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Suspension cultivation method for sargassum horneri seedlings

A cultivation method and suspension culture technology are applied in the field of suspension cultivation of copper algae seedlings, which can solve the problems of low seedling growth rate, difficulty in meeting large-scale artificial cultivation, construction of algae farms, slow growth, etc., so as to save attachment substrate and improve seedling cultivation. rate effect

Inactive Publication Date: 2015-02-11
ZHEJIANG MARICULTURE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high water temperature in the early stage of seedling breeding, there are many predatory fish, and diatoms, enteromorpha, and dirt are seriously attached, resulting in a low seedling breeding rate and slow growth, which is difficult to meet the needs of large-scale artificial breeding and algae farm construction.

Method used

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  • Suspension cultivation method for sargassum horneri seedlings

Examples

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Effect test

Embodiment 1

[0012] Randomly select 50-day-old copper algae seedlings with a plant height of 0.5-0.6 cm and put them into the cultivation tank in the cultivation room. The seedling density is 25 plants / L, and the water is changed by 50% every day. Always in a suspended state, the water temperature is 20°C, the salinity is 25‰, the light intensity is 4500LX, the light cycle (light period: dark period) is 18:6, and it is cultivated for 35 days.

Embodiment 2

[0014] Randomly select 55-day-old copper algae seedlings with a plant height of 0.5-0.8 cm and put them into the cultivation tank in the cultivation room. The seedling density is 20 plants / L, and the water is changed by 50% every day. Always in a suspended state, the water temperature is 23°C, the salinity is 28‰, the light intensity is 3500LX, the light cycle (light period: dark period) is 18:6, and it is cultivated for 35 days.

Embodiment 3

[0016] Randomly select 60-day-old copper algae seedlings with a plant height of 0.5-1 cm and put them into the cultivation tank in the cultivation room. The seedling density is 15 plants / L, and the water is changed by 50% every day. In a suspension state, the water temperature is 25°C, the salinity is 30‰, the light intensity is 2500LX, the light cycle (light period: dark period) is 18:6, and it is cultivated for 30 days.

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Abstract

The invention discloses a suspension cultivation method for sargassum horneri seedlings. The method comprises the following steps: selecting the sargassum horneri seedlings of 50-60 days without attached matrixes and placing in a cultivation jar in a cultivation room, wherein the density of the seedlings is 15-25 plants / L; continuously inflating in a cultivation period; keeping the sargassum horneri seedlings in a suspension state all the time; changing 50 percent of water each day by using artificially purified seawater; artificially regulating and controlling an environmental factor and proper cultivation density in the whole process; cultivating for 20-35 days; cultivating the sargassum horneri seedlings in the sea when the plant height of the sargassum horneri seedlings is 5-7 cm. According to the method, the attached matrixes are saved, the adhesion influence of enemy fishes, diatom, dirt and the like is avoided, and the seedling cultivation rate is improved.

Description

technical field [0001] The invention relates to a method for cultivating seaweed, in particular to a method for cultivating copper algae seedlings in suspension. Background technique [0002] The copper algae Sargassum horneri (Turn.) Ag. belongs to the genus Sargassum, is a large warm temperate seaweed endemic to the west of the North Pacific Ocean, and is distributed in the coastal shallow sea area of ​​my country. Copper algae plants are tall, with luxuriant branches and leaves, and mostly grow on shallow sea rocks in the subtidal zone, floating in patches on the water surface, which can be called "sea forest" and "ecological fishing reef". The formed seaweed field is inhabited by various types of marine organisms, providing an ideal place for avoiding enemies, hunting for bait, and laying eggs. The rapid growth and huge biomass of copper algae have aroused the attention and interest of marine workers, and are listed by marine ecologists as one of the important species f...

Claims

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Application Information

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IPC IPC(8): A01G33/00
CPCY02A40/80
Inventor 王铁杆张鹏孙庆海谢起浪张华伟陈少波艾为明
Owner ZHEJIANG MARICULTURE RES INST
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