Results 111 to 120 of about 23,673 (244)

Dietary modulation of antimicrobial peptides (HAMP and LEAP2) in Chinook salmon (Oncorhynchus tshawytscha) fed a phytobiotic functional diet: Integrated genomic characterisation and tissue‐specific expression

open access: yesJournal of Fish Biology, EarlyView.
Abstract Antimicrobial peptides (AMPs) are key components of the innate immune system in fish, providing rapid protection against microbial pathogens. Among these, the liver‐expressed antimicrobial peptides (LEAPs), comprising LEAP‐1 (hepcidin; HAMP) and LEAP‐2, play central roles in host defence and iron regulation.
Roberta Marcoli   +6 more
wiley   +1 more source

Marine migration influences mercury accumulation in anadromous Arctic char (Salvelinus alpinus)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Mercury (Hg) is a globally distributed toxic metal present in northern natural environments that biomagnifies in food webs and bioaccumulates in apex predator fish, such as Arctic char (Salvelinus alpinus)—an iteroparous species with a circumpolar distribution. Arctic char exhibit a variety of life history types, with the migrating, anadromous
Isabel R. Hilgendag   +6 more
wiley   +1 more source

Resource use by threatened, native Bull Trout (Salvelinus confluentus) in the presence of two non‐native salmonids

open access: yesJournal of Fish Biology, EarlyView.
Abstract Introduction of non‐native species contributes to the global decline of freshwater fishes by disrupting the diet and resources of native species through competition. Despite the potential for non‐native trout (Family: Salmonidae) to compete with native trout, non‐native trout species have been widely introduced worldwide to support ...
Jacqueline Pallard   +2 more
wiley   +1 more source

Thermal tolerance and acclimation limits in bull trout (Salvelinus confluentus) alevin

open access: yesJournal of Fish Biology, EarlyView.
Abstract The critical thermal maximum (CTmax) of bull trout (Salvelinus confluentus) alevin was measured after 3 weeks of acclimation to 4–21°C. CTmax increased from 24.3 at 4°C to 26.7 at 9°C, plateaued between 9 and 12°C (26.9°C), and declined to 25.9°C at 15°C.
Brendan Maldonado   +7 more
wiley   +1 more source

REVIEW OF THE NEGATIVE INFLUENCES OF NON-NATIVE SALMONIDS ON NATIVE FISH SPECIES [PDF]

open access: yes, 2013
Non-native salmonids are often introduced into areas containing species of concern, yet a comprehensive overview of the short- and long-term consequences of these introductions is lacking in the Great Plains.
Turek, Kelly C.   +2 more
core  

Upstream Transport of Mirex by Migrating Salmonids

open access: yes, 1989
Mirex is a persistent chlorinated hydrocarbon found in appreciable concentrations in sediments and pelagic organisms of Lake Ontario. Concentrations are particularly high in introduced salmonids, which spawn in considerable numbers in tributaries of the
William H. McDowell, Ronald J. Scrudato
core   +1 more source

Water temperature and river discharge drive age‐dependent changes in brown trout (Salmo trutta) growth

open access: yesJournal of Fish Biology, EarlyView.
Abstract Rivers and streams exhibit inherent variability in environmental conditions, particularly in water temperature and stream discharge. These factors can impact fish growth through both direct (i.e., physiological) and indirect (i.e., ecosystem productivity) mechanisms.
Patricia Y. Koh   +3 more
wiley   +1 more source

Climate change impacts on fish in the Baltic Sea

open access: yesJournal of Fish Biology, EarlyView.
Abstract The Baltic Sea is a marginal sea with strong abiotic gradients harbouring fish of both marine and freshwater origin. Here we review the empirical evidence for how changes in climate variables have impacted different fish and fish communities in the Baltic Sea.
Örjan Östman   +7 more
wiley   +1 more source

Genetics of Central Valley, O. mykiss, Populations: Drainage and Watershed-scale Analyses

open access: yesSan Francisco Estuary and Watershed Science, 2005
Genetic variation at 11 microsatellite loci described population genetic structure for Oncorhynchus mykiss in the Central Valley, California. Spatial and temporal variation was examined as well as relationships between hatchery and putative natural ...
Jennifer L. Nielsen   +3 more
doaj  

Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (Salmo trutta Morpha trutta)—Preliminary Results

open access: yesPathogens
Every year, ulcerative dermal necrosis (UDN) affects salmonids that spend most of their lives in the sea during their migration to the rivers of northern Poland to spawn. The clinical form of the disease manifests itself in ulcerative skin lesions, which
Marek Matras   +7 more
doaj   +1 more source

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