Hatchery trout stocking provides supplementary fish populations
to the life of natural lakes and reservoirs. Recreational anglers enjoy
fishing such waters from shore, docks and boats.
Donner Lake, a freshwater lake in the Sierra Nevada located within the town limits of Truckee in California, gets stocked
with rainbow trout and
with kokanee salmon: Donner Lake also has plenty of Mackinaw and brown trout [1,2].
View of Donner Lake from Mt. Judah,
located west of the lake
Donner Lake is a natural alpine lake placed between the Donner Ridge to the north and Shallenburger Ridge to the south. Just under three miles long, it width does not surpass one mile. The deepest point was measured to be at 328 feet (about 100 m) . It surface area has been given as 960 acres (page 4 in ). The water body underneath provides enough room to hold thriving populations of fish, which are occasionally stocked up to enhance fishing experience. Contaminants such as mercury and polychlorinated biphenyls (PCBs) have been analyzed in edible tissues of some fish species from Donner Lake; but typical levels of contamination are low enough to safely consume a fish serving per week. A guide to eating fish caught in Donner Lake is available .
The sequence of pictures below documents the release of rainbow trout into Donner Lake during a morning hour on August 22, 2012. A fish truck— its tanks containg 8,000 rainbow trouts—arrived from a Sacramento fish hatchery at the boat ramp in the northwest corner of the lake. The release of fish from the tanks took less than hour. After tumbling down into the water, some fish tried to swim “upstream,” meaning upramp onto dry territory, but the majority found deeper water quickly. Of course, the release didn't procede unnoticed by predating birds that were scanning the water surface from above and eventually got a meal. And in case you wonder: they are not familar with catch-and-release practises.
References and additional information