@article {83222, title = {Coherence among Oregon Coast coho salmon populations highlights increasing relative importance of marine conditions for productivity}, journal = {Fisheries Oceanography}, volume = {32}, number = {3}, year = {2023}, note = {Anadromous fish like salmon have to live in two worlds: freshwater and the ocean. The scales of these two worlds are quite different: the freshwater environment works at the scale of a single stream, and environmental changes or stressors at the stream level affect a single population of fishes. On the other hand, oceanic changes or stressors cam affect broad regions or entire evolutionary significant units. By analyzing stock recruitment data for about sixty years along the Oregon Coast, some patterns become clear. Over this period, there have been significant changes in how fisheries are managed, from riparian buffers in forested lands to adding large woody debris to denuded streams. Despite these changes, it seems that oceanic conditions, especially the North Pacific Gyre Oscillation, which has dominated the marine environment since 1990, are determining population levels, rather than conservation efforts at the stream level. {\textquotedblleft}If Oregon Coast coho salmon populations become more synchronous, managers can expect to face new challenges driven by reductions in the population portfolio effect and increasingly variable marine conditions due to climate change{\textquotedblright} (from the Abstract).}, month = {2023,, May}, pages = {p.293-310}, keywords = {Alsea River, Beaver Creek, climate, Coho salmon = Oncorhynchus kisutch, ecosystem health, mathematical modeling, North Pacific Gyre Oscillation, Oregon Coast, Pacific Decadal Oscillation, population biology, Productivity, Salmon River Estuary, Siletz River, Siuslaw River, Umpqua River, Yaquina River}, doi = {https://doi.org/10.1111/fog.12630 }, author = {Davis, Melanie J. and Anthony, James and Ward, Eric J. and Firman, Julie and Lorion, Christopher} } @article {83147, title = {Status of the European Green Crab, Carcinus maenas, (aka 5-spine crab) in Oregon Estuaries. Report for 2022}, year = {2023}, 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. Since 2015, however, {\textquotedblleft}recruitment has been good every year. Since green crabs live for 6 years, these recent strong year classes can produce larvae until 2027. . . Now that populations in Oregon, Washington and British Columbia have built up, we have evidence for local production and for larvae sources from a genetically distinct population on Vancouver Island. . .{\textquotedblright} (from the Executive Summary) }, pages = {30 p.}, institution = {Pacific States Marine Fisheries Commission. Aquatic Nuisance Species Project}, address = {Portland, Or.}, keywords = {aquatic invertebrates, Coos Bay, crustaceans, El Nino, European green crab = Carcinus maenas, Grays Harbor (Wa.), introduced species, Netarts Bay, Pacific Decadal Oscillation, population count, Salmon River, Siuslaw River, Tillamook Bay, Umpqua River estuary, Willapa Bay (Wa.), Yaquina Bay}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/73666d40c}, author = {Yamada, Sylvia Behrens and Royer, Cameron and Schooler, Shon and Flitcroft, Rebecca and Vance, Mitch and Randall, Andrea and Fisher, Jennifer} } @article {83146, title = {Status of the European Green Crab, Carcinus maenas, in Oregon and Washington Coastal Estuaries. Report for 2020 and 2021}, year = {2022}, note = {The COVID-19 pandemic affected this report, leading to combined years and trapping on a reduced number of estuaries. 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. Since 2015, however, {\textquotedblleft}recruitment has been good every year. Since green crabs live for 6 years, these recent strong year classes can produce larvae until 2027. . . Now that populations in Oregon, Washington and British Columbia have built up, we have evidence for local production and for larvae sources from a genetically distinct population on Vancouver Island. . .{\textquotedblright} (from the Executive Summary) This report is accompanied by a dataset, available at: https://ir.library.oregonstate.edu/concern/datasets/b8515w17z }, pages = {27 p.}, institution = {Pacific States Marine Fisheries Commission. Aquatic Nuisance Species Project}, address = {Portland, Or.