A professional who performs any combination of following tasks to trap and spawn game fish, incubate eggs, and rear fry in fish hatchery. Respnsibilities include:

• Secures net on both banks of river to divert fish to holding pond.
• Catches ripened fish from holding pond with hand net and squeezes or slits bellies of female fish to release eggs in pail.
• Squeezes bellies of male fish to force milt over eggs, and stirs with rubber-gloved hand to fertilize eggs.
• Fills hatchery trays with fertilized eggs and places trays in incubation troughs.
• Turns valves and places baffles in troughs to adjust volume, depth, velocity, and temperature of water.
• Inspects eggs and picks out dead, infertile, and off-color eggs, using suction syringe.
• Sorts fish according to size, coloring, and species and transfers fingerlings to rearing ponds or tanks, using buckets or tank truck.
• Scatters food over surface of water by hand or activates blower that automatically scatters food over water to feed fish.
• Observes appearance and actions of developing fish to detect diseases, and adds medications to food and water as instructed by superior.
• Transfers mature fish to rivers and lakes, using tank truck.
• Records field data and prepares reports of hatchery activities.
• Drains and cleans ponds and troughs, using brushes, chemicals, and water.
• Makes minor repairs to hatchery equipment, paints buildings, and maintains grounds.
• May spawn and rear food fish or tropical and exotic fish for commercial use.
• May mark migrating fish with liquid nitrogen, using hand-operated branding device.