High-survival-rate propagation method of larimichthys polyactis fries in low-salinity sea areas

• Main Authors: LIU FENG, LOU BAO, CHEN HONGLIN, XIE QINGPING, ZHAN WEI
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; NEW BREEDS OF ANIMALS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; TRAPPING

The invention discloses a high-survival-rate propagation method of larimichthys polyactis fries in low-salinity sea areas and belongs to the technical field of seawater fish fry rearing. The method ischaracterized by including following steps: 1), adjusting salinity of a spawning pond; 2), collecting fertilized eggs; 3), separating high-quality fertilized eggs; 4), hatching the fertilized eggs; 5), desalting breeding water, and managing the fries. By the method, impact on embryonic development even death during embryonic development caused by the fact that the high-quality fertilized eggs inthe spawning pond sink to the bottom due to low water salinity can be avoided effectively, and easy collection of the high-quality fertilized eggs is facilitated. By lowering salinity of a nursery pond at a specific rate, normal growth and development of newly-hatched fries can be realized with lowest impact, and highest survival rate is ensured. 一种低盐度海区小黄鱼苗种高成活率繁殖方法，属于海水鱼类苗种培育技术领域。其特征在于包括以下步骤：1）产卵池盐度调节；2）受精卵收集；3）优质受精卵分离；4