How Chinook help one another find fish ladders

摘要

Throughout the animal kingdom, there are many advantages to migrating in large numbers. One such benefit is "collective navigation," where the social interactions among animals improve the group's ability to find its way.A new University of Washington study has found that Chinook salmon seem to use collective navigation and interact socially to help each other find fish ladders at dams. The findings were I published on Oct. 21 in the Proceedings of the Royal Society B.Salmon migrating upriver often encounter blockages and obstructions they need to circumvent. The implementation of fish ladders alongside large dams have provided salmon with a way to forge ahead, though they still face the challenge of locating, entering, and traversing these fishways.