WO2016092619A1 - フジツボ類の付着抑制方法 - Google Patents
フジツボ類の付着抑制方法 Download PDFInfo
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- WO2016092619A1 WO2016092619A1 PCT/JP2014/082448 JP2014082448W WO2016092619A1 WO 2016092619 A1 WO2016092619 A1 WO 2016092619A1 JP 2014082448 W JP2014082448 W JP 2014082448W WO 2016092619 A1 WO2016092619 A1 WO 2016092619A1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/06—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
- A01M29/10—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like using light sources, e.g. lasers or flashing lights
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M99/00—Subject matter not provided for in other groups of this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
Definitions
- the present invention relates to a method for suppressing the adhesion stage larvae of barnacles from adhering to deposits in water.
- the object of the present invention is to provide a method for suppressing the adhesion stage larvae of barnacles from adhering to deposits in water.
- One embodiment of the present invention is a method for suppressing the adhesion stage larvae of barnacles from adhering to a deposit in water, including a whole wavelength range of 409 to 412 nm, and a part of a wavelength range of 400 to 460 nm.
- the method includes a step of irradiating light having a wavelength of 1 to the direction of the attachment stage larvae from the attachment. It is preferable that the light includes a part of wavelengths in a wavelength range of 400 to 440 nm.
- the light preferably has a peak in a wavelength range of 409 to 412 nm.
- the light preferably includes the entire wavelength range of 400 to 420 nm.
- the illumination intensity of the light is preferably 67.78 W / m 2 or more.
- the wavelength spectral irradiance of the light is preferably 62.9282 ⁇ Wcm ⁇ 2 nm ⁇ 1 or more in at least a part or the entire wavelength range of 409 to 412 nm. It is preferable that the light is not laser light.
- the adhesion stage larva may be a cypris larva.
- the water may be seawater.
- the light may be LED light.
- FIG. 6 is a graph showing the moving direction and position of red crested cypris larvae when irradiated with light having a peak wavelength of 562 to 582 nm (projection light).
- FIG. FIG. 6 is a graph showing the moving direction and position of a red barnacle cypris larvae when irradiated with LED light having a peak wavelength of 515 to 535 nm.
- FIG. 6 is a graph showing the moving direction and position of a red barnacle cypris larva when irradiated with LED light having a peak wavelength of 460 to 480 nm.
- FIG. 5 is a graph showing the moving direction and position of red crested cypris larvae when irradiated with LED light having a peak wavelength of 440 to 460 nm.
- FIG. 6 is a graph showing the moving direction and position of red crested cypris larvae when irradiated with LED light having a peak wavelength of 409 to 412 nm and 100 W / m 2.
- FIG. 5 is a graph showing the moving direction and position of red crested cypris larvae when irradiated with 125 W / m 2 LED light with a peak wavelength of 409 to 412 nm.
- 6 is a graph showing the moving direction and position of red crested cypris larvae when irradiated with LED light having a peak wavelength of 370 to 380 nm.
- 6 is a graph showing the moving direction and position of a cypris larva of a vertical barnacle when irradiated with light having a peak wavelength of 562 to 582 nm (projection light).
- 6 is a graph showing the moving direction and position of a cypris larva of a vertical barnacle when irradiated with LED light having a peak wavelength of 515 to 535 nm.
- 6 is a graph showing the moving direction and position of a cypris larva of a vertical barnacle when irradiated with LED light having a peak wavelength of 460 to 480 nm.
- 6 is a graph showing the moving direction and position of a Cypris larvae of a vertical barnacle when irradiated with LED light having a peak wavelength of 440 to 460 nm.
- 6 is a graph showing the moving direction and position of a cypris larva of a vertical barnacle when irradiated with LED light having a peak wavelength of 409 to 412 nm.
- FIG. 3 is a graph showing the moving direction and position of a cypris larva of a vertical barnacle when irradiated with LED light having a peak wavelength of 370 to 380 nm.
- 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with light having a peak wavelength of 562 to 582 nm (projection light).
- FIG. 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with LED light having a peak wavelength of 515 to 535 nm.
- FIG. 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with LED light having a peak wavelength of 460 to 480 nm.
- FIG. 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with LED light having a peak wavelength of 440 to 460 nm.
- 6 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with 100 W / m 2 LED light with a peak wavelength of 409 to 412 nm.
- FIG. 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with LED light having a peak wavelength of 460 to 480 nm.
- FIG. 5 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with LED light having a peak wavelength of 440 to 460
- FIG. 6 is a graph showing the moving direction and moving distance of red crested cypris larvae when irradiated with 125 W / m 2 LED light with a peak wavelength of 409 to 412 nm.
- FIG. 6 is a graph showing the moving direction and moving distance of red crested cypris larvae when LED light having a peak wavelength of 370 to 380 nm is irradiated.
- FIG. 6 is a graph showing the moving direction and moving distance of Cypris larvae of a vertical barnacle when irradiated with light having a peak wavelength of 562 to 582 nm (projection light).
- 5 is a graph showing the moving direction and moving distance of Cypris larvae of a vertical barnacle when irradiated with LED light having a peak wavelength of 515 to 535 nm.
- 6 is a graph showing the moving direction and moving distance of Cypris larvae of a vertical barnacle when irradiated with LED light having a peak wavelength of 460 to 480 nm.
- 6 is a graph showing the moving direction and moving distance of Cypris larvae of a vertical barnacle when irradiated with LED light having a peak wavelength of 440 to 460 nm.
- 5 is a graph showing the moving direction and moving distance of Cypris larvae of a vertical barnacle when irradiated with LED light having a peak wavelength of 409 to 412 nm.
- 3 is a graph showing a moving direction and a moving distance of a cypris larva of a vertical barnacle when irradiated with LED light having a peak wavelength of 370 to 380 nm.
- the method for suppressing the adhesion stage larvae of barnacles from adhering to the deposits in water includes the entire wavelength range of 409 to 412 nm, and one of the 400 to 460 nm wavelength ranges.
- separates from a light source increases, and it can prevent that an adhesion stage larva adheres to a deposit
- the adhesion stage larvae be prevented from adhering to the deposits in seawater, but not particularly in seawater, and other concentrations of saltwater such as fresh water and seawater mixed water. It may be performed in fresh water or in fresh water.
- the attachment stage larvae correspond to Cypris larvae.
- the deposits to which the attachment stage larvae adhere are not particularly limited, and examples thereof include a seawater intake facility or a seawater discharge facility, a coastal aquaculture facility, or a fishery facility of a power plant.
- the light radiated to the attachment stage larvae irradiates in the direction of the attachment stage larvae. At this time, light may be irradiated from a position closer to the deposit than the position of the attachment stage larva.
- the light irradiation direction and the angle of the deposit are not particularly limited, but are preferably close to vertical, and most preferably vertical or vertical. Therefore, the light source is preferably embedded in the deposit and emits light from the deposit itself.
- the light irradiated to the attachment stage larvae includes the entire wavelength range of 409 to 412 nm, and part of the wavelength range of 400 to 460 nm (here, “part” does not include “all”) ) (That is, not including the entire wavelength range of 400 to 460 nm).
- the light includes a part of the wavelength range of 400 to 440 nm (here, “part” does not include “all”) (that is, the entire wavelength range of 400 to 440 nm is It is preferable that it is not included.
- the light may include only the entire wavelength range of 409 to 412 nm, but preferably includes the entire wavelength range of 400 to 420 nm.
- ultraviolet light (wavelength smaller than 400 nm), visible Light (400-830 nm) and infrared (wavelength greater than 830 nm) may be included. Since the wavelength in the range of 400 nm to 420 nm has higher permeability in seawater than ultraviolet light, the present invention can exert a light effect over a wider range than the method using light containing only ultraviolet light. Further, as shown in the examples, it is preferable that the light has a peak in the wavelength range of 409 to 412 nm. This light may not be laser light.
- the irradiation intensity and irradiation time of light are not particularly limited, and those skilled in the art can appropriately and easily determine the irradiation illuminance depending on the irradiation environment (for example, water quality, water depth, transparency, etc.). is preferably .78W / m 2 or more, preferably 80W / m 2 or more, and most preferably 100W / m 2 or more.
