Algae wind-wave resisting rope sinking type cultivation facility and method

A cultivation method and anti-wind and wave technology, applied in the field of algae cultivation, can solve problems such as loss of algae seedlings, and achieve the effects of efficient harvesting, improving stability and promoting algal growth.

Active Publication Date: 2010-03-03
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0003] In order to avoid the influence of surface wind waves and bad weather on the cultured algae, expand the culture area of ​​small and medium-sized algae, and improve the success rate of culture production, the present invention provides a kind of algae anti-storm and wave sinking type culture facility and method to solve the problem of wind and wave. The problem of serious loss of algae seedlings in raft cultivation in large sea areas, this method can completely avoid the influence of seawater waves on the upper layer of algae seedlings, avoiding the damage caused by bad weather to algae cultivation, and is suitable for shallow seas with high waves and rapid currents carry out algae farming

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  • Algae wind-wave resisting rope sinking type cultivation facility and method

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Embodiment 1

[0031] Example 1: Asparagus anti-wind and wave sinking rope culture in the sea area of ​​​​distant sea islands

[0032] In this embodiment, on June 13, 2009, 68 strings of asparagus seedling ropes with a length of 2.5 meters were dropped in the sea area on the south side of Rizhao Pingdao, 37 nautical miles away from the shore. The water depth of the area is 8-12 meters, and the average illuminance of the water layer where the seedling ropes are placed is 1500-2000 lux. After two months of breeding, the growth of asparagus was monitored, and the average weight of the seedling rope was 3kg, the maximum weight was 3.8kg, and the weight increased by more than 30 times. Asparagus grows luxuriantly, the color of the algae is purple red, there is no floating mud and attached organisms, and the condition is good.

[0033] During the breeding period, the sea area was affected by the typhoon "Morakot" and there were 9 strong winds, which proved that this method can withstand the test ...

Embodiment 2

[0034] Example 2: Sargassum anti-storm and wave sinking rope culture in the sea area of ​​remote sea islands

[0035] In this embodiment, on June 13, 2009, 76 strings of 2.5-meter-long artificially cultivated sargassum seedlings were put into the sea area south of Rizhao Pingdao, 37 nautical miles away from the shore. The average initial wet weight of the algae seedlings was 47g, and the seedling length was 3cm. Considering the habit of sargassum, choose an area with strong light and fast flow for release. The water depth is about 8 meters. After release, the average illuminance of the water layer where the seedling rope is located is 2500-3000 lux. After breeding for two months, the growth of Sargassum was monitored. The average weight of the seedling rope was 230g, the maximum net weight was 320g, and the weight increased by 7 times. The average seedling length is 8cm, and the maximum is 16cm.

[0036] The algae of Sargassum in the rapids area are dark brown, with less floa...

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Abstract

The invention relates to an algae cultivation technology suitable for shallow sea huge-wave torrential-current sea areas, in particular to algae wind-wave resisting rope sinking type cultivation facility and method, which aim at solving the problem that raft culture algae seedlings are seriously lost in larger wind-wave sea area. The facility is provided with a seedling rope, a drop stone and a floating ball; one end of the seedling rope is tied with the floating ball or other floating bodies, and the other end of the seedling rope is tied with the drop stone or objects made of other materials; and the seedling rope is fixed with algae seedlings. When the algae is thrown, the seedling rope is orderly arrayed on a boat; when the boat reaches a cultivation water area, the boat speed is keptconstant and the algae seedlings are sequentially thrown; and the algae is harvested by a multitooth harrow or partly harvested by divers under water, thereby multiple cultivation can be realized. Theinvention not only ensures that the algae seedling rope completely keeps away from the influence of sea water, wind and wave on the upper layer, avoids the loss of algae cultivation caused by severeweather, but also ensures that the algae can be cultivated in open sea areas or sea areas on the periphery of islands with smoother water current exchange and clean water quality and can be suitable for shallow sea cultivation of small-medium economic algae.

Description

Technical field: [0001] The invention relates to an algae breeding technology suitable for shallow seas with high waves and rapid currents, in particular to a wind-wave-resistant rope-type cultivation facility and method for algae. Background technique: [0002] Raft farming is one of the important farming methods for small and medium-sized economical algae (such as asparagus). Its advantage is that it is easy to manage, but its disadvantage is that the water depth of algae cultivation is relatively shallow. Affected by wind and waves, ropes and seedlings will move violently and become entangled, and algae that are fragile or poorly fixed will fall off in large numbers, causing huge losses to algae cultivation, and the area for algae cultivation is therefore relatively limited. Most of the rafts are located in inner bays with gentle water . Because the aquaculture in the bay is close to the shore, the water body is turbid and the nutrient level is high, the algae are very e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00
CPCY02A40/80
Inventor 许强杨红生赵鹏林承刚周毅刘青远王均光
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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