@article {83230, title = {Headwater streams and wetlands are critical for sustaining fish, fisheries, and ecosystem services}, journal = {Fisheries}, volume = {44}, number = {2}, year = {2019}, note = {In 2019, the Trump Administration proposed amending the Waters of the United States (WOTUS) Act to narrow the definition of wetlands, and to remove millions of acres from protection. In resonse, the American Fisheries Society published this article, an {\textquotedblleft}AFS Special Report{\textquotedblright} on the value of headwaters and wetlands, particularly of streams that are dry part of the year. The Biden Administration subsequently reversed the Trump amendment, but the U.S. Supreme Court, in Sackett vs. the Environmental Protection Agency, ruled in favor of narrowing the definition in 2023. Many aspects of this slow-moving environmental disaster are still in litigation. The article includes a photograph of Crowley Creek on Cascade Head.}, month = {2019, Feb.}, pages = {p.73-91}, keywords = {Calapooia River, Cascade Head National Scenic And Research Area, Coho salmon = Oncorhynchus kisutch, Crowley Creek, depleted populations, ecosystem health, environmental law and policy, general, Oregon chub = Oregonichthys crameri, wetlands, Willamette River}, doi = {https://doi.org/10.1002/fsh.10229 }, url = {https://ir.library.oregonstate.edu/concern/articles/n583z1008 }, author = {Colvin, Susan A. R. and Sullivan, S. and Mazeika P. and Shirey, Patrick D. and Colvin, Randall W. and Winemiller, Kirk O. and Hughes, Robert M. and Fausch, Kurt D. and Infante, Dana M. and Olden, Julian D. and Bestgen, Kevin R. and Danehy, Robert J. and Eby, Lisa} } @article {82531, title = {Insights into estuary habitat loss in the western United States using a new method for mapping maximum extent of tidal wetlands}, journal = {PLoS One}, volume = {14}, number = {8}, year = {2019}, note = {This article recounts the techniques that led to the production of the 2017 maps to model the effects of sea level rise. The authors used lidar digital elevation models and other elevation models to develop new maps of current and historical wetlands on the United States West Coast. Their work shows that about 85\% of historical wetlands have been lost, with most losses near major river deltas. {\textquotedblleft}The new maps will help interested groups improve action plans for estuarine wetland habitat restoration and conservation, and will also provide a better baseline for understanding and predicting future changes with projected sea level rise{\textquotedblright} (from the Abstract).}, month = {2019, Aug. 14}, keywords = {climate, habitats, human impacts, salinity, sea level, wetland vegetation, wetlands, remote sensing, mathematical modeling}, doi = {https://doi.org/10.1371/journal.pone.0218558 }, url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0218558 }, author = {Brophy, Laura S. and Greene, Correigh M. and Hare, Van C. and Holycross, Brett and Lanier, Andy and Heady, Walter N. and O{\textquoteright}Connor, Kevin and Imaki, Hiroo and Haddad, Tanya and Dana, Randy} } @article {82982, title = {Status of the European Green Crab, Carcinus maenas, in Oregon and Washington Coastal Estuaries in 2018}, year = {2019}, note = {The invasive European green crab is a voracious predator of bivalve molluscs, small crustaceans and other organisms. It has been present in Oregon since the late 1990s. The population grows when winter waters are warm, as they are during El Ni{\~n}os. {\textquotedblleft}After the arrival of a strong year class in 1998, significant recruitment to the populations occurred only in2003, 2005, 2006, 2010, 2015, 2016, 2017 and 2018. Warm winter water temperatures, high Pacific Decadal Oscillation (PDO) and Multivariate ENSO (El Ni{\~n}o Southern Oscillation) Indices, and a high abundance of southern copepods are all correlated with strong year classes and vice versa. . . Prior to 2015, green crabs were too rare to exert measurable effects on the native benthic community and on shellfish culture in Oregon and Washington. Following the recent strong El Ni{\~n}o, however, we documented the arrival of four strong year classes in 2015, 2016, 2017 and 2018. Average catch rates over the last four years steadily increased from 0.5 to 0.8 to 2.2 and to 3.2 crabs per trap. The catches in the last 2 years are much higher than in any of the previous years, including 1998. Since green crabs live for 6 years, these four consecutive year classes will produce larvae until 2024..{\textquotedblright} (from the Executive Summary) Coos Bay, in particular, has experienced shocking growth of this population, going from 9 crabs captured in 2002 to 1,280 crabs captured in 2018. This report is accompanied by a dataset, available at: https://ir.library.oregonstate.edu/concern/datasets/tt44pt057 }, pages = {30 p.