- a wavelength spectral irradiance is 62.9282 ⁇ Wcm -2 nm -1 or more, more not less 75.5043 ⁇ Wcm -2 nm -1 or Preferably, it is 82.088 ⁇ Wcm ⁇ 2 nm ⁇ 1 or more.
- the irradiation of light to the adhesion stage larvae may be continuous or intermittent, but when it is continuous, the irradiation time is preferably 5 minutes or more, more preferably 10 minutes or more. 15 minutes or more is most preferable.
- the irradiation method is not particularly limited.
- a light irradiation device an LED irradiation device, a mercury lamp, a fluorescent tube, or the like can be used.
- an LED it is preferable to use an LED, and an optical fiber using an LED in particular. preferable.
- the bottom surface of the phototaxis test container is divided into 5 mm wide sections by drawing lines from the quartz glass plate at intervals of 5 mm, and the first to 24th sections are arranged in order from the section closest to the quartz glass plate.
- the moving direction toward the quartz glass was defined as “positive direction (positive traveling property)”
- the direction away from the quartz glass was defined as “negative direction (negative traveling property)”.
- the first to twelfth sections are defined as “positive areas”
- the thirteenth to twenty-fourth sections are defined as “negative areas”.
- the line between the twelfth section and the thirteenth section was defined as a “larvae charging line” for feeding larvae.
- the LED illumination intensity is set to 20 W / m 2 when irradiating light with a peak wavelength of 370 to 380 nm, and set to 100 W / m 2 when irradiating light with other peak wavelengths. Went.
- the red clover cypris larvae were also subjected to conditions under which LED light having a peak wavelength of 409 to 412 nm was set to an irradiation illuminance of 125 W / m 2 .
- this irradiation illuminance is a position at 0 cm from the surface of the quartz glass plate when the light emitted from the LED panel arranged outside the light running test vessel passes through the quartz glass plate and enters the light running test vessel. Measured and adjusted.
- a spectral radiometer (stock price) is measured for the peak wavelength spectral irradiance at the position of 0 cm from the surface of the quartz glass plate. It was 90.3643 ⁇ Wcm ⁇ 2 nm ⁇ 1 as measured by using MSR-7000N (manufactured by Opto Research Co., Ltd.).
- the irradiance and the peak wavelength spectral irradiance at the position of 6 cm from the surface of the quartz glass plate are Calculated.
- the photon flux density at 0 cm and 6 cm from the surface of the quartz glass plate is measured (Meiwa).
- Measurement was performed using a photon meter LI-192SA manufactured by FORSYS CORPORATION, and peak wavelength spectral irradiance was measured using a spectral radiometer (manufactured by Opt Research Co., Ltd., MSR-7000N). And the irradiance was calculated
- formula (irradiance 0.112884xphoton flux density +0.051842). And when the transmittance
- the irradiance and the peak wavelength spectrum when the irradiance at the position of 0 cm from the surface of the quartz glass plate is set to 100 W / m 2 (the peak wavelength spectral irradiance is 82.1108 ⁇ Wcm ⁇ 2 nm ⁇ 1 ).
- Cypris larvae which are the attachment stage larvae of the vertical barnacles, were similarly selected and used in the following experiments.
- FIGS. 2A to G and FIGS. 3A to F The results of Cypris larvae of red barnacles and Cypris larvae of vertical barnacles are shown in FIGS. 2A to G and FIGS. 3A to F, respectively.
- the black circles indicate the positions of the larvae at the end of the LED light irradiation, and the circled numbers in the figure indicate the positions where the larvae stopped temporarily and the larvae stopped. Shows the order.
- the distance traveled by the larvae was determined from the observation results.
- the movement directions and movement distances of red barnacle cypris larvae are summarized in FIGS. 4A-G
- FIGS. 5A-F The movement directions and movement distances of vertical barnacle cypris larvae are summarized in FIGS. 5A-F.
- the white bars indicate the movement distance in the positive direction
- the black bars indicate the movement distance in the negative direction.
