Homing and Orientation of Cutthroat Trout (Salmo clarki) in Yellowstone Lake, with Special Reference to Olfaction and Vision

摘要: In-season homing was exhibited by mature cutthroat trout (Salmo clarki) displaced from spawning tributaries to Yellowstone Lake during late May early August 1964, 1965, and 1966. Of 1908 tagged Clear Cub creeks three release points in the lake (1.55–7.95 km) mouths of streams, 614 (32.2%) homed, 119 (6.2%) strayed, 28 (1.5%) were captured anglers. Only slight differences performance various occurred, but there among years between streams. Adjusted mean times ranged 16 hr 155 hr, with an inverse relation distance point apparent one year. Blockage olfactory or visual sense did not affect per cent straying. However, clues increase speed homing, since for blinded much longer than olfactory-occluded, control (anesthetized only), non-a...