Results 41 to 50 of about 45,385 (267)

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Brook trout passage performance through culverts [PDF]

open access: yesCanadian Journal of Fisheries and Aquatic Sciences, 2016
Culverts can restrict access to habitat for stream-dwelling fishes. We used passive integrated transponder telemetry to quantify passage performance of >1000 wild brook trout (Salvelinus fontinalis) attempting to pass 13 culverts in Quebec under a range of hydraulic and environmental conditions.
Goerig, Elsa   +2 more
openaire   +2 more sources

An investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance [PDF]

open access: yes, 2017
The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium ...
Başçınar, N., Delihasan Sonay, F.
core   +1 more source

Effect of Using Nisin and Ethylenediaminetetraacetic Acid on the Bacterial Load, Deterioration Criteria, and Sensory Attributes of Chilled Chicken Cuts

open access: yesFood Safety and Health, EarlyView.
Evaluation of the efficacy of selected dipping solutions on fresh chicken meat shelf life. Samples treated with nisin and EDTA combinations, followed by chilled storage. The effectiveness of these interventions was assessed through bacteriological, sensory, and physicochemical (pH) deterioration criteria.
Mohamed M. Eltanty   +5 more
wiley   +1 more source

Combined effects of early snowmelt and climate warming on mountain lake temperatures and fish energetics

open access: yesArctic, Antarctic, and Alpine Research, 2020
Mountain regions are experiencing some of the highest air temperature increases and ice cover decreases. However, few studies have examined the effects of climate warming and earlier snowmelt on mountain lake thermal characteristics and energetic ...
Kyle R. Christianson, Brett M. Johnson
doaj   +1 more source

Impact of forest harvesting on trophic structure of eastern Canadian Boreal Shield lakes: insights from stable isotope analyses.

open access: yesPLoS ONE, 2014
Perturbations on ecosystems can have profound immediate effects and can, accordingly, greatly alter the natural community. Land-use such as forestry activities in the Canadian Boreal region have increased in the last decades, raising concerns about their
Patricia Glaz   +3 more
doaj   +1 more source

Effect of polyploidization on survival of sea, brook, and rainbow trout hybrids during incubation and early feeding period [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1988
Effect of polyploidization on survival of brook trout (Salvelinus fontinalis), sea trout (Salmo trutta morpha trutta) and rainbow trout (Salmo gairdneri) hybrids, including reciprocal crosses, during incubation and larval stages period was tested.
S. Dobosz, K. Goryczko
doaj   +3 more sources

The end of The Road [PDF]

open access: yes, 2017
The closing paragraph of Cormac McCarthy’s The Road hums with mystery. Some find it suggestive of renewal, though only vaguely. Others contend that it does little to ameliorate the novel’s pessimism.
Allen-Hermanson, Sean
core   +3 more sources

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

open access: yesOikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli   +4 more
wiley   +1 more source

Growth, Condition, and Trophic Relations of Stocked Trout in Southern Appalachian Mountain Streams [PDF]

open access: yes, 2019
Stream trout fisheries are among the most popular and valuable in the United States, but many are dependent on hatcheries to sustain fishing and harvest.
Besler, Douglas A.   +5 more
core   +1 more source

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