Overview
This lecture covers various tools and equipment used in aquaculture, their functions, and the importance of safety precautions, as well as key terminology and post-harvest handling.
Tools and Equipment in Aquaculture
- Tools in aquaculture include instruments, machinery, and devices for facility management and maintenance.
- Water pumps (horizontal and vertical centrifugal) are used for recirculating water in aquaculture systems.
- Laboratory thermometers monitor water temperature to ensure optimal living conditions for aquatic organisms.
- Salinometers or refractometers accurately measure water salinity for aquaculture management.
- Dissolved oxygen meters provide essential data to monitor and maintain healthy aquatic environments.
- pH meters are used to measure and monitor water acidity or alkalinity, crucial for aquaculture success.
- Secchi disks help estimate water clarity, assisting in water quality monitoring.
Functions and Maintenance
- Each tool contributes to water quality management, ensuring the health and growth of aquatic organisms.
- Proper use and maintenance of tools are essential for efficient facility operation and sustainable fish production.
Safety Precautions
- Safe handling of all tools and equipment is necessary to prevent accidents and ensure personal safety.
- Awareness of proper tool use reduces risks and supports responsible aquaculture practices.
Basic Fishing Gears and Bait Methods
- Different fishing gears are used for catching fish; examples may include nets and lines, depending on the target species.
- Basic baiting techniques involve selecting and attaching bait to fishing gear to attract and catch fish.
Post-Harvest Handling Activities
- Proper handling after harvesting fish includes sorting, cleaning, and cooling to maintain quality and prevent spoilage.
Key Terms & Definitions
- Salinity — the concentration of dissolved salts in water.
- Versatile — capable of being adapted for various uses.
- Brails — ropes or lines used to control edges or corners of a sail.
- Substrate — the surface or material where an organism lives or attaches.
- Sediment — solid particles settling at the bottom of a liquid or on a solid surface.
Action Items / Next Steps
- Identify three aquaculture tools and describe their uses.
- Create a concept map linking aquaculture tools to their functions.
- Review safety precautions when handling aquaculture equipment.
- Prepare for a quiz on tool identification and basic terminology.