Genetic isolation despite geographic proximity highlights threat to island fish species - Phys.org - latest science and technology news stories

Amphidromous fish—which migrate betwixt freshwater streams and the sea—can determination betwixt habitats acknowledgment to water currents. Since land streams are mostly tiny and susceptible to quality impact, knowing however precisely food populations are connected betwixt streams and betwixt islands is important for the conservation of geographically isolated species.