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Method for preventing and controlling copepods in young sea cucumber breeding pond of tropical sea cucumbers

A technology for nursery ponds and copepods, which is applied in the field of prevention and control of copepods in tropical sea cucumber juvenile ginseng nursery ponds, and can solve the problems of copepods prone to drug resistance, mechanical damage of juvenile ginseng at the bottom of the pond, and increased nursery workload and other issues, to achieve the effects of environmental protection, improving the quality of sea cucumbers, and reducing the use of drugs

Active Publication Date: 2014-07-09
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although copepods can be killed in time by applying 1ppm to 2ppm of crystal trichlorfon, copepods are prone to develop drug resistance; in addition, dead copepods should be removed from the breeding tank in time, if the removal is not complete It is easy to cause a large number of bacteria to multiply, and it is easy to cause mechanical damage to juvenile ginseng at the bottom of the pond during the operation of removing dead copepods and increase the workload of seedling cultivation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Take the use of Amphiprion ocellaris and Chrysiptera cyaned to control copepods in juvenile sea cucumber ponds as an example.

[0014] Comparative experiment: The place was Yongxing Island, Xisha, and the time was August 2011. Before and one week after juvenile Apostichopus japonicus attached to metamorphosis, trichlorfon was used to kill copepods twice, but then the third When trichlorfon was used again, the effect was not good, and some copepods developed resistance and could not be completely killed.

[0015] Implementation of the experiment: After thoroughly removing the residual trichlorfon in the nursery pond. At that time, 2 weeks after the metamorphosis of sea cucumber larvae, the body length of sea cucumber juveniles was about 0.5 cm, and the water body in the nursery pond was 2.5 cubic meters. A small number of copepods appeared in the nursery pond. cm blue devil fish and 3 male clownfish with a body length of 2-3 cm, juvenile ginseng is still cultured and ma...

Embodiment 2

[0017] Take the use of clownfish (Amphiprion ocellaris) and blue devil fish (Chrysiptera cyaned) to control copepods in juvenile sea cucumber ponds as an example.

[0018] The implementation site is Zhanjiang Donghai Island, and the time is October 2011. At that time, 2 weeks after the metamorphosis of the juvenile sea cucumber larvae, the juvenile ginseng was about 0.5 cm long, and the breeding water in the nursery pond was 10 cubic meters. When copepods appeared in the nursery pond , a total of 15 blue devil fish with a body length of 2-3 cm and 5 male clownfish with a body length of 3-4 cm were put in. The juvenile ginseng is still bred and managed according to conventional methods. The mixed culture continued for 50 days until the young ginseng was used for pond culture when the body length reached 3-4 cm. During the cultivation period, the number of copepods was effectively controlled, the survival rate of the young ginseng was high, and the two fish survived well. , ther...

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Abstract

The invention discloses a method for preventing and controlling copepods in a young sea cucumber breeding pond of tropical sea cucumbers. The method comprises the steps of after the young sea cucumbers are subjected to metamorphosis and attachment for two weeks and the length of the young sea cucumber is 0.5cm the young sea cucumber is 0.5cm long, putting amphiprioninae or chrysiptera cyaned or both into the breeding pond when copepods appear in the breeding pond, and culturing and managing the young sea cucumbers according to a conventional method. A large number of experiments show that the amphiprioninae and chrysiptera cyaned can coexist with the young tropical sea cucumbers without damaging the same and can control the copepods, so that the survival rate of the young sea cucumbers is high. Compared with the prior art, the method can reduce the use of medicines, is beneficial to protecting environments and improving the quality of sea cucumbers, and meanwhile, reduces workload in a young sea cucumber culturing period, and avoids mechanical losses of the young sea cucumbers in an operating process, thus being beneficial to the rapid and healthy growth of the young sea cucumbers.

Description

Technical field: [0001] The invention relates to the breeding technology of tropical sea cucumbers including sea cucumbers and sea cucumbers, in particular to a method for preventing and controlling copepods in juvenile tropical sea cucumber nursery ponds. Background technique: [0002] Sea cucumber has high nutritional value and medicinal value. It is considered as a traditional delicacy and tonic in my country, and it is one of the "Eight Treasures". At present, in order to meet people's growing demand for sea cucumber products, research on tropical sea cucumber nursery and breeding is gradually being carried out in the south. There are many types of copepods in the southern waters, and they grow and reproduce quickly. From the perspective of the marine food chain, planktonic copepods are the bait basis for the main economic fish in the middle and upper layers of the South China Sea (such as orchid trevally, mackerel and golden sardine, etc.). However, during the cultivat...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 夏建军胡超群罗鹏王艳红
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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