Strontium isotopes delineate fine-scale natal origins and migration histories of Pacific salmon
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Abstract
Highly migratory organisms present major challenges to conservation efforts. This is especially true for exploited anadromous fish species, which exhibit long-range dispersals from natal sites, complex population structures, and extensive mixing of distinct populations during exploitation. By tracing the migratory histories of individual Chinook salmon caught in fisheries using strontium isotopes, we determined the relative production of natal habitats at fine spatial scales and different life histories. Although strontium isotopes have been widely used in provenance research, we present a new robust framework to simultaneously assess natal sources and migrations of individuals within fishery harvests through time. Our results pave the way for investigating how fine-scale habitat production and life histories of salmon respond to perturbations—providing crucial insights for conservation.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Strontium isotopes delineate fine-scale natal origins and migration histories of Pacific salmon |
| Series title | Science Advances |
| DOI | 10.1126/sciadv.1400124 |
| Volume | 1 |
| Issue | 4 |
| Year Published | 2015 |
| Language | English |
| Publisher | AAAS |
| Contributing office(s) | Alaska Science Center Geography |
| Description | 7 p. |
| Country | United States |
| State | Alaska |
| Other Geospatial | Nushagak River |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |