Demographic changes in Chinook salmon across the Northeast Pacific Ocean

J Ohlberger, EJ Ward, DE Schindler… - Fish and Fisheries, 2018‏ - Wiley Online Library
The demographic structure of populations is affected by life history strategies and how these
interact with natural and anthropogenic factors such as exploitation, climate change, and …

Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon

BE Chasco, IC Kaplan, AC Thomas… - Scientific reports, 2017‏ - nature.com
Many marine mammal predators, particularly pinnipeds, have increased in abundance in
recent decades, generating new challenges for balancing human uses with recovery goals …

Survival of the fattest: linking body condition to prey availability and survivorship of killer whales

JD Stewart, JW Durban, H Fearnbach… - …, 2021‏ - Wiley Online Library
Recovering small, endangered populations is challenging, especially if the drivers of
declines are not well understood. While infrequent births and deaths may be important to the …

The combined effects of predation, fishing, and ocean productivity on salmon species targeted by marine mammals in the northeast Pacific

F Couture, V Christensen, C Walters - PloS One, 2024‏ - journals.plos.org
Along the northeast Pacific coast, the salmon-eating southern resident killer whale
population (SRKW, Orcinus orca) have been at very low levels since the 1970s. Previous …

Challenges in the identification and interpretation of phenological shifts: anthropogenic influences on adult migration timing in salmonids

MD Tillotson, MC Arostegui, CS Austin… - Reviews in Fisheries …, 2021‏ - Taylor & Francis
Migration timing has evolved in many animals, allowing them to maximize breeding and
feeding success by matching seasonal changes in abiotic conditions and resource pulses …

Wild Chinook salmon productivity is negatively related to seal density and not related to hatchery releases in the Pacific Northwest

BW Nelson, CJ Walters, AW Trites… - Canadian Journal of …, 2019‏ - cdnsciencepub.com
Predation risk and competition among conspecifics significantly affect survival of juvenile
salmon, but are rarely incorporated into models that predict recruitment in salmon …

[HTML][HTML] Behavioural responses of wild Pacific salmon and herring to boat noise

I van der Knaap, E Ashe, D Hannay, AG Bergman… - Marine Pollution …, 2022‏ - Elsevier
There is growing concern about impacts of ship and small boat noise on marine wildlife. Few
studies have quantified impacts of anthropogenic noise on ecologically, economically, and …

Defining ecosystem thresholds for human activities and environmental pressures in the California Current

JF Samhouri, KS Andrews, G Fay, CJ Harvey… - …, 2017‏ - Wiley Online Library
The oceans are changing more rapidly than ever before. Unprecedented climatic variability
is interacting with unmistakable long‐term trends, all against a backdrop of intensifying …

Pop-up satellite archival tags reveal evidence of intense predation on large immature Chinook salmon (Oncorhynchus tshawytscha) in the North Pacific Ocean

AC Seitz, MB Courtney, MD Evans… - Canadian Journal of …, 2019‏ - cdnsciencepub.com
Throughout the northern extent of its range, Chinook salmon (Oncorhynchus tshawytscha)
adult returns have been in decline for over a decade, leading to severe harvest restrictions …

Changing salmon: an analysis of body mass, abundance, survival, and productivity trends across 45 years in Puget Sound

JP Losee, NW Kendall, A Dufault - Fish and Fisheries, 2019‏ - Wiley Online Library
Pacific salmon and trout (Oncorhynchus spp., Salmonidae) of the Puget Sound region of
Washington State, USA, have experienced recent and longer‐term (multidecadal) variability …