Article
Fisheries
Jason C. Leppi, Jeffrey A. Falke, Daniel J. Rinella, Mark S. Wipfli, Andrew C. Seitz, Matthew S. Whitman
Summary: This study examines the influence of geomorphology on stream channel attributes and assesses Broad Whitefish spawning habitat potential in the Colville River. The results show that the majority of high IP habitat is located in braided sections of the main channel, but it only accounts for 2% of the total channel network. The study also suggests that factors such as hyporheic flow may influence spawning habitat selection.
ECOLOGY OF FRESHWATER FISH
(2022)
Article
Environmental Sciences
Kevin M. Fraley, Carolyn R. Hamman, Trent M. Sutton, Martin D. Robards, Tahzay Jones, Alex Whiting
Summary: This study assessed the concentrations of PFAS and mercury in fish species from the nearshore areas of Arctic Alaska. Low levels of PFAS compounds were found in certain fish species, but these levels were below the threshold triggering fish consumption guidelines. There was no evidence of PFAS or mercury exposure to people who harvest these fish species.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Jason C. S. Leppi, Daniel J. Rinella, Mark S. Wipfli, Matthew S. Whitman
Summary: Understanding the ecological niche and habitat use of Broad Whitefish is important for preserving its population stability in Arctic landscapes. Stable isotope analysis revealed that Broad Whitefish utilize a broad range of food resources and habitats, including marine and freshwater habitats. Protecting these diverse habitats is crucial for the long-term conservation of this species.
Article
Psychology, Multidisciplinary
Fengyu Wu
Summary: In Arctic Alaska, the indigenous population's high life satisfaction is not due to wage employment brought by modernization, but rather their involvement in non-wage subsistence activities and traditional activities. A combination of Christian religious beliefs and indigenous spiritual beliefs also positively influences their life satisfaction.
JOURNAL OF HAPPINESS STUDIES
(2021)
Article
Multidisciplinary Sciences
Jason C. Leppi, Daniel J. Rinella, Mark S. Wipfli, Randy J. Brown, Karen J. Spaleta, Matthew S. Whitman
Summary: The study used Sr isotope otolith microchemistry to reconstruct the movements and habitat use of Broad Whitefish throughout their lives. It identified at least six life history types, with the majority being anadromous. The findings provide guidance for the conservation of this important resource.
Article
Ecology
Kristen M. Green, Anne H. Beaudreau, Maija H. Lukin, Larry B. Crowder
Summary: As temperatures warm, human access routes to coastal subsistence resources are changing in Arctic regions. Climate stressors such as sea ice retreat and coastal erosion have a significant impact on harvest access, leading to potential adaptations like increased reliance on technology and social networks. Indigenous communities demonstrate stewardship and sovereignty as key factors for resilience in a rapidly changing environment.
ECOLOGY AND SOCIETY
(2021)
Article
Geosciences, Multidisciplinary
Jinyu Zhang, Peter Flaig, Marwan Wartes, Jennifer Aschoff, Mark Shuster
Summary: The study developed a methodology that integrates stratigraphic forward modelling and inversion analysis to identify sediment source areas, which was tested on deposits of the Colville Basin in northern Alaska. The results show that Cretaceous sediments in the Colville Basin were mainly sourced from the Herald Arch, Chukchi Platform, and western Brooks Range Orogenic Belt, in line with previous provenance studies.
Article
Fisheries
Jason C. Leppi, Daniel J. Rinella, Mark S. Wipfli, Anna K. Liljedahl, Andrew C. Seitz, Jeffrey A. Falke
Summary: This study investigates the indirect effects of climate change on Arctic freshwater ecosystems and fish populations using the Whitefish as an indicator species. Climate change is expected to alter hydrology and habitat suitability, which will affect fish foraging and behavioral ecology. Management and conservation approaches focused on preserving habitat heterogeneity and genetic diversity will help maintain the resilience of the Whitefish and other important subsistence fisheries.
Article
Biodiversity Conservation
Kevin M. Fraley, Martin D. Robards, Matthew C. Rogers, Johanna Vollenweider, Beatrice Smith, Alex Whiting, Tahzay Jones
Summary: The study revealed that freshwater input and ocean connectivity in Arctic coastal lagoons are important drivers of fish trophic ecology, and should be carefully monitored in the face of anticipated changes to conserve important subsistence harvest species.
Article
Oceanography
Judith Rosellon-Druker, Marysia Szymkowiak, Kerim Y. Aydin, Curry J. Cunningham, Emily A. Fergusson, Stephen Kasperski, Gordon H. Kruse, Jamal H. Moss, Melissa Rhodes-Reese, Kalei S. Shotwell, Ellen Spooner, Ellen M. Yasumiishi
Summary: This study in the Gulf of Alaska utilized an integrated ecosystem assessment framework to develop a conceptual model in collaboration with stakeholders from the Sitka fishing community. Through simulations of various biophysical scenarios, the study examined the relationship between ecological and human dimension factors affecting the abundance of sablefish.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2021)
Article
Fisheries
Mary C. Spanos, Curry J. Cunningham, Katie A. Drew, Trent M. Sutton
Summary: This study evaluated the effects of different types of tags on Arctic Lampreys and found that T-bar anchor tags and internal radio tags are acceptable for short-term and long-term studies as long as the tag burden is controlled within a specific range.
NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
(2023)
