2019 State of Oregon Coast Coho 12 Year Assessment, Appendix I (OR Fish & Wildlife Commission, 2021)

2022-06-28T13:47:30+00:00

The Oregon Coast Coho Conservation Plan (OCCCP) provides criteria, metrics, and goals for abundance, persistence, productivity, distribution, diversity, and habitat condition. Criteria, metrics and goals for the Oregon Coast Coho Evolutionarily Significant Unit (OC Coho ESU) and Independent Populations are summarized below. Criteria, metrics and goals for Dependent Populations are described in Section II. Additional details can be found in OCCCP Appendix 2, Desired Status: Measurable Criteria for the Oregon Coast Coho Conservation Plan for the State of Oregon. VIEW PDF

2019 State of Oregon Coast Coho 12 Year Assessment, Appendix I (OR Fish & Wildlife Commission, 2021)2022-06-28T13:47:30+00:00

Juvenile Coho Salmon Movement, Growth & Survival (Bell, 2021)

2022-06-28T13:50:14+00:00

Juvenile salmonids display highly variable spatial and temporal patterns of early dispersal that are influenced by density-dependent and density-independent factors. Although juvenile coho salmon (Oncorhynchus kisutch) movement patterns in streams and their relationship with body mass and growth have been examined in previous studies, most observations were limited to one season or one stream section. In this study, we monitored the movement of juvenile coho salmon throughout their period of residence in a coastal basin to identify prevalent dispersal strategies and their relationships with body mass, growth rates and survival. Our results revealed seasonally and spatially variable movement patterns. [...]

Juvenile Coho Salmon Movement, Growth & Survival (Bell, 2021)2022-06-28T13:50:14+00:00

Legal Ecotones: A Riparian Analysis of Riparian Policy Protection in the Oregon Coast Range (Boisjolie et al, 2017)

2022-06-28T13:44:58+00:00

Waterways of the USA are protected under the public trust doctrine, placing responsibility on the state to safeguard public resources for the benefit of current and future generations. This responsibility has led to the development of management standards for lands adjacent to streams. In the state of Oregon, policy protection for riparian areas varies by ownership (e.g., federal, state, or private), land use (e.g., forest, agriculture, rural residential, or urban) and stream attributes, creating varying standards for riparian land-management practices along the stream corridor. Here, we compare state and federal riparian landmanagement standards in four major policies that apply [...]

Legal Ecotones: A Riparian Analysis of Riparian Policy Protection in the Oregon Coast Range (Boisjolie et al, 2017)2022-06-28T13:44:58+00:00

Understanding the Distribution of Juvenile Coho Salmon on the Oregon Coast (Steel et al, 2016)

2022-06-28T13:49:07+00:00

Understanding the distribution of instream habitats and the density of fish within those habitats is 38 essential for effective watershed management and conservation of depressed fisheries 39 populations. For wide-ranging species with a complex life history, such as Pacific salmon, 40 untangling these relationships is particularly challenging. Field data describing instream habitats 41 are generally only available over a small fraction of a species range; occupied habitat types may 42 differ by life stage; and, even within a particular habitat type, suitability and capacity rarely 43 remain constant over time. Landscape-scale studies, based on the conceptual model that natural [...]

Understanding the Distribution of Juvenile Coho Salmon on the Oregon Coast (Steel et al, 2016)2022-06-28T13:49:07+00:00

Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon (Hance et al, 2016)

2022-06-28T13:49:19+00:00

For several species of Pacific salmon (Oncorhynchus spp.) inhabiting coastal temperate streams, juvenile fish have been recorded moving between mainstem and tributary habitats during the transition from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall movement for juvenile coho salmon between mainstem and tributary streams during the fall of 2002, 2003, 2004, and 2005. Juvenile coho salmon were [...]

Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon (Hance et al, 2016)2022-06-28T13:49:19+00:00

Riverscape Patterns Juvenile Coho Salmon in Midcoastal Oregon (Flitcroft et al, 2014)

2022-06-28T13:49:25+00:00

Patterns of salmon distribution throughout a riverscape may be expected to change over time in response to environmental conditions and population sizes. Changing patterns of use, including identification of consistently occupied locations, are informative for conservation and recovery planning. We explored interannual patterns of distribution by juvenile Coho Salmon Oncorhynchus kisutch in 11 subbasins on the midcoast of Oregon. We found that juvenile Coho Salmon distribution expanded and contracted around stream sections that were continuously occupied (core areas). Timing of expansion or contraction was synchronous among subbasins and appeared to be related to the size of the parental spawning [...]

Riverscape Patterns Juvenile Coho Salmon in Midcoastal Oregon (Flitcroft et al, 2014)2022-06-28T13:49:25+00:00

Contribution of Migrant Coho Salmon to Spawning Populations on the S. Oregon Coast (Nordholm, 2014)

2022-06-28T13:51:32+00:00

The typical coho salmon life history has been characterized by juvenile fish that spend their entire first year in freshwater habitats before migrating into estuaries as smolts. However, reports of early migrating coho fry (age 0), including migration downstream to estuarine habitats, date back to the 1960s. Until a few years ago, these individuals were considered to be displaced surplus fish with low chances of survival. Recent studies have suggested that subyearling estuarine migrating coho salmon could be an alternative life history in coastal populations, but their return as jacks or mature adults needed to be documented for this [...]

Contribution of Migrant Coho Salmon to Spawning Populations on the S. Oregon Coast (Nordholm, 2014)2022-06-28T13:51:32+00:00

Coho Salmon Life History Patterns in the Pacific Northwest California (Lestelle, 2007)

2022-06-28T13:51:41+00:00

In 1997 coho salmon (Oncorhynchus kisutch) in the Klamath River basin, as part of the Southern Oregon Northern California Coasts evolutionary significant unit (SONCC Coho ESU), were listed as threatened under the Endangered Species Act (ESA). The National Marine Fisheries Service (NMFS) cited water management, water quality, loss of habitat, overfishing, and other factors as causing a serious decline of the species within this ESU. VIEW PDF

Coho Salmon Life History Patterns in the Pacific Northwest California (Lestelle, 2007)2022-06-28T13:51:41+00:00

Appendix to the Oregon Coastal Coho Conservation Management Plan (OR Fish & Wildlife, 2004)

2022-06-28T13:45:34+00:00

Early in 2004, the State of Oregon and the National Marine Fisheries Service (NOAA Fisheries) joined together to engage in a collaborative project to address the conservation of coastal coho on the Oregon Coast. The primary objectives of the project, presented at the formation meeting of the Stakeholder Team... VIEW PDF

Appendix to the Oregon Coastal Coho Conservation Management Plan (OR Fish & Wildlife, 2004)2022-06-28T13:45:34+00:00
Go to Top