CN101444193B

CN101444193B - Method for breeding sea cucumber in bathyal half-hanging buoyant raft net cage

Info

Publication number: CN101444193B
Application number: CN2008101815220A
Authority: CN
Inventors: 敖志辉
Original assignee: 敖志辉
Current assignee: Dalian long dragon aquatic products technology promotion Co., Ltd.
Priority date: 2008-10-28
Filing date: 2008-11-20
Publication date: 2012-07-25
Anticipated expiration: 2028-11-20
Also published as: CN101444193A; CN201663859U; CN201938196U

Abstract

The invention relates to a method for breeding sea cucumber in a bathyal half-hanging buoyant raft net cage and the method relates to agriculture-seawater buoyant raft net cage breeding. Seashell seawater buoyant raft net cage breeding with high density in large scale for a long causes environmental deterioration of the breeding sea area, the reduction of nutriment, unsmooth water flow, frequent occurrence of disease and insect pest and the like, so that not only the bred seashell quality is reduced, but the paroxysmal death in large scale also increases the breeding cost and increases the risk of seashell breeding. The invention adopts a novel sea cucumber breeding method that the existing breeding apparatus for the seashell breeding such as a buoyant raft, a net cage and the like are adjusted and changed slightly for use, and the bathyal half-hanging buoyant raft net cage is used for breeding the sea cucumber in the sea area under qualified conditions. Organism and bacteria such as plenty of shells and the like deposited at the seabed of the seashell breeding sea area are all the main bait of the sea cucumber. After one period of 2 to 3 years of the sea cucumber breeding, the ocean ecological environment is improved, the nutriment required by the seashell is recovered, and partial of station rafts are changed to breed the seashell again. The invention can realize that the sea cucumber and the seashell are bred synchronously in proportion.

Description

A kind of method of breeding sea cucumber in bathyal half-hanging buoyant raft net cage

Technical field

The present invention relates to agriculture seawater buoyancy raft net cage culture, is that the buoyant raft that utilizes existing cultivated shellfish, cylinder mould etc. are cultured utensil, changes through less adjustment and cultures sea cucumber.

Technical background

China marine site is vast, and the mariculture development is swift and violent, and cultured output occupies first of the world, and wherein shellfish culture accounts for more than 75% of gross yield.The shellfish culture of long-term large scale and high density has partly been cultured the marine site in Liaoning etc. and has been caused that seawater nutrient descends, current are smooth, damage by disease and insect takes place frequently, quality shellfish low with large-area sudden death, the marine shellfish aquaculture cost is improved, risk increases.The shellfish culture base Liaoning Province Changhai County maximum with China is example, and 1-6 month seawater aquaculture output had fallen 33.8% on a year-on-year basis in 2008.

Summary of the invention

How to evade the shellfish culture risk, the adjustment breed variety of suiting measures to local conditions, it is scientific and reasonable that to utilize marine resources to become inferior position be one of new problem of facing of mariculture industry into advantage.The present invention provides a kind of method of breeding sea cucumber in bathyal half-hanging buoyant raft net cage, is that the buoyant raft that utilizes cultivated shellfish, cylinder mould etc. are cultured utensil, changes through less adjustment, adopts half seabed, half suspension type cylinder mould to culture sea cucumber in marine site with good conditionsi.This cultural method meets the habit of growth of sea cucumber, and sea-bottom deposit organic matters such as a large amount of shells and bacterium all is the main bait of sea cucumber in the marine site of original cultivated shellfish.

The technical scheme that technical solution problem of the present invention is adopted is: the raft body of adjustment buoyant raft and buoyancy rope and lifting rope length; Make it can be in the time of low water, the length that the buoyancy rope adds lifting rope be greater than the distance of sea to the seabed, and the assurance cylinder mould can sink to the seabed fully; When full sea, cylinder mould can break away from the seabed fully.

The invention has the beneficial effects as follows: make rational use of resources, the improvement marine eco-environment promotes the mariculture ecological balance, reduces aquaculture cost and risk, improves the culturing economic benefit.

Description of drawings

Fig. 1 is when different tidal level, the residing location status sketch map of cylinder mould, and (1) is that buoyant spheres, (2) they are that buoyancy rope, (3) they are that raft body, (4) they are that lifting rope, (5) they are that cylinder mould, (6) they are that sandbag, (7) they are rod (bamboo poles).A, B, C represent the position on full sea, half tide, time of low water sea respectively, and D representes the position in seabed.

Fig. 1-1 representes the time of low water, and cylinder mould sinks to the state in seabed fully.

When Fig. 1-2 represented half tide, cylinder mould partly sank to the state in seabed.

During Fig. 1-3 expression full sea, cylinder mould breaks away from the state in seabed fully.

Fig. 2 is the left view of Fig. 1-3.

Fig. 3 is improved cylinder mould dividing plate, is on original cylinder mould dividing plate, to process two big holes.

Embodiment

Adjust raft body and the buoyancy rope and lifting rope length of buoyant raft by above-mentioned Fig. 1, make it can be in the time of low water, the length that the buoyancy rope adds lifting rope be greater than the distance of sea to the seabed, and the assurance cylinder mould can sink to the seabed fully, and when full sea, cylinder mould can break away from seabed (like Fig. 1-3) fully.

