Ecological breeding method for sea horses

A technology for ecological breeding and seahorses, applied in botany equipment and methods, fish farming, seaweed cultivation, etc., can solve the problems of low efficiency, low survival rate of artificially cultured seahorses, low stocking density, etc., and achieve low cost and broaden protection The way, the large effect of breeding individuals

Inactive Publication Date: 2009-12-02
NINGBO UNIV
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  • Application Information

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Problems solved by technology

Therefore, these all are the reasons that cause the low survival rate of the seahorses in artificial

Method used

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  • Ecological breeding method for sea horses
  • Ecological breeding method for sea horses
  • Ecological breeding method for sea horses

Examples

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Embodiment 1

[0031] This embodiment is the selection of macroalgae and its growth condition test.

[0032] According to experiments, Gracilaria lemaneiformis, Gracilaria chrysanthemum (G.lichevoides) and Gracilaria spp. (G.tenuistipitata v.liui Zhang et Xia) were treated under light intensity of 20~300μE·m-2·s- 1. There are growth phenomena in the range of temperature 5~24.5℃, 12~36℃, 8~32℃ and salinity 5~40‰. However, there are certain differences in the optimal growth and suitable growth factor range of each algae strain. When these factors are not suitable, the growth of algae will be restricted, resulting in the reduction of its water purification function. The range between the highest and lowest tolerable values ​​of these factors is the tolerance limit of the seaweed. The tolerance limit of different seaweeds is different. The suitable growth and optimum growth conditions and tolerance of several seaweeds tested As in Table 1.

[0033] Table 1 Comparison of suitable and optimal gr...

Embodiment 2

[0037] Determination of the effective density range of macroalgae to regulate water quality.

[0038] The growth of algae and the purification effect on water quality in different stocking densities of Gracilaria chrysanthemum and Asparagus were tested. Under the condition of nutrient enrichment, the growth rate of Gracilaria chrysanthemum with different stocking densities was different. In the first 5 days, the low density group (500g / m 3 ) is 8.32% / d, medium density group (1000g / m 3 ) is 5.36% / d, high density group (1500g / m 3 ) was 3.17% / d; with the increase of algae density in the system, the growth rate slowed down. On the 10th day, the growth rate of seaweed in the middle and high density groups was not significantly different (P>0.05), and on the 15th day, the growth rate of seaweed among the treatments was similar (P>0.05). At this time, the density of seaweed in each pond is also similar, which is 2000-2200g / m 3 between (see figure 1 ). After harvesting, the dens...

Embodiment 3

[0043] The cultivation of basic bait.

[0044] In the hippocampus breeding ponds, fermented chicken manure (i.e., add water to ferment the reserved chicken manure to make it mature, and apply it one week before stocking larvae hippocampus), the dosage is 30-50g / m 3 ; or cast urea, the dosage is 0.5 ~ 1g / m 3 . When the weather is fine, the color of the pool water gradually changes within 2 to 3 days. image 3 The concentration of chlorophyll a can reflect the increase of the abundance of phytoplankton; then the density of rotifers began to increase, and reached the highest peak on the 5th to 7th day, and then decreased slightly and tended to be relatively stable; the abundance of small crustaceans such as copepods in It began to increase gradually on the 5th day and was relatively stable after the 9th day.

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Abstract

The invention relates to an ecological breeding method for sea horses, which is characterized by comprising the following steps: putting sea water in which zygotes of fishes, shrimps and shellfishes are filtered into a cement pool, ensuring that the height of the sea water is 0.2 to 0.4 meter lower than that of the cement pool, and keeping the temperature of the sea water between 15 and 32 DEG C and the salinity of the sea water between 1 to 3 percent; putting kelps into the cement pool, and keeping the fresh weight density of the kelps in the cement pool between 0.5 and 2 kg/m; inoculating organic fertilizer to the cement pool to breed bioactive baits; putting the sea horses to the cement pool; and during breeding, keeping the density of the living biological baits in the cement pool. Compared with the prior art, by adopting the method for breeding the sea horses, little bait even no bait is fed, so the cost is low and the pollution is little; and the produced sea horses have high survival rate, large individual and good economic benefit; and the method can be used for supplementing the resources of coastal sea horses, and broadens the path of marine organism resource protection.

Description

technical field [0001] The invention relates to a seahorse breeding technology. Background technique [0002] Seahorse is an important small marine bony fish and a rare marine medicine source animal with extremely high economic value, known as "Southern Ginseng". At present, the global production of seahorses has declined significantly, and wild resources are on the verge of depletion. It is imminent to carry out the protection and multiplication of natural resources of hippocampus. Carrying out seahorse artificial breeding is a kind of effective, quick way that can not destroy marine resource again to solve above-mentioned situation. At present, there are many ways to cultivate seahorses artificially, such as cages, polyester fiber tanks, earthen ponds, cement ponds and household water cluster tanks, etc. The most widely used is cement pond cultivation. Because seahorses, especially seahorse seedlings, have relatively high requirements on water quality, water temperature...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01G33/00
CPCY02A40/80Y02A40/81
Inventor 徐永健韦玮陆惠贤卢光明
Owner NINGBO UNIV
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