}, keywords = {aquatic invertebrates, Coos Bay, crustaceans, El Nino, European green crab = Carcinus maenas, Grays Harbor (Wa.), introduced species, Netarts Bay, Pacific Decadal Oscillation, population count, Tillamook Bay, Willapa Bay (Wa.), Yaquina Bay}, url = {https://ir.library.oregonstate.edu/concern/technical_reports/g445cn70c }, author = {Yamada, Sylvia Behrens and Royer, Cameron and Schooler, Shon and Fisher, Jennifer and Randall, Andrea and Buffington, Chelsey and Stote, Alex and Akmajian, Adrianne} } @article {83115, title = {Relationship between ocean ecosystem indicators and year class strength of the invasive European green crab (Carcinus maenas)}, journal = {Progress in Oceanography}, volume = {196}, number = {102618}, year = {2021}, note = {The link between invasive European green crab populations on the American west coast and warm oceanic conditions is well established. This article closely examines the link between ocean climate and these crab populations and probes aspects of this population{\textquoteright}s increase.}, month = {2021, Aug.}, pages = {8 p.}, keywords = {California Current, Coos Bay, Davidson current, El Nino, European green crab = Carcinus maenas, Grays Harbor, introduced species, mathematical modeling, Netarts Bay, Pacific Decadal Oscillation, population biology, Tillamook Bay, water temperature, Willapa Bay, Yaquina Bay}, doi = {https://doi.org/10.1016/j.pocean.2021.102618 }, author = {Yamada, Sylvia Behrens and Fisher, Jennifer L. and Kosro, P. Michael} } @mastersthesis {83154, title = {Ecosystem Functions of Pacific Northwest Estuaries: The Role of Ocean and Watershed Drivers in Eelgrass and Coho Salmon Dynamics}, year = {2020}, note = {This wide-ranging doctoral dissertation aims to {\textquotedblleft}investigate ocean and watershed dynamics to better understand the key drivers and consequences of ecosystem change in Pacific Northwest (PNW) estuaries{\textquotedblright} (from the Abstract). Topics explored include eelgrass and macroalgae, coho salmon and the Dungeness crab catch. }, pages = {274 p.}, school = {Oregon State University}, type = {Doctoral Dissertation}, edition = {Ph. D.}, chapter = {Dept. of Integrative Biology}, address = {Corvallis, Or.}, keywords = {Alsea Bay, Beaver Creek, carbon dioxide, climate, Coho salmon = Oncorhynchus kisutch, Coos Bay, dissolved oxygen, Dungeness crab = Metacarcinus magister (Cancer magister), eelgrass = Zostera marina, El Nino, Oregon Coast, Pacific Decadal Oscillation, pH, phosphate, precipitation, salinity, sea lettuce = Ulva spp., Siletz Bay, Siuslaw River estuary, Umpqua River, upwelling, water temperature, Yaquina Bay}, url = {https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/gt54kv37z }, author = {Magel, Caitlin L.} } @article {83179, title = {Fine-scale spatial and temporal genomic variation among Dungeness crab Cancer magister larval recruits in the California Current Ecosystem}, journal = {Marine Ecology Progress Series}, volume = {649}, year = {2020}, note = {{\textquotedblleft}Dynamic marine environments can shape complex spatial and temporal patterns in the population connectivity of marine species, and this is often exemplified in species with long larval phases. Here, we used a genotyping-by-sequencing (GBS) approach to examine fine-scale spatial and temporal genomic variation among Dungeness crab Cancer magister larval recruits sampled in the California Current Ecosystem. . . Overall, our findings provide evidence for high connectivity within Dungeness crab, but suggest that selective pressures and ocean conditions influence the genetic composition of larval recruits both intra- and inter-annually{\textquotedblright} (from the Abstract). This publication was re-printed online in the Sea Grant reprint series as ORESU-R-20-010.}, month = {2020}, pages = {p.67-81}, keywords = {aquatic invertebrates, California Current Ecosystem, Coos Bay, crustaceans, Dungeness crab = Metacarcinus magister (Cancer magister), genetics, larvae, Pacific Decadal Oscillation, population biology, Yaquina Bay}, doi = {https://doi.org/10.3354/meps13453 }, url = {https://ir.library.oregonstate.edu/concern/articles/8910k215z}, author = {Lee, Elizabeth M. J. and O{\textquoteright}Malley, Kathleen G.