United States Sockeye salmon

spawning kokanee salmon in sawtooth range of idaho, united states

united states sockeye salmon populations listed under endangered species act national marine fisheries service endangered species in snake river , threatened species in lake ozette, washington. snake river sockeye salmon listed endangered in november 1991, after shoshone-bannock tribe @ fort hall indian reservation petitioned national marine fisheries service. other sockeye populations in upper columbia river , in puget sound not listed under act.

sockeye exception 2010 s forecast resurgence of oregonian fish stocks. spring chinook, summer steelhead, , coho forecast increase 100% on 2008 populations. sockeye population peaked @ on 200,000 in 2008 , forecast decline on 100,000 in 2010. indication of unexpectedly high sockeye run in 2010, on july 2, 2010, united states army corps of engineers reported on 300,000 sockeye had passed on bonneville dam on columbia river. lower temperatures in 2008 north pacific waters brought in fatter plankton, which, along greater outflows of columbia river water, fed resurgent populations.

proposed legislative efforts, such northern rockies ecosystem protection act, attempting protect headwaters of sockeye salmon preventing industrial development in roadless areas.

record numbers of once-waning population of sockeye salmon have been returning northwest s columbia basin (as of june 2012), thousands more crossing river s dams in single day total numbers seen in previous years.