JP6115802B2 - Culture method of flounder fish by irradiation with specific wavelength light - Google Patents
Culture method of flounder fish by irradiation with specific wavelength light Download PDFInfo
- Publication number
- JP6115802B2 JP6115802B2 JP2012068668A JP2012068668A JP6115802B2 JP 6115802 B2 JP6115802 B2 JP 6115802B2 JP 2012068668 A JP2012068668 A JP 2012068668A JP 2012068668 A JP2012068668 A JP 2012068668A JP 6115802 B2 JP6115802 B2 JP 6115802B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- water temperature
- irradiation
- peak
- fish
- 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.)
- Active
Links
- 241000269908 Platichthys flesus Species 0.000 title description 28
- 238000012136 culture method Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 241000410737 Verasper moseri Species 0.000 claims description 25
- 238000009360 aquaculture Methods 0.000 claims description 24
- 244000144974 aquaculture Species 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- 230000001678 irradiating effect Effects 0.000 claims description 14
- 238000009372 pisciculture Methods 0.000 claims 1
- 230000002354 daily effect Effects 0.000 description 17
- 241000251468 Actinopterygii Species 0.000 description 16
- 235000012631 food intake Nutrition 0.000 description 10
- 230000037396 body weight Effects 0.000 description 7
- 230000037406 food intake Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 101800002739 Melanin-concentrating hormone Proteins 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 230000012447 hatching Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000237509 Patinopecten sp. Species 0.000 description 2
- 230000036528 appetite Effects 0.000 description 2
- 235000019789 appetite Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- ORRDHOMWDPJSNL-UHFFFAOYSA-N melanin concentrating hormone Chemical compound N1C(=O)C(C(C)C)NC(=O)C(CCCNC(N)=N)NC(=O)CNC(=O)C(C(C)C)NC(=O)C(CCSC)NC(=O)C(NC(=O)C(CCCNC(N)=N)NC(=O)C(NC(=O)C(NC(=O)C(N)CC(O)=O)C(C)O)CCSC)CSSCC(C(=O)NC(CC=2C3=CC=CC=C3NC=2)C(=O)NC(CCC(O)=O)C(=O)NC(C(C)C)C(O)=O)NC(=O)C2CCCN2C(=O)C(CCCNC(N)=N)NC(=O)C1CC1=CC=C(O)C=C1 ORRDHOMWDPJSNL-UHFFFAOYSA-N 0.000 description 2
- 102000047659 melanin-concentrating hormone Human genes 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 235000020637 scallop Nutrition 0.000 description 2
- 206010049290 Feminisation acquired Diseases 0.000 description 1
- 208000034793 Feminization Diseases 0.000 description 1
- 241000255777 Lepidoptera Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241000269978 Pleuronectiformes Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004634 feeding behavior Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000019553 satiation Nutrition 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000020509 sex determination Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
Landscapes
- Farming Of Fish And Shellfish (AREA)
Description
本発明は、ヒラメ、カレイ、マツカワ等のカレイ目魚類の養殖方法に関する。 The present invention relates to a method for culturing flounder fish such as flounder, flounder, and matsukawa.
ヒラメやカレイ等のカレイ目魚類は自然界での生息数が激減しているため、養殖による資源数の確保および増産が熱望されている。特に、カレイ目魚類の中でもマツカワ（学名：Ｖｅｒａｓｐｅｒ ｍｏｓｅｒｉ）は冷水性高級魚として知られ、カレイ目の需要を満たすために水槽飼育する方法が提案されている（特許文献１）。特許文献１記載の技術は、水槽に白色背景色を採用し、孵化後６ヶ月経過後の稚魚を放つとメラニン凝集ホルモンの産生が刺激され食欲が増進されるため、飽食量給餌によって体重が増加するというものである。 Flatfishes such as flounder and flounder are drastically decreasing in the number of natural inhabitants. Therefore, securing the number of resources by aquaculture and increasing production are eagerly desired. In particular, among flounderfishes, Matsukawa (scientific name: Verasper moseri) is known as a cold-water high-grade fish, and a method for raising aquariums to meet the demand for flounder eyes has been proposed (Patent Document 1). The technology described in Patent Document 1 adopts a white background color in the aquarium, and releasing larvae 6 months after hatching stimulates the production of melanin-concentrating hormone and increases appetite. It is to do.
また、カレイ目魚類の養殖方法であって、カレイ目魚類の無眼側が接する内面が白色若しくは黄色に視認できるように形成した着色水槽を用いてカレイ目魚類を飼育する方法もある(特許文献２）。人工飼育したマツカワは、無眼側が黒化して商品価値が低下する場合がある。しかしながら、孵化した仔稚魚が着底するまで敷砂水槽内で飼育し、その後白色あるいは黄色水槽で飼育すると、メラニン凝集ホルモン遺伝子の発現量が増加し、無眼側の黒化を抑制することができる、という。なお、水温は１０〜１３℃が好ましいという。着色水槽での飼育水温と無眼側の黒化との関係を調査したところ、１２℃前後の水温が黒化防除に有効であることが見出されたからである。 Also, there is a method for cultivating flounderfishes using a colored water tank formed so that the inner surface of the flounderfish that is in contact with the eyeless side is visible in white or yellow (Patent Document 2). ). The artificially bred Matsukawa may be blackened on the eyeless side, resulting in a decrease in commercial value. However, when the hatched larvae are kept in a sand tank until they reach the bottom, and then kept in a white or yellow aquarium, the expression level of the melanin-concentrating hormone gene increases and suppresses the darkening of the eyeless side. It can be done. The water temperature is preferably 10 to 13 ° C. This is because when the relationship between the breeding water temperature in the colored water tank and the blackening on the eyeless side was investigated, it was found that a water temperature of around 12 ° C. was effective for controlling blackening.
また、カレイ目魚類の養殖方法であって、養殖領域内に赤色成分を含まない光を照射することを特徴とするカレイ目魚類の養殖方法もある(特許文献３）。赤色光が、カレイ目の成長の妨げになっていることを突き止め、４００〜６００ｎｍの範囲内の光を照射し、カレイ目魚類の成長を促進させるというものである。蛍光灯光にカラーフィルターを透過させて得た青、緑、赤および白色光を照射した場合、赤色によって白色光より体重の増加率が低下している。また、青、緑、赤、黄色の発光ダイオード（以下、単にＬＥＤと称する）光を照射し７ヶ月間飼育した場合に、ＬＥＤ照射光による体重および体長の差は観察されていない。 Also, there is a method for cultivating flounder fish, which is characterized by irradiating light that does not contain a red component in the culturing area (Patent Document 3). It is determined that red light hinders the growth of flounder eyes and irradiates light within the range of 400 to 600 nm to promote the growth of flounder fish. When blue, green, red, and white light obtained by passing a fluorescent filter through a color filter is irradiated, the rate of increase in body weight is lower than that of white light due to red. In addition, when blue, green, red, and yellow light emitting diode (hereinafter simply referred to as LED) light is irradiated and reared for 7 months, differences in body weight and body length due to the LED irradiation light are not observed.
また、カレイ目魚類の養殖温度に関する技術として、魚類の生息領域内に、６００ｎｍ以下の波長の光を、雌雄決定前から雌雄決定までの間、毎日９〜１５時間照射することを特徴とする、魚類の性統御方法もある(特許文献４）。水温を１８℃以下にすると雌化が促進され、水温を２７℃以上にすると雄化が促進されるという。 In addition, as a technique related to the culture temperature of the flounder fish, it is characterized by irradiating light of a wavelength of 600 nm or less within the fish inhabiting area for 9 to 15 hours every day before and after the sex determination. There is also a fish sex control method (Patent Document 4). When the water temperature is 18 ° C. or lower, feminization is promoted, and when the water temperature is 27 ° C. or higher, maleization is promoted.
養殖魚は天然魚に比べて市場価格が低いものの餌等の飼育コストがかかるため、自然界に生息するより成長速度を促進して養殖できることが好ましい。前記特許文献１記載の方法は、白色背景色の水槽を使用して体重増加を図るものであり、特許文献３記載の方法は、赤色光を照射しないことで自然光よりも成長を促進させるものであるが、より迅速に成長を促進しうる方法が望まれる。
なお、特許文献２記載の方法は、白色または黄色水槽で飼育することで無眼側の黒化を防止するものである。商品価値を向上させるには、成長率を確保しつつ無眼側の白色を維持しうるカレイ目魚類の養殖方法が望まれる。
さらに、特許文献４に示すように、カレイ目は水温によって雌雄の割合が変動する可能性がある。雌雄が変化することで、商品価値が低下する場合がある。よって、雌雄を変動させることなく成長率を確保しうるカレイ目魚類の養殖方法が望まれる。
Although cultured fish has a low market price compared to natural fish, but costs for breeding such as food, it is preferable that the cultured fish can be cultivated at a higher growth rate than it does in the natural world. The method described in Patent Document 1 is intended to increase weight using a white background aquarium, and the method described in Patent Document 3 promotes growth more than natural light by not irradiating red light. However, there is a need for a method that can promote growth more quickly.
In addition, the method of patent document 2 prevents blackening of the eyeless side by breeding with a white or yellow water tank. In order to improve the commercial value, a method for cultivating flounder fish that can maintain the whiteness of the eyeless side while securing the growth rate is desired.
Furthermore, as shown in Patent Document 4, the ratio of males and females may vary depending on the water temperature. The merchandise value may decrease due to changes in sex. Therefore, a method for cultivating flounderfishes that can ensure the growth rate without changing the sexes is desired.
上記現状に鑑み、本発明は、成長効率に優れるカレイ目魚類の養殖方法を提供することを目的とする。 In view of the above-described present situation, an object of the present invention is to provide a method for cultivating flounderfishes having excellent growth efficiency.
本発明者らは、カレイ目魚類の養殖方法を詳細に検討した結果、カレイ目魚類の成長は照射光に含まれる異なる波長に対応して成長すること、ＬＥＤによる青、緑、赤、白色光を照射すると、自然光を照射した場合よりもカレイ目魚類の成長を促進しうることが判明した。特に、水温が１０℃以下の場合に青、緑、白色光を照射すると日間成長率が促進され、水温が１０℃を超える場合には青、赤、白色光を照射すると日間成長率を促進させることができる。このため、水温に応じてＬＥＤ照射光の波長を変化させることでより効率的なカレイ目魚類の養殖を行うことができる。 The present inventors have studied in detail a method for cultivating flounderfishes, and as a result, the flounderfishes grow corresponding to different wavelengths included in the irradiation light, and blue, green, red, white light by LEDs. It has been found that the growth of flounder fish can be promoted by irradiating with radiant light more than when irradiating with natural light. In particular, when the water temperature is 10 ° C. or lower, irradiation with blue, green, or white light promotes the daily growth rate, and when the water temperature exceeds 10 ° C., irradiation with blue, red, or white light promotes the daily growth rate. be able to. For this reason, it is possible to cultivate flounder fish more efficiently by changing the wavelength of the LED irradiation light according to the water temperature.
すなわち本発明は、養殖領域内に、ピークトップが６３５±１５ｎｍのシングルピークからなる赤色光、ピークトップが４６５±１５ｎｍのシングルピークからなる青色光、ピークトップが５２０±１５ｎｍのシングルピークからなる緑色光、ピークトップが４５０±１５ｎｍのシングルピークとピークトップが５５０±２０ｎｍのシングルピークとを合成してなる白色光のいずれかを照射することを特徴とする、カレイ目魚類の養殖方法であって、
水温が１０℃以下の場合に、前記青色光、緑色光または白色光のいずれかを照射し、かつ
水温が１０℃を超えた場合に、前記赤色光を照射することを特徴とする、カレイ目魚類の養殖方法を提供するものである。
That is, according to the present invention, red light having a single peak with a peak top of 635 ± 15 nm, blue light having a single peak with a peak top of 465 ± 15 nm, and green having a single peak with a peak top of 520 ± 15 nm within the aquaculture area. A method for cultivating flounderfish characterized by irradiating light, or any one of white light obtained by synthesizing a single peak having a peak top of 450 ± 15 nm and a single peak having a peak top of 550 ± 20 nm. ,
When the water temperature is 10 ° C. or lower, irradiate one of the blue light, green light, and white light, and
The present invention provides a method for cultivating flounderfishes characterized by irradiating the red light when the water temperature exceeds 10 ° C.
更に、本発明は、上記カレイ目魚類がマツカワ（学名：Ｖｅｒａｓｐｅｒ ｍｏｓｅｒｉ）であることを特徴とする上記のカレイ目魚類の養殖方法を提供するものである。 Furthermore, the present invention provides a method for cultivating the flounder fish described above, wherein the flounder fish is Matsukawa (scientific name: Verasper moseri).
本発明によれば、ピークトップが６３５±１５ｎｍのシングルピークからなる赤色光、ピークトップが４６５±１５ｎｍのシングルピークからなる青色光、ピークトップが５２０±１５ｎｍのシングルピークからなる緑色光、ピークトップが４５０±１５ｎｍのシングルピークとピークトップが５５０±２０ｎｍのシングルピークとを合成してなる白色光のいずれかを照射することで、自然光照射よりもカレイ目魚類の成長を促進させることができる。 According to the present invention, a red light having a single peak with a peak top of 635 ± 15 nm, a blue light having a single peak with a peak top of 465 ± 15 nm, a green light having a single peak with a peak top of 520 ± 15 nm, and a peak top. By irradiating any one of the white lights obtained by synthesizing a single peak with 450 ± 15 nm and a single peak with a peak top of 550 ± 20 nm, growth of flounder fish can be promoted more than natural light irradiation.
本発明は、養殖領域内に、ピークトップが６３５±１５ｎｍのシングルピークからなる赤色光、ピークトップが４６５±１５ｎｍのシングルピークからなる青色光、ピークトップが５２０±１５ｎｍのシングルピークからなる緑色光、ピークトップが４５０±１５ｎｍのシングルピークとピークトップが５５０±２０ｎｍのシングルピークとを合成してなる白色光のいずれかを照射することを特徴とする、カレイ目魚類の養殖方法である。特に、水温が１０℃以下の場合に、前記青色光、緑色光または白色光のいずれかを照射することが好ましく、水温が１０℃を超えた場合に、前記青色光、赤色光、白色光のいずれかを照射すれば、自然光の下で養殖する場合より成長率に優れる。 The present invention includes a red light composed of a single peak with a peak top of 635 ± 15 nm, a blue light composed of a single peak with a peak top of 465 ± 15 nm, and a green light composed of a single peak with a peak top of 520 ± 15 nm. A method for cultivating flounderfishes characterized by irradiating any one of white light obtained by synthesizing a single peak having a peak top of 450 ± 15 nm and a single peak having a peak top of 550 ± 20 nm. In particular, when the water temperature is 10 ° C. or lower, it is preferable to irradiate any one of the blue light, green light, and white light. When the water temperature exceeds 10 ° C., the blue light, red light, and white light are emitted. If you irradiate any of them, the growth rate is better than when cultivating under natural light.
カレイ目魚類としては、マツカワ属、アブラガレイ属、ムシガレイ属、マコガレイ属などのカレイ科、ガンゾウビラメ属、ヒラメ属、アラメガレイ属などのヒラメ科、その他ウシノシタ科、ダルマガレイ科、スコブタルムス科、コケビラメ科（以上カレイ亜目）、ボウズガレイ科（以上ボウズガレイ亜目）などを例示することができる。以下、便宜のため、カレイ目魚類としてマツカワ（学名：Ｖｅｒａｓｐｅｒ ｍｏｓｅｒｉ）を養殖する場合で説明するが、他の魚類も同様である。 The flounder fishes include flounder family such as pine kawara, scallop genus, scallop genus, flounder genus, flounder genus, flounder genus, flounder genus, etc. A.), and the family of the family “Lepidoptera”. Hereinafter, for convenience, explanation will be given on the case where Matsukawa (scientific name: Verasper moseri) is cultivated as a flounder fish, but the same applies to other fishes.
本発明の養殖方法は、孵化後所定の期間を経過した稚魚を使用することが好ましい。魚種によってはＬＥＤ光の照射によって雌雄が変化する場合があるからである。マツカワの場合であれば、孵化後１００日令を経過した稚魚を使用することが好ましい。 In the culture method of the present invention, it is preferable to use fry that have passed a predetermined period after hatching. This is because, depending on the fish species, the sexes may change due to the irradiation of LED light. In the case of Matsukawa, it is preferable to use fry that have passed 100 days after hatching.
本発明で使用する養殖装置は、自然光の照射を防止しうる遮光性のある魚類養殖用の水槽であって、ピークトップが６３５±１５ｎｍのシングルピークからなる赤色光、ピークトップが４６５±１５ｎｍのシングルピークからなる青色光、ピークトップが５２０±１５ｎｍのシングルピークからなる緑色光、ピークトップが４５０±１５ｎｍのシングルピークとピークトップが５５０±２０ｎｍのシングルピークとを合成してなる白色光の光源が配設される養殖装置を広く使用することができる。上記要件を満たせば、材質や形状に限定はない。たとえば、プラスチック、金属、木製、その他で構成される略円柱状の水槽や方形の水槽に、ＬＥＤ照射装置が配設され、同質または異なる素材からなる遮光部材で被覆される装置を例示することができる。 The aquaculture apparatus used in the present invention is a fish tank with a light-shielding property that can prevent natural light irradiation, a red light consisting of a single peak with a peak top of 635 ± 15 nm, and a peak top of 465 ± 15 nm. Blue light consisting of a single peak, green light consisting of a single peak with a peak top of 520 ± 15 nm, white light source composed of a single peak with a peak top of 450 ± 15 nm and a single peak with a peak top of 550 ± 20 nm Can be widely used. If the above requirements are satisfied, the material and shape are not limited. For example, an apparatus in which an LED irradiation device is disposed in a substantially cylindrical water tank or a square water tank made of plastic, metal, wood, etc., and is covered with a light shielding member made of the same or different material may be exemplified. it can.
養殖装置は、カレイ目魚類の特性に応じて水槽の内面は白色または黄色などの淡色で構成されることが好ましい。カレイ目魚類は淡色背景の場合にメラニン凝集ホルモンの産生が刺激され、当該ホルモンの食欲増進効果によって摂餌量が増加する場合があるからである。 In the aquaculture device, the inner surface of the aquarium is preferably configured in a light color such as white or yellow according to the characteristics of the flounder fish. This is because the flounder fish is stimulated for the production of melanin-concentrating hormone in the case of a light-colored background, and the food intake may increase due to the appetite enhancing effect of the hormone.
照射する光は、ピークトップが６３５±１５ｎｍのシングルピークからなる赤色光、ピークトップが４６５±１５ｎｍのシングルピークからなる青色光、ピークトップが５２０±１５ｎｍのシングルピークからなる緑色光、ピークトップが４５０±１５ｎｍのシングルピークとピークトップが５５０±２０ｎｍのシングルピークとを合成してなる白色光である。このような光を照射する装置としては、ＬＥＤ照射装置がある。これらの波形の一例を図８に示す。本発明で使用するＬＥＤ照射装置は上記４色のいずれか１色を照射しうるものであればよい。以降、便宜のため、ＬＥＤ光で説明するが、各青色光、青色光、赤色光、白色光が上記条件を満たせば、ＬＥＤ照射装置に限るものではない。 The light to be irradiated is red light with a single peak with a peak top of 635 ± 15 nm, blue light with a single peak with a peak top of 465 ± 15 nm, green light with a single peak with a peak top of 520 ± 15 nm, and a peak top. It is white light obtained by synthesizing a single peak with 450 ± 15 nm and a single peak with a peak top of 550 ± 20 nm. There exists an LED irradiation apparatus as an apparatus which irradiates such light. An example of these waveforms is shown in FIG. The LED irradiation device used in the present invention may be any device that can irradiate any one of the above four colors. Hereinafter, for the sake of convenience, description will be made using LED light. However, the present invention is not limited to the LED irradiation device as long as each blue light, blue light, red light, and white light satisfy the above conditions.
養殖用水を導入した養殖装置に、マツカワを収容し遮光する。この遮光された養殖装置に、ＬＥＤ照射装置から青色光、緑色光、赤色光、白色光のいずれかを照射する。ＬＥＤ光の照射時間は特に限定はないが、一日あたり８時間を基準とする照射時間が好ましい。上記時間で体重および体長の成長率に優れるからである。ＬＥＤ光を照射すると水温の如何を問わず、自然光を照射した場合と比較して日間成長率が増加する。
魚類は水温の影響を受けやすく水温が低いと成長が遅延若しくは停止する。例えば、マツカワの成長は、水温が１０℃より高い場合には良好であるが、水温が１０℃以下では摂餌量が激減し、それに伴い成長が低下する。ＬＥＤ光を照射した際の水温による成長率の変化を評価したところ、緩成長の１０℃以下の水温の状況で、前記青色光、緑色光、赤色光は自然光よりも成長を促進し、特に前記青色光、緑色光および白色光は赤色光よりも優れて成長を促進することが判明した。
なお、水温が１０℃を超えて１２〜１５℃の範囲では、前記青色光、緑色光、赤色光の照射が自然光を照射した場合よりも成長を促進させた。水温が１０℃を超えるとマツカワは自然光のもとでも成長を停止することなく、経過日ごとに体重を増加させるが、自然光に代えて前記青色光や白色光を照射すると、更に日間成長率を増加させることができる。
このことは、水温に対応してＬＥＤ光の波長を変えることでより成長率を向上させることができることを意味する。１０℃以下の水温の場合に前記青色光、緑色光、白色光を照射することで、特に成長が緩慢な時期に魚体を効率的に成長させ、１０℃を超え、特に１０℃を超えて１５℃以下の範囲で前記青色光、赤色光、白色光を照射することで更に魚体を成長させることができる。なお、水温が１５℃を超えるとＬＥＤ光照射を照射した魚体成長率は自然光を照射した場合と略同等であるから、ＬＥＤ光照射を停止することで電力を節約することができる。
Matsukawa is housed in aquaculture equipment that has been introduced with aquaculture water, and is shielded from light. The shaded aquaculture device is irradiated with blue light, green light, red light, or white light from the LED irradiation device. The irradiation time of the LED light is not particularly limited, but the irradiation time based on 8 hours per day is preferable. This is because the growth rate of weight and body length is excellent in the above time. Irradiation with LED light increases the daily growth rate compared to the case of natural light irradiation regardless of the water temperature.
Fish are susceptible to water temperature, and growth is delayed or stopped when the water temperature is low. For example, Matsukawa's growth is good when the water temperature is higher than 10 ° C., but when the water temperature is 10 ° C. or lower, the amount of food consumption decreases drastically, and the growth decreases accordingly. When the change in the growth rate due to the water temperature when irradiating the LED light was evaluated, the blue light, the green light, and the red light promote the growth more than natural light in the situation of the water temperature of 10 ° C. or less of the slow growth, Blue light, green light and white light have been found to promote growth better than red light.
In addition, in the range whose water temperature exceeded 10 degreeC and 12-15 degreeC, the growth of the said blue light, green light, and red light promoted growth rather than the case where natural light was irradiated. When the water temperature exceeds 10 ° C, Matsukawa does not stop growing even under natural light, and increases body weight every day, but if the blue light or white light is used instead of natural light, the daily growth rate is further increased. Can be increased.
This means that the growth rate can be further improved by changing the wavelength of the LED light corresponding to the water temperature. By irradiating the blue light, the green light, and the white light when the water temperature is 10 ° C. or less, the fish body is efficiently grown particularly at a slow growth time, exceeding 10 ° C., particularly exceeding 10 ° C. and 15 A fish body can be further grown by irradiating the blue light, the red light, and the white light within a range of 0 ° C. or less. Note that when the water temperature exceeds 15 ° C., the growth rate of fish irradiated with LED light irradiation is substantially the same as that when natural light is irradiated, and thus power can be saved by stopping the LED light irradiation.
本発明の養殖方法は、マツカワ以外のカレイ目魚類に適用することができる。 The aquaculture method of the present invention can be applied to flounder fishes other than Matsukawa.
次に実施例を挙げて本発明を具体的に説明するが、これらの実施例は何ら本発明を制限するものではない。 EXAMPLES Next, although an Example is given and this invention is demonstrated concretely, these Examples do not restrict | limit this invention at all.
（実施例１）
直径１０００ｍｍ、深さ６５０ｍｍのプラスチック製円柱状の水槽にＬＥＤ照射装置を取り付けて養殖装置を構成した。この養殖装置を４基設置し、それぞれに深さ６５０ｍｍとなるように養殖用水を仕込み、これに平均体重３４．０±０．９ｇ、平均体長１１．１±０．１ｃｍのマツカワをそれぞれ２５個体投入した。養殖期間は、１０月１２日から翌年１月１３日までとした。
３基の養殖装置に、ＬＥＤ照射装置から、ピークトップが４６４ｎｍの青色単色光、ピークトップが５１８ｎｍの緑色単色光、ピークトップが６３５ｎｍの赤色単色光のそれぞれを照射した。ＬＥＤ光の照射は、午前９時から午後５時までの８時間とした。また、残り１基の養殖装置は天面を遮光せず自然光が照射される環境とした。４基の養殖装置には、手撒き給餌により一日一回、午後１時に飽食量の給餌を行い、給餌後３０分経過後に残餌を回収した。各ＬＥＤの光量子束密度は、光源から１５ｃｍのところで７．２〜７．４μｍｏｌ／ｍ２・ｓであった。
養殖装置内の水温は、自然環境温度に対応して温度５〜２２℃の範囲で変動した。養殖期間内の水温を図１に示す。養殖期間を、養殖開始から１ヶ月ごとにＩ期、ＩＩ期、ＩＩＩ期に区分すると、各期の平均水温は、１７．４℃、１３．３℃、８．８℃と季節変動を生じた。図２にマツカワの体重と体長の推移を示す。また、図３に各期の摂餌量を、図４に各期の日間成長率を示す。
Example 1
An aquaculture apparatus was constructed by attaching an LED irradiation device to a plastic cylindrical water tank having a diameter of 1000 mm and a depth of 650 mm. Four of these aquaculture devices were installed, and each was filled with aquaculture water to a depth of 650 mm. To this, 25 matsukawa each with an average weight of 34.0 ± 0.9 g and an average body length of 11.1 ± 0.1 cm were placed. I put it in. The aquaculture period was from October 12 to January 13 of the following year.
