Results 91 to 100 of about 29,195 (221)

Epidemiology of Salmonid Rickettsial Septicemia (SRS) in Farmed Salmon: The Role of Sea Lice Infestations in Mortality Risk

Journal of Fish Diseases, EarlyView.
ABSTRACT Piscirickettsia salmonis , the causal agent of salmonid rickettsial septicemia (SRS), is the main pathogen affecting farmed salmonids in Chile. Outbreaks of SRS lead to substantial economic losses for producers. Many determinants related to SRS outcomes are still poorly understood.
Benjamín Diethelm‐Varela, Nicolhole Atero, Francisca Córdova‐Bührle, Enrico L. Rezende, Stefan Gelcich, Osvaldo Sandoval, Carlos Navarro, Fernando O. Mardones   +7 more
wiley   +1 more source

Hydroelectric Dams and the Decline of Chinook Salmon in the Columbia River Basin [PDF]

The decline of chinook salmon runs into the mouth of the Columbia River in recent decades is thought to be partly attributable to the construction of hydroelectric dams. The purpose of this article is to estimate the magnitude of losses in chinook salmon
Booth, Douglas E.
core   +1 more source

Electrical phase angle as a new method to measure fish condition [PDF]

, 2009
In this study, phase angle (the ratio of resistance and reactance of tissue to applied electrical current) is presented as a possible new method to measure fish condition.
Cox, Keith W., Heintz, Ron
core  

First Report of the Malacosporean Parasite Tetracapsuloides bryosalmonae in the Faroe Islands Reveals Widespread Distribution and High Prevalence in Brown Trout

Journal of Fish Diseases, EarlyView.
ABSTRACT The myxozoan endoparasite Tetracapsuloides bryosalmonae (Tb), the causative agent of proliferative kidney disease (PKD) in salmonids, has predominantly been reported in temperate regions of continental Europe and North America. Here, we present the first record of Tb in the Faroe Islands, extending the known northern distribution of the ...
Magnus Lauringson, Lilian Pukk, Leivur Janus Hansen, Anti Vasemägi   +3 more
wiley   +1 more source

Piscirickettsiosis in Farmed Turbot, Scophthalmus maximus

Journal of Fish Diseases, EarlyView.
ABSTRACT Piscirickettsia salmonis is a well‐established intracellular pathogen of farmed Atlantic salmon around the world. The bacterium has also been detected from a number of other hosts including lumpfish (Cyclopterus lumpus), seabass (Dicentrarchus labrax) and rainbow trout (Oncorhynchus mykiss).
Hanne K. Nilsen, Magne Kjerulf Hansen, Raoul Kuiper, Jan Inge Øvrebø, Kjersti Sturød, Maryam Saghafian, Snorre Gulla, Anne Berit Olsen, Duncan J. Colquhoun, Ole Bendik Dale   +9 more
wiley   +1 more source

Production of single-domain magnetite throughout life by sockeye salmon, Oncorhynchus nerka [PDF]

, 1988
Although single-domain particles of biogenic magnetite have been found in different species of pelagic fishes, nothing is known about when it is synthesized, or about whether the time during life when it is produced is correlated with the development of
Groot, Cornelis, Kirschvink, Joseph L., Quinn, Thomas P., Walker, Michael M.   +3 more
core   +1 more source

Adaptive Capacity of Freshwater Organisms in North America: Current Understanding and Future Applications

Global Change Biology Communications, Volume 1, Issue 2, June 2026.
This paper tailors adaptive capacity understanding for North American freshwater fishes, mussels, and crayfishes by integrating trait‐based approaches to provide practical guidance for improving management and conservation decisions under global change.
H. S. Embke, K. M. Alofs, D. O. Bunnell, C. Caudill, C. Chu, C. Dunn, K. Fogelman, S. Gardner, T. Hook, S. Jackson, M. Keefer, S. Koenigbauer, O. LeDee, S. Ludsin, A. J. Lynch, B. Myers, E. Nyboer, T. Seaborn, C. Suski, L. Thurman, A. Walters, J. Westhoff   +21 more
wiley   +1 more source

The geographic basis for population structure in Fraser River chinook salmon (Oncorhynchus tshawytscha) [PDF]

, 2003
We surveyed variation at 13 microsatellite loci in approximately 7400 chinook salmon sampled from 52 spawning sites in the Fraser River drainage during 1988–98 to examine the spatial and temporal basis of population structure in the watershed ...
Beacham, Terry D., Candy, John R., Deagle, Bruce, Irvine, James R., Labaree, Karen, Miller, Kristina M., Nelson, R. John, Supernault, K. Janine, Wetklo, Michael, Withler, Ruth E.   +9 more
core  

Compound‐Specific Stable Isotope Analysis Reveals Population‐Specific Differences in Chinook Salmon Trophic Level and Basal Resource Use in the Northeast Pacific

Fisheries Oceanography, Volume 35, Issue 3, Page 397-412, May 2026.
ABSTRACT Chinook salmon exhibit far‐flung and disparate population‐specific marine migrations that have made it difficult to assess their trophic ecology. In this study, we collected returning and resident subadult Fraser River Chinook salmon in 2018 and 2019 from population groups with different known run‐timings (spring, summer, and fall) and marine ...
Jacob E. Lerner, Brian P. V. Hunt
wiley   +1 more source

Proteomic Analysis of Chinook Salmon (Oncorhynchus tshawytscha) Ovarian Fluid

PLoS ONE, 2014
The ovarian, or coelomic, fluid that is released with the egg mass of many fishes is increasingly found to play an important role in several biological processes crucial for reproductive success. These include maintenance of oocyte fertility and developmental competence, prolonging of sperm motility, and enhancing sperm swimming speed. Here we examined
Sheri L Johnson, Marsha Villarroel, Patrice Rosengrave, Alan Carne, Torsten Kleffmann, P Mark Lokman, Neil J Gemmell   +6 more
openaire   +4 more sources