} } @article {83113, title = {Temporal and habitat differences in the juvenile demersal fish community at a marine-dominated northeast Pacific estuary}, journal = {Fisheries Research}, volume = {227}, number = {105557}, year = {2020}, note = {Estuaries provide habitat for many juvenile marine fishes. A lack of systematic studies of fish communities in estuaries has hampered our understanding of estuaries{\textquoteright} roles in the early life histories of many marine fish. In this article, the authors compare the community structure of juvenile fishes in the Yaquina Estuary for 2008-2009, 2012-2013 and 2016-2017. Sampling took place around docks and eelgrass beds. {\textquotedblleft}Greater abundances and reduced change in communities over time at eelgrass sites suggests that maintaining these habitats is potentially critical for many estuary-rearing species and temporal changes in these communities highlights the importance of long-term monitoring.{\textquotedblright} (from the Abstract)}, month = {2020, Jul.}, pages = {11 p.}, keywords = {community ecology, eelgrass = Zostera marina, habitats, juvenile fishes, Pacific Decadal Oscillation, Pacific staghorn sculpin = Leptocottus armatus, Rockfish = Sebastes spp., Saddleback gunnel = Pholis ornata, salinity, temporal distribution, upwelling, water temperature, Yaquina Bay}, doi = {https://doi.org/10.1016/j.fishres.2020.105557 }, author = {Schwartzkopf, Brittany D. and Whitman, Alison D. and Lindsley, Amy J. and Heppell, Scott A.} } @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 {80451, title = {Trends in the Pacific herring (Clupea pallasii) metapopulation in the California Current Ecosystem}, journal = {California Cooperative Oceanic Fisheries Investigations, Progress Report}, volume = {58}, year = {2017}, note = {This paper examines population trends for Pacific herring on the West Coast. The authors find that overall populations have been declining since the 1980s, although there are areas such as Yaquina Bay that have not seen large declines. The data hints at cyclic fluctuations in population, but more study is needed. {\textquotedblleft}We do not understand the drivers of changes occurring in the herring metapopulation, nor have the consequences to upper trophic levels in this marine ecosystem been investigated comprehensively. Expansion of current monitoring and new directed research on relationships between herring and the environment and higher level consumers is therefore warranted and essential.{\textquotedblright} (p.11)}, pages = {p.1-18}, keywords = {abundance, climate, depleted populations, geographic distribution, Pacific Decadal Oscillation, Pacific herring = Clupea pallasii, population biology, statistical analysis, Yaquina Bay}, url = {https://calcofi.com/publications/calcofireports/v58/Vol58-Thompson_pages_77-94.pdf}, author = {Thompson, Sarah Ann and Sydeman, William J. and Thayer, Julie A. and Weinstein, Anna and Krieger, Katherine L. and Hay, Doug} } @article {76696, title = {Environmental drivers and reproductive consequences of variation in the diet of a marine predator}, journal = {Journal of Marine Systems }, volume = {146 }, year = {2015}, note = {{\textquotedblleft}Ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects of ocean state propagating to higher trophic levels. In many regions throughout their range, common murre (Uria aalge) exhibit narrow dietary breadth in feeding chicks and therefore are vulnerable to recruitment failures of dominant prey species during the breeding season. Contrastingly, common murres nesting in the northern California Current off Oregon, exhibit high species diversity and variability in dominant prey consumed. We studied the diets of common murres over 10 years between 1998 and 2011, a period in which the northern California Current experienced dramatic interannual variability in ocean conditions. Likewise, murre diets off Oregon varied considerably. Interannual variation in murre chick diets was influenced by environmental drivers occurring before and during the breeding season, and at both basin and local scales.{\textquotedblright} (from the Abstract)}, month = {2015}, pages = {p.72{\textendash}81}, keywords = {climate, common murre = Uria aalge, diet, El Nino, fecundity, La Nina, nutrition, Pacific Decadal Oscillation, Pacific herring = Clupea pallasii, Pacific sand lance = Ammodytes hexapterus, predation, Surf smelt = Hypomesus pretiosis, Whitebait smelt = Allosmerus elongates, Yaquina Head}, doi = {10.1016/j.jmarsys.2014.06.015}, author = {Gladics, Amanda J. and Suryan, Robert M. and Parrish, Julia K. and Horton, Cheryl A. and Daly, Elizabeth A. and Peterson, William T.} }