CN104938369A

CN104938369A - Ecological raising method for sea cucumber seedlings by using net cage under the sea

Info

Publication number: CN104938369A
Application number: CN201410121227.1A
Authority: CN
Inventors: 敖志辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2015-09-30

Abstract

The invention provides an ecological temporary raising method for sea cucumber seedlings by using a net cage under the sea. A net cage frame is composed of an annular net cage support plate and rod-shaped bodies such as bamboo rods or sealed plastic pipes, the outer ring of the net cage frame is sewed with cylindrical netting, and the net cage frame with two open ends is formed. A base curtain is hung in a frame-type net cage inner chamber, two ends of the frame-type net cage are tightened by using connecting ropes and are connected with a raft body, a sandbag is arranged on the raft body, and a sea cucumber seedling temporary raising device under the sea is formed. By means of the device, impact force of tides on the frame-type net cage can be effectively used, horizontal reciprocating motions in two directions under the sea can be achieved every day, due to a certain buoyancy force of the rod-shaped bodies such as the bamboo rods or the sealed plastic pipes in the sea, a certain distance between the frame-type net cage and the seafloor can be basically maintained in the temporary raising process, the net cage can be effectively prevented from being caught in silt, and the netting is prevented from being broken due to friction of undersea silt. The ecological temporary raising method for the sea cucumber seedlings by using the net cage under the sea has the advantages that the cost of the net cage is lowered, and the tides and the space of the net cage can be used reasonably.

Description

A kind of cylinder mould is ecological method of supporting sea cucumber seedlings temporarily in seabed

Technical field

The present invention relates to fishery holothruian cultures, is utilize the raft body of buoyant raft and cylinder mould in bottom culture sea cucumber seedlings.

Technical background

The new technology of the marine sea cucumber ecology nursery of current a kind of net cage is surging forward in Changhai County, Liaoning Province, cylinder mould ecological new technology of supporting sea cucumber seedlings temporarily in seabed is also arisen at the historic moment, and its know-why is the natural law utilizing trend to change the direction of motion and size twice daily.Trend impacts cylinder mould makes it realize the reciprocating motion of two horizontal directions every day in seabed, the large-area acquisition of sea cucumber seedlings can be made to be deposited on stained things such as the various halobiontic corpse in seabed is brokenly cut, the excreta of shell fragment and cultivated shellfish, these stained things are all the nutriments required for sea cucumber.The reciprocating motion of cylinder mould can prevent it from being sticked by silt.

But in silt seabed or husky mud seabed not through transformation, connects with cylinder mould in the industrialized development process of raft body foster sea cucumber seedlings temporarily that there are the following problems.

1, wire mesh cage structures is unreasonable.All the cylinder mould adopting cultivated shellfish at present at bottom culture sea cucumber cylinder mould, this cylinder mould designs by hanging culture, net cage separator is not only disc is etting supporter but also be cultivated shellfish weight body, in order to cultivate more shellfish in unit of water body, distance between dividing plate is very little, generally in 120 millimeter.And cylinder mould lies in a horizontal plane in seabed in the process of bottom culture sea cucumber, net cage separator not load-bearing only works to support etting does not need so intensive dividing plate.Sea cucumber needs the adherance of software in cylinder mould, is all generally to utilize the mesh bag that uses in net cage seedling nursery process and mesh sheet to make adherance, directly the mesh bag and mesh sheet that are attached with sea cucumber seedlings is taken out from net cage and is put in cylinder mould.Adherance is always deposited in the bottom of cylinder mould circular arc, has the space of more than 2/3rds not to be utilized effectively above adherance.Because net cage separator is disc, do not communicate between dividing plate with dividing plate, adherance cannot be worn bunchiness as net cage seedling nursery and hang in the seawater.

2, in seabed, the long-time and barrier such as silt, shell friction is easy to breakage to cylinder mould, causes sea cucumber escape.

3, the connected mode of cylinder mould and raft body is unreasonable.One end of cylinder mould is connected with raft body, and cause cylinder mould axially along direction of tide, effective lifting surface area that cylinder mould itself accepts trend impulsive force is less, and especially in the time period that dead flood season, trend diminished, cylinder mould is difficult to the reciprocating motion realizing making horizontal direction in seabed.The scope causing sea cucumber seedlings to obtain nutriment on the one hand reduces, and cylinder mould is easy to be sticked by silt on the other hand.

