Ichthyological field studies. Fish and device in old table. Weighing, measuring, scaling, taking tissue samples from river fish, study populations and
Ichthyological field studies. Fish and device in old table. Weighing, measuring, scaling, taking tissue samples from river fish, study populations and pollution. Grayling (Th. thymallus). Scandinavia
Size: 3367px × 3721px
Photo credit: © Maximilian Buzun / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: activity, advanced, age, animal, breeding, catch, device, ecology, expedition, exploration, fauna, field, fish, fishery, fishing, fresh, goldfish, grayling, ichthyological, ichthyology, icthyological, identification, industrial, investigation, laboratory, meal, measurement, measuring, migration, pollution, population, populations, predator, research, researches, river, salmo, samples, scaling, scandinavian, science, scientific, structure, studies, study, table, thymallus, tissue, trout, trutta, water, weighing, whitefish, wild, work