JP2011211937A - Method for gathering fish, and device for gathering fish - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology for gathering fish, capable of aiming at energy saving widely without giving bad effects on the amount of catch of the fish, and also effective for preventing health damage to the skin and eyes of fishermen.SOLUTION: The device for gathering the fish 10 is provided by including a plurality of first light sources 11a for irradiating water surface in the vicinity of a boat 10a, a plurality of second light sources 12 for irradiating a region more distant than the irradiating region 16 of the first light sources 11a, an electric power source part for lighting ON the first light sources 11a and the second light sources 12 and a controlling part for capable of lighting ON and OFF the first light source 11a and the second light sources 12 each independently. By lighting ON all of the plurality of the first light source 11a and the plurality of the second light sources 12 to gather cuttlefish 17, and accompanying with the passage of time, if the herd of the cuttlefish 17 gathers within the irradiating region 16 of the first light sources 11a, 11b, then the second light sources 12 is OFF, Since the surrounding area of the irradiating region 16 of the first light source 11a is dark, the herd of the cuttlefish 17 gathering in the irradiated region 16 does not escape to the surrounding dark region.

Description

  The present invention relates to a technique for gathering squids and other fish having phototactic properties in water in a predetermined area for the purpose of fishing.

  Since squids inhabiting underwater have phototaxis, a vessel (so-called squid fishing fishing boat) equipped with a large number of fishing light is used for fishing. In addition, various techniques have been proposed in the past for a fish collection method using a fishing light in a squid fishing fishing boat. As a technique related to the present application, for example, there is a fish collection method described in Patent Document 1.

Japanese Patent Application Laid-Open No. 2005-117991

  The fish collection method described in Patent Document 1 is intended to improve the attraction effect and illumination efficiency for fish and squid by changing the illumination range and light intensity of the fish lamp, and improve the catch. Since the fish lamp is continuously lit, the energy saving effect is insufficient. In addition, unless a fish lamp with a UV cut glass is used, it is not possible to eliminate the fisherman's health damage (adverse effects on the skin and eyes) caused by the UV emitted by the fish lamp.

  The problem to be solved by the present invention is to provide a fish collection technique that can greatly save energy without adversely affecting the catch, and is effective in preventing damage to fishermen's skin and eyes.

  The fish collection method according to the present invention starts the fish collection by turning on the first light source that irradiates the water surface near the ship and the second light source that irradiates a region farther than the irradiation region of the first light source, and irradiates the first light source. The second light source is turned off after the school of fish has gathered in the region.

  With such a configuration, the first light source and the second light source are turned on to emit the maximum amount of light to efficiently collect the fish, and after the school of fish has gathered in the vicinity of the ship that is within the irradiation area of the first light source, Since the second light source is turned off, significant energy savings can be achieved, and it is also effective in preventing damage to fishermen's skin and eyes. Also, if the second light source is turned off after the school of fish has gathered near the ship in the irradiation area of the first light source, the surrounding area of the irradiation area of the first light source becomes dark. The gathered school of fish will not escape to the dark area around it. For this reason, even if the second light source is turned off, the catch is not adversely affected.

  Next, the fish collection method according to the present invention irradiates the water surface near the ship with a first light source that irradiates the water surface near the ship, and turns on the second light source in water deeper than the irradiation area of the first light source to collect the fish. When the school of fish has gathered in the irradiation area of the second light source, the second light source is gradually raised to guide the fish school to the irradiation area of the first light source, and the school of fish enters the irradiation area of the first light source. After the assembly, the second light source is turned off.

  With such a configuration, after gathering a school of fish that is in a deep place underwater with light emitted from a second light source that is submerged in water, the second light source is raised so that the school of fish is irradiated with the first light source. After that, since the second light source is turned off, significant energy saving can be achieved. When the second light source is turned off, the peripheral area of the irradiation area of the first light source becomes dark, so that the school of fish once gathered in the irradiation area of the first light source does not escape to the dark area around the area. For this reason, even if the second light source is turned off, the catch is not adversely affected. In addition, since the first light source irradiates the water surface near the ship and the second light source irradiates water, it is effective for preventing fishermen's skin and eye health damage. Furthermore, if the second light source is submerged in the vicinity of a school of fish discovered using a fish finder, it can be caught day and night.

  On the other hand, it is desirable to use one or more of an electrodeless lamp, LED, organic EL, and HID lamp as the first light source. If an electrodeless lamp is used, the life of the first light source can be extended, if an LED is used, the power consumption of the first light source can be reduced, and if an organic EL is used, the weight and consumption of the first light source can be reduced. The power can be reduced, and if the HID lamp is used, the illuminance of the first light source can be increased with relatively little power.

  In addition, if an arc discharge lamp is used as the second light source, the second light source can be increased in illuminance, so that it is possible to irradiate farther areas.

  Next, a fish collecting apparatus according to the present invention is a fish collecting apparatus that can be mounted on a ship in order to carry out the fish collecting method of the present invention, the first light source for irradiating the water surface near the ship, and the first light source A second light source that irradiates a region farther than the irradiation region, a power source for turning on the first light source and the second light source, and a control that can turn on and off the first light source and the second light source independently. And a section. With such a configuration, significant energy saving can be achieved without adversely affecting the catch, and damage to the fishermen's skin and eyes can be prevented.

  In addition, the fish collecting apparatus according to the present invention is a fish collecting apparatus that can be mounted on a ship in order to carry out the fish collecting method of the present invention, and a first light source that irradiates the water surface near the ship, and a first light source that can emit light in water. Two light sources, a power source for turning on the first light source and the second light source, lifting means for moving the second light source up and down in water, and turning on the first light source and the second light source independently A control unit that can be turned off is provided. With such a configuration, significant energy saving can be achieved without adversely affecting the catch, and damage to the fishermen's skin and eyes can be prevented.

  In the fish collecting apparatus described above, it is desirable to use one or more of an electrodeless lamp, an LED, an organic EL, and an HID lamp as the first light source.

  In the fish collecting apparatus described above, it is desirable to use an arc discharge lamp as the second light source.

  According to the present invention, significant energy saving can be achieved without adversely affecting the catch, and it is possible to provide a fish collection technique that is effective in preventing damage to fishermen's skin and eyes.

It is a side view which shows the state which mounted the fish collection apparatus which is 1st embodiment of this invention in the ship. It is a top view of the fish collecting apparatus shown in FIG. It is a front view of the fish collecting apparatus shown in FIG. It is a figure which shows the fish collection method using the fish collection apparatus shown in FIGS. It is a figure which shows the fish collection method using the fish collection apparatus shown in FIGS. It is a figure which shows the fish collection method using the fish collection apparatus which is 2nd embodiment of this invention. It is a figure which shows the fish collection method using the fish collection apparatus which is 2nd embodiment of this invention.

  1st Embodiment of this invention is described based on FIGS. As shown in FIGS. 1-3, the fish collection apparatus 10 used by this embodiment is mounted in the ship 10a, and several 1st light sources 11a and 11b for irradiating the water surface of the said ship 10a vicinity, and a 1st light source A plurality of second light sources 12 for irradiating areas far from the irradiation areas of 11a and 11b, a power source unit 18 for lighting the first light sources 11a and 11b and the second light source 12, and the first light sources 11a and 11b, And a control unit 19 that can turn on and off the second light source 12 independently. The brightness when all of the plurality of second light sources 12 are turned on is set to be brighter than the brightness when all of the plurality of first light sources 11a and 11b are turned on.

  A total of four first light sources 11a and 11b are arranged in the front and rear along the left and right sides of the ship 10a. Since the first light sources 11a and 11b are each attached to the deck 10b of the ship 10a via the support column 13 so as to be tiltable, the irradiation area 16 (see FIG. 4) described later can be moved. Although electrodeless lamps (not shown) are used as the light sources of the first light sources 11a and 11b, the present invention is not limited to this.

  The plurality of second light sources 12 are suspended from a plurality of horizontal support members 15 stretched between a plurality of support columns 14 erected near the bow and stern of the deck 10b of the ship 10a. The plurality of horizontal support members 15 are stretched in parallel along the front-rear direction of the ship 10a. Although an HID lamp (not shown) is used as the light source of the second light source 12, the present invention is not limited to this.

  Here, the fish collection method using the fish collection apparatus 10 is demonstrated based on FIG. 4, FIG. As shown in FIG. 4, when the ship 10a carrying the fish collection apparatus 10 arrives at the fishing ground, the first light sources 11a and 11b and the second light source are all turned on to start collecting fish. Thereby, many squids 17 that inhabit the water are attracted toward the irradiation region 16 of the first light sources 11a and 11b in the vicinity of the left and right side of the ship 10a. As time passes, as shown in FIG. 5, when the squid 17 gathers and gathers in the irradiation area 16 of the first light sources 11a and 11b, the plurality of second light sources 12 are turned off. In this case, depending on the situation, a method of turning off the plurality of second light sources 12 little by little, a method of gradually dimming, or a method of turning off all of the plurality of second light sources 12 at the same time is adopted. Can do.

  When the second light source 12 is turned off after a group of squids 17 gathers in the vicinity of the ship 10a within the irradiation region 16 of the first light sources 11a and 11b, the peripheral region of the irradiation region 16 of the first light sources 11a and 11b becomes dark. However, since the inside of the irradiation area 16 of the first light sources 11a and 11b is bright, the group of squids 17 that once gathered in the irradiation area 16 of the first light sources 11a and 11b will not escape to the dark area around them. Therefore, if the conventional fishing method is implemented with respect to the group of squids 17, many squids 17 can be captured efficiently.

  As shown in FIGS. 4 and 5, the first light sources 11a and 11b and the second light source 12 are turned on to emit the maximum amount of light, thereby efficiently guiding and gathering the squid 17, and the first light sources 11a and 11b. After the swarm of squids 17 gathers in the vicinity of the ship 10a in the irradiation region 16, the second light source 12 is turned off and fishing is performed, so that significant energy saving can be achieved. In addition, since it is possible to reduce the time during which the fisherman who enters the ship 10a and performs the fishing work is exposed to the intense light of the second light source 12, it is also effective in preventing health damage such as skin and eyes.

  As shown in FIG. 5, even if the second light source 12 is turned off after a group of squids 17 gathers in the vicinity of the ship 10a within the irradiation region 16 of the first light sources 11a and 11b, the irradiation of the first light sources 11a and 11b is performed. Since the flock of squid 17 does not escape toward the peripheral area that is significantly darker than the area 16, the catch of the squid 17 does not decrease. Moreover, since the 1st light sources 11a and 11b are comprised with the electrodeless lamp (not shown), they are long-life. 4 and 5, the case where the squid 17 is captured has been described. However, the present invention is not limited to this, and can be applied to the case where other fish having phototaxis are captured.

  Next, a second embodiment of the present invention will be described based on FIGS. As shown in FIG. 6, the fish collection apparatus 20 of the present embodiment is mounted on a ship 20a, a first light source 21 that irradiates the water surface near the ship 20a, a second light source 22 that can emit light in water, A power supply unit 28 for turning on the light source 21 and the second light source 22, a control unit 29 capable of turning on and off the first light source 21 and the second light source 22 independently, and the second light source 22 up and down in water And a winch 23 which is a lifting means to be moved. The first light source 21 has the same configuration as the first light source 11a described above, and is installed on the left and right side of the hull 20a so as to be tiltable via the support columns 13, respectively. The second light source 22 is attached in a drooping manner to the distal end portion of a wire 24 that is locked to the winch 23 so as to be drawn out and wound up.

