The shallow parts of this, the ovarium, are floored with sand and stones, in imitation of a river's bed. The deep part has only a few pieces of rock at the bottom. Salmon spawn in September ...

From certain facts we may infer that salmon under the impelling force of a ‘spawning urge’ travel to their natal rivers by virtue of a ‘homing instinct’, and ‘wait’ at the mouths of ...

Chum salmon, which are rare for Marin, are also spawning: Five adults and two redds ... more than 270 logs and 12,000 tons of gravel to create the bed. Coho salmon generally have three-year ...

Thomas Kline (USA) watches through crystal waters as pink salmon prepare to mate. With his camera placed in a likely spawning spot on the gravel stream bed, Thomas watched the flurry of underwater ...

Wet winter conditions in 2023 and 2024 made for ideal spawning conditions. Because salmon have a three-year life cycle, officials expect the population abundance to significantly increase starting ...