Results 121 to 130 of about 10,523 (243)

Whole System Ecohydrological Change Following Natural Flood Management and a Five‐Year Beaver Reintroduction Trial

open access: yesEcohydrology, Volume 19, Issue 4, June 2026.
ABSTRACT Once‐common beavers have been absent from the British landscape for centuries, but wild beaver populations have returned in recent years as part of reintroduction schemes, including releases into monitored enclosures. In North Yorkshire, such a release of Eurasian beavers took place in 2019.
Mark W. Smith   +12 more
wiley   +1 more source

Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome

open access: yes, 2011
Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome In the present work we evaluated the effect of ulcerative dermal necrosis (UDN) syndrome on resistance of erythrocytes to ...
N. Kurhalyuk   +5 more
core   +1 more source

Hydrodynamic and ecological effects of engineered logjams: Insights from field observations

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 6, June 2026.
Drone imaging, LSPIV and electrofishing data quantified restoration effects of engineered logjam at the Emme River (Switzerland). Placement and discharge shaped flow: Side jams created longer wakes, centre jams stronger mixing; and lower discharge intensified gap velocities, whereas wake length remained stable.
Felix Broß   +2 more
wiley   +1 more source

Sequence Analysis of the Protein Structure Homology Modeling of Growth Hormone Gene from Salmo trutta caspius

open access: yes, 2012
: In view of the growth hormone protein investigated and characterized from Salmo trutta caspius. Growth hormone gene in the Salmo trutta caspius have six exons in the full length that is translated into a Molecular Weight (kDa): ssDNA: 64.98 and dsDNA ...
²sheyda Akhshabi, ¹abolhasan Rezaei
core  

Two Germans, a Swede, and a Giant kōkopu: The Background to the Earliest Documented Description of a New Zealand Freshwater Fish

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
Galaxiids are a family of scaleless and mostly small freshwater fish which are distributed across the temperate latitudes of the southern hemisphere. The largest member of this family is the giant kōkopu (Galaxias argenteus), which has the added distinction of being the first New Zealand freshwater fish of any kind to be scientifically described.
James Braund
wiley   +1 more source

Mesohabitat Use by Brown Trout (Salmo trutta) in a Small Groundwater-dominated Stream

open access: yes, 2010
Groundwater-dominated streams have particular flow regimes that commonly support populations of trout. Meso- and micro-habitat surveys were carried out on a reach of the river Tern that drains a Triassic sandstone aquifer in the English West Midlands, to
Maddock, Ian   +8 more
core   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

open access: yesOikos, Volume 2026, Issue 6, June 2026.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley   +7 more
wiley   +1 more source

Marine depth use of sea trout Salmo trutta in fjord areas of central Norway:marine depth use of salmo trutta [PDF]

open access: yes, 2017
The vertical behaviour of 44 veteran sea trout Salmo trutta (275-580 mm) in different marine fjord habitats (estuary, pelagic, near shore with and without steep cliffs) was documented during May-February by acoustic telemetry. The swimming depth of S. trutta was influenced by habitat, time of day (day v.
Eldøy, S. H.   +9 more
openaire  

Season and human footprint weaken the negative effect of temperature on the intraspecific metabolic scaling exponent of wild brown trout populations

open access: yesJournal of Animal Ecology, Volume 95, Issue 6, Page 989-1001, June 2026.
We apply a new parameterized model through linking metabolic scaling and the maximum entropy theory of ecology to quantify the intraspecific metabolic scaling exponent of brown trout populations and assess the main drivers shaping the exponent. Abstract Metabolic scaling fundamentally sets the pace of life in almost all organisms.
Meng Xu, Ignasi Arranz
wiley   +1 more source

Enumerating Atlantic salmon smolt production in River Vindelälven based on habitat availability and parr densities

open access: yes, 2010
Habitat mapping was conducted in the main stem of River Vindelälven in the autumn of 2009 along the salmon distribution area. The aim was to estimate the quantity of potential reproduction areas, including spawning and juvenile rearing habitats.
Ågren, Stefan
core  

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