CN104542510B - River mouth and coastal zone sea area eel fry catching combination device and application method thereof - Google Patents
River mouth and coastal zone sea area eel fry catching combination device and application method thereof Download PDFInfo
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- CN104542510B CN104542510B CN201410728011.1A CN201410728011A CN104542510B CN 104542510 B CN104542510 B CN 104542510B CN 201410728011 A CN201410728011 A CN 201410728011A CN 104542510 B CN104542510 B CN 104542510B
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- eel
- seedling
- rack
- fishing
- river mouth
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K71/00—Floating nets
Abstract
The invention relates to a river mouth and coastal zone sea area eel fry catching combination device and an application method thereof. The river mouth and coastal zone sea area eel fry catching combination device comprises a net frame and a fishing net, wherein the net frame is of a protruded sealed polygonal shape, the fishing net is installed on the net frame, the fishing net is enclosed to form a conical container adopting the net frame as the bottom, the conical container is arranged at a bottom opening of the net frame, the opening faces the tidal water direction, an eel fry container is arranged on the top part of the conical container, the net frame is vertically arranged, a vertax corner of the upper part of the net frame is connected with a large buoy through a connecting rope, a lower vertax corner of the net frame is connected with a moso bamboo pile through a vertical rope, the moso bamboo pile is embedded into seabed sediments, and the position, close to the conical top, of the fishing net is connected with a small buoy through another connecting rope. The river mouth and coastal zone sea area eel fry catching combination device is simple, novel, low in cost and easy to control; the eel fry can be collected once a day, the eel fry can be bagged after the bag is filled with oxygen to be brought back to a purchasing station, the labor cost can be effectively reduced, the device and the method also can be used for monitoring the supplementing situation and resource distribution of the river mouth and coastal zone eel fry resource every year, and a monitoring method is provided for reasonably developing and utilizing the eel fry seed resource.
Description
Technical field
The invention belongs to eel fry fishing engineering device technique field, more particularly to a kind of river mouth and littoral zone marine site eel fry fishing group
Attach together and put and its using method.
Background technology
It is in the vast river mouth and littoral zone marine site of East Asia Region, such as China Coast, entrance of Changjiang River, Japan, Korea etc., annual
Winter and spring have substantial amounts of Anguilliforme seed (mainly Japanese eel germling) to reach the marine site carries out anadromous migration, reaches
The activities such as fresh water area carries out raising an infant, forage, when eel is grown into into again migration to being laid eggs in the sea greatly.Due to the price of eel Seedling
In fish fry, rank among the best always, be 1～35 yuan per tail procurement price, though fluctuation is larger, bring to fisherman huge
Economic interests, therefore attracted substantial amounts of East Asia Region fisherman to be fished for.Due to eel seedling body type be similar to it is snakelike, in water exercise
Also the motion of Serpentiss, and individual very little are similar to, general body length only has 5～8mm, and diameter about 1mm, smooth in appearance are difficult to fish for handss.
There is traditional net for fishing for eel Seedling fishing net, handss trawlnet or ship to choose net etc., but these netting gears are respectively provided with certain shortcoming, such as handss
Diddle-net, handss trawlnet can only carry out fishing for eel Seedling in Intertidal zone shallow waters, and ship chooses net then it is necessary to have one large tonnage
Fishing boat, it is costly, and 2 nets can be hung per ship.Therefore, if it is desirable to carry out the eel Seedling of littoral zone shallow sea area on a large scale
Fishing for and just have to a kind of practical and convenient Fixed nets device of design, and adapt to larger tiding tide affects.
The content of the invention
The technical problem to be solved be to provide a kind of river mouth and littoral zone marine site eel fry fishing combination unit and
Its using method, it is adaptable to river mouth and Coastal Zone Terrain feature eel fry fishing combination unit and catching method, with simplicity,
The advantages of operability, understandability, it is especially suitable for the eel fry fishing in the littoral zone marine site of silt or Muddy Bottoms sediment types
Activity.