}, institution = {Pacific States Marine Fisheries Commission. Aquatic Nuisance Species Project}, address = {Portland, Or.}, keywords = {Alsea Bay, aquatic invertebrates, Coos Bay, Coquille River estuary, crustaceans, El Ni{\~n}o, European green crab = Carcinus maenas, introduced species, Nehalem Bay, Netarts Bay, Pacific Decadal Oscillation, population count, Tillamook Bay, Yaquina Bay}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/vt150q47j }, author = {Yamada, Sylvia Behrens, and Schooler, Shon and Yednock, Bree and Indivero, Julia and Carlson, Christopher and Prickett, Joel A. and Randall, Andrea} } @article {82861, title = {Status of the European Green Crab, Carcinus maenas, in Oregon and Washington coastal Estuaries in 2017}, year = {2018}, note = {The invasive European green crab is a voracious predator of bivalve molluscs, small crustaceans and other organisms. It has been present in Oregon since the late 1990s. The population grows when winter waters are warm, as they are during El Ni{\~n}os. {\textquotedblleft}Prior to 2015, green crabs were too rare to exert measurable effects on the native benthic community and on shellfish culture in Oregon and Washington. Following the recent strong El Ni{\~n}o, however, we documented the arrival of three strong year classes in 2015, 2016 and 2017. Average catch rates in over the last three years steadily increased from 0.5 to 0.8 and to 1.9 crabs per trap. These catches are much higher than in any of the previous years, including 1998. Since green crabs live for 6 years, these three consecutive year classes will provide larvae until 2023. A switch to cooler ocean conditions in the coming years will result in poor recruitment, but a return to high PDO and strong El Ni{\~n}o patterns would signal good recruitment and higher green crab densities.{\textquotedblright} (from the Executive Summary) Coos Bay, in particular, has experienced shocking growth of this population, going from 9 crabs captured in 2002 to 1,653 crabs captured in 2017. This report is accompanied by a dataset, available at: https://ir.library.oregonstate.edu/concern/datasets/rn3016632 }, pages = {29 p.}, institution = {Pacific States Marine Fisheries Commission. Aquatic Nuisance Species Project}, keywords = {Alsea Bay, aquatic invertebrates, Boat ramp (Netarts), Coos Bay, Coquille River estuary, crustaceans, El Nino, European green crab = Carcinus maenas, Grays Harbor (Wa.), Hatfield Marine Science Center, introduced species, Johnson{\textquoteright}s Slough (Yaquina), Makah Bay (Wa.), Nehalem Bay, Netarts Bay, North of Nevor Shellfish (Netarts), Oregon Coast Aquarium mudflat, Pacific Decadal Oscillation, population count, Sally{\textquoteright}s Bend, Tillamook Bay, Whiskey Creek Salmon Hatchery, Willapa Bay (Wa.), Yaquina Bay}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/rx913w156 }, author = {Yamada, Sylvia Behrens and Yednock, Bree and Indivero, Julia and Geierman, Christina and Prickett, Joel A. and Randall, Andrea and Akmajian, Adrianne} } @article {34531, title = {An introduced Asian parasite threatens northeastern Pacific estuarine ecosystems}, journal = {Biological Invasions}, volume = {14}, year = {2012}, note = {The non-indigenous isopod Orthione griffenis effectively castrates the mud shrimp Upogebia. The spread of the invasive parasite has dramatically depleted mud shrimp populations along the northwestern coast of North America. "All previously known abundant Upogebia populations were either absent or at greatly reduced abundances in all California, Oregon and Washington estuaries examined." (p.1225) "[U]rgent, immediate responses, including captive breeding programs for the most impacted Upogebia populations and species are warranted." (p.1234)}, pages = {p.1221-1236}, keywords = {Alsea Bay, bioturbation, Coos Bay, depleted populations, invasive species, Mud shrimp = Upogebia pugettensis, Netarts Bay, Orthione griffenis, parasites, Sand Lake, Siletz Bay, Tillamook Bay, Yaquina Bay}, doi = {10.1007/s10530-011-0151-3}, url = {https://ir.library.oregonstate.edu/concern/articles/nc580n174}, author = {Chapman, John W. and Dumbauld, Brett R. and Itani, Gyo and Markham, John C.} } @article {13776, title = {Recovery of wild salmonids in Western Oregon lowlands}, volume = {no.2002-1}, year = {2002}, note = {Focus on lower rivers and estuaries. Good summaries of states of streams. Appendix B gives stream miles that meet EPA 303(d) water quality standards.}, pages = {169 p.}, institution = {Independent Multidisciplinary Science Team,}, address = {Salem, Or.}, keywords = {estuaries, habitat restoration, human impacts, Oncorhynchus spp., salmon}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/7d278t113}, author = {Independent Multidisciplinary Science Team, and Buckhouse, John and Elmore, Wayne and Gregory, Stanley and Kavanagh, Kathleen and Pearcy, William G. and Schreck, Carl B.} } @article {13896, title = {Pinniped and seabird predation: Implications for recovery of threatened stocks of salmonids in Oregon under the Oregon Plan for Salmon and Watersheds}, number = {1988-2}, year = {1998}, note = {General information. Does mention harbor seal predation on chum salmon in Netarts Bay.}, month = {1998}, pages = {28}, institution = {Governor{\textquoteright}s Natural Resource Office}, address = {Salem, OR}, abstract = {The Independent Multidisciplinary Science Team (IMST) was directed to evaluate the extent of predatory impacts of marine mammals and seabirds on salmonids and to recommend actions to mitigate impacts. IMST focused on the Oregon Department of Fisheries and Wildlife Action Plans because they provide the programmatic direction for the State of Oregon in the context of the Oregon Plan for Salmon and Watersheds (Oregon Plan). Marine mammals and seabirds have been considered detrimental to salmon production for a long time, and extensive control programs are part of the history of salmon management. Unfortunately Oregon have not invested in enough research to accurately define the dimensions of the problem. Uncertainty regarding predators of salmonids by pinnipeds and birds is expressed in five science questions addressed in the report. IMST concludes that California sea lion, Pacific harbor seal, Caspian tern and cormorant populations along the Oregon coast have all increased in recent years, coinciding with historical lows in salmonid abundance. Predation by these species may be a factor in the lack of recoveries of some depressed salmonid stocks but there is no compelling scientific evidence that predation has been a primary cause for recent decline of salmonids. No comprehensive studies have been conducted to evaluate the importance of predation on escapement of wild stocks relative to other factors.}, keywords = {birds, marine mammals, salmon}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/j9602070t} } @article {13901, title = {Tidal marsh stratigraphy, sea-level change and large earthquakes-II: submergence events during the last 3500 years at Netarts Bay, Oregon, USA}, volume = {17}, number = {no.4}, year = {1998}, note = {Investigates "peat-mud couplets" - alternating layers of peat and mud. Finds three peat-mud couplets showing gradual sedimentation changes and four couplets showing rapid subsidence indicative of large earthquakes on the Cascadia subduction zone. Examines hypotheses regarding the details of these cycles.}, month = {1998}, pages = {p.365-393}, abstract = {This is the second investigation where we apply the methods and scientific framework common to sea-level investigations in northwest Europe to test a model of coseismic land subsidence followed by land uplift during interseismic strain accumulation, used to explain alternating peat-mud couplets of late Holocene age found in many of the estuaries of the Pacific Northwest of the USA and Canada. Recent studies in this region interpret such couplets as the product of repeated large (magnitude 8 or 9) earthquakes on the Cascadia subduction zone. Stratigraphic investigations of the intertidal sediments at Netarts Bay, Oregon, using lithological, pollen and diatom analyses reveal different types of submergence associated with peat-mud couplets during the last 3500yr. Three peat-mud couplets record gradual sedimentation changes within an infilling body of water. Four other couplets record rapid submergence, burial of tidal marshes and their replacement by low marsh environments. In three of the events rapid submergence is small, 0-0.5m. The most recent marsh submergence event, around AD 1700, was 0.4+/-0.3m. Most of the buried peats contain microfossil evidence for a gradual increase in marine influence before the rapid change from organic to minerogenic sedimentation. Similar gradual changes are common in comparable pale environments on non-seismic coasts and are strong evidence against a simple interseismic strain accumulation-coseismic subsidence model. One hypothesis is that the gradual increase in marine influence before each submergence represents pre-seismic relative sea-level rise caused by a reduction in the rate of land uplift. The microfossil analyses provide evidence of three stages within an earthquake deformation cycle: coseismic subsidence; interseismic land uplift; and pre-seismic reduction in the rate of land uplift. At present the microfossil data do not differentiate between rapid post-seismic land uplift and rapid sedimentation.}, keywords = {coastal hazards, geology, tsunamis}, author = {Shennan, I. and Long, A. and Rutherford, M. M. and Innes, J.B. and Green, F.M. and Walker, K.J.} }