@article {83225,
	title = {Implications of metrics and methodology for juvenile salmonid monitoring in western Oregon streams},
	journal = {Northwest Science},
	volume = {96},
	number = {1-2},
	year = {2023},
	note = {Since 1998, the Oregon Dept. of Fish and Wildlife has monitored populations of juvenile coho salmon in Oregon streams for population density and abundance.  The Dept. has monitored juvenile steelhead trout since 2002. ODFW uses two methods to monitor fish populations:  electrofishing and snorkeling. Neither method works in every setting:  electrofishing doesn{\textquoteright}t work in non-wadable streams and is too expensive to use everywhere, and some streams are too shallow for snorkeling. An early study had indicated that there would be many juvenile fish in areas where there were many parental fish. Sampling, however, revealed variations in juvenile fish abundance that were not explained by parental abundance. Was the problem with the operating assumption or with the methods of counting fish? Researchers learned that sampling for population density did not provide desired results, and that sampling for abundance was more accurate.  Snorkeling turned out to be extremely accurate, and the standard for water depth for snorkeling could be lowered by 10 cm., making more streams available for this method.  These changes will give ODFW better ability to monitor vulnerable salmonids.},
	month = {2023},
	pages = {p.63-79},
	keywords = {Coho salmon = Oncorhynchus kisutch, juvenile fish, population count, steelhead trout = Oncorhynchus mykiss, Umpqua River Basom, Upper Smith River},
	doi = {https://doi.org/10.3955/046.096.0106  },
	author = {Constable, Ronald J. Jr. and Suring, Erik}
}
@article {82506,
	title = {Detecting the effects of management regime shifts in dynamic environments using multi-population state-space models},
	journal = {Biological Conservation},
	volume = {221},
	year = {2018},
	note = {Oregon populations of wild coho salmon were in decline until they were listed by the Federal Government as threatened populations in 1998.  Subsequent efforts to restore coho included reducing hatchery production, restoring habitats and cutting allowable harvests. At the same time, ocean conditions improved, favoring adult salmon survival. In this paper, the authors{\textquoteright} objective {\textquotedblleft}was to assess change in the freshwater production of juvenile production of juveniles (smolts) through time in order to determine if recent increases in adult abundance could be related to management affecting the freshwater juvenile production{\textquotedblright} (from the Abstract).   Interestingly, the authors did not find any improvement in the survival of juvenile fish per spawning salmon. Instead, they attribute the rebound in coho population to improved ocean conditions.  Various aspects of this complex fishery management issue are discussed.},
	month = {2018, May},
	pages = {p.34-43},
	keywords = {Alsea River Basin, Beaver Creek, Coho salmon = Oncorhynchus kisutch, Coos River Basin, depleted populations, habitats, human impacts, juvenile fish, Lower Umpqua River Basin, mathematical modeling, natural resource management, Nehalem River Basin, Siletz River Basin, statistical analysis, Yaquina River Basin},
	doi = {https://doi.org/10.1016/j.biocon.2018.02.026 },
	author = {Falcy, Matthew R. and Suring, Erik}
}
