California Department of Fish and game biologist Sarah McCulloch extracts a pair of ear bones, or otoliths, from a salmon found on the Tuolumne River near La Grange.
California Department of Fish and game biologist Sarah McCulloch extracts a pair of ear bones, or otoliths, from a salmon found on the Tuolumne River near La Grange. Elias Funez Modesto Bee file
California Department of Fish and game biologist Sarah McCulloch extracts a pair of ear bones, or otoliths, from a salmon found on the Tuolumne River near La Grange. Elias Funez Modesto Bee file