- Nets: Nets are used to catch fish for study. They come in a variety of shapes and sizes, depending on the type of fish being caught.
- Rods and reels: Rods and reels are used to catch fish for study or for recreational purposes. They come in a variety of sizes and power levels, depending on the type of fish being caught.
- Traps: Traps are used to catch fish for study or for recreational purposes. They come in a variety of shapes and sizes, depending on the type of fish being caught.
- Electrofishing gear: Electrofishing gear uses electricity to stun fish so that they can be easily captured. It is typically used in shallow water or in areas with a lot of vegetation.
- Ichthyometers: Ichthyometers are used to measure fish length, diameter and other dimensions.
- Scales: Scales are used to weigh fish. They come in a variety of sizes, depending on the size of fish being weighed.
- Microscopes: Microscopes are used to examine fish tissues, scales, and other small structures.
- Computers: Computers are used to store and analyze data, perform statistical analyses and develop scientific models.
- Reference books and databases: Reference books and databases are used to identify fish species, learn about fish biology and ecology, and obtain historical information.
- Boats: Boats are used to access different habitats and study fish in open waters.
- Underwater cameras and video equipment: Underwater cameras and video equipment are used to observe and record fish behavior in their natural environment.
- Acoustic telemetry equipment: Acoustic telemetry equipment consists of transmitters attached to fish that emit acoustic signals detected by receivers, allowing scientists to track fish movement and behavior over long distances.
This list is not exhaustive; ichthyologists may use other specialized tools depending on their particular area of research.