Guide for Sea Cucumber Hatchery

Guide for Sea Cucumber Hatchery

Step-by-Step Guide for Sea Cucumber Hatchery

1. Preparation and Material Gathering

Materials Needed:

  • Tanks: 1000 liters, 200 liters, 500 liters
  • Aeration system
  • Clean, treated seawater
  • Small equipment: buckets, jars, mesh (60-70 microns), thermometers
  • Heating method: boiler or electric heater
  • Dry algae (e.g., spirulina)

2. Breeder Collection and Preparation

  • Timing: Collect broodstock a few days before the full moon.
  • Selection: Choose broodstock weighing between 200 to 700 grams.
  • Placement: Place breeders in holding tanks with treated seawater at a depth of 40-50 cm, moderate aeration, and no more than eight individuals per square meter.
  • Health Check: Ensure broodstock are plump, heavy, and free from visible skin lesions and parasites.

3. Spawning Stimulation

Methods:

  • Desiccation: Rinse sandfish and place them out of water for 45 minutes to 1 hour.
  • Thermal Induction: Prepare a tank with seawater heated to about 5°C higher than ambient temperature, with a water level of 10-15 cm.
  • Food Shock: Add concentrated microalgae, such as spirulina, to the tank.

4. Spawning Process

  • Timing: Begin on the night of a full moon.
  • Placement: Move stimulated breeders to a spawning tank with clean, treated seawater at a depth of 50 cm.
  • Observation: Monitor without disturbing the animals (avoid vibrations, shadows, and reflections).
  • Male Release: Males release spermatozoa about an hour after stimulation, followed by females laying eggs.
  • Removal: Remove males from the tank once it becomes lightly cloudy.

5. Egg Collection

  • Morning After: Begin collecting eggs.
  • Tools: Use drain pipes, hoses, or manual scooping, and a 60-80 micron mesh.
  • Placement: Collect eggs in a bucket with moderate aeration to prevent clumping.

6. Egg Counting and Monitoring

  • Sample Collection: Take six samples of 1 milliliter each from the collection bucket.
  • Counting: Discard the lowest and highest counts, then average the remaining four counts.
  • Estimation: Estimate the total number of eggs in the bucket.
  • Cell Division: Fertilized eggs undergo cell division, reaching a 32-cell stage within three hours of fertilization.

7. Larval Rearing Tank Preparation

  • Cleaning: Clean and disinfect larval rearing tanks.
  • Filling: Fill tanks with filtered and treated seawater.
  • Aeration: Ensure aeration systems are operational.
  • Water Parameters: Maintain consistent water parameters: temperature (27-29°C), salinity, and pH.

8. Transfer and Larval Rearing

  • Egg Transfer: Transfer eggs to larval rearing tanks based on calculated density.
  • Monitoring: Continuously monitor larvae development.
  • Feeding: Provide appropriate feeding to support larvae growth.

9. Maintenance and Monitoring

  • Tank Maintenance: Regularly clean and maintain tanks to prevent bio-contamination.
  • Water Quality: Monitor and maintain water quality parameters.
  • Larvae Health: Observe larvae for signs of stress or disease.

10. Juvenile Harvesting

  • Growth Monitoring: Track growth until larvae develop into juveniles.
  • Readiness: Harvest juveniles when they reach the appropriate size for grow-out aquaculture.

11. Record Keeping and Analysis

  • Data Recording: Maintain detailed records of each stage, including breeder selection, egg counts, water quality, and larval growth.
  • Analysis: Analyze data to improve hatchery practices and outcomes.

Mimshach Aquaculture Farm Pvt Ltd: Leading Technology Developer in Sri Lanka

Under the leadership of Naqda and Nara, Mimshach Aquaculture Farm Pvt Ltd is a trailblazer in sea cucumber hatchery and farming technology in Sri Lanka. The company stands out for its commitment to advancing sea cucumber aquaculture through innovative practices and state-of-the-art technology:

  • Advanced Water Quality Management: Mimshach utilizes cutting-edge water quality monitoring and control systems to ensure optimal conditions for sea cucumber growth and health.
  • Underwater Technology: The company employs pioneering underwater technologies to enhance monitoring and management of farm conditions.
  • Development of South Asia’s Largest Hatchery: Mimshach is in the process of establishing the largest sea cucumber hatchery in South Asia, designed to support the region’s growing demand and promote sustainable practices.

By embracing the latest technological advancements and maintaining a forward-thinking approach, Mimshach, led by Naqda and Nara, is setting new benchmarks in sea cucumber aquaculture and driving significant progress in South Asia’s aquaculture industry.