Results 121 to 130 of about 1,502,487 (275)

Sex‐dependent divergence in river use following maturation in Japanese seabass Lateolabrax japonicus revealed by otolith Sr:Ca chronologies

Journal of Fish Biology, EarlyView.
Abstract Partial migration, in which migratory and resident individuals coexist within a population, is widespread in fishes and contributes to population resilience. However, the role of sex in shaping migratory strategies remains poorly understood. Herein, we examined partial migration in Japanese seabass Lateolabrax japonicus using sex ratios and ...
Yoh Yamashita, Kazuha Takai, Mari Kuroki, Kotaro Shirai, Yuki Terashima, Manabu Kume, Hiroyuki Togashi, Yutaka Kurita, Toshihiro Wada, Hiroaki Murakami, Shun Watanabe, Junichi Takagi, Edouard Lavergne, Hiromichi Mitamura   +13 more
wiley   +1 more source

Fluctuating densities of juvenile brown trout (Salmo trutta) and Alpine bullhead (Cottus poecilopus) over a 25-year period in the Atna River, Norway

Fauna Norvegica
Long term monitoring data from pristine or relatively unimpacted watersheds represent a valuable ecological baseline in the 21st century. Here, we present a 25-year time series of brown trout (Salmo trutta) and Alpine bullhead (Cottus poecilopus ...
Knut Marius Myrvold, Trygve Hesthagen
doaj   +1 more source

Confirmation of the presence of non‐native, self‐sustaining brook trout Salvelinus fontinalis and genomic distinction between populations in southwest Germany

Journal of Fish Biology, EarlyView.
Abstract Introduced to Europe from North America in the 19th century, Brook trout, Salvelinus fontinalis, can negatively impact native fish communities, yet self‐sustaining populations remain rare in southern Germany despite a long stocking history. Here, we report a survey of 1618 electrofishing records from Baden‐Württemberg, identifying only three ...
J. Peter Koene, Jan Baer, Patrick Bartolin, Arne Jacobs, David Frei, Albert Ros, Pascal Vonlanthen, Alexander Brinker   +7 more
wiley   +1 more source

Method of meal delivery influences estimates of postprandial metabolism and alkaline tide in a benthic fish

Journal of Fish Biology, EarlyView.
Abstract Intragastric gavage is widely used in studies of digestive physiology to deliver standardised meals, yet it remains unclear whether it elicits postprandial metabolic and acid–base responses comparable to voluntary feeding. Here, we tested whether the method of meal delivery affects the magnitude and timing of the postprandial rise in metabolic
Junlin Chen, Barrett W. Wolfe, Harriet R. Goodrich   +2 more
wiley   +1 more source

Energetic costs of catch and release angling in Brook Trout (Salvelinus fontinalis) at two temperatures

Journal of Fish Biology, EarlyView.
Abstract Catch and release (C&R) angling is a common practice in recreational fisheries, which can involve a range of acute stressors for fish that lead to physiological and behavioural impairments. Following a C&R event, energy is expended to fuel recovery, while a cessation in feeding can limit energy intake.
Ryan Y. Hodgson, Peter E. Holder, Liane B. Nowell, Steven J. Cooke, Jacob W. Brownscombe   +4 more
wiley   +1 more source

Interactive effects of cover and hydraulics on brown trout habitat selection patterns

, 2008
Habitat modelling results are extremely sensitive to the habitat suitability criteria (HSC) used in the simulations. HSCs are usually expressed as univariate habitat suitability curves, although such univariate approach has been long questioned, since ...
Ayllón Fernández, Daniel, Almodóvar Pérez, Ana María, Elvira Payán, Benigno, Gómez Nicola, María Gracia   +3 more
core   +1 more source

Prolonged lake use in Atlantic salmon juveniles prior to seaward migration is associated with higher apparent mortality and faster estimated growth

Journal of Fish Biology, EarlyView.
Abstract Lakes can present both risks and opportunities for migratory fishes, yet their role in the life histories of anadromous salmonids remains understudied. Here, we used Passive Integrated Transponder (PIT) telemetry to examine lake‐use patterns and their associations with survival and growth in juvenile Atlantic salmon Salmo salar L. over 3 years
Thomas E. Reed, Ross Finlay, Joshka Kaufmann, Karl P. Phillips, Philip McGinnity, Russell Poole   +5 more
wiley   +1 more source

Brown trout

, 1970
Color slide image showing a brown trout caught during a Hatch River Expeditions tript on the Yampa River, Dinosaur National Monument, Moffat County, Colorado, probably in the 1970s or ...

core  

Challenging Host Specificity: Malacosporean Parasite Dynamics—Tetracapsuloides bryosalmonae Beyond Salmonids—An Infection Experiment

Journal of Fish Diseases, EarlyView.
ABSTRACT Proliferative Kidney Disease (PKD) is a severe parasitic disease of salmonids caused by the malacosporean endoparasite Tetracapsuloides bryosalmonae. In the fish intermediate host, the parasite is disseminated via the circulatory system and ultimately reaches the kidney, where it matures before releasing infective spores into the environment ...
Céline Möckli, Nicolas Diserens, Gary Delalay, Gastón Moré, Heike Schmidt‐Posthaus   +4 more
wiley   +1 more source

Mortality in Salmon (Salmo salar) Fry Related to Lipoid Liver Disease Induced by Unbalanced Fatty Acid Composition of the Diet

Journal of Fish Diseases, EarlyView.
ABSTRACT In 2023, all but one Swedish restocking farm rearing Baltic salmon and sea trout fry experienced massive mortality caused by lipoid liver disease (LLD). The struck farms used the same feed, and this was suspected to be the cause of the outbreak.
Caroline Ek, Lo Persson, Charlotte Axén
wiley   +1 more source