Buoyancy rope is relevant with the quality in seabed with the concrete length of lifting rope, and buoyancy rope and lifting rope are lacked at the bottom of the silt, prevent that cylinder mould from being sticked by silt.Otherwise husky mud spacer screen cage is difficult for being fallen into, and can suitably increase the length of buoyancy rope and lifting rope, let cylinder mould in the seabed time of staying long.

Cylinder mould is stretching, again two rods (bamboo pole) are fixed together with cotton rope and cylinder mould, make cylinder mould keep propping up state.

The cylinder mould dividing plate of original shellfish culture is formed 1.5～2 times of diameter by sea cucumber make a call to two circular holes, also can order the cylinder mould that satisfies above-mentioned condition separately.Two circular holes be for make sea cucumber can be in cylinder mould easy on and off current, ingesting etc. to sea cucumber provides more convenience.

The cylinder mould bottom is hung sandbag (6), prevent that impacting lower net cage in trend too drifts about.

According to the distance between the individual size adjustment cylinder mould dividing plate of culturing sea cucumber, select the suitable net sheet of mesh.

Confirm cultivation density according to the sea area natural environment, to the seabed have enrich food resource cultivation density more greatly, otherwise then littler.General sea area through long-term shellfish culture, the seabed food resource is rich all, and each raft is hung 60-80 cylinder mould.

Selecting not bait throwing in is children's ginseng that breed in the middle of condition, marine, about the long 3cm of body, and every cage 40-60 head (15 layers of dividing plate) does not have bait throwing in cultures, and adjustment buoyancy is restricted in good time in breeding process, can promote that sea cucumber grows fast.Culturing the sea area with the smooth shellfish of shrimp is example; The general depth of water is all more than 10 meters, and there is a fixed difference difference in Various Seasonal sea and seabed, and the summer high-temperature phase lets cylinder mould stop in the seabed as far as possible; Spring and early summer marine organisms active, water temperature suitable; Can cylinder mould be improved, that has a mind to lets various marine organisms such as mussel attached on the cylinder mould, replenishes more how natural organic nutrient substance to sea cucumber.

If select seedling under autumn end; Can hang on the buoyant raft at the opening cylinder mould sky that prop up rod summer; Let and overwork attachment inside and outside the cylinder mould, to the certain natural organic bait of sea cucumber deposit, but in the cylinder mould during dress seedling; To harmful animal things such as the fish in the cylinder mould, crab, starfish be removed, behind the sea cucumber seedling of packing into cylinder mould sewed up with cotton rope.This cylinder mould is cultured the invasion that the sea cucumber method can also effectively prevent sea cucumber harmful animals such as fish, crab and starfish.

Sea cucumber is an omnivore; In marine site with good conditionsi, can hang oneself at the lifting rope at cylinder mould top and support some green plantss, like sea-tangle, undaria pinnitafida etc. (specifically can with reference to the cultural method of sea-tangle and undaria pinnitafida); Select suitable opportunity; Connect rope (band root) and be transplanted on one's body the raft at cylinder mould top growing into sea-tangle or undaria pinnitafida more than 1 meter, and let the blade in the growth can contact as much as possible, make sea cucumber that the chance of feed also arranged under the cylinder mould suspended state near arriving cylinder mould.

Holothruian cultures through one-period (2-3) improve the marine eco-environment, and the nutriment that shellfish needs is restored; Again a part of platform raft is changed and support shellfish; Be implemented in the certain sea area inland sea and participate in shellfish with supporting, like this can be under the prerequisite of marine ecology balance, promote that two kinds of material cultures can both healthy nuisanceless growth; Reach resource and rationally utilize, to promote the sustainable development of seawater buoyancy raft net cage culture with the breed utensil.

The growth cycle of holothruian cultures and shellfish culture is similar, but the economic worth of sea cucumber is much larger than shellfish, and preventing and kill off of stained thing will consume lot of manpower and material resources on the shellfish culture cylinder mould, sea cucumber then antithesis, stained thing is the fabulous natural bait of sea cucumber.

Claims

1. the method for a breeding sea cucumber in bathyal half-hanging buoyant raft net cage; Be to be the basis with buoyant raft, the cylinder mould that has shellfish culture now; Change through less adjustment, it is stretching to be about to cylinder mould, two rods or bamboo pole is fixed together with cotton rope and cylinder mould again; Make cylinder mould keep propping up state, the 1.5-2 that on the cylinder mould dividing plate, forms diameter by sea cucumber doubly makes a call to two circular holes; Adopt the method for half seabed, half suspension type buoyancy raft net cage culture to culture sea cucumber in the marine site of original cultivated shellfish; It is characterized in that: the length of the raft body of adjustment buoyant raft and buoyancy rope and lifting rope; Make it can be in the time of low water; The length that the buoyancy rope adds lifting rope guarantees that greater than the distance of sea to the seabed cylinder mould can sink to the seabed fully, and cylinder mould can break away from the seabed fully when full sea.