrence of miscellaneous algae was evaluated. The test was performed twice. The results are shown in FIGS. 5 (first time) and 6 (second time). Moreover, the photograph of the algal body of a test group and a control group is shown in FIG. As is clear from these results, the occurrence of miscellaneous algae in the test group was at a low level compared to the control group.

本発明によれば、珪藻や藍藻等の雑藻の増殖を選択的に抑制することができるため、クビレズタ等イワズタ属緑藻の養殖方法として好適に利用できる。   According to the present invention, the growth of miscellaneous algae such as diatoms and cyanobacteria can be selectively suppressed, and therefore, it can be suitably used as a method for cultivating Iwazuta genus green algae such as crickets.

Claims (5)

太陽光を利用したイワズタ科イワズタ属緑藻の養殖方法であって、４００〜５５０ｎｍの波長領域の光の透過率が３０〜６０％であり、６００〜７００ｎｍの波長領域の光の透過率が７５％以上である被覆資材で遮光することを特徴とするイワズタ科イワズタ属緑藻の養殖方法。   A method for cultivating green lobsters of the genus Iwazuta family using sunlight, wherein the light transmittance in the wavelength region of 400 to 550 nm is 30 to 60%, and the light transmittance in the wavelength region of 600 to 700 nm is 75%. A method for cultivating Iwazuta genus Green alga, which is shielded from light by the covering material as described above. 前記被覆資材を透過した光の総光量子量が、１００〜６００μｍｏｌ・ｍ−２・sec−１である請求項１に記載のイワズタ科イワズタ属緑藻の養殖方法。 2. The method of cultivating a lobster family green alga according to claim 1, wherein a total photon amount of light transmitted through the covering material is 100 to 600 μmol · m −2 · sec −1 . 前記被覆資材を透過した光の４００〜５５０ｎｍの波長領域の光量子量が２５〜２５０μｍｏｌ・ｍ−２・ｓ−１であり、６００〜７００ｎｍの波長領域の光量子量が４０〜４００μｍｏｌ・ｍ−２・ｓ−１である請求項１または２に記載のイワズタ科イワズタ属緑藻の養殖方法。 The photon amount in the wavelength region of 400 to 550 nm of the light transmitted through the coating material is 25 to 250 μmol · m −2 s −1 , and the photon amount in the wavelength region of 600 to 700 nm is 40 to 400 μmol · m −2. It is s- 1 , The cultivation method of the Iwazuta family Iwazuta genus green algae of Claim 1 or 2. 前記被覆資材を透過した光の４００〜５５０ｎｍの波長領域と６００〜７００ｎｍの波長領域の光量子量の比が１：１〜１：２である請求項１〜３のいずれかの項記載のイワズタ科イワズタ属緑藻の養殖方法。   The ratio of the photon quantity in the wavelength region of 400 to 550 nm and the wavelength region of 600 to 700 nm of the light transmitted through the coating material is 1: 1 to 1: 2, The lobster family according to claim 1. A method of cultivating green algae. 太陽光を利用したイワズタ科イワズタ属緑藻の養殖において、４００〜５５０ｎｍの波長領域の光の透過率が３０〜６０％であり、６００〜７００ｎｍの波長領域の光の透過率が７５％以上である被覆資材で遮光することを特徴とする雑藻抑制方法。   In the cultivation of the Iwazuta family green algae using sunlight, the light transmittance in the wavelength region of 400 to 550 nm is 30 to 60%, and the light transmittance in the wavelength region of 600 to 700 nm is 75% or more. A method of suppressing miscellaneous algae, which is shielded from light with a covering material.
JP2016034119A 2016-02-25 2016-02-25 How to cultivate green algae Active JP6621341B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016034119A JP6621341B2 (en) 2016-02-25 2016-02-25 How to cultivate green algae

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016034119A JP6621341B2 (en) 2016-02-25 2016-02-25 How to cultivate green algae

Publications (2)

Publication Number Publication Date
JP2017147995A true JP2017147995A (en) 2017-08-31
JP6621341B2 JP6621341B2 (en) 2019-12-18

Family

ID=59740000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016034119A Active JP6621341B2 (en) 2016-02-25 2016-02-25 How to cultivate green algae

Country Status (1)

Country Link
JP (1) JP6621341B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112369356A (en) * 2020-12-01 2021-02-19 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
JP2021036778A (en) * 2019-08-30 2021-03-11 松田産業株式会社 On-land aquaculture method for red alga pyropia
JP2021045120A (en) * 2019-09-12 2021-03-25 理研食品株式会社 Germination method of upright nemacystus decipiens from discal nemacystus decipiens
WO2024038869A1 (en) * 2022-08-17 2024-02-22 共同印刷株式会社 Selective growth promoter for algae

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206316A (en) * 1981-06-10 1982-12-17 Mitsubishi Petrochemical Co Covering material and method for breeding laver
JPH02107963U (en) * 1989-02-13 1990-08-28
JPH09327249A (en) * 1996-06-11 1997-12-22 Hiroshi Maeda Culture of laver and light-shielding tool used therefor
JP2000069861A (en) * 1998-08-27 2000-03-07 Mikado Kako Kk Mulchfilm for agriculture
WO2005102031A1 (en) * 2004-04-20 2005-11-03 Technical Office Ltd. Algae intensive-cultivation apparatus and cultivating method
JP2007330119A (en) * 2006-06-13 2007-12-27 Takasu Ai System:Kk Device and method for culturing caulerpa lentillifera
CN103931480A (en) * 2014-04-09 2014-07-23 青岛海葡萄有机绿藻研发养殖有限公司 Efficient breeding and land-based cultivating method for caulerpa lentillifera
JP2015195776A (en) * 2014-04-02 2015-11-09 三菱樹脂アグリドリーム株式会社 agricultural film
CN105210846A (en) * 2015-11-13 2016-01-06 山东东方海洋科技股份有限公司 A kind of long shoot grape caulerpa cultivator and cultural method thereof
CN105594582A (en) * 2016-01-05 2016-05-25 深圳市蓝汀鼎执生物科技有限公司 Rapid cultivation method for vitis sinocinerea caulerpa reproductive shoot

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206316A (en) * 1981-06-10 1982-12-17 Mitsubishi Petrochemical Co Covering material and method for breeding laver
JPH02107963U (en) * 1989-02-13 1990-08-28
JPH09327249A (en) * 1996-06-11 1997-12-22 Hiroshi Maeda Culture of laver and light-shielding tool used therefor
JP2000069861A (en) * 1998-08-27 2000-03-07 Mikado Kako Kk Mulchfilm for agriculture
WO2005102031A1 (en) * 2004-04-20 2005-11-03 Technical Office Ltd. Algae intensive-cultivation apparatus and cultivating method
JP2007330119A (en) * 2006-06-13 2007-12-27 Takasu Ai System:Kk Device and method for culturing caulerpa lentillifera
JP2015195776A (en) * 2014-04-02 2015-11-09 三菱樹脂アグリドリーム株式会社 agricultural film
CN103931480A (en) * 2014-04-09 2014-07-23 青岛海葡萄有机绿藻研发养殖有限公司 Efficient breeding and land-based cultivating method for caulerpa lentillifera
CN105210846A (en) * 2015-11-13 2016-01-06 山东东方海洋科技股份有限公司 A kind of long shoot grape caulerpa cultivator and cultural method thereof
CN105594582A (en) * 2016-01-05 2016-05-25 深圳市蓝汀鼎执生物科技有限公司 Rapid cultivation method for vitis sinocinerea caulerpa reproductive shoot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
山田真之、須藤裕介: "高水温期のクビレズタの生長に及ぼす照度の影響（海ブドウ養殖の安定生産技術開発）", 沖縄水海研セ事報, vol. 72, JPN7019003408, 2011, pages 153 - 155, ISSN: 0004137863 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021036778A (en) * 2019-08-30 2021-03-11 松田産業株式会社 On-land aquaculture method for red alga pyropia
JP2021045120A (en) * 2019-09-12 2021-03-25 理研食品株式会社 Germination method of upright nemacystus decipiens from discal nemacystus decipiens
CN112369356A (en) * 2020-12-01 2021-02-19 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
CN112369356B (en) * 2020-12-01 2023-02-24 苑春亭 Pond distribution box cultivation method for stichopus japonicus in late autumn and early spring
WO2024038869A1 (en) * 2022-08-17 2024-02-22 共同印刷株式会社 Selective growth promoter for algae

Also Published As

Publication number Publication date
JP6621341B2 (en) 2019-12-18

Similar Documents

Publication Publication Date Title
Alveal et al. Mass cultivation of the agar-producing alga Gracilaria chilensis (Rhodophyta) from spores
US7484329B2 (en) Technology for cultivation of Porphyra and other seaweeds in land-based sea water ponds
US7080478B2 (en) Technology for cultivation of Porphyra and other seaweeds in land-based sea water ponds
CN104430079B (en) Vegetable, Oryza sativa L., flower planting support, with net cage set, the apparatus and method combined
CN103120140B (en) Scallop cultivation method
Rolin et al. Regrowth and biofouling in two species of cultivated kelp in the Shetland Islands, UK
CN103798123B (en) A kind of half leaf porphyra breeding method
JP6621341B2 (en) How to cultivate green algae
CN103814844B (en) The ecological sea cucumber method of supporting in seabed, a kind of shallow sea
Yu et al. Effects of irradiance and salinity on the growth of carpospore-derived tetrasporophytes of Gracilaria edulis and Gracilaria tenuistipitata var liui (Rhodophyta)
CN102349463A (en) Biological cultivation method for mulch film enclosure pond of blue crab seedling
CN104642221A (en) Penaeus japonicus pond culture technology
CN104770319A (en) Interspecific hybridization and propagation method for deep sea scallops and chlamys farreri
CN103858745B (en) Tawny daylily algae artificial seedling rearing technology
CN104012432A (en) Method suitable for artificial breeding of CrassOstrea hongkongensis in sea area in north
CN103211129B (en) Application of marine diatoms as sinonovacula constricta lamarck seedling culture bait
CN103518653B (en) Bay scallop off-season reproduction method
CN103004576A (en) Method for artificially cultivating Sargassum thunbergii in intertidal zones
CN102823531B (en) Marsupenaeus japonicus outdoor overwintering culture method
CN106305426A (en) Establishment method for tissue culture system of Taiwan morus laevigata
CN102860273A (en) Crossbreeding method of mud crab
CN109156280A (en) A kind of efficient breeding method of pluralistic agricultural
Horstmann Cultivation of the green alga, Caulerpa racemosa, in tropical waters and some aspects of its physiological ecology
CN103688882A (en) High-density crab cultivating method
CN104145868B (en) A kind of method improving pond loach fry survival rate

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190124

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191010

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20191029

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20191119

R150 Certificate of patent or registration of utility model

Ref document number: 6621341

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250