Coilia mystus catching equipment and method in spawning period
Technical Field
The invention relates to the technical field of fishery, in particular to coilia mystus catching equipment and method in a spawning period.
Background
Coilia mystus is fish belonging to anchovy family and genus anchovy. The body is elongated, the side is flat, and the body is gradually elongated backwards. The abdominal scala prism is remarkable. Short, round and protruding, equal to or slightly larger than the diameter of the eye. The middle-large of the eye. Big mouth, lower position; the split is inclined. The maxillary bone extends to the base of the pectoral fin, and fine saw teeth are arranged on the lower edge of the maxillary bone. The teeth are fine and villous, and the upper jaw teeth and the lower jaw teeth are in single row; both the hoe bone and the palate bone have villous tooth belts. The gill rake is slender; the decrease in fishery production, particularly fishing production, is due to a variety of reasons, including increased population, construction of marine projects, excessive discharge of pollutants into the sea, etc., by left and right gill covers, but not in conjunction with the isthmus. The most important reasons are that the fishery resources are seriously damaged due to over-fishing caused by lack of management of the fishery resources, the enlargement of a fishing area and the increase of fishing strength.
Although fishery resources are renewable resources, their use is not unlimited. The fishery resource is characterized in that stable output can be obtained under the condition that the fishing amount does not exceed the self-renewal amount, once the fishing amount exceeds the self-renewal capacity, the output can be reduced, the situation can make the whole species lose the regeneration capacity continuously, and the species become non-renewable resources, and at present, fishermen can catch all the large and small coilia anchovy when fishing the coilia anchovy, so that the species can easily lose the regeneration capacity.
Therefore, there is a need to provide a new device and method for catching coilia ectenes in the spawning period to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides coilia mystus catching equipment and method in the spawning period, wherein when coilia mystus is caught, smaller coilia mystus can be filtered, only large coilia mystus can be caught, and the coilia mystus is prevented from losing the regeneration capacity of species due to over-catching of small coilia mystus.
The coilia mystus catching equipment in the spawning period provided by the invention comprises: a fishing net;
the separating rubber pad is fixedly arranged on the inner wall of the fishing net and divides the fishing net into a first fishing area and a second fishing area, meshes on the side wall of the first fishing area of the fishing net are smaller than meshes on the side wall of the second fishing area, and a communicating port is formed in the surface of the separating rubber pad;
a tightening assembly mounted at the bottom of the fishing net;
and the sealing assembly is arranged at the communication port on the separation rubber pad.
Preferably, the tightening assembly comprises a fixing ring and a tightening rope, a first connecting block and a second connecting block which are symmetrically arranged are respectively installed on two sides of the bottom of the fishing net, the fixing ring is fixedly installed at the bottom of the first connecting block, the tightening rope is fixedly installed at the bottom of the second connecting block, and one end, far away from the second connecting block, of the tightening rope penetrates through the fixing ring.
Preferably, the tightening assembly further comprises a sliding ring and a second pull rope, a fixed buckle is fixedly mounted at the top of the fishing net, a first pull rope is tied on the fixed buckle, the sliding ring is fixedly mounted at one end, far away from the second connecting block, of the tightening rope, the sliding ring is sleeved outside the first pull rope, and one end of the second pull rope is fixedly mounted on the side wall of the sliding ring.
Preferably, the seal assembly includes micropump and water pocket, the inner wall of separating the rubber pad still is equipped with the mounting groove, the both ends fixed mounting of mounting groove has the micropump that the symmetry set up, the output fixed mounting of micropump has the water pocket.
Preferably, the sealing assembly further comprises magnetic blocks, and magnetic blocks with attracted magnetic poles are fixedly mounted on the opposite sides of the two groups of water bags.
Preferably, the bottom of the fixing ring is fixedly provided with a connecting rod, and the bottom of the connecting rod is fixedly provided with a heavy ball.
Preferably, the fishing net is made of polyethylene and nylon materials.
Preferably, the coilia ectenes catching device in the spawning period according to claim 1, comprising the following steps:
s1, throwing the fishing net into water;
s2, after a period of time, the coilia mystus swim into the first catching region in the catching net from the bottom of the catching net, and then the bottom of the catching net is tightened through the tightening assembly, so that the coilia mystus are all trapped in the catching net;
s3, the coilia ectenes with the sizes can be trapped in the first catching region of the catching net, then the sealing assembly is controlled to open the communication port on the separating rubber pad, so that the coilia ectenes can swim to the second catching region, and the meshes of the second catching region on the catching net are large, so that the small coilia ectenes can escape from the large meshes, only the large coilia ectenes can not escape, and then the catching net is lifted up to the shore through the first pull rope 3, so that the caught large coilia ectenes are treated.
Compared with the related technology, the coilia ectenes catching equipment and method in the spawning period provided by the invention have the following beneficial effects:
1. according to the coilia mystus catching net, the coilia mystus can swim into the first catching area in the catching net from the bottom of the catching net after a period of time, then the bottom of the catching net is tightened through the tightening assembly, the coilia mystus is completely trapped in the catching net, and then the catching net is lifted to the shore, so that the coilia mystus can be prevented from escaping from the bottom of the catching net.
2. According to the invention, when fishing, the large coilia mystus can be trapped in the first fishing area of the fishing net, then the sealing assembly can be controlled to open the communication port on the separating rubber pad, so that the coilia mystus can swim to the second fishing area, and as the mesh of the second fishing area on the fishing net is larger, the small coilia mystus can escape from the larger mesh, and only the large coilia mystus can not escape, so that the large coilia mystus can be fished, the small coilia mystus can not be fished, and the species can be prevented from losing the regeneration capacity.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of coilia mystus catching device in the spawning period provided by the invention;
FIG. 2 is an enlarged schematic view of the structure at A shown in FIG. 1;
fig. 3 is a schematic view of the internal structure of the partitioned rubber pad shown in fig. 1.
Reference numbers in the figures: 1. a fishing net; 11. a first connection block; 12. a second connecting block; 2. a fixing buckle; 3. a first pull cord; 4. a tightening assembly; 41. a fixing ring; 42. tightening the rope; 43. a slip ring; 44. a second pull cord; 5. separating the rubber mats; 51. a communication port; 52. mounting grooves; 6. a seal assembly; 61. a micro-pump; 62. a water bladder; 63. a magnetic block; 7. a second fishing area; 8. a first fishing area; 9. sinking a heavy ball; 9a, a connecting rod.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the coilia ectenes catching apparatus for spawning period according to the present invention; FIG. 2 is an enlarged schematic view of the structure at A shown in FIG. 1; fig. 3 is a schematic view of the internal structure of the partitioned rubber pad shown in fig. 1. The method comprises the following steps: the fishing net comprises a fishing net 1, a separating rubber pad 5, a tightening assembly 4 and a sealing assembly 6, wherein the separating rubber pad 5 is fixedly arranged on the inner wall of the fishing net 1, a communicating port 51 is formed in the surface of the separating rubber pad 5, the tightening assembly 4 is arranged at the bottom of the fishing net 1, and the sealing assembly 6 is arranged at the communicating port 51 on the separating rubber pad 5.
In the specific implementation process, as shown in fig. 1, 2 and 3, the tightening assembly 4 includes a fixing ring 41 and a tightening rope 42, the first connecting block 11 and the second connecting block 12 which are symmetrically arranged are respectively installed on two sides of the bottom of the fishing net 1, the fixing ring 41 is fixedly installed on the bottom of the first connecting block 11, the tightening rope 42 is fixedly installed on the bottom of the second connecting block 12, and one end, far away from the second connecting block 12, of the tightening rope 42 penetrates through the fixing ring 41.
The tightening assembly 4 further comprises a sliding ring 43 and a second pull rope 44, a fixing buckle 2 is fixedly mounted at the top of the fishing net 1, a first pull rope 3 is tied on the fixing buckle 2, a sliding ring 43 is fixedly mounted at one end, far away from the second connecting block 12, of the tightening rope 42, the sliding ring 43 is sleeved outside the first pull rope 3, and one end of the second pull rope 44 is fixedly mounted on the side wall of the sliding ring 43.
It should be noted that: firstly throwing the fishing net 1 into water, swimming the coilia mystus from the bottom of the fishing net 1 into the first fishing area 8 in the fishing net 1 after a period of time, and waiting for a while, grabbing the second pull rope 44 to pull up, wherein the second pull rope 44 drives the sliding ring 43 to slide on the first pull rope 3 and drives the tightening rope 42 to move in the fixing ring 41, so that the tightening rope 42 can pull one side of the bottom of the fishing net 1 to the other side, the bottoms of the two sides of the fishing net 1 are tensioned and contacted and tightened, the coilia mystus can be trapped in the first fishing area 8 in the fishing net 1, and at the moment, when the fishing net 1 is lifted through the first pull rope 3, the coilia mystus cannot escape from the bottom of the fishing net 1, and the fishing amount of the coilia mystus is increased.
Referring to fig. 3, the sealing assembly 6 includes a micro pump 61 and a water bag 62, the inner wall of the separating rubber pad 5 is further provided with a mounting groove 52, two ends of the mounting groove 52 are fixedly provided with the micro pump 61 which are symmetrically arranged, and the output end of the micro pump 61 is fixedly provided with the water bag 62.
The sealing assembly 6 further comprises magnetic blocks 63, and the magnetic blocks 63 with attracted magnetic poles are fixedly mounted on the opposite sides of the two groups of water bags 62.
It should be noted that: under normal conditions, the two groups of micro pumps 61 pump water and fill the water bags 62, so that the two groups of water bags 62 are swelled and abut against each other to block the communication port 51 of the separation rubber gasket 5, the magnetic blocks 63 on the side walls of the two groups of water bags 62 attract each other, the connection stability of the water bags 62 can be further improved, the communication port 51 on the separation rubber gasket 5 can be conveniently blocked, after the bottom of the fishing net 1 is tightened, a plurality of anchovies with different sizes can be trapped in the first fishing area 8 of the fishing net 1, at the moment, the two groups of micro pumps 61 are started to work to pump out water in the water bags 62, so that the communication port 51 on the separation rubber gasket 5 can be opened, the anchovies with different sizes can pass through the communication port 51 to enter the second fishing area 7 of the fishing net 1, and because the meshes on the second fishing area 7 are larger than those on the first fishing area 8, the smaller anchovies can escape from the meshes on the second fishing area 7, and the larger coilia mystus can be blocked to be trapped in the catching net 1 continuously, so that the larger coilia mystus can be caught only, the smaller coilia mystus can be released, and the phenomenon that the species cannot be regenerated due to the fact that the small coilia mystus are caught excessively is avoided.
Referring to fig. 1, a connecting rod 9a is fixedly mounted at the bottom of the fixing ring 41, and a heavy ball 9 is fixedly mounted at the bottom of the connecting rod 9 a; when the fishing net 1 is thrown into water, the heavy ball 9 can throw into water under the action of gravity, so that the fishing net 1 can be dragged to throw into water together for fishing, and the fishing net 1 is prevented from floating on the water surface.
Referring to fig. 2, the fishing net 1 is made of polyethylene and nylon; the fishing net 1 made of polyethylene and nylon materials has the effects of impact resistance and wear resistance, the coilia mystus can be prevented from being broken by the coilia mystus, and the service life of the fishing net 1 is prolonged.
The working principle of the coilia mystus catching equipment and method in the spawning period provided by the invention is as follows: firstly throwing the fishing net 1 into water, throwing the coilia mystus into the water under the action of gravity through the heavy weight ball 9 after a period of time, so as to conveniently drag the fishing net 1 to throw the coilia mystus into the water together for fishing, preventing the fishing net 1 from floating on the water surface, then swimming the coilia mystus into the first fishing area 8 in the fishing net 1 from the bottom of the fishing net 1, waiting for a period of time, grabbing the second pull rope 44 to pull up, driving the sliding ring 43 to slide on the first pull rope 3 by the second pull rope 44, driving the tightening rope 42 to move in the fixing ring 41, so that the tightening rope 42 can pull one side of the bottom of the fishing net 1 to the other side, and tightening the bottoms of the two sides of the fishing net 1 by being in tight contact, thereby trapping the coilia mystus in the first fishing area 8 in the fishing net 1 completely, and then when the fishing net 1 is lifted by the first pull rope 3, the coilia mystus cannot escape from the bottom of the fishing net 1, the catching amount of the coilia mystus is improved, under normal conditions, the two groups of micro pumps 61 can pump water and fill the water bags 62, so that the two groups of water bags 62 are bulged and abut against each other to block the communication ports 51 of the separating rubber pads 5, the magnetic blocks 63 on the side walls of the two groups of water bags 62 attract each other, the connection stability of the water bags 62 can be further improved, the communication ports 51 on the separating rubber pads 5 can be conveniently blocked, after the bottom of the catching net 1 is tightened, a plurality of coilia mystus with different sizes can be trapped in the first catching region 8 of the catching net 1, at the moment, the two groups of micro pumps 61 are started to work to pump out the water in the water bags 62, so that the communication ports 51 on the separating rubber pads 5 can be opened, the coilia mystus with different sizes can pass through the communication ports 51 to enter the second catching region 7 of the catching net 1, and the meshes on the second catching region 7 are larger than those on the first catching region 8, so that the smaller coilia mystulia mystus can escape from the catching region 7, and the larger coilia mystus can be blocked to be trapped in the catching net 1 continuously, so that not only can the coilia mystus be prevented from escaping from the bottom of the catching net 1 during catching, but also the small coilia mystus can be filtered, only the large coilia mystus are caught, and the situation that the species loses the regeneration capacity due to the over-catching of the small coilia mystus is prevented.
The circuits and controls involved in the present invention are prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.