Three aquaculture devices were each irradiated with blue monochromatic light with a peak top of 464 nm, green monochromatic light with a peak top of 518 nm, and red monochromatic light with a peak top of 635 nm from an LED irradiation device. The LED light was irradiated for 8 hours from 9 am to 5 pm. In addition, the remaining one aquaculture device was set to an environment in which natural light was irradiated without shielding the top surface. The four aquaculture devices were fed by hand feeding once a day at 1:00 pm, and the remaining food was collected 30 minutes after feeding. The photon flux density of each LED was 7.2 to 7.4 μmol / m 2 · s at 15 cm from the light source.
The water temperature in the aquaculture device fluctuated in the temperature range of 5 to 22 ° C. corresponding to the natural environment temperature. The water temperature within the culture period is shown in FIG. When the aquaculture period was divided into the I, II, and III periods every month from the start of the cultivation, the average water temperature in each period varied seasonally to 17.4 ° C, 13.3 ° C, and 8.8 ° C. . FIG. 2 shows changes in weight and length of Matsukawa. FIG. 3 shows the amount of food consumed in each period, and FIG. 4 shows the daily growth rate in each period.
結果
図２に示すように、いずれの光を照射した場合でも、魚体の成長は体長変化よりも体重変化に大きく表された。各期の摂餌量および日間成長率を比較すると、図３、図４に示すようにＩ期では、青、緑、赤色光および自然光との間に摂餌量および日間成長率に差は認められず、ＩＩ期およびＩＩＩ期では、青色光の照射が最も摂餌量が多く、これに緑、赤、自然光の順に続いた。ＬＥＤ光は、青、緑、赤色光のいずれであっても、自然光と同等か自然光よりも魚体の日間成長率を促進させた。特に、水温が８．８℃のＩＩＩ期では、自然光での日間成長率は０．５％であるが、青色光を照射した場合の日間成長率は０．８と自然光照射の１．６倍に増加した。なお、緑色光を照射した場合は、自然光の日間成長率の１．４倍であった。水温が１３．３℃、１７．４℃のＩＩ基やＩＩＩ期では自然光照射の場合の日間成長率は０．８％であるが、日間成長率の低い低水温期に青、緑色光によって日間成長率を大きく促進させることができた。
Results As shown in FIG. 2, the growth of the fish body was expressed by the change in the body weight rather than the change in the body length even when any light was irradiated. Comparing food consumption and daily growth rate in each period, as shown in Figs. 3 and 4, in stage I, there was a difference in food consumption and daily growth rate between blue, green, red light and natural light. In stage II and stage III, the blue light irradiation was the most consumed, followed by green, red, and natural light. Whether the LED light is blue, green, or red light, the daily growth rate of the fish body was promoted to be equal to or more than natural light. In particular, in the III phase where the water temperature is 8.8 ° C., the daily growth rate in natural light is 0.5%, but the daily growth rate when irradiated with blue light is 0.8, 1.6 times that of natural light irradiation. Increased to. In addition, when green light was irradiated, it was 1.4 times the daily growth rate of natural light. In the II group and III period with water temperature of 13.3 ° C and 17.4 ° C, the daily growth rate in the case of natural light irradiation is 0.8%. The growth rate was greatly promoted.
（実施例２）
実施例１と同様の養殖装置を４基使用し、それぞれに深さ６５０ｍｍとなるように養殖用水を仕込み、これに平均体長１９．７±０．２ｍｍ、平均体重１７３±５．５ｇのマツカワをそれぞれ１５匹投入した。養殖期間は、４月１日から５月１２日までとした。
４基の養殖装置に、ＬＥＤ照射装置から、ピークトップが４６４ｎｍの青色単色光、ピークトップが５１８ｎｍの緑色単色光、ピークトップが６３５ｎｍの赤色単色光、ピークトップが４４７ｎｍと５５０ｎｍとからなる白色光とをそれぞれ照射した。ＬＥＤ光の照射は、午前９時から午後５時までの８時間とし、手撒き給餌により一日一回、午後１時に飽食量の給餌を行った。各ＬＥＤの放射照度は、光源から１５ｃｍのところで０．７６〜０．８０Ｗ／ｍ２であった。
養殖装置内の水温は、自然環境温度に対応して温度６〜１７℃の範囲で変動した。養殖期間を、４月１日から４月２２日までをＩ期、４月２３日から５月１２日までをＩＩ期に区分すると、各期の平均水温は、９．３±０．４℃、１２．１±０．５℃と季節変動を生じた。図５に、水温と各ＬＥＤ光を照射した際のマツカワの摂餌量の推移を示す。
(Example 2)
Using four culture devices similar to those in Example 1, each was filled with aquaculture water to a depth of 650 mm, and Matsukawa with an average body length of 19.7 ± 0.2 mm and an average body weight of 173 ± 5.5 g was used. Fifteen each were introduced. The aquaculture period was from April 1 to May 12.
Four aquaculture devices, from LED irradiation device, blue light with peak top of 464 nm, green monochromatic light with peak top of 518 nm, red monochromatic light with peak top of 635 nm, white light with peak top of 447 nm and 550 nm And were respectively irradiated. The LED light was irradiated for 8 hours from 9:00 am to 5:00 pm, and the amount of satiation was fed once a day by hand feeding. The irradiance of each LED was 0.76 to 0.80 W / m 2 at 15 cm from the light source.
The water temperature in the aquaculture device fluctuated in the temperature range of 6 to 17 ° C. corresponding to the natural environment temperature. When the culture period is divided into the I period from April 1 to April 22, and the II period from April 23 to May 12, the average water temperature in each period is 9.3 ± 0.4 ° C Seasonal variation occurred at 12.1 ± 0.5 ° C. FIG. 5 shows the transition of Matsukawa's food intake when irradiated with water temperature and each LED light.
結果
図５に示すように、水温が１０℃を越える４月２３日前後を境に摂餌行動が変化する傾向が観察された。赤色光は水温が低いＩ期では摂餌量が少なく、水温が高くなるＩＩ期では摂餌量を急激に増加させたが、青、緑、白色光はＩ期、ＩＩ期ともに摂餌量を増加させることができた。図６にＩ期、ＩＩ期の各照射光での日間成長率を示す。水温が９．３℃のＩ期では、青、緑、白色光により１．５％の日間成長率を示した。水温が１２．１℃のＩＩ期では、赤色光は青色光と略同等の日間成長率を示した。白色光も同様であった。
Result As shown in FIG. 5, the tendency for feeding behavior to change was observed around April 23, when the water temperature exceeded 10 ° C. The red light had less food intake at the low water temperature stage I, and the water consumption increased rapidly at the high water temperature stage II, but blue, green, and white light increased the food consumption at both the I and II stages. It was possible to increase. FIG. 6 shows the daily growth rate for each irradiation light in the I and II phases. In the I phase where the water temperature was 9.3 ° C., the daily growth rate was 1.5% by blue, green and white light. In stage II where the water temperature was 12.1 ° C., the red light showed a daily growth rate substantially equal to that of the blue light. The same was true for white light.
(比較例１）
実施例１と同様な養殖装置を４基使用し、それぞれに深さ５３０ｍｍとなるように養殖用水を仕込み、これに平均体長１７ｃｍ、平均体重８３ｇのマツカワをそれぞれ１０匹投入した。養殖期間は、１２月７日から翌年３月１６日までの約１４週間とした。水温は１３．８℃から１５．６℃の間で変動した。
ＬＥＤ光に代えて、１８ワットの蛍光灯２本にカラーフィルタを透過させて得た青色光、緑色光、赤色光、および白色光を照射し、２週間ごとに体重を測定した。結果を表１に示し、図７にカラーフィルター透過光の波長分布を示す。
(Comparative Example 1)
Four aquaculture apparatuses similar to those in Example 1 were used, and culture water was prepared so that each had a depth of 530 mm, and 10 matsukawas each having an average body length of 17 cm and an average body weight of 83 g were added thereto. The culture period was about 14 weeks from December 7 to March 16 of the following year. The water temperature varied between 13.8 ° C and 15.6 ° C.
Instead of LED light, two 18-watt fluorescent lamps were irradiated with blue light, green light, red light, and white light obtained by transmitting a color filter, and body weight was measured every two weeks. The results are shown in Table 1, and FIG. 7 shows the wavelength distribution of the color filter transmitted light.
結果
表１に示すように、緑色、青色光が体重増加が大きく、白色光がこれに続き、赤色光は白色光よりも低い結果となった。図７に示すように蛍光灯からの白色光には青、緑、赤色波長が含まれるためこれらが総合的に作用し、緑色光、青色光、白色光は赤色光よりも成長を促進したと考えられる。実施例１では、ＬＥＤ光照射では自然光よりも成長が促進された。しかし、自然光と白色蛍光灯の波長成分はまったく異なることが、成長の結果に差異を及ぼしたことが考えられる。なお、参考のため、実施例１で使用したＬＥＤ光源の波長を図８に示す。
Results As shown in Table 1, green and blue light had a large weight gain, followed by white light, and red light was lower than white light. As shown in FIG. 7, the white light from the fluorescent lamp includes blue, green, and red wavelengths, so these act collectively, and the green light, blue light, and white light promote the growth more than the red light. Conceivable. In Example 1, LED light irradiation promoted growth compared to natural light. However, it can be considered that the difference in the wavelength components of natural light and white fluorescent lamps had a difference in the growth results. For reference, the wavelength of the LED light source used in Example 1 is shown in FIG.
本発明によれば、高級魚であるマツカワなどのカレイ目魚類にＬＥＤ光を照射することで成長を促進するため安全性に優れ、かつ安価に高級魚を生育でき有用である。 According to the present invention, high-grade fish can be grown at low cost because the growth is promoted by irradiating LED light to flounder fish such as Matsukawa, which is a high-grade fish.
Claims (2)
水温が１０℃以下の場合に、前記青色光、緑色光または白色光のいずれかを照射し、かつ
水温が１０℃を超えた場合に、前記赤色光を照射することを特徴とする、カレイ目魚類の養殖方法。 Within the aquaculture area, red light with a single peak with a peak top of 635 ± 15 nm, blue light with a single peak with a peak top of 465 ± 15 nm, green light with a single peak with a peak top of 520 ± 15 nm, and a peak top A method for cultivating flounderfishes characterized by irradiating one of white light formed by combining a single peak of 450 ± 15 nm and a single peak having a peak top of 550 ± 20 nm,
When the water temperature is 10 ° C. or lower, the blue light, the green light, or the white light is irradiated, and when the water temperature exceeds 10 ° C., the red light is irradiated. Fish farming method.
