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    • Upstream
  • (233)
European eel (Anguilla anguilla) elver migrating upstream, using an eel pass on the side of a weir, Somerset Levels, England, UK, July. - Nick Upton
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Nick Upton / European eel (Anguilla anguilla) elver migrating upstream, using an eel pass on the side of a weir, Somerset Levels, England, UK, July.
Atlantic salmon (Salmo salar) migrating upstream to spawn, Quebec, Canada  Photographed for the Freshwater Project. - Michel  Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Quebec, Canada Photographed for the Freshwater Project.
Atlantic salmon (Salmo salar) leaping on upstream migration, River Tyne, Hexham, Northumberland, UK, November - Ann  & Steve Toon
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Ann & Steve Toon / Atlantic salmon (Salmo salar) leaping on upstream migration, River Tyne, Hexham, Northumberland, UK, November
Atlantic salmon (Salmo salar) leaping a weir, Shrewsbury, River Severn, Shropshire, England, UK. November. - Will Watson
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Will Watson / Atlantic salmon (Salmo salar) leaping a weir, Shrewsbury, River Severn, Shropshire, England, UK. November.
Bottlenosed dolphin (Tursiops truncatus)  porpoising during annual sardine run, Port St Johns, South Africa. June. - Wim van den Heever
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Wim van den Heever / Bottlenosed dolphin (Tursiops truncatus) porpoising during annual sardine run, Port St Johns, South Africa. June.
Atlantic salmon (Salmo salar) leaping up a small waterfall in order to reach breeding grounds further upstream, Cairngorms National Park, Scotland, UK, October. - SCOTLAND: The Big Picture
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SCOTLAND: The Big Picture / Atlantic salmon (Salmo salar) leaping up a small waterfall in order to reach breeding grounds further upstream, Cairngorms National Park, Scotland, UK, October.
A split level photo of group of Sockeye salmon (Oncorhynchus nerka) fighting their way upstream as they migrate back to the river of their birth to spawn, trees showing autumnal colours. Adams River,... - Alex  Mustard
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Alex Mustard / A split level photo of group of Sockeye salmon (Oncorhynchus nerka) fighting their way upstream as they migrate back to the river of their birth to spawn, trees showing autumnal colours. Adams River,...
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August. - Michel Roggo
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Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August - Yukihiro Fukuda
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Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Atlantic salmon (Salmo salar) migrating upstream to spawn, Umelven, Sweden, July 2009 - Wild Wonders of Europe / Roggo
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Wild Wonders of Europe / Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Umelven, Sweden, July 2009
Atlantic salmon (Salmo salar) migrating upstream to spawn, Umelven, Sweden, July 2009 - Wild Wonders of Europe / Roggo
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Wild Wonders of Europe / Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Umelven, Sweden, July 2009
Atlantic salmon (Salmo salar) jumping waterfall during migration to spawn, Scotland. (non-ex) - Andy Rouse
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Andy Rouse / Atlantic salmon (Salmo salar) jumping waterfall during migration to spawn, Scotland. (non-ex)
Male Atlantic salmon {Salmo salar} leaping, migrating upstream to spawn, Perthshire, Scotland, UK, October - Laurie Campbell
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Laurie Campbell / Male Atlantic salmon {Salmo salar} leaping, migrating upstream to spawn, Perthshire, Scotland, UK, October
Brown trout (Salmo trutta) at water surface in shallow water migrating upstream, Bornholm, Denmark, November 2008 - Wild Wonders of Europe / Falklin
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Wild Wonders of Europe / Falklin / Brown trout (Salmo trutta) at water surface in shallow water migrating upstream, Bornholm, Denmark, November 2008
Brown trout (Salmo trutta) in shallow water migrating upstream, Bornholm, Denmark, November 2008 - Wild Wonders of Europe / Falklin
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Wild Wonders of Europe / Falklin / Brown trout (Salmo trutta) in shallow water migrating upstream, Bornholm, Denmark, November 2008
Brown trout (Salmo trutta) in shallow water migrating upstream, Bornholm, Denmark, November 2008 - Wild Wonders of Europe / Falklin
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Wild Wonders of Europe / Falklin / Brown trout (Salmo trutta) in shallow water migrating upstream, Bornholm, Denmark, November 2008
Brown trout (Salmo trutta) migrating upstream over rocks, Bornholm, Denmark, November 2008 - Wild Wonders of Europe / Falklin
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Wild Wonders of Europe / Falklin / Brown trout (Salmo trutta) migrating upstream over rocks, Bornholm, Denmark, November 2008
European Eel (Anguilla anguilla) juveniles migrating upstream, Rhine River, Switzerland, 1992 - Michel Roggo
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Michel Roggo / European Eel (Anguilla anguilla) juveniles migrating upstream, Rhine River, Switzerland, 1992
Chum / Dog Salmon (Oncorhynchus keta) in resting pool on migration upstream to spawn, Weaver Creek, British Columbia, Canada, 1989 - Michel Roggo
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Michel Roggo / Chum / Dog Salmon (Oncorhynchus keta) in resting pool on migration upstream to spawn, Weaver Creek, British Columbia, Canada, 1989
Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006 - Michel Roggo
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Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
Sockeye / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006 - Michel Roggo
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Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006
Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991 - Michel Roggo
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Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991
Sockeye / Red salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990 - Michel Roggo
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Michel Roggo / Sockeye / Red salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2006 - Michel Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2006
Atlantic salmon (Salmo salar) in resting pool on migration upstream for spawning, Namsen river, Norway, 2005 - Michel Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) in resting pool on migration upstream for spawning, Namsen river, Norway, 2005
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005 - Michel Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005 - Michel Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005 - Michel Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
Atlantic salmon (Salmo salar) leaping upstream in river, Scotland, UK - Kim Taylor
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Kim Taylor / Atlantic salmon (Salmo salar) leaping upstream in river, Scotland, UK
Sockeye Salmon (Oncorhynchus nerka) jumping upstream during spawning season, Brooks Falls, Katmai National Park, Alaska - Matthias Breiter
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Matthias Breiter / Sockeye Salmon (Oncorhynchus nerka) jumping upstream during spawning season, Brooks Falls, Katmai National Park, Alaska
Sockeye Salmon (Oncorhynchus nerka) jumping upstream during spawning season, Brooks Falls, Katmai National Park, Alaska - Matthias Breiter
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Matthias Breiter / Sockeye Salmon (Oncorhynchus nerka) jumping upstream during spawning season, Brooks Falls, Katmai National Park, Alaska
Sockeye Salmon (Oncorhynchus nerka) group migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada - Yva Momatiuk & John Eastcott
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Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada - Ingo Arndt
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Ingo Arndt / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada - Yva Momatiuk & John Eastcott
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Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) migrating upstream, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada - Yva Momatiuk & John Eastcott
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Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada - Yva Momatiuk & John Eastcott
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Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
European eel (Anguilla anguilla) migrating upstream bypassing a waterfall by leaving the water completely. Cairngorms National Park, Scotland, UK, July. - SCOTLAND: The Big Picture
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SCOTLAND: The Big Picture / European eel (Anguilla anguilla) migrating upstream bypassing a waterfall by leaving the water completely. Cairngorms National Park, Scotland, UK, July.
Flooded woodland and river upstream of a Beaver (Castor fiber) dam. Valgamaa, Southern Estonia. June. - Sven  Zacek
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Sven Zacek / Flooded woodland and river upstream of a Beaver (Castor fiber) dam. Valgamaa, Southern Estonia. June.
Researchers reviewing the data from a river water sample to determine whether any traces of platypus (Ornithorhynchus anatinus) DNA exist. Just a small trace means there are definitely platypus upstre... - Doug Gimesy
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Doug Gimesy / Researchers reviewing the data from a river water sample to determine whether any traces of platypus (Ornithorhynchus anatinus) DNA exist. Just a small trace means there are definitely platypus upstre...
Brook trout (Salvelinus fontinalis) in breeding colouration, migrating upstream to spawn, Colorado, USA, September. - Charlie  Summers
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Charlie Summers / Brook trout (Salvelinus fontinalis) in breeding colouration, migrating upstream to spawn, Colorado, USA, September.
Pink / Humpback Salmon (Oncorhynchus gorbuscha) male, dying with parts of flesh rotting, trying to make it upstream to its spawning grounds, Ketchikan Creek in the middle of Ketchikan, Alaska. - Charlie  Summers
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Charlie Summers / Pink / Humpback Salmon (Oncorhynchus gorbuscha) male, dying with parts of flesh rotting, trying to make it upstream to its spawning grounds, Ketchikan Creek in the middle of Ketchikan, Alaska.
Greenback cutthroat Trout (Oncorhynchus clarkii stomias) making its way upstream during the spawning season, Neota Wilderness Area,  Colorado, USA, July. - Charlie  Summers
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Charlie Summers / Greenback cutthroat Trout (Oncorhynchus clarkii stomias) making its way upstream during the spawning season, Neota Wilderness Area, Colorado, USA, July.
A group of Greenback Cutthroat Trout (Oncorhynchus clarksii stomias) huddle together under the safety of a bush root as they rest on their way upstream during their annual spawning run in a Neota Wild... - Charlie  Summers
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Charlie Summers / A group of Greenback Cutthroat Trout (Oncorhynchus clarksii stomias) huddle together under the safety of a bush root as they rest on their way upstream during their annual spawning run in a Neota Wild...
Red Gum trees are iconic Australian trees that grow along the banks of the Murray River. They rely on a regular flood cycle to survive. The unprecedented drought of the last 15 years has lead to low r... - Ashley Cooper
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Ashley Cooper / Red Gum trees are iconic Australian trees that grow along the banks of the Murray River. They rely on a regular flood cycle to survive. The unprecedented drought of the last 15 years has lead to low r...
Atlantic salmon (Salmo salar)   migrating upstream to spawn,Quebec, Canada, August. Photographed for the Freshwater Project. - Michel  Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn,Quebec, Canada, August. Photographed for the Freshwater Project.
Atlantic salmon (Salmo salar)   migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project. - Michel  Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project.
Atlantic salmon (Salmo salar)  migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project. - Michel  Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project.
Atlantic salmon (Salmo salar)  migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project. - Michel  Roggo
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Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream to spawn, Quebec, Canada, August. Photographed for the Freshwater Project.
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