  When the ship 20a arrives at the fishing ground, the first light source 21 is turned on to irradiate the water surface near the ship 20a, and the second light source 22 submerged in water deeper than the irradiation area 26 of the first light source 21 is turned on to turn on the fish 27. Collect. When the school of fish 27 gathers in the irradiation area of the second light source 22, the wire 24 is wound up by the winch 23 to gradually raise the second light source 22, and the school of fish 27 is moved to the first light source 21 as shown in FIG. To the irradiation region 26. Then, the second light source 22 is turned off after a group of fish 27 gathers in the irradiation region 26 of the first light source 21 as the second light source 22 rises. Thereafter, if a conventional fishing method suitable for the fish 27 is performed, the fish 27 forming a flock in the irradiation region 26 of the first light source 21 can be captured.

  In this way, after gathering a group of fish 27 in a deep place in the water by the light emitted from the second light source 22 submerged in the water, the second light source 22 is raised to make the first group of fish 27 the first. Since the second light source 22 having a large power consumption is turned off after the light source 21 is gathered to the irradiation region 26, significant energy saving can be achieved. Further, when the second light source 22 is turned off, the surrounding area of the irradiation area 26 of the first light source 21 becomes extremely dark. Therefore, once a group of fish 27 gathered in the irradiation area 26 of the first light source 21, There is no escape to dark areas. For this reason, even if it turns off the 2nd light source 22 and fishes, a catch does not reduce.

  Moreover, since the 1st light source 21 irradiates the water surface of the ship 20a vicinity, and the 2nd light source 22 irradiates underwater, it can aim at prevention of the health damage of a fisherman's skin and eyes who get on the ship 20a and perform fishing work. . Since the light source of the first light source 21 is an LED (not shown), power consumption can be reduced. It should be noted that if the second light source 22 is submerged in the vicinity of the school of fish 27 discovered using the fish finder, the above-described series of operations can be performed for day and night fishing.

  The fish collection method of the present invention can be widely used in the fishery field for the purpose of capturing squids and other fishes having phototactic properties.

DESCRIPTION OF SYMBOLS 10,20 Fish collecting apparatus 10a, 20a Ship 10b Deck 11a, 11b, 21 First light source 12, 22 Second light source 13, 14 Post 15 Horizontal support member 16, 26 Irradiation area 17 Squid 18, 28 Power supply unit 19, 29 Control unit 23 Winch 24 Wire 27 Fish

Claims (8)

  After the first light source that irradiates the water surface near the ship and the second light source that irradiates a region farther than the irradiation region of the first light source, the fish collection starts, and after the school of fish gathers in the irradiation region of the first light source The method of collecting fish characterized in that the second light source is turned off.   Irradiate the water surface near the ship with the first light source that irradiates the water surface near the ship, start the fish collection by turning on the second light source in the water deeper than the irradiation area of the first light source, and the irradiation area of the second light source When the school of fish gathers, the second light source is gradually raised to guide the school of fish to the irradiation area of the first light source, and after the school of fish gathers within the irradiation area of the first light source, the second light source is turned off. A method of collecting fish characterized by:   The method of collecting fish according to claim 1 or 2, wherein the first light source is one or more of an electrodeless lamp, an LED, an organic EL, and an HID lamp.   The method for collecting fish according to claim 1, wherein the second light source is an arc discharge lamp.   A fish collecting apparatus that can be mounted on a ship to carry out the fish collecting method according to any one of claims 1, 3, and 4, wherein a first light source that irradiates a water surface near the ship, and an irradiation area of the first light source A second light source that irradiates a farther region, a power source unit for turning on the first light source and the second light source, and a control unit capable of independently turning on and off the first light source and the second light source A fish collecting apparatus comprising:   A fish collecting apparatus that can be mounted on a ship to carry out the fish collecting method according to claim 2, wherein a first light source that irradiates the water surface near the ship and a second light source that can emit light in water. A light source, a power source for turning on the first light source and the second light source, an elevating means for moving the second light source up and down in water, and turning on the first light source and the second light source independently. And a control unit that can be turned off.   The fish collecting apparatus according to claim 5 or 6, wherein the first light source is one or more of an electrodeless lamp, an LED, an organic EL, and an HID lamp.   The fish collection apparatus according to claim 5, wherein the second light source is an arc discharge lamp.

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