Results 161 to 170 of about 1,077,518 (293)

Mesohabitat Evaluation Reveals Variable Abundances and Habitat Choice in Juvenile Atlantic Salmon Across Diverse Habitats in the Main Stem of a Large Sub‐Arctic River

open access: yesEcology of Freshwater Fish, Volume 34, Issue 3, July 2025.
ABSTRACT Large main stem rivers typically provide a variety of mesohabitat types, but their abundance, distribution and role in providing habitat for juvenile salmonids have rarely been analysed. The quantity of meso‐scale habitats and their juvenile Atlantic salmon abundance was surveyed in the large sub‐arctic River Teno in northernmost Fennoscandia.
Tuomas Metsäniemi   +5 more
wiley   +1 more source

Niche Partitioning Among Three Apex Piscivorous Fishes: Evidence of Limited Intraguild Predation

open access: yesEcology of Freshwater Fish, Volume 34, Issue 3, July 2025.
ABSTRACT This study aimed to understand the ecological relationship among burbot Lota lota, brown trout Salmo trutta and lake trout Salvelinus namaycush, with a focus on burbot, a species of greatest conservation need in Wyoming. While we hypothesised a reciprocal intraguild predation dynamic, where competition and predation occur between predators ...
Robert W. Eckelbecker   +5 more
wiley   +1 more source

Body Size and Thermal Sensitivity of a Facultative Air‐Breathing Fish Amidst Environmental Change

open access: yesEcology of Freshwater Fish, Volume 34, Issue 3, July 2025.
ABSTRACT Many freshwater fish populations are increasingly required to respond to warming waters and low dissolved oxygen concentrations as a result of land‐use change and climate change. In addition, the average size of fish in harvested populations can be drastically reduced due to heavy fishing pressure.
Erin K. Francispillai, Lauren J. Chapman
wiley   +1 more source

Dispersal and Gene Flow Among Potential Spawners: Source–Sink Structure Among Populations of Anadromous Brown Trout Exposed to Multifaceted Anthropogenic Impacts

open access: yesEvolutionary Applications, Volume 18, Issue 7, July 2025.
ABSTRACT Dispersal impacts individual fitness and influences local dynamics, stability and adaptation in interconnected populations. Anadromous salmonid fishes are renowned for their precise homing and adaptations to local aquatic environments, while navigating between multiple connected habitats.
K. L. Hawley   +5 more
wiley   +1 more source

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