The method for cultivating flounderfish according to claim 1, wherein the flounderfish is Matsukawa (scientific name: Verasper moseri).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012068668A JP6115802B2 (en) | 2012-03-26 | 2012-03-26 | Culture method of flounder fish by irradiation with specific wavelength light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012068668A JP6115802B2 (en) | 2012-03-26 | 2012-03-26 | Culture method of flounder fish by irradiation with specific wavelength light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013198430A JP2013198430A (en) | 2013-10-03 |
| JP6115802B2 true JP6115802B2 (en) | 2017-04-19 |
Family
ID=49519179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012068668A Active JP6115802B2 (en) | 2012-03-26 | 2012-03-26 | Culture method of flounder fish by irradiation with specific wavelength light |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6115802B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110506675A (en) * | 2019-07-22 | 2019-11-29 | 青岛博鲁泽海洋科技有限公司 | A method of cold water fishes is cultivated using net cage light filling in warm sea area |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014363686B2 (en) * | 2013-12-10 | 2018-08-09 | Philips Lighting Holding B.V. | An artificial lighting system for fish and a method of providing fish lighting |
| CN105010226B (en) * | 2015-07-24 | 2017-08-22 | 中国水产科学研究院黄海水产研究所 | A kind of industrial aquaculture illuminator and its application for promoting grouper fry growth and improving survival rate |
| CN105104265B (en) * | 2015-08-28 | 2017-12-08 | 中国水产科学研究院黄海水产研究所 | A kind of round spot halibut adult body color controlling method |
| KR102036264B1 (en) * | 2017-12-08 | 2019-10-24 | 주식회사 한길전자 | Lighting device for fish breeding and method of breeding fish using it |
| JP7114048B2 (en) * | 2018-03-15 | 2022-08-08 | 国立大学法人 鹿児島大学 | Medaka sex change induction method and medaka sex control method |
| JP7273208B1 (en) | 2022-02-18 | 2023-05-12 | 東日本電信電話株式会社 | Method for farming salmon and trout |
| CN114916480A (en) * | 2022-04-27 | 2022-08-19 | 广东海洋大学 | Method for promoting growth of Babylonia and application thereof |
| CN115136908A (en) * | 2022-06-21 | 2022-10-04 | 佛山电器照明股份有限公司 | Culture method and culture system for improving growth rate of fish |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4997411B2 (en) * | 2007-09-21 | 2012-08-08 | 岩手県 | Clayfish fish culture method and apparatus |
-
2012
- 2012-03-26 JP JP2012068668A patent/JP6115802B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110506675A (en) * | 2019-07-22 | 2019-11-29 | 青岛博鲁泽海洋科技有限公司 | A method of cold water fishes is cultivated using net cage light filling in warm sea area |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013198430A (en) | 2013-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6115802B2 (en) | Culture method of flounder fish by irradiation with specific wavelength light | |
| CN101919359B (en) | Method for comprehensively regulating and controlling gonad mature ovulation of cheilinus undulates | |
| WO2014122915A1 (en) | Poultry raising method | |
| CN103141426B (en) | Method for efficiently breeding blue crabs | |
| JP4997411B2 (en) | Clayfish fish culture method and apparatus | |
| CN102379254A (en) | Controllable synchronous brooding breeding method of cherax quadricarinatus | |
| CN103621442B (en) | The indoor full artificial breeding method of a kind of jellyfish | |
| CN105010226B (en) | A kind of industrial aquaculture illuminator and its application for promoting grouper fry growth and improving survival rate | |
| CN104335938B (en) | A kind of method of siganus guttatus seed cultivation | |
| JP6924474B2 (en) | Breeding method | |
| KR101327669B1 (en) | Seed production method of sea bass species through a food organism incubation. | |
| CN102487866A (en) | Large-scale natural propagation method for artificially culturing siganus guttatus parents | |
| CN106942226A (en) | Promote pasture and water and beneficial algae growing plants growth regulator in shrimp, the crab pool | |
| CN102283153B (en) | Batch production fry rearing technique for exopalaemon modestus | |
| KR20140071579A (en) | Method of spawning of fish through regulation of photoperiod | |
| CN114158495A (en) | Illumination regulation and control method for promoting growth of juvenile fish of sebastes schlegeli hilgendorf | |
| CN106386607A (en) | A graded multi-crop pond culture method for procambarus clarkii | |
| CN108541633A (en) | A kind of luminous environment regulation and control method improving turbot fertilized eggs hatching rate and larvae juvenile fish growth | |
| CN103461243B (en) | Low-salinity cultivating method for siniperca scherzeri steindachner fries | |
| CN107372227A (en) | A kind of lithosporic fry pond rearing cultural method | |
| KR101474407B1 (en) | Method for mass seedling production by maturation induction of phodeus notatus in korean bitterlings(acheilognathinae) through induced maturing | |
| CN103125411B (en) | Fish growth adjustment lamp | |
| CN106069935A (en) | The cultural method of Concha Ostreae | |
| JP2021185753A (en) | Method for curing sundew | |
| CN105889766B (en) | A kind of combined LED light source and its application for reducing grouper and killing and devouring rate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150325 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150918 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160127 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160202 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160401 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160726 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160923 |
|
| 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: 20170214 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170309 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6115802 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |