Articles on Fish migration
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Climate change models predict tuna will leave the waters of Pacific Island nations, meaning they will lose a crucial revenue source.
A recent US study found tyre chemicals were polluting rivers and poisoning migratory salmon.
Fish need to cross roads too. But the tunnels built to channel rivers under roads and railways can block their migrations.
Animals shed bits of DNA as they go about their lives. A new study of the Hudson River estuary tracked spring migration of ocean fish by collecting water samples and seeing whose DNA was present when.



