CN101385449B - Fishing method of young tunny - Google Patents
Fishing method of young tunny Download PDFInfo
- Publication number
- CN101385449B CN101385449B CN2008101989970A CN200810198997A CN101385449B CN 101385449 B CN101385449 B CN 101385449B CN 2008101989970 A CN2008101989970 A CN 2008101989970A CN 200810198997 A CN200810198997 A CN 200810198997A CN 101385449 B CN101385449 B CN 101385449B
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- tuna
- tunny
- catching
- fishhook
- osculum
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Abstract
The invention discloses a method for fishing tunny fries; white lines are wound into a shuttle-shaped clew as the false bait which is hung on the fishhook and the fishhook is cast into water; the boat speed for fishing tunny is controlled within 3 to 4 miles per hour and the shuttle-shaped clew is dragged in the water as the false bait to attract tunny; the rate of biting the bait for tunny is lower or no tunny bites the bait with a lower boat speed and the tunny is easy to be hurt with a higher boat speed; the fished tunny fries can be cultured in a live well. The method is characterized by stable technology, simple equipment, convenient operation and easy learning, and the tunny caught by the method are not hurt and have high survival rate.
Description
Technical field
The present invention relates to the method for catching that angles of a kind of fry, relate in particular to a kind of method for catching that angles of tuna seedling.
Background technology
The tuna class refers generally to tuna and belongs to (Thunnus) fish, and at global majority state, and 7 kinds of fish that European and American countries especially, tuna class make a general reference then that tuna belongs to and oceanic bonito belong to (katsuwonus) and wait other 58 kinds of fish that belong to.The tuna class is the oceanic fishes of height migration, be distributed widely in the Pacific Ocean, the Atlantic Ocean, temperate zone, the Indian Ocean and tropical marine site, but the catch of global tuna class is mainly from the Pacific Ocean.Have blue or green dried tuna, big order tuna, yellowfin tuna and longfinned tunny to distribute at China South Sea, the catching method that China fisherman is traditional has purse seine, longline fishing and bar to angle, but which kind of method that don't work, and is all dead within 5 fens kinds after tuna is fished for.The present invention has invented a kind of tuna work and has caught technology according to the biological property of tuna, makes the tuna after catching can survive for a long time and can be used for to culture, for numerous breed research of carrying out tuna from now on lays the foundation.
Summary of the invention
The object of the present invention is to provide a kind of tuna seedling simple and convenient, that survival rate is high to angle method for catching.
The objective of the invention is to realize by following technical measures: a kind of tuna seedling angle method for catching, it is characterized in that, being wound in a fusiformis ball of string with white wire is hung on the fishhook as false bait, fishhook is thrown in the water, angle the tunny boat speed control built in 3～4 nautical miles/hour, a fusiformis ball of string drags in water as the false bait of white can trap tuna; It is low or do not rise to the bait to be lower than this ship's speed tuna catch rate, is higher than this ship's speed tuna of then rising to the bait and pulls easily; Support in live well temporarily angling the tuna seedling of catching.
Long 8～10 centimetres of a described fusiformis ball of string.Move about in water just as small fish through dragging false bait, attract the tuna predation, rise to the bait, this false bait can repeat repeatedly to use to the trappability height of tuna seedling.
Described fishhook should be selected the fishhook of suitable size according to the specification of fry, cuts off the hangnail on the fishhook, with 0
#Emery cloth is level and smooth with fishhook polishing, make fishhook smooth, do not have hangnail, can not cause the tuna of rising to the bait injured.
The described ship's speed of fishing ship of angling preferably is controlled at 3 nautical miles/hour.
Live well bottom is provided with osculum, and the described wedge-like pipe that advances installation activity on the osculum is realized into draining conversion by the direction that changes the mouth of pipe.When the wedge-like pipe mouth of pipe (shipmate advancing in the same way) forward that is installed on the osculum into, when fishing boat advanced, the relative fishing boat of seawater flowed backward, bumps against wedge-like pipe mouth of pipe inwall, changed the direction of a stream of water, and formed the impulse force that rises; The size of rising impulse force, depend on ship's speed, therefore the height of ship's speed directly influences flow and water level that seawater flows into cabin, and seawater is pressed into cabin, water level is apparently higher than the sea in the cabin, seawater is compressed into from advancing osculum, overflows from the cabin mouth, forms strong water exchange, realize that flowing water supports tuna temporarily, and flowing water to be tuna angle can be after catching in the key of cabin survival.When the wedge-like mouth of pipe of pipe backwards, when fishing boat advances, form a space below the wedge-like mouth of pipe, seawater is forced out cabin under the effect of gravity, cabin is empty cabin.
The described diameter that advances osculum is 2.54～3.81 centimetres (1～1.5 inches), and the number of advancing osculum that is provided with in the live well bottom is 4～6.
Tuna provided by the invention angle method for catching, possess skills stable, equipment is simple, the characteristics of easy to operate, understandable easy, and the tuna that captures with the method is not injured and survival rate is high.
Description of drawings
Fig. 1 be at the bottom of the live well structure and in the full cabin of flowing water view;
Fig. 2 is structure and the empty-cabin state schematic diagram thereof at the bottom of the live well.
Embodiment
Below in conjunction with instantiation the present invention is set forth, and protection scope of the present invention is not only to be confined to following examples.The those of ordinary skill of described technical field all can be realized purpose of the present invention according to content disclosed by the invention.
The tuna that the inventor carried out in coastal waters, east, Hainan Province from 2006 to 2007 angles catches test.
Used angle that to catch ship be 36 horsepowers ferry glass reinforced plastic boat, 8.8 meters of captains, 2.1 meters of the beam, running water fish hold 1 long 1.85 meters, wide by 1.05, dark 0.68 meter, 1.32 meters of volumes
3Long 3.8 meters of fishing rod angles rope diameter 0.8mm, long 80 meters, does not hold bifurcated that three fishhooks are set.The bilge 2 be provided with diameter be 2.54 centimetres (1 inches) advance 4 of osculums, advance all to be equipped with on the osculum 3 movable wedge-like pvc pipes as intake-discharge pipe 4 at 4.Ship advances with 3 nautical miles/hour speed, and work as 4 wedge-like mouths of pipe forward this moment, and seawater is pressed in the running water fish hold 1, and after 50 minutes, water level is to on-deck in the cabin, and seawater begins to overflow from the cabin mouth, forms strong water exchange, and rate of water exchange is 1.58 meters in the cabin
3/ hour, it is maximum in 6 hours that to support density temporarily be 7.5kg/m
3, survival rate 100% realizes the foster temporarily tuna of flowing water.When the mouth of pipe of intake-discharge pipe 4 backwards, when fishing boat advanced, seawater was forced out the running water fish hold, this moment, the running water fish hold was empty cabin.
Select suitable big or small fishhook according to the specification of fry, cut off the hangnail on the fishhook, with 0
#Emery cloth is level and smooth with the fishhook polishing.A fusiformis ball of string that twines 8 centimeter length of growing up with white sewing thread hangs over false bait on the fishhook as false bait, and fishhook is thrown in the water.Angle the tunny boat speed control at the uniform velocity to advance built in 3 nautical miles/hour speed, carry out trolling, tuna one is risen to the bait, operation ship slow down to regain angle rope will with drag to on-deck, forefinger with thumb clamps fishhook, is the center of circle with the wrist, and standardized camber line makes progress, fish is broken off relations naturally and falls in the cabin, and operation ship returns to 3 nautical miles/hour speed and travels.Support in live well temporarily angling the tuna seedling of catching.
Use above-mentioned tuna to angle method for catching, catch tuna seedling 1700 tails that specification is 548～1137g altogether in experimental stage, cabin is supported survival 1275 tails, survival rate 75% temporarily.
Claims (5)
1. a tuna seedling angles method for catching, it is characterized in that: be wound in a fusiformis ball of string with white wire and be hung on the fishhook as false bait, fishhook is thrown in the water, angles the tunny boat speed control built in 3～4 nautical miles/hour, a fusiformis ball of string drags the trapping tuna as the false bait of white in water; Support temporarily in live well angling the tuna seedling of catching; Live well bottom is provided with osculum, and the described contract shape pipe that advances installation activity on the osculum is realized into draining conversion by the direction that changes the mouth of pipe.
2. tuna seedling according to claim 1 angles method for catching, it is characterized in that: long 8～10 centimetres of a described fusiformis ball of string.
3. tuna seedling according to claim 1 angles method for catching, it is characterized in that: the described ship's speed of fishing ship of angling is controlled at 3 nautical miles/hour.
4. tuna seedling according to claim 1 angles method for catching, it is characterized in that: the described diameter that advances osculum is 2.54～3.81 centimetres.
5. tuna seedling according to claim 1 angles method for catching, it is characterized in that: the number of advancing osculum that described live well bottom is provided with is 4～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101989970A CN101385449B (en) | 2008-10-07 | 2008-10-07 | Fishing method of young tunny |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101989970A CN101385449B (en) | 2008-10-07 | 2008-10-07 | Fishing method of young tunny |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101385449A CN101385449A (en) | 2009-03-18 |
| CN101385449B true CN101385449B (en) | 2011-04-06 |
Family
ID=40475288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101989970A Expired - Fee Related CN101385449B (en) | 2008-10-07 | 2008-10-07 | Fishing method of young tunny |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101385449B (en) |
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2008
- 2008-10-07 CN CN2008101989970A patent/CN101385449B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101385449A (en) | 2009-03-18 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20111007 |