Results 41 to 50 of about 1,219,933 (167)

Spatial patterns in prey relative abundance suggest top‐down effects at juvenile white shark aggregation sites

Ecosphere, Volume 17, Issue 10, October 2026.
Abstract Predators regulate prey populations across ecosystems, driving heterogeneity in prey distribution through both direct consumption and indirect “fear” effects. Such effects generally demonstrate a positive relationship with predator density and length of exposure to predation. Juvenile white sharks (Carcharodon carcharias; JWS) are a generalist
Zachariah S. Merson, Elizabeth E. Jahn, Matthew A. Barnes, Emily A. Spurgeon, Patrick T. Rex, Jack T. Elstner, Yamilla N. Samara Chacon, James M. Anderson, Whitney D. Jones, Christopher G. Lowe   +9 more
wiley   +1 more source

Invasive mammals disrupt sea–land nutrient inputs over 169 years on subtropical oceanic islands

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Invasive mammals have severely impacted oceanic islands, reducing or extirpating seabird populations and driving the collapse of nutrient flows with lasting ecosystem effects. We investigated these dynamics on contrasting subtropical oceanic islands in the South Pacific: Rangitāhua, a large island where goats, cats, and rats caused the ...
M. J. Rayner, M. F. de A. Klemm, W. A. Nelson, S. J. Bury, D. J. Hawke, M. A. Sewell, C. J. West, K. E. Morman, L. A. Walker, K. Neill, J. D. Aguirre, Y. Baba, J. R. Beggs, C. A. J. Duffy, J. Galbraith, C. P. Gaskin, T. Hvid, M. Kirk, L. Liggins, E. I. McGuigan, K. Walton, T. Trnski, E. A. Whitehead, P. J. Bellingham   +23 more
wiley   +1 more source

Extent of microplastics in Pacific Sand Lance burying habitat in the Salish Sea [PDF]

, 2018
Extent of microplastics in Pacific Sand Lance burying habitat in the Salish Sea Willem Peters MRM candidate Simon Fraser University, Dr. Cliff Robinson Department of Fisheries and Oceans, Dr. Karen Kohfeld Simon Fraser University, Dr.
Peters, Willem, Robinson, Cliff, Bertram, Douglas, Kohfeld, Karen, Pellatt, Marlow   +4 more
core  

Cost‐Effective Quantitative PCR Assays for the eDNA‐Based Detection of Three Sympatric Salmon Species

Environmental DNA, Volume 8, Issue 5, September‐October 2026.
We developed species‐specific dye‐based qPCR assays for three sympatric Northeast Asian salmonids (Oncorhynchus keta, O. masou, O. gorbuscha). After validating primer specificity, we used field eDNA to map their spatiotemporal distributions, offering cost‐effective, reliable tools for salmon conservation management.
Si‐Yu Zhang, Ziyuan Sun, Mi Wang, Xuwang Yin, Meng Yao   +4 more
wiley   +1 more source

Characterizing Pacific sand lance habitat in the San Juan channel sand wave field [PDF]

, 2012
In the pelagic zone Ammodytes hexapterus or the Pacific Sand lance (PSL) act as an important link in the food web feeding on planktons and being preyed on by a wide variety of higher trophic level predators (Martin et al., 1999). The San Juan Archipelago
Thomson, Annie
core  

Microplastics in Nearshore and Subtidal Sediments in the Salish Sea: Implications for Marine Habitats and Exposure

Journal of Marine Science and Engineering
Plastic debris is a pervasive and persistent threat to marine ecosystems. Microplastics (plastics < 5 mm) are increasing in a variety of marine habitats, including open water systems, shorelines, and benthic sediments.
Frances K. Eshom-Arzadon, Kaitlyn Conway, Julie Masura, Matthew R. Baker   +3 more
doaj   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

Wildlife Society Bulletin, Volume 50, Issue 3, September 2026.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling, Molly C. McDevitt, Jonathan J. Felis, William Crisci, Zachary Pohlen, Ryan Ongtowasruk, Daniel L. Perret, Paul M. Lukacs, James A. Johnson, Metrona Mazonna   +9 more
wiley   +1 more source

Spatiotemporal variation in Pacific sand lance (Ammodytes hexpaterus) abundance and demographics in the San Juan Channel [PDF]

, 2014
Fish feeding behavior, abundance, and population demographics depend on a number of environmental and non-environmental factors. Some fish, such as salmonids, display cyclic population structures and year class strength that are independent of their ...
Graham, Olivia J.
core  

Impacts of Ocean Acidification on Reproduction and Early Life Development in Marine Teleost Fish—A Synthesis

Fish and Fisheries, Volume 27, Issue 5, Page 1176-1192, September 2026.
ABSTRACT Ocean acidification (OA) remains a major and underexplored threat to marine fishes, particularly regarding reproductive physiology and early life stages (ELS). Although research over the past 15 years has documented diverse OA effects, substantial knowledge gaps persist.
Rebecca J. Bridge, Benjamin T. McClelland, Silvana N. R. Birchenough, Martina H. Stiasny   +3 more
wiley   +1 more source

Use of Invasive Rugulopteryx okamurae Beach Wrack as Habitat and Food by Talitrus saltator

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 8, August 2026.
ABSTRACT The introduction of non‐native algae into coastal waters has increased worldwide, causing a range of ecological and socio‐economic impacts. However, when stranded on beaches as wrack, these invasive algae can provide refuge and food for supralittoral organisms, potentially benefiting local fauna communities and beach functioning. In this study,
Leonardo Cruz da Rosa, María José Reyes‐Martínez, Triana Revanales, Iván Franco Rodil   +3 more
wiley   +1 more source