A local population of Black Land Crabs is noteworthy for its breeding migration, which occurs every April / May.
2.
It has declined drastically due to pollution, dams ( preventing its natural breeding migration ), overfishing, introduced species and collection for the aquarium trade.
3.
Other major stakeholders include the multimillion-dollar commercial salmon-fishing industry, the recreational sport-fishing industry, the logging industry with its huge impact on the survival of salmon rivers, and the industrial groups that need the electric power produced by the huge dams that block the breeding migration of millions of salmon a year.
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