Summary of the invention

In order to overcome above-mentioned three subject matters, the invention provides the connected mode that a kind of cylinder mould of new structure and a kind of cylinder mould and raft body are new, the adherance in cylinder mould can be made to make full use of cylinder mould space, the etting avoiding cylinder mould and seabed silt to rub causing is damaged, and the impulsive force making full use of trend prevents it from being sticked by seabed silt.

The present invention's adopted technical scheme of dealing with problems is: form netpen framework by annular cylinder mould gripper shoe and the shaft such as bamboo pole or plastic tube.The outer circumferential weld cylindrical shape etting of annular cylinder mould gripper shoe, composition frame-type cylinder mould.Cylinder mould inner chamber is tied and floats base curtain.Be connected with raft body at cylinder mould two ends, raft is equipped with the device that sandbag forms a kind of cylinder mould bottom culture sea cucumber with it.

The invention has the beneficial effects as follows: the production cost reducing cylinder mould makes full use of the solid space of cylinder mould, reduce or avoid cylinder mould and seabed silt to rub the breakage caused, the function making full use of trend effectively realizes cylinder mould makes horizontal direction reciprocating motion in seabed.

Accompanying drawing explanation

Fig. 1 is frame-type cylinder mould.

Fig. 2 is the partial enlarged drawing of Fig. 1 frame style basket structure.

Fig. 3 is annular cylinder mould gripper shoe.

Fig. 4 is the structure drawing of device of cylinder mould bottom culture sea cucumber seedlings.

Fig. 5 floats base curtain.

In figure, 1. is drum type brake ettings, is 2. the rhabodoids such as bamboo pole or plastic tube, is 3. annular cylinder mould gripper shoes, is 4. frame-type cylinder moulds, is 5. connection cords, is 6. seabeds, is 7. sandbags, is 8. raft bodies, is 9. mesh bag and mesh sheet, is 10. string ropes.

Embodiment

Annular cylinder mould gripper shoe is injection molded into injection molding machine of plastic is disposable, this annular cylinder mould gripper shoe has near outer shroud place and is multiplely uniformly distributed equal-sized circular hole for sewing up drum type brake etting, by multiple annular cylinder mould gripper shoe equidistantly together with drum type brake joining, the cylinder mould of a composition both ends open formula.

Have 3 circular holes evenly divided between annular cylinder mould gripper shoe inner and outer ring, circular has the equal equally distributed gap of multiple length, forms the actinomorphic cavity based on circular hole.During use, the rhabodoid such as bamboo pole or plastic tube of 3 diameters slightly larger than circular hole is passed successively from the circular hole multiple annular cylinder mould gripper shoe respectively, and by stretching for cylinder mould to most long status, the rhabodoid composition frame-type cylinder moulds such as the automatic banding bamboo pole of elasticity that the circular hole in each annular cylinder mould gripper shoe can utilize plastics itself to have or plastic tube.

Mesh bag and mesh sheet floated base curtain with two string ropes composition that wears up and down respectively, will float base curtain and load frame-type cylinder mould, then the annular cylinder mould gripper shoe of being restricted by two strings through frame-type cylinder mould two ends is fixed together with it in the circular hole of inner ring.Mesh bag and mesh sheet are preferably taken out from net cage, naturally sea cucumber seedlings is floated in mesh bag He in mesh sheet, the quantity of its sea cucumber seedlings is determined according to the Individual Size of ginseng seedling, support 7 months individualities temporarily for the sea cucumber seedlings of about 3000 per jin and reach 300 per jin, on average every cubic decimeter of water body 6-7 sea cucumber seedlings, presses on average every square decimeter of attachment sea cucumber seedlings and calculates the surface area of adherance.

