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That's really surprising that they could survive with such a small range! How are they counted during their migration?
by anitil 4mo ago
That's really surprising that they could survive with such a small range! How are they counted during their migration?
- chihuahua 4mo agoThere's an organization of volunteers who walk the streambed during spawning season and mark nests with colored tape on nearby branches. I assume while they're doing that, they also count the fish somehow? They also put a trap near the end of the stream at certain times of the year and count the fish in the trap - the fish are obviously released from the trap afterwards.
- anitil 4mo agoThat's really interesting, I didn't think you'd be able to spot nests from the shore like that
- jimjeffers 4mo agoThere are traditional methods like electrofishing and tagging. But there are also non-invasive methods such as environmental DNA where you can detect organism prevalence from DNA shed into the ecosystem. Our platform was built specifically to help share that type of science for restoration and remediation projects: https://www.ednaexplorer.org https://www.ednaexplorer.org
- anitil 4mo agoThat's amazing thanks for sharing it