CN101766136A

CN101766136A - Star-like radial allocation method for artificial reefs

Info

Publication number: CN101766136A
Application number: CN200910249031A
Authority: CN
Inventors: 陈勇; 田涛; 刘海映; 张国胜; 王刚; 刘永虎; 史航
Original assignee: Dalian Fisheries University
Current assignee: Dalian Fisheries University
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-07-07
Anticipated expiration: 2029-12-30
Also published as: CN101766136B

Abstract

The invention discloses a star-like radial allocation method for artificial reefs, which is characterized in that a cubic reef form with the side length of 1 to 2 meters is used as a main reef, 3 to 8 auxiliary reefs with the height of 80 to 120 centimeters are uniformly distributed on the circumference which uses the main reef as the central point, the main reef and each auxiliary reef are connected through a stone connection bridge with the length of 3 to 6 meters, and the categories of the adjacent auxiliary reefs are diverse. The artificial reefs are closer to the reality and are favorable for the balance of the ecological system, and the stone connection bridge serving as a radiation belt provides a bridge for the movement of rare seafood among the reefs and plays a role in sheltering. Through on-site sea area tests, the rare seafood such as sea cucumber, sea hedgehog, abalone and the like can rest in gaps among the main reef, the auxiliary reefs and the stone connection bridges or on the surfaces; the good growth condition of algae on the reefs provides baits for the rare seafood, so the proliferation effect of the rare seafood is obvious; and reef-associated fishes such as hexagrammos otakii, sebastes schlegeli and the like rest in the main reef and the auxiliary reefs, so the whole reef group structure is stable and forms a good small ecosystem.

Description

The star-like radial allocation method of artificial fish shelter

Technical field:

The present invention relates to a kind of collocation method of artificial fish shelter, especially a kind ofly be beneficial to precious marine product (sea cucumber, sea urchin, abalone) and the cay fish perch, grow, the star-like radial allocation method of the artificial fish shelter that cultivation effect is good.

Background technology:

Continuous development along with precious marine product fishery such as sea urchin, sea cucumber, abalones, its natural resources amount obviously descends, people adopt following dual mode for this reason, recover its resource in the hope of propagation: the one, develop on a large scale and propagate artificially, but because of the quality deterioration of propagating artificially, the disease that high-density breeding causes takes place frequently, and problems such as the serious and food security of self-pollution have all restricted the development of propagating artificially.The 2nd, artificial fecundation is released.Manually rising in value releases is to perch the field of living of growth by the suitable marine organisms of method construction of throwing in artificial fish shelter in natural marine site, manually living provides feeding ground, sanctuary and can enlarge the food source of precious marine product by the propagation natural seaweed for precious marine product, value-added precious marine product quality is higher and the effect of fish gathering arranged, simultaneously can also increase marine resources, repairing environment, thus artificial fecundation to release be a kind of more excellent selection.

Existing artificial fish shelter kind is more, concrete reef, work stone reef, steel fish shelter, wooden bamboo fish shelter and engineering plastics fish shelter etc. are arranged, the fish shelter type of throwing in a slice fish shelter district is same structure at present, put shape in a row according to a determining deviation between single reefs, according to a determining deviation laid parallel, promptly form latticed laying fish shelter group and fish shelter band between every then row.Because institute's fish shelter type of throwing in is single, and the variety classes marine product is to breeding the fancy grade difference of reef type, and its cultivation effect will be under some influence; Owing to adopt latticed laying usually, lack contact between the single reefs in addition, isolated relatively, be unfavorable for the activity of marine product between reef, limited its growing space relatively.

Summary of the invention:

The present invention is in order to solve the above-mentioned technical problem of existing in prior technology, provides a kind of and is beneficial to precious marine product (sea cucumber, sea urchin, abalone) and the cay fish perch, grow, the star-like radial allocation method of the artificial fish shelter that cultivation effect is good.

Technical solution of the present invention is: a kind of star-like radial allocation method of artificial fish shelter, it is characterized in that: with the length of side is that 1～2 meter cube reef type is main reef, be that to be evenly equipped with 3～8 height on the circumference of central point be 80～120 centimetres auxilliary reef at Yi Zhujiao, be that 3～6 meters work stone connects bridging and connects by length between main reef and each the auxilliary reef, the kind of adjacent auxilliary reef is different.

It is to be that 20～50 centimetres work stone piece piles by particle diameter that described work stone connects bridge.

The invention has the beneficial effects as follows and more approach reality, help balance of ecosystem, connect bridge as the work stone of radiation zone and be the mobile effect that bridge be provided and play protection of precious marine product between reefs.Through the test of on-the-spot sea area, precious marine products such as sea cucumber, sea urchin, abalone can connect in the slit between bridge or the surface is perched at main reef, auxilliary reef and work stone, algal grown is all right on the reef provides bait for precious marine product, the precious marine product cultivation effect is obvious, cay fish such as greenling, the flat Rockfish of Xu Shi also perch in main reef and auxilliary reef, whole reef group structure is stable, has formed good little ecosystem.

Description of drawings:

Fig. 1 is the schematic diagram of the embodiment of the invention.

Fig. 2 is the on-the-spot reef group reference configuration figure of the embodiment of the invention.

Embodiment:

Below in conjunction with description of drawings the specific embodiment of the present invention, as shown in Figure 1: main reef 1 is 1～2 meter cube reef type for the length of side, it can be the concrete-type reef, auxilliary reef 2 is various reef types of the prior art such as more small-sized concrete reef, work stone reef, 80～120 centimetres of height, quantity is 3～8, and adjacent auxilliary reef 2 kind differences can be selected 2～8 kinds as required.Connect bridge 3 by work stone between main reef 1 and the auxilliary reef 2 and connect, it is 3～6 meters for diameter in work stone heap, the length that 20～50 centimetres work stone piece piles that work stone connects bridge 3.

During on-the-spot the input, can adopt GPS to establish accurately to locate as shown in Figure 2 throws in, (being as the criterion with excircle) arranges with 10～20 meters intervals between the formed unit of the embodiment of the invention fish shelter 4, each reef group comprises at least 40 unit fish shelters 4, and the concrete quantity of unit fish shelter 4 is adjusted according to drafting reef district size.The concrete laying when throwing in can connect float, so that investigation in the future and management at reef group edge.

Find by the field trial of carrying out in marine site, river deer island, Dalian, the artificial fish shelter breeding blanket that utilizes this kind distribution method to build, the stock number of precious marine products such as the sea cucumber of fish shelter district internal breeding, sea urchin, Bao is increased dramatically, under same environmental conditions, with respect to existing cloth reef method, the precious marine product proliferative amount can improve more than 20%.

Claims

1. the star-like radial allocation method of an artificial fish shelter, it is characterized in that: with the length of side is that 1～2 meter cube reef type is main reef (1), is 80～120 centimetres auxilliary reef (2) at Yi Zhujiao (1) for being evenly equipped with 3～8 height on the circumference of central point, be that 3～6 meters work stone connects bridge (3) and is connected by length between main reef (1) and each auxilliary reef (2), the kind of adjacent auxilliary reef (2) is different.

2. the star-like radial allocation method of artificial fish shelter according to claim 1 is characterized in that: it is to be that 20～50 centimetres work stone piece piles by particle diameter that described work stone connects bridge (3).