Results 161 to 170 of about 11,477 (255)

Upstream passage windows for anadromous fish at a large barrier in the Rhine-Meuse estuary, 1996-2018. [PDF]

open access: yesMov Ecol
Meijer Zu Schlochtern MP   +6 more
europepmc   +1 more source

Mitochondrial respiratory capacities are not linked to individual variation in hypoxia tolerance and standard metabolic rate in European seabass Dicentrarchus labrax

open access: yesJournal of Fish Biology, EarlyView.
Abstract In hypoxic environments, fish attempt to regulate their metabolic rate as oxygen levels in the water decline. Individuals that have low energy requirements for maintenance – standard metabolic rate (SMR) – are expected to have higher hypoxia tolerance, measured as the critical water oxygen saturation threshold (Scrit) below which they cannot ...
Elisa Thoral   +11 more
wiley   +1 more source

Temperature effects from hydropeaking impair egg and larval development in Danube salmon Hucho hucho and brown trout Salmo trutta

open access: yesJournal of Fish Biology, EarlyView.
Abstract Hydropeaking is considered an important stressor for salmonids and other species in rivers affected by hydropower. In this study, we investigated the in situ effects of hydropeaking on the survival of eggs and larvae of fall spawning brown trout as well as spring spawning Danube salmon.
Julius Gorenz   +3 more
wiley   +1 more source

Heat exchange rates between adult sockeye salmon (Oncorhynchus nerka) and the environment

open access: yesJournal of Fish Biology, EarlyView.
Abstract Body temperatures of salmon do not always match the temperatures of their immediate environment. We investigated the relationship between varying ambient water temperatures and body temperatures of adult sockeye salmon Oncorhynchus nerka using Newton's law of cooling and non‐linear mixed models.
Avery Dextrase   +2 more
wiley   +1 more source

Genetic composition of facultatively anadromous brown trout Salmo trutta L. in a freshwater‐lake system

open access: yesJournal of Fish Biology, EarlyView.
Abstract Brown trout (Salmo trutta) has adapted to a wide range of habitats and displays a variety of life‐history strategies. Being facultatively anadromous, populations without migration barriers to the sea consist of both resident and anadromous individuals in different proportions.
Ingerid J. Hagen   +7 more
wiley   +1 more source

The Spawning Mark on Sea Trout Scales

open access: yesICES Journal of Marine Science, 1932
openaire   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

open access: yesJournal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso   +4 more
wiley   +1 more source

Impacts of predator odours and conspecific disturbance cues on minnow thermal tolerance

open access: yesJournal of Fish Biology, EarlyView.
Abstract Warming waters can affect fish community dynamics, potentially exacerbating predator–prey asymmetries in behavioural and physiological metrics of thermal tolerance. Further, differing responses of prey fish species to concurrent predation risk and warming highlight the need to understand these impacts in various contexts, especially with at ...
V. Groves   +4 more
wiley   +1 more source

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