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Key points
Rivers are important habitats for lots of species, and beavers are viewed as a natural way to restore rivers to good condition.
This study aimed to understand the impacts of beavers and their dams on brown trout in a stream in Inverness-shire, comparing it with a nearby stream without...
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Birds
Grey partridge >
Common pheasant >
Red grouse >
Black Grouse >
Birds of prey >
Lapwing and other waders >
Woodcock >
Songbirds >
Fish
Salmon >
Trout >
Grayling >
Pike >
Mammals
Brown hare >
Mountain hare >
Water vole >
Deer >
American mink &g...
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Esox lucius
Pike are classic 'sit-and-wait' predators, capable of fast acceleration after a slow stalking of their prey which may be invetebrates, fish or, less commonly, birds or mammals.
An ancient group of fish, pike are represented in the Cromer Forest fossil beds (500,000 years ago) at whic...
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The adult salmon counter on the River Frome provides us with vital information regarding the numbers of salmon that return to the river each year to spawn. However, it is also important that we count the number of young salmon – called smolts – that leave the Frome for their seaward journey to th...
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Numerous fish species migrate or move between freshwater, estuarine and marine water as part of their life cycle (e.g. Atlantic salmon, trout, European eel, sturgeon, and shad) and are impacted by anthropogenic activities occurring in all three environments. Over the past four decades, drastic de...
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Fisheries Scientist
Céline has been with the GWCT Fisheries team, based on the River Frome at Wareham, Dorset, since 2017. As a fisheries scientist, she tracks young and adult fish during their migration from freshwater to the sea, investigating their behaviour, migration routes and timing. She a...
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Fighting to protect our iconic and threatened migratory fish
Freshwater migratory fish are among the most threatened animals on the planet. Globally they have declined by 76% between 1970 and 2016 a higher rate of decline than marine or terrestrial migratory species. Our salmon and sea trout are...
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Key points
Tagging is a very important technique for studying many aspects of wildlife biology and is widely used.
It is important to monitor any effect that the tagging process has on the animal.
This study compared two groups of juvenile salmon (smolts): an ‘experimental’ group that were captu...
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The Wylye Grayling and Trout Survey (WGTS) has been monitoring grayling and brown trout populations since 1996 at multiple long-term sites on the River Wylye, Wiltshire. It is a collaborative project between Natural Resources Wales, the Piscatorial Society and the GWCT, and supported by the Grayl...
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The Game & Wildlife Conservation Trust believes in ‘conservation through wise use’: the incentive of a sustainably harvestable resource be it deer, grouse or trout as a way of producing more wildlife in general. Our research over the last 25 years highlights this approach can work very well.
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