Overview
This lecture covers essential tools and equipment used in aquaculture, their functions in managing aquatic environments, and important safety practices.
Content & Performance Standards
- Learners gain knowledge and skills in fisheries, focusing on tools, gear, and safety.
- Performance is measured by how well learners use fisheries skills and observe safety protocols.
Learning Competencies & Objectives
- Identify at least three aquaculture tools and describe their uses.
- Explain how each tool maintains healthy aquatic environments.
- Practice safe handling of aquaculture tools.
Key Tools and Equipment in Aquaculture
- Water pumps (horizontal/vertical) recirculate water, with different shaft positions but similar functions.
- Laboratory thermometers monitor water temperature for healthy aquatic organism growth.
- Salinometers/refractometers measure water salinity to maintain suitable living conditions.
- Dissolved oxygen meters track oxygen levels to ensure aquatic life sustainability.
- pH meters measure acidity/alkalinity, helping maintain optimal water conditions.
- Secchi disks measure water clarity for water quality assessments.
Basic Fishing Gears and Baits
- Various fishing gears are used for catching fish, discussed through "Guess the Tool" challenge.
- Basic bait methods and post-harvest handling activities are important for effective fisheries management.
Vocabulary Unlocking
- Salinity: the concentration of dissolved salts in a solution.
- Versatile: able to adapt or be used in various ways.
- Brails: ropes or lines controlling sails.
- Substrate: material where organisms live or attach.
- Sediment: solid particles settling at the bottom of liquids.
Activity: Concept Mapping
- Create a map linking each aquaculture tool to its function (e.g., net → catching fish).
Importance of Aquaculture Tools
- Proper tools boost productivity, ensure water quality, and support fish health in aquaculture operations.
Key Terms & Definitions
- Salinity — concentration of dissolved salts in water.
- Versatile — adaptable or usable for various purposes.
- Brails — ropes/lines for sails.
- Substrate — surface or material where organisms live.
- Sediment — particles that settle at the bottom of a liquid.
Action Items / Next Steps
- Draw a concept map matching tools to their functions.
- Review vocabulary terms and their meanings.
- Practice identifying tools and explaining their uses and safety precautions.