Sockeye salmon over Bonneville Dam on the Columbia River. Lower temperatures in 2008 North Pacific waters brought in fatter plankton, which, along with greater outflows of Columbia River water, fed the resurgent populations. Proposed legislative efforts, such as the Northern Rockies Ecosystem Protection Act, are attempting to protect the headwaters of the sockeye salmon by preventing industrial development in roadless areas. Record numbers of a once-waning population of sockeye salmon have been returning to the Northwest's Columbia Basin (as of June 2012), with thousands more crossing the river's dams in a single day than the total numbers seen in some previous years.
Fish cosmetic palette for forward, and rear pectoral fins. Two forward arced lines form gill slits, and a yellowish eye is made with inlay. The Louvre dolphin type fish palette is a Naqada I, or II palette. It has simple fish fin grooves on its tail, and its dorsal fin, towards the rear. The palette has an inlaid white eye, (often of shell). Because of its extended length, it contains three suspension holes. The fish palette at the Kunsthistorisches Museum, Vienna, is more ornate than common fish palettes. It is a Bulti-fish type, and notable for a large cosmetic "mixing circle" adorning the