The technical solution adopted for the present invention to solve the technical problems is：A kind of river mouth is provided and littoral zone marine site eel Seedling is caught
Combination unit is dragged for, including rack and etting, the rack is the closed polygon of an evagination, etting is housed on the rack,
The etting surrounds a conical vessel with rack as bottom, and the conical vessel is located at the bottom opening of rack, the opening
Towards tidewater direction, the conical vessel vertex of a cone position is provided with eel Seedling and receives Seedling device in direction, and the rack is vertically arranged, its top
Connect big floating drum by connecting rope on drift angle, the drift angle of the rack bottom is connected with Phyllostachys pubescens Mazei ex H.de Lebaie stake by vertical cord, described
Seabed silt is imbedded in Phyllostachys pubescens Mazei ex H.de Lebaie stake, and the etting connects keg buoy by connecting rope near vertex of a cone position.
Described vertical cord one end is connected with rack, opening of the other end with rope sling, the rope sling and Phyllostachys pubescens Mazei ex H.de Lebaie stake upper end
Place's connection.
The rack is rectangular, a length of 6m, a width of 1.5～2m.
Four Phyllostachys pubescens Mazei ex H.de Lebaies of the net frame, and make per being tied up with nettle between two Phyllostachys pubescens Mazei ex H.de Lebaies.
Sutured by netting twine between the rack and etting.
The taper etting cone top part is in keed shape, and keed shape parcel eel Seedling is received and Seedling device tightened in end.
The size of mesh of the etting is 1mm.
Described connection rope one end carries rope sling, and the rope sling is enclosed within the center hole of big floating drum or keg buoy.
The diameter of center hole is 5cm.
Steering ring is installed between the rope of the vertical cord and rack lower end.
The steering ring is rounded, a diameter of 6mm.
The steering ring is made with stainless steel material.
The big floating drum is cylinder, a diameter of 50cm.
The big floating drum is made with plastic foam material.
The keg buoy is cylinder, a diameter of 20cm.
The keg buoy is made with plastic foam material.
The vertical cord a length of 5～10m, a diameter of 1cm
The vertical cord is made with polythene material.
The eel Seedling receives Seedling device includes cylindrical plastic bucket and protection bucket, and the cylindrical plastic bucket is in the circular cone that decaptitates
Shape, the less one end of the cylindrical plastic bucket be cased with protecting in bucket, the cylindrical plastic bucket from medium position to small end according to
It is secondary equipped with circular fence, W shape check plates, Ji Miaogai, the protection barreled has collection Seedling device, the collection Seedling device peristome and Ji Miaogai
Connection.
The larger a diameter of 15cm in one end of the cylindrical plastic bucket, a diameter of 10cm in less one end, wall thickness is 2mm,
Length is 14cm.
The a diameter of 13cm of the circular fence, in the circular fence, fence hole is square, the length of side is 1cm.
The circular fence is in be detachably connected by draw-in groove and cylindrical plastic bucket.
The circular fence is made of plastic.
Pass through screw threads for fastening between the cylindrical plastic bucket and protection bucket.
The W shapes check plate is circle, and side is W shapes, and 2 row small sircle holes are provided with the W shapes check plate.
On the W shapes check plate, each column small sircle hole has 20；A diameter of 2.5～the 3mm of the small sircle hole.
The Ji Miaogai is circle, and there is a circle small sircle hole at edge, and also there is 1 row small sircle hole centre.
The collection Miao Gai edges have a circle small sircle hole to have 32, and middle 1 row small sircle hole has 6, and the small sircle hole is a diameter of
2.5～3mm.
