Basic Requirement: Possess a degree from an accredited college or university in biological science that included at least 6 semester hours in aquatic subjects such as limnology, ichthyology, fishery biology, aquatic botany, aquatic fauna, oceanography, fish culture, or related courses in the field of fishery biology; and at least 12 semester hours in the animal sciences in such subjects as general zoology, vertebrate zoology, comparative anatomy, physiology, entomology, parasitology, ecology, cellular biology, genetics, or research in these fields; OR. Physical Demands: The work requires recurring, at times significant, physical exertion such as walking considerable distances in rough, wet, uneven, or rocky terrain; wading through swift, turbulent waters; bending, crouching, stooping, stretching, reaching, or similar activities; and carrying heavy field equipment up to 50 pounds in weight under a wide variety of environmental conditions during all seasons and temperature extremes.