Stichopus japonicas pond subsection type polyculture method capable of avoiding macroalga inundation

A pond and algae technology, which is applied to the field of multi-culture in sea cucumber ponds, can solve the problems such as pond culture of sea urchins that have not yet been carried out, and achieve the effects of avoiding the flooding of large algae, increasing economic benefits and reducing losses.

Active Publication Date: 2016-04-20
DALIAN OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sea urchin medius is a low-temperature species, it is not suitable for the water quality conditions of high water temperature in seawater aquaculture ponds in summer, so the pond culture of the sea urchin medius has not yet been carried out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a. Seed delivery

[0022] a.1 When the water temperature is 10°C~12°C every year, put sea cucumber seedlings in the sea cucumber ponds, the size of the seedlings should be at least 500~1000 heads / 500g, and the stocking density should be 100~120kg;

[0023] a.2 Every spring and when the pond water temperature is at least 14°C, put the basket fish fry in the sea cucumber pond, the size of the basket fish fry is at least 3cm, and the number of fish is 1500~2000 / hm 2 ;

[0024] a.3 Every autumn and when the water temperature is below 18°C, put the sea urchin seedlings in the sea cucumber pond, the size of the sea urchin seedlings is at least 3.5cm, and the quantity of putting in is 500 pieces / mu;

[0025] b. Breeding

[0026] Bait: After adding japonicus seedlings, there is no need to add bait, as the sea cucumbers can absorb edible food in the seawater in the pond; after adding basket fish fry and middle ball sea urchin fry, it is necessary to monitor the number of macro...

Embodiment 2

[0038] a. Seed delivery

[0039] a.1 Every year when the water temperature is 15°C~16°C, put sea cucumber seedlings into the sea cucumber ponds, the seedling size should be at least 300~500 heads / 500g, and the stocking density should be 180kg / hm 2 ;

[0040] a.2 Every spring and when the pond water temperature is at least 14°C, put basket fish fry in sea cucumber ponds, the size of the basket fish fry is at least 3cm, and the number of fish put in is 2000~3000 / hm 2 ;

[0041] a.3 Every autumn and when the water temperature is below 18°C, put the sea urchin seedlings in the sea cucumber pond, the size of the sea urchin seedlings is at least 3.5cm, and the quantity of putting in is 700 pieces / mu;

[0042] Breeding and capture are the same as in Example 1.

Embodiment 3

[0049] a. Seed delivery

[0050] a.1 When the temperature is 15°C~16°C every year, put sea cucumber seedlings into the sea cucumber ponds, the seedling size should be at least 100~300 heads / 500g, and the stocking density should be 250kg / hm 2 ;

[0051] a.2 Every spring and when the pond water temperature is at least 14°C, put the basket fish fry in the sea cucumber pond, the size of the basket fish fry is at least 3cm, and the number of fish is 3000~3500 / hm 2 ;

[0052] a.3 Every autumn and when the water temperature is below 18°C, put the sea urchin seedlings in the sea cucumber pond, the size of the sea urchin seedlings is at least 3.5cm, and the quantity of putting in is 1000 pieces / mu;

[0053] Breeding and capture are the same as in Example 1.

[0054] The contrast is the cultivation and harvesting of sea cucumbers carried out separately by the conventional sea cucumber culture method, and the annual harvest comparison results of embodiment 3 and the contrast culture met...

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PUM

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Abstract

The invention discloses a stichopus japonicas pond subsection type polyculture method capable of avoiding macroalga inundation. The method comprises the following steps that young stichopus japonicas is put into a stichopus japonicas pond in a conventional mode every year; when the water temperature of the pond is at least 14 DEG C in spring every year, rabbitfish fry are put into the stichopus japonicas pond; when the water temperature is below 18 DEG C in autumn every year, young strongylocentrotus intermedius is put into the stichopus japonicas pond; the quantity of macroalga in the stichopus japonicas pond needs to be monitored in the culture process, and when the quantity of the macroalga is smaller than the feeding quantity of strongylocentrotus intermedius and rabbitfishes, macroalgae are fed; mature stichopus japonicas is fished and caught in spring and autumn every year; the rabbitfishes are fished and caught in autumn every year; before the water temperature rises to 23 DEG C in spring every year, the strongylocentrotus intermedius is fished and caught, and the strongylocentrotus intermedius of the specification smaller than the commercial specification is transferred to a sea area to continue to be subjected to raft culture.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a segmented polyculture method for sea cucumber ponds which can effectively prevent macroalgae flooding in sea cucumber cultivation ponds and improve the economic benefits of sea cucumber cultivation ponds. Background technique [0002] Sea cucumber, belonging to the sea cucumber class ( Holothurioidea ), is a sea treasure with high economic value, and has become one of the important species of mariculture in my country. The existing breeding method is to select seawater aquaculture ponds with sandy bottom, sandy mud bottom or silt bottom. Every spring or autumn, when the water temperature is between 10°C and 20°C, the sea cucumber seedlings are put in, and then by monitoring the water temperature, Technical indicators such as salinity, dissolved oxygen, and pH, and timely feeding of sea cucumber baits such as Unicellular algae, until mature sea cucumbers are harvested in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81Y02A40/80
Inventor 宋坚常亚青张伟杰赵冲刘明泰岑全振付壤辉
Owner DALIAN OCEAN UNIV
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