- the irradiance of light having a peak wavelength of 409 to 412 nm is 67.78 W / m 2 and the peak wavelength spectral irradiance is 62.9282 ⁇ Wcm ⁇ 2 nm for both the red and blue cypris larvae. Individuals moving in the negative direction from the position of the larvae input line at -1 were confirmed (FIGS. 2E, 3E, 4E, and 5E). Thus, in order for barnacles to adhere to the deposit in water, the irradiance at the deposit is 67.78 W / m 2 or more and the peak wavelength spectral irradiance is 62.9282 ⁇ Wcm ⁇ 2 nm ⁇ 1 or more. Is effective.
Abstract
Description
走光性試験には、内寸が(長さ)12cm×(幅)5cm×(深さ)4cmの走光性試験容器を用いた。この容器は、一方の短側面の下半分が石英ガラス板(厚さ5mm、縦2cm、横5cm)からなり、この部分のみが光透過性である。石英ガラス板を通じて容器外部から容器内部にLED光が入射するように、容器の外側に光源としてのLEDパネルを配置した。
==LEDパネル==
走光性試験には、ピーク波長が562~582nmのプロジェクションライト(Olympus LG-PS2)、ピーク波長が370~380nmのLED発光素子を実装したLEDパネル(シーシーエス株式会社製、LEDパネル型式:ISL-150X150UU375TPNL)、ピーク波長が409~412nmのLED発光素子を実装したLEDパネル(シーシーエス株式会社製、LEDパネル型式:ISL-150X150-VV-TPNL)、ピーク波長が440~460nmのLED発光素子を実装したLEDパネル(シーシーエス株式会社製、LEDパネル型式:ISL-150X150BB45-TPNL)、ピーク波長が460~480nmのLED発光素子を実装したLEDパネル(シーシーエス株式会社製、LEDパネル型式:ISL-150X150-BB-TPNL)、およびピーク波長が515~535nmのLED発光素子を実装したLEDパネル(シーシーエス株式会社製、LEDパネル型式:ISL-150X150-GG-TPNL)を用いた。各LED光の波長特性を表1に示す。
==キプリス幼生の選別==
付着生物であるアカフジツボの付着期幼生であるキプリス幼生に照射照度100W/m2のプロジェクションライト(Olympus LG-PS2)光を、実験直前まで1時間以上照射し、光源に近づく行動をとる個体を以下の実験に使用した。
==幼生の観察方法==
部屋の一画に暗幕を用いて、外部の光を完全に遮光した暗室(試験室)を設け、この暗室内で次の実験をした。
==結果==
アカフジツボのキプリス幼生およびタテジマフジツボのキプリス幼生はいずれも、ピーク波長が562~582nmのプロジェクションライト光、ピーク波長が460~480nmおよび515~535nmの光に対して強い正の走光性を示した(図2A~C、図3A~C、図4A~C、図5A~C、図6、図7)。これに対し、ピーク波長が440~460nmの光を照射した場合、レーン1まで移動する個体が減少し、また、一時的に負方向へ移動する個体が出現した(図2D、図3D、図4D、図5D、図6、図7)。さらに、ピーク波長が409~412nmの光を照射した場合、レーン1まで移動する個体がさらに減少し、また、負方向へ移動する個体が増加した(図2E,F、図3E、図4E,F、図5E、図6、図7)。
Claims (10)
- フジツボ類の付着期幼生が水中で付着物に付着することを抑制する方法であって、
前記付着期幼生に対し、409~412nmの波長全域を含み、400~460nmの波長域のうち一部の波長を含む光を、前記付着物から前記付着期幼生の方向に照射する工程を含む方法。 - 前記光が400~440nmの波長域のうち一部の波長を含むことを特徴とする、請求項1に記載の方法。
- 前記光が409~412nmの波長域においてピークを有することを特徴とする、請求項1または2に記載の方法。
- 前記光が400~420nmの波長全域を含むことを特徴とする、請求項1~3のいずれか1項に記載の方法。
- 前記光の照射照度が67.78W/m2以上であることを特徴とする、請求項1~4のいずれか1項に記載の方法。
- 前記光の波長分光放射照度が、409~412nmの波長域の少なくとも一部または全域において、62.9282μWcm-2nm-1以上であることを特徴とする、請求項1~4のいずれか1項に記載の方法。
- 前記光がレーザー光でないことを特徴とする、請求項1~6のいずれか1項に記載の方法。
- 前記付着期幼生がキプリス幼生であることを特徴とする、請求項1~7のいずれか1項に記載の方法。
- 前記水が海水であることを特徴とする、請求項1~8のいずれか1項に記載の方法。
- 前記光がLED光であることを特徴とする、請求項1~8のいずれか1項に記載の方法。
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CN201480082242.8A CN106793769B (zh) | 2014-12-08 | 2014-12-08 | 藤壶类的附着抑制方法 |
US15/512,633 US11134670B2 (en) | 2014-12-08 | 2014-12-08 | Methods of suppressing settlement of barnacles |
JP2015559345A JP5940747B1 (ja) | 2014-12-08 | 2014-12-08 | フジツボ類の付着抑制方法 |
EP14907701.8A EP3180978B1 (en) | 2014-12-08 | 2014-12-08 | Method for restraining adhesion of barnacles |
KR1020177007814A KR20170053639A (ko) | 2014-12-08 | 2014-12-08 | 따개비류의 부착 억제 방법 |
PCT/JP2014/082448 WO2016092619A1 (ja) | 2014-12-08 | 2014-12-08 | フジツボ類の付着抑制方法 |
SG11201702471YA SG11201702471YA (en) | 2014-12-08 | 2014-12-08 | Methods of suppressing settlement of barnacles |
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JP6118239B2 (ja) * | 2013-11-29 | 2017-04-19 | 雅敏 堀 | 害虫の防除方法及び防除装置 |
WO2015145526A1 (ja) | 2014-03-24 | 2015-10-01 | 中国電力株式会社 | 付着期幼生の遊泳または匍匐停止方法 |
JP6215967B2 (ja) | 2014-03-24 | 2017-10-18 | 中国電力株式会社 | 光照射によって翼形類およびフジツボ類を殺す方法 |
EP3180978B1 (en) | 2014-12-08 | 2020-04-29 | The Chugoku Electric Power Co., Inc. | Method for restraining adhesion of barnacles |
CN106795702B (zh) * | 2015-03-27 | 2019-08-30 | 中国电力株式会社 | 附着生物的附着防止方法 |
JP5961772B1 (ja) * | 2015-03-27 | 2016-08-02 | 中国電力株式会社 | バイオフィルムの形成抑制方法 |
WO2019130698A1 (ja) | 2017-12-26 | 2019-07-04 | 日本たばこ産業株式会社 | 屋内性のマダラメイガ亜科に属する蛾の成虫の捕獲方法、光源装置及び捕獲器 |
KR102121761B1 (ko) | 2018-11-05 | 2020-06-11 | 동강엠텍(주) | 따개비의 부착을 방지하는 해상 기상 관측용 부이 |
KR102121771B1 (ko) | 2018-11-05 | 2020-06-11 | 동강엠텍(주) | 케이블 꼬임 및 따개비의 부착을 방지하는 해상 기상 관측용 부이 |
KR102193216B1 (ko) | 2019-10-11 | 2020-12-18 | 동강엠텍(주) | 해상 기상 관측용 부이의 파손 방지 및 진단 장치 |
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US11134670B2 (en) | 2021-10-05 |
CN106793769A (zh) | 2017-05-31 |
EP3180978A4 (en) | 2017-11-01 |
US20170290326A1 (en) | 2017-10-12 |
EP3180978A1 (en) | 2017-06-21 |
SG11201702471YA (en) | 2017-06-29 |
KR20170053639A (ko) | 2017-05-16 |
JPWO2016092619A1 (ja) | 2017-04-27 |
JP5940747B1 (ja) | 2016-06-29 |
CN106793769B (zh) | 2020-10-23 |
EP3180978B1 (en) | 2020-04-29 |
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