The using method in a kind of river mouth and littoral zone marine site eel fry fishing combination unit, step are as follows：
A it is to fish for place that () chooses the littoral zone that the depth of water is 2～10m, and substrate is preferred with silt or Muddy Bottoms；
B () takes nobby or canoe, driven piles with 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9), and Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) lower end is cut as wedge, and
More than 3 apertures (11), a diameter of 1cm of aperture (11) are bored respectively in the both sides of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) middle and lower part；Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) is tied up
On the iron of 10m length, washed by water along the lower end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) with hydraulic giant, in seabed, silt (13) forms a deep hole, firmly
Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) is pressed down, is nuzzled in deep hole；At a distance of 6～8m, there is rope in system to 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9) in advance for the upper end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9)
Set (6) is simultaneously connected with vertical cord (8), is dropped out the water surface, is connected with rack (1) after being easy to；
C rack is installed by () on the coast, and be connected with etting；After transporting sea to, by vertical cord and rack lower end both sides
Rope by steering ring be connected, the effect of steering ring is easy for rack and can be turned to the fluctuation tide of tidewater, so as to reach
To network interface always towards tidewater direction, the efficiency of eel Seedling is fished in raising；
D the rope on () rack upper end both sides is connected with 2 big floating drums by 2 connection ropes and rope sling, while in net
The postmedian of clothing is connected with 1 keg buoy again by connection rope and rope sling, plays a part of to stretch etting；
E () installs the slide fastener of 1 a length of 30cm at the keed of etting, be easy to take out and lay eel Seedling and receive Seedling device；Simultaneously
The end of keed is tightened with netting twine；
F () repeats step (b)～(e), the eel fry fishing combination unit is arranged side by side along coastline, the eel
Seedling is fished for combination unit and is arranged along the direction perpendicular to embankment, and can proceed with this every 1km distances and fish for dress
The installment work put；
G () in daily beginning at ebb tide, fishing boat leaves for fishing operation area from harbour, carry out the collection of eel Seedling in slack period
Work；Eel Seedling is taken out from the keed of etting and receives Seedling device, further taken out the eel Seedling seed in collection Seedling device, load in bucket；Institute is collected
Load after some seeds in oxygen bag, oxygen bag equipped with half bag of sea water, is taken back on the bank in advance；
H () is counted per the daily eel fry fishing quantity of 100 nets, and monitors river mouth or littoral zone by above-mentioned step
Monthly, the yield and resource distribution situation of annual eel Seedling.
The step (b), (c) started to be prepared the previous moon in the phase of fishing for, and (d), (e) for 2 days before fishing for during beginning
The less weather of stormy waves is selected at sea to install.
Beneficial effect
It is an advantage of the current invention that solve devise it is a kind of suitable for river mouth and the eel fry fishing of Coastal Zone Terrain feature
Device and catching method, have the advantages that simplicity, operability, understandability, are especially suitable for silt or Muddy Bottoms substrate
The eel fry fishing in the littoral zone marine site of type and monitoring activity.The invention can greatly improve the income of fisherman, and increase is fished for
Amount, the space-time that also as the monitoring method of Anguillar japonica seed, can understand the resource change and long-term variation.Newly-designed finishing device
As a result of steering ring, it is possible to achieve the network interface of catching net always towards the direction of tidewater fluctuation tide, can be improved and fish for eel
The efficiency of Seedling, labor cost is saved, the eel Seedling of employing is received Seedling device device and can greatly improve the survival rate of eel Seedling and reduce and damage
Evil degree.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 receives Seedling device structural representation for eel Seedling.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can be made various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
A kind of river mouth and littoral zone marine site eel fry fishing combination unit, including rack 1 and etting 2, the rack 1 is one
The closed polygon of evagination, is equipped with etting 2 on the rack 1, the etting 2 surrounds a conical vessel with rack 1 as bottom,
The conical vessel is located at the bottom opening of rack 1, and the opening direction is towards tidewater direction 14, the conical vessel vertex of a cone position
Eel Seedling is installed and has received Seedling device 3, the rack 1 has been vertically arranged, connect big floating drum 4, institute by connecting rope 7 on the drift angle on its top
The drift angle for stating 1 bottom of rack is connected with Phyllostachys pubescens Mazei ex H.de Lebaie stake 9 by vertical cord 8, and seabed silt 13, the net are imbedded in the Phyllostachys pubescens Mazei ex H.de Lebaie stake 9
Clothing 2 connects keg buoy 15 by connecting rope 7 near vertex of a cone position.
8 one end of the vertical cord is connected with rack 1, the other end is with rope sling 6, the rope sling 6 and 9 upper end of Phyllostachys pubescens Mazei ex H.de Lebaie stake
At opening, 10 connect.
The rack 1 is rectangular, a length of 6m, a width of 1.5～2m.
The rack 1 is with four Phyllostachys pubescens Mazei ex H.de Lebaies, and makes per being tied up with nettle between two Phyllostachys pubescens Mazei ex H.de Lebaies.
Sutured by netting twine between the rack 1 and etting 2.
2 cone top part of taper etting is in keed shape, and keed shape parcel eel Seedling is received and Seedling device 3 tightened in end.
The size of mesh of the etting 2 is 1mm.
7 one end of the connection rope carries rope sling 6, and the rope sling 6 is enclosed within the center hole 5 of big floating drum 4 or keg buoy 15.
5 a diameter of 5cm of the center hole.
Steering ring 12 is installed between the rope of 1 lower end of the vertical cord 8 and rack.
The steering ring 12 is rounded, a diameter of 6mm.
The steering ring 12 is made with stainless steel material.
The big floating drum 4 is cylinder, a diameter of 50cm.
The big floating drum 4 is made with plastic foam material.
The keg buoy 15 is cylinder, a diameter of 20cm.
The keg buoy 15 is made with plastic foam material.
8 a length of 5～10m of the vertical cord, a diameter of 1cm.
The vertical cord 8 is made with polythene material.
The eel Seedling receives Seedling device 3 includes cylindrical plastic bucket 61 and protection bucket 62, and the cylindrical plastic bucket 61 is in decaptitating
Cone, 61 less one end of the cylindrical plastic bucket is cased with protecting in bucket 62, the cylindrical plastic bucket 61 from middle part
Position is sequentially arranged with circular fence 63, W shapes check plate 64, collection Seedling lid 65 to small end, and the protection bucket 62 is equipped with collection Seedling device 66, institute
State 66 peristome of collection Seedling device to be connected with collection Seedling lid 65.
The larger a diameter of 15cm in one end of the cylindrical plastic bucket 61, a diameter of 10cm in less one end, wall thickness is
2mm, length are 14cm.
63 a diameter of 13cm of the circular fence, in the circular fence 63, fence hole is square, the length of side is 1cm.
The circular fence 63 is in be detachably connected by draw-in groove and cylindrical plastic bucket 61.
The circular fence 63 is made of plastic.
Pass through screw threads for fastening between the cylindrical plastic bucket 61 and protection bucket 62.
The W shapes check plate 64 is circle, and side is W shapes, and 2 row small sircle holes are provided with the W shapes check plate.
On the W shapes check plate 64, each column small sircle hole has 20；A diameter of 2.5～the 3mm of the small sircle hole.
The collection Seedling lid 65 is circle, and there is a circle small sircle hole at edge, middle also to have 1 row small sircle hole.
65 edge of collection Seedling lid has a circle small sircle hole to have 32, and middle 1 row small sircle hole has 6, the roundlet bore dia
For 2.5～3mm.
The using method in a kind of river mouth and littoral zone marine site eel fry fishing combination unit, step are as follows：
A it is to fish for place that () chooses the littoral zone that the depth of water is 2～10m, and substrate is preferred with silt or Muddy Bottoms；
B () takes nobby or canoe, driven piles with 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9), and Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) lower end is cut as wedge, and
More than 3 apertures (11), a diameter of 1cm of aperture (11) are bored respectively in the both sides of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) middle and lower part；Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) is tied up
On the iron of 10m length, washed by water along the lower end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) with hydraulic giant, in seabed, silt (13) forms a deep hole, firmly
Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) is pressed down, is nuzzled in deep hole；At a distance of 6～8m, there is rope in system to 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9) in advance for the upper end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9)
Set (6) is simultaneously connected with vertical cord (8), is dropped out the water surface, is connected with rack (1) after being easy to；
C rack 1 is installed by () on the coast, and be connected with etting 2；After transporting sea to, by vertical cord 8 and 1 lower end of rack
The rope on both sides is connected by steering ring 12, and the effect of steering ring 12 is easy for rack 1 can be carried out turning with the fluctuation tide of tidewater
To so as to always reach network interface towards tidewater direction 14, the efficiency of eel Seedling is fished in raising；
D the rope on 1 upper end both sides of () rack is connected with 2 big floating drums 4 by 2 connection ropes 7 and rope sling 6, while
It is connected with 1 keg buoy 15 again by connection rope 7 and rope sling 6 in the postmedian of etting 2, plays a part of to stretch etting 2；
E () installs the slide fastener of 1 a length of 30cm at the keed of etting 2, be easy to take out and lay eel Seedling and receive Seedling device 3；Together
When the end of keed is tightened with netting twine；
F () repeats step (b)～(e), the eel fry fishing combination unit is arranged side by side along coastline, the eel
Seedling is fished for combination unit and is arranged along the direction perpendicular to embankment, and can proceed with this every 1km distances and fish for dress
The installment work put；
G () in daily beginning at ebb tide, fishing boat leaves for fishing operation area from harbour, carry out the collection of eel Seedling in slack period
Work；Eel Seedling is taken out from the keed of etting and receives Seedling device 3, further taken out the eel Seedling seed in collection Seedling device 66, load in bucket；Collect
Load after all of seed in oxygen bag, oxygen bag equipped with half bag of sea water, is taken back on the bank in advance；
H () is counted per the daily eel fry fishing quantity of 100 nets, and monitors river mouth or littoral zone by above-mentioned step
Monthly, the yield and resource distribution situation of annual eel Seedling.
The step (b), (c) started to be prepared the previous moon in the phase of fishing for, and (d), (e) for 2 days before fishing for during beginning
The less weather of stormy waves is selected at sea to install.
Further illustrate with reference to example：
As a example by the experiment of eel fry fishing that entrance of Changjiang River, Hangzhou Wan waters are carried out, sediment types based on argillo arenaceous, the depth of water
In 3～10m, experimental period is 2010～2013 years, and 1 annual～April is carried out.
It is mid or late December in annual winter, starts to prepare the manufacturing process of rectangle rack and etting on the coast, and
The fixation and installment work of Phyllostachys pubescens Mazei ex H.de Lebaie stake, each Phyllostachys pubescens Mazei ex H.de Lebaie stake were carried out before December 20 to January 10 in the experiment marine site for choosing
There is rope to lead to the water surface, the Phyllostachys pubescens Mazei ex H.de Lebaie stake direction vertical with embankment line is installed, the several rows of Phyllostachys pubescens Mazei ex H.de Lebaie stake of formation, and by thing
The rectangle rack first made, etting etc. are connected with rope, and the upper end both sides of rack are connected with big floating drum by rope respectively,
Eel fry fishing combination unit has just been fixed so.
When formally fishing for, 1 eel Seedling is installed at the keed of each etting and receives Seedling device；Simultaneously the end of keed is used
Netting twine is tightened；The sampling work of eel Seedling is carried out when slack tide, eel Seedling is taken out from the keed of etting and is received Seedling device, further take out collection Seedling device
In eel Seedling seed, load bucket in；Load after having collected all of seed in oxygen bag, oxygen bag is in advance equipped with half bag of sea
Water, takes back on the bank.As a result of such eel fry fishing device and catching method, the catching rate of eel Seedling improves about 1 times,
The survival rate of eel Seedling has brought up to 98% from original 40%, only a small amount of eel Seedling receive in Seedling device due to not entering into eel Seedling and
Rubbed with etting or rubbish etc. or anoxia and it is dead；The loss ratio of eel Seedling seedling body also from original 60% drop to 10% with
It is interior.In addition, Jing is had to during conventional eel fry fishing, often (wanting to carry out within 3 hours a seedling taking when fishing for the Sheng phase) carries out seedling taking, not so
Seed can be dead because of overstocking, and receives Miao Qihou using eel Seedling is installed, and seedling taking time lengthening is 1 day or even 3 days, reduces labor
Fatigue resistance.Therefore, the invention increased eel fry fishing yield and efficiency, and also improve eel Seedling sells price, with operation
Easy, generalization is strong, understandability, the features such as save labour force and improve eel Seedling yield, solve Anguilliforme seed fishes for difficulty
Topic, alternatively monitors supplementary information and the resource distribution of river mouth and littoral zone eel Seedling resource every year, is rational exploitation and utilization anguilla japonica
Mesh seed resource provides monitoring method.
Claims (11)
1. a kind of river mouth and littoral zone marine site eel fry fishing are combined the unit, including rack (1) and etting (2), it is characterised in that institute
The closed polygon that rack (1) is an evagination is stated, etting (2) is housed on the rack (1), the etting (2) surrounds one
With conical vessel of the rack (1) as bottom, the conical vessel is located at the bottom opening of rack (1), the direction direction of the opening
Tidewater direction (14), the conical vessel vertex of a cone position are provided with eel Seedling and receive Seedling device (3), and the rack (1) is vertically arranged, its top
Drift angle on connect big floating drum (4) by connecting rope (7), the drift angle of rack (1) bottom passes through vertical cord (8) and hair
Bamboo stake (9) connects, the Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) embedment seabed silt (13), and the etting (2) is near vertex of a cone position by connecting rope
(7) connect keg buoy (15), the eel Seedling receives Seedling device (3) including cylindrical plastic bucket (61) and protection bucket (62), the cylinder
Charging basket (61) is moulded in the cone for decaptitating, the less one end of the cylindrical plastic bucket (61) is cased with protecting bucket (62), described
Circular fence (63), W shape check plates (64), Ji Miaogai are sequentially arranged with from medium position to small end in cylindrical plastic bucket (61)
(65), protection bucket (62) is connected with Ji Miaogai (65) equipped with Seedling device (66), collection Seedling device (66) peristome is collected.
2. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Vertical cord (8) one end is connected with rack (1), the other end carries rope sling (6), and the rope sling (6) is opened with Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) upper end
(10) connection at mouthful.
3. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Etting (2) cone top part is in keed shape, and keed shape parcel eel Seedling is received and Seedling device (3) tightened in end.
4. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Connection rope (7) one end carries rope sling (6), and the rope sling (6) is enclosed within the center hole (5) of big floating drum (4) or keg buoy (15).
5. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Steering ring (12) is installed between the rope of vertical cord (8) and rack (1) lower end.
6. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Circular fence (63) is by draw-in groove and cylindrical plastic bucket (61) in being detachably connected.
7. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Pass through screw threads for fastening between cylindrical plastic bucket (61) and protection bucket (62).
8. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
W shape check plates (64) is circle, and side is W shapes, and 2 row small sircle holes are provided with the W shapes check plate.
9. a kind of river mouth according to claim 1 and littoral zone marine site eel fry fishing are combined the unit, it is characterised in that described
Ji Miaogai (65) is circle, and there is a circle small sircle hole at edge, middle also to have 1 row small sircle hole.
10. a kind of river mouth as claimed in any of claims 1 to 9 and littoral zone marine site eel fry fishing are combined the unit
Using method, step are as follows：
A it is to fish for place that () chooses the littoral zone that the depth of water is 2～10m, and substrate is preferred with silt or Muddy Bottoms；
B () takes nobby or canoe, driven piles with 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9), and Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) lower end is cut for wedge, and in hair
More than 3 apertures (11), a diameter of 1cm of aperture (11) are bored respectively in the both sides of bamboo stake (9) middle and lower part；Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) is tied up in 10m
On long iron, washed by water along the lower end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9) with hydraulic giant, in seabed, silt (13) forms a deep hole, firmly by hair
Bamboo stake (9) is pressed down, and is nuzzled in deep hole；At a distance of 6～8m, there is rope sling (6) in system to 2 Phyllostachys pubescens Mazei ex H.de Lebaie stakes (9) in advance for the upper end of Phyllostachys pubescens Mazei ex H.de Lebaie stake (9)
And be connected with vertical cord (8), the water surface is dropped out, is connected with rack (1) after being easy to；
C rack (1) is installed by () on the coast, and be connected with etting (2)；After transporting sea to, by vertical cord (8) and rack (1)
The rope on lower end both sides is connected by steering ring (12), and the effect of steering ring (12) is easy for rack (1) can rising with tidewater
Ebb tide is turned to, and so as to always reach network interface towards tidewater direction (14), the efficiency of eel Seedling is fished in raising；
D the rope on () rack (1) upper end both sides is connected with 2 big floating drums (4) by 2 connections rope (7) and rope sling (6),
Postmedian in etting (2) is connected with 1 keg buoy (15) again by connection rope (7) and rope sling (6) simultaneously, plays stretching
The effect of etting (2)；
E () installs the slide fastener of 1 a length of 30cm at the keed of etting (2), be easy to take out and lay eel Seedling and receive Seedling device (3)；Together
When the end of keed is tightened with netting twine；
F () repeats step (b)～(e), the eel fry fishing combination unit is arranged side by side along coastline, and the eel Seedling is caught
Drag for combination unit to be arranged along the direction perpendicular to embankment, and the finishing device is can proceed with every 1km distances
Installment work；
G () in daily beginning at ebb tide, fishing boat leaves for fishing operation area from harbour, carry out the collection work of eel Seedling in slack period
Make；Eel Seedling is taken out from the keed of etting and receives Seedling device (3), further taken out the inner eel Seedling seed of collection Seedling device (66), load in bucket；Collect
Load after complete all of seed in oxygen bag, oxygen bag equipped with half bag of sea water, is taken back on the bank in advance；
H () is counted per the daily eel fry fishing quantity of 100 nets by above-mentioned step, and monitor river mouth or littoral zone monthly,
The yield and resource distribution situation of annual eel Seedling.
The using method in a kind of 11. river mouths according to claim 10 and littoral zone marine site eel fry fishing combination unit, its
It is characterised by, the step (b), (c) started to be prepared the previous moon in the phase of fishing for, (d), (e) for 2 days before fishing for during beginning
The less weather of stormy waves is selected at sea to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728011.1A CN104542510B (en) | 2014-12-03 | 2014-12-03 | River mouth and coastal zone sea area eel fry catching combination device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728011.1A CN104542510B (en) | 2014-12-03 | 2014-12-03 | River mouth and coastal zone sea area eel fry catching combination device and application method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN104542510A CN104542510A (en) | 2015-04-29 |
| CN104542510B true CN104542510B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410728011.1A Expired - Fee Related CN104542510B (en) | 2014-12-03 | 2014-12-03 | River mouth and coastal zone sea area eel fry catching combination device and application method thereof |
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| Country | Link |
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| CN (1) | CN104542510B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106857427A (en) * | 2017-04-11 | 2017-06-20 | 广东海洋大学 | A kind of natural fry finishing device of yellowfin spine porgy and its fish for transportation resources |
| CN107296018A (en) * | 2017-08-24 | 2017-10-27 | 国家海洋局第二海洋研究所 | Benthon collector and harvester |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201779Y (en) * | 1994-05-07 | 1995-06-28 | 陈海平 | Eel fry catcher |
| CN1826886A (en) * | 2006-03-31 | 2006-09-06 | 罗明江 | Fishing net and its manufacturing method |
| KR100991372B1 (en) * | 2008-10-20 | 2010-11-03 | 한국해양연구원 | trawl fishing gear |
| CN101990864B (en) * | 2009-08-24 | 2012-05-30 | 中国水产科学研究院东海水产研究所 | Self-submergence frame type sampling method of marine juvenile fish by sampling net |
| CN103053481A (en) * | 2013-01-11 | 2013-04-24 | 国家海洋局北海环境监测中心 | Quantitative sampling netting gear for large jellyfishes in oceanic surface layers |
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| CN104542510A (en) | 2015-04-29 |
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