Tighten up being equipped with the frame-type cylinder mould two ends connection cord floating base curtain and sea cucumber seedlings, and be connected with raft body, the length of its connection cord is advisable slightly larger than annular cylinder mould gripper shoe radius.Raft between each frame-type cylinder mould fixes sandbag with it, its weight 2-3 kilogram, lay down the buoyant spheres on buoyant raft, stay if desired a buoyant spheres as its buoyancy rope of mark length slightly larger than full towards time sea to the distance in seabed, raft body is together sunk to seabed together with frame-type cylinder mould.With dead man, the lifting of raft body can be carried out to ship limit when results or intermediate detection.

Raft can press close to seabed under sandbag Action of Gravity Field, and frame-type cylinder mould is owing to there being the rhabodoids such as three bamboo poles or sealed plastic pipe, can produce certain buoyancy, the sea cucumber seedlings temporarily weight of supporting when coming out of steamer for 7 months has just just reached the buoyancy of the rhabodoid generations such as three bamboo poles or sealed plastic pipe.Therefore substantially can maintain a certain distance with seabed temporarily supporting process center posture cylinder mould, even if press close to seabed also can not produce much pressure to seabed, therefore can effectively prevent the etting that causes with the barrier friction such as seabed silt or shell damaged.

To be equipped with inside frame-type cylinder mould and to float base curtain and take full advantage of cylinder mould space, and frame-type cylinder mould is axially perpendicular to effective lifting surface area that direction of tide increases frame-type cylinder mould entirety, can more efficientlyly utilize the impulsive force of trend to frame-type cylinder mould to realize its every day makes two horizontal directions reciprocating motion in seabed.More seabed organic matter can be made at the volley to be attached on the adherance in cylinder mould.Create condition for sea cucumber seedlings large-area acquisition seabed nutriment on the one hand, can effectively avoid cylinder mould to be sticked by silt on the other hand.

Sea-bottom deposit below shellfish culture buoyant raft for many years the stained things such as various halobiontic corpse is brokenly cut, the excreta of shell fragment, cultivated shellfish, these stained thing long-term pollution aquaculture sea area very easily cause the generation of various cultivation disaster, but these stained things are the nutriments required for sea cucumber.Therefore the bottom culture sea cucumber below shellfish culture buoyant raft is for many years selected as much as possible, sea cucumber can be impelled to grow fast on the one hand, the effect that benthon is prevented and kill off can also be played on the other hand, sea cucumber licks the food of own wt 1.4 times every day to have result of study to prove, calculates only sea cucumber seedlings support every platform raft (mu) temporarily and can filter or consume the stained thing in seabed 10 tons every year by this.

Claims

1. the method by cylinder mould ecological foster sea cucumber seedlings temporarily in seabed, it is characterized in that: form netpen framework by annular cylinder mould gripper shoe and the rhabodoid such as bamboo pole or sealed plastic pipe, annular cylinder mould gripper shoe outer shroud is sewed with cylindrical shape etting, the frame-type cylinder mould of composition both ends open formula, cylinder mould inner chamber is tied and floats base curtain, tightened up by cylinder mould two ends connection cord and link with raft body, raft is equipped with sandbag with it and forms the device that sea cucumber seedlings is supported in a kind of cylinder mould seabed temporarily.

2. the method for a kind of cylinder mould according to claim 1 ecological foster sea cucumber seedlings temporarily in seabed, it is characterized in that: annular cylinder mould gripper shoe has near outer shroud place and is multiplely uniformly distributed equal-sized circular hole for sewing up drum type brake etting, inner ring has circular hole to float base curtain for being tied, 3 circular holes evenly divided are had between annular cylinder mould gripper shoe inner and outer ring, circular has the equal equally distributed gap of multiple length, the actinomorphic cavity of composition based on circular hole, during use, the rhabodoid such as bamboo pole or sealed plastic pipe of 3 diameters slightly larger than circular hole is passed successively from the circular hole multiple annular cylinder mould gripper shoe respectively, and by stretching for cylinder mould to most long status, the rhabodoid composition frame-type cylinder moulds such as the automatic banding bamboo pole of elasticity that the circular hole in each annular cylinder mould gripper shoe can utilize plastics itself to have or sealed plastic pipe.

3. a kind of cylinder mould according to claim 1 in seabed ecological method of supporting sea cucumber seedlings temporarily, it is characterized in that: floating base curtain is mesh bag and mesh sheet are gone here and there ropes with two up and down respectively to wear composition.