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Tench (Tinca tinca) Europe
01160223
Tench (Tinca tinca) Europe


Rudd (Scardinius erythrophthalmus) Europe
01160222
Rudd (Scardinius erythrophthalmus) Europe


Roach (Rutilus rutilus) Europe
01160221
Roach (Rutilus rutilus) Europe


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Europe
01160220
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Europe


Asp (Aspius aspius) Germany
01160219
Asp (Aspius aspius) Germany


Danubian roach / Pigo (Rutilus pigus) Europe
01160218
Danubian roach / Pigo (Rutilus pigus) Europe


Nase (Chondrostoma nasus) Switzerland
01160217
Nase (Chondrostoma nasus) Switzerland


Weather fish (Misgurnus fossilis) Europe
01160216
Weather fish (Misgurnus fossilis) Europe


Sunbleak (Leucaspius delineatus) Europe
01160215
Sunbleak (Leucaspius delineatus) Europe


Sea lamprey (Petromyzon marinus) Europe
01160214
Sea lamprey (Petromyzon marinus) Europe


Sea trout (Salmo trutta trutta) morph of the Brown Trout, Europe
01160213
Sea trout (Salmo trutta trutta) morph of the Brown Trout, Europe


Marble trout (Salmo trutta marmorata) morph of the Brown Trout, Europe
01160212
Marble trout (Salmo trutta marmorata) morph of the Brown Trout, Europe


Allis shad (Alosa alosa) Europe
01160211
Allis shad (Alosa alosa) Europe


Bleak (Alburnus alburnus) Europe
01160210
Bleak (Alburnus alburnus) Europe


Ruffe (Gymnocephalus cernuus), Europe
01160209
Ruffe (Gymnocephalus cernuus), Europe


Black bullhead / American catfish (Ameiurus melas)
Europe
01160208
Black bullhead / American catfish (Ameiurus melas) Europe


Common Carp (Cyprinus carpio) Europe
01160207
Common Carp (Cyprinus carpio) Europe


Crucian carp (Carassius carassius) Europe
01160206
Crucian carp (Carassius carassius) Europe


American lake trout (Salvelinus namaycush) Europe
01160205
American lake trout (Salvelinus namaycush) Europe


Spinycheek crayfish (Orconectes limosus) Europe
01160204
Spinycheek crayfish (Orconectes limosus) Europe


Brook barbel (Barbus caninus) Europe
01160203
Brook barbel (Barbus caninus) Europe


Danube salmon (Hucho hucho) Europe
01160202
Danube salmon (Hucho hucho) Europe


Pike (Esox lucius) Europe
01160201
Pike (Esox lucius) Europe


Dace (Leuciscus leuciscus) Europe
01160200
Dace (Leuciscus leuciscus) Europe


Gudgeon (Gobio gobio) Europe
01160199
Gudgeon (Gobio gobio) Europe


Bullhead (Cottus gobio) Europe
01160198
Bullhead (Cottus gobio) Europe


Goldfish (Carassius auratus) Europe
01160197
Goldfish (Carassius auratus) Europe


Prussian carp (Carassius auratus gibelio) Europe
01160196
Prussian carp (Carassius auratus gibelio) Europe


European freshwater goby / Ghiozzo (Padogobius bonelli) Europe
01160195
European freshwater goby / Ghiozzo (Padogobius bonelli) Europe


Bighead carp (Aristichthys nobilis) Europe
01160194
Bighead carp (Aristichthys nobilis) Europe


Galician crayfish (Astacus leptodactylus) Europe
01160193
Galician crayfish (Astacus leptodactylus) Europe


Large mouthed bass (Micropterus salmoides) Europe
01160192
Large mouthed bass (Micropterus salmoides) Europe


European River lamprey (Lampetra fluviatilis) Europe
01160191
European River lamprey (Lampetra fluviatilis) Europe


Whitefish (Coregonus sp) Europe
01160190
Whitefish (Coregonus sp) Europe


Sea lamprey (Petromyzon marinus) close up of disk-shaped mouth with horny teeth, Europe, Captive
01160189
Sea lamprey (Petromyzon marinus) close up of disk-shaped mouth with horny teeth, Europe, Captive


Common Atlantic sturgeon (Acipenser sturio), Europe, Captive
01160188
Common Atlantic sturgeon (Acipenser sturio), Europe, Captive


River lamprey (Lampetra fluviatilis) sucker with disk-shaped mouth with horny teeth, Europe, Captive
01160187
River lamprey (Lampetra fluviatilis) sucker with disk-shaped mouth with horny teeth, Europe, Captive


European River lamