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Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411408
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
01405044
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451893
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
00451892
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 / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006
01160131
Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006
Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
01160133
Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
European Eel (Anguilla anguilla) juveniles migrating upstream, Rhine River, Switzerland, 1992
01160183
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
01160155
Michel Roggo / Chum / Dog Salmon (Oncorhynchus keta) in resting pool on migration upstream to spawn, Weaver Creek, British Columbia, Canada, 1989
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
01160111
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, 2006
01160113
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
01160112
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
01160109
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
01160110
Michel Roggo / Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
Sockeye / Red salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990
01160117
Michel Roggo / Sockeye / Red salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990
Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991
01160120
Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991
Male Atlantic salmon {Salmo salar} leaping, migrating upstream to spawn, Perthshire, Scotland, UK, October
01261069
Laurie Campbell / Male Atlantic salmon {Salmo salar} leaping, migrating upstream to spawn, Perthshire, Scotland, UK, October
Atlantic salmon (Salmo salar) migrating upstream to spawn, Umelven, Sweden, July 2009
01269922
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
01269921
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)
01262921
Andy Rouse / Atlantic salmon (Salmo salar) jumping waterfall during migration to spawn, Scotland. (non-ex)
Brown trout (Salmo trutta) at water surface in shallow water migrating upstream, Bornholm, Denmark, November 2008
01250114
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
01250113
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
01250111
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
01250110
Wild Wonders of Europe / Falklin / Brown trout (Salmo trutta) migrating upstream over rocks, Bornholm, Denmark, November 2008
Atlantic salmon (Salmo salar) leaping upstream in river, Scotland, UK
01142390
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
00600053
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
00600022
Matthias Breiter / Sockeye Salmon (Oncorhynchus nerka) jumping upstream during spawning season, Brooks Falls, Katmai National Park, Alaska
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411409
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration, silhouetted against sky. Quebec, Canada, August.
01411407
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration, silhouetted against sky. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411406
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411405
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411404
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411403
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411402
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411401
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
01411400
Michel Roggo / Atlantic Salmon (Salmo salar) in pool on upstream spawning migration. Quebec, Canada, August.
Sockeye salmon (Oncorhynchus nerka) adult swims upstream to spawn, interior of Alaska, USA
01407519
Steven Kazlowski / Sockeye salmon (Oncorhynchus nerka) adult swims upstream to spawn, interior of Alaska, USA
Upstream section of the River Hino, passing through woodland, Tottori Prefecture, Japan, Japanese salamander habitat - December 2009
01405000
Yukihiro Fukuda / Upstream section of the River Hino, passing through woodland, Tottori Prefecture, Japan, Japanese salamander habitat - December 2009
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
01404994
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
01404993
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
01404991
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
01404990
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
01404989
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, August
Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, July
01404988
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) moving upstream to spawn, Japan, July
Upstream section of the River Hino, Tottori Prefecture, Japan - Japanese salamander habitat, August 2009
01404987
Yukihiro Fukuda / Upstream section of the River Hino, Tottori Prefecture, Japan - Japanese salamander habitat, August 2009
Upstream section on the River Hino in winter, Japan, November 2009
01405070
Yukihiro Fukuda / Upstream section on the River Hino in winter, Japan, November 2009
Upstream section of the River Hino in autumn, Japan, October 2009
01405069
Yukihiro Fukuda / Upstream section of the River Hino in autumn, Japan, October 2009
Japanese giant salamander (Andrias japonicus) resting during migration upstream to spawn, Japan, August
01405067
Yukihiro Fukuda / Japanese giant salamander (Andrias japonicus) resting during migration upstream to spawn, Japan, August
Upstream portion of the River Hino, swollen by heavy rain, Japan, September 2011
01405066
Yukihiro Fukuda / Upstream portion of the River Hino, swollen by heavy rain, Japan, September 2011
Upstream portion of the River Hino, swollen by heavy rain, Japan, September 2011
01405064
Yukihiro Fukuda / Upstream portion of the River Hino, swollen by heavy rain, Japan, September 2011
Cliffs on the bank of the river Allier, 4 km upstream of Pont-du-Chateau, Auvergne, France, August 2010
01395161
Wild Wonders of Europe / Möllers / Cliffs on the bank of the river Allier, 4 km upstream of Pont-du-Chateau, Auvergne, France, August 2010
Sea trout (Salmo trutta) in shallow water during upstream migration, Bornholm, Vester Herred, Denmark, November 2009
01395015
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) in shallow water during upstream migration, Bornholm, Vester Herred, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream over rocks, Vester Herred, Bornholm, Denmark, November 2009
01395014
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream over rocks, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream over rocks, Vester Herred, Bornholm, Denmark, November 2009
01395013
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream over rocks, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
01395012
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating from the sea to a river to head upstream, in shallow water, Vester Herred, Bornholm, Denmark
01395011
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating from the sea to a river to head upstream, in shallow water, Vester Herred, Bornholm, Denmark
Sea trout (Salmo trutta) migrating from the sea to a river to head upstream in shallow water, Vester Herred, Bornholm, Denmark, November 2009
01395010
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating from the sea to a river to head upstream in shallow water, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) jumping out of water migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
01395008
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) jumping out of water migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
01395007
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
01395006
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
01395005
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) migrating upstream, Vester Herred, Bornholm, Denmark, November 2009
Sea trout (Salmo trutta) leaping above water migrating upstream, Vester Herred, Bornholm, Denmark, October 2009
01395004
Wild Wonders of Europe / Falklind / Sea trout (Salmo trutta) leaping above water migrating upstream, Vester Herred, Bornholm, Denmark, October 2009
Mixed species of Salmon (inlcuding Sockeye and Pink / Humpback salmon) swimming upstream on migration to Lake Kuril, Kamchatka, Far East Russia, August
01328385
Sergey Gorshkov / Mixed species of Salmon (inlcuding Sockeye and Pink / Humpback salmon) swimming upstream on migration to Lake Kuril, Kamchatka, Far East Russia, August
Mixed species of Salmon (inlcuding Sockeye and Pink / Humpback salmon) swimming upstream on migration to Lake Kuril, Kamchatka, Far East Russia, August
01328384
Sergey Gorshkov / Mixed species of Salmon (inlcuding Sockeye and Pink / Humpback salmon) swimming upstream on migration to Lake Kuril, Kamchatka, Far East Russia, August
Salmon leaping up waterfall, swimming upstream to spawn, Alaska, USA, September
01324015
Shattil & Rozinski / Salmon leaping up waterfall, swimming upstream to spawn, Alaska, USA, September
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream between forested banks during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451938
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
00451937
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
00451936
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 during spawning run, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451933
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) pair swimming upstream in fast current during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451920
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) pair swimming upstream in fast current 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
00451930
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
00451929
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
00451906
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
00451905
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 during spawning run, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451912
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream during spawning run, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) group swimming upstream in fast current under fallen tree during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451911
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming upstream in fast current under fallen tree during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada
Sockeye Salmon (Oncorhynchus nerka) pair swimming upstream between forested banks of Bear Creek during spawning run, Roderick Haig-Brown Provincial Park, British Columbia, Canada
00451897
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) pair swimming upstream between forested banks of Bear Creek during spawning run, 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
00451895
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
00451894
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
00451891
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
00451902
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
00451901
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 and Chinook Salmon (Oncorhynchus tshawytscha) swimming upstream between forested banks of Adams River during spawning run, Roderick Haig-Brown Provincial Park...
00451900
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group and Chinook Salmon (Oncorhynchus tshawytscha) swimming upstream between forested banks of Adams River during spawning run, Roderick Haig-Brown Provincial Park...
Sockeye Salmon (Oncorhynchus nerka) group and Chinook Salmon (Oncorhynchus tshawytscha) swimming upstream between forested banks of Adams River during spawning run, Roderick Haig-Brown Provincial Park...
00451899
Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group and Chinook Salmon (Oncorhynchus tshawytscha) swimming upstream between forested banks of Adams River during spawning run, Roderick Haig-Brown Provincial Park...
Chum salmon (Oncorhynchus keta) swimming upstream to spawn. Alaska, USA
01322950
Doc White / Chum salmon (Oncorhynchus keta) swimming upstream to spawn. Alaska, USA
A canoeist in early morning mist on East Inlet, Pittsburg, New Hampshire, USA. A pond upstream from Second Connecticut Lake, July 2007
01316124
Jerry Monkman / A canoeist in early morning mist on East Inlet, Pittsburg, New Hampshire, USA. A pond upstream from Second Connecticut Lake, July 2007
The Pitlochry fish ladder, showing several of the intermediate pools which the salmon use for travelling upstream, next to the Pitlochry Power Station on the River Tummell, Scotland, UK May 2010
01301387
Philippe Clement / The Pitlochry fish ladder, showing several of the intermediate pools which the salmon use for travelling upstream, next to the Pitlochry Power Station on the River Tummell, Scotland, UK May 2010
The Pitlochry fish ladder, showing several of the intermediate pools which the Salmon use for travelling upstream, next to the Pitlochry Power Station on the River Tummell, Scotland, UK May 2010
01301386
Philippe Clement / The Pitlochry fish ladder, showing several of the intermediate pools which the Salmon use for travelling upstream, next to the Pitlochry Power Station on the River Tummell, Scotland, UK May 2010
Muddy water flows through the Ravana Ella falls after a pre-monsoon deluge. It is an indicator of aggressive agricultural practices upstream. Sri Lanka, August 2010
01300957
Ian Lockwood / Muddy water flows through the Ravana Ella falls after a pre-monsoon deluge. It is an indicator of aggressive agricultural practices upstream. Sri Lanka, August 2010
Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
01160130
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
01160132
Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006
Lake trout (Salmo trutta lacustris) morph of Brown Trout, leaping upstream on migration to spawning ground from the Lac de Neuchâtel, Areuse River, Switzerland, 1989
01160165
Michel Roggo / Lake trout (Salmo trutta lacustris) morph of Brown Trout, leaping upstream on migration to spawning ground from the Lac de Neuchâtel, Areuse River, Switzerland, 1989
Sockeye / Red Salmon (Oncorhynchus nerka) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
01160126
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) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
01160129
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) waiting in lake to enter the Adams river for migration upstream, British Columbia, Canada 2006
01160125
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) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1994
01160121
Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1994
River Bann in winter, upstream from Katesbridge, County Down, Northern Ireland, UK, December 2000
01287320
Robert Thompson / River Bann in winter, upstream from Katesbridge, County Down, Northern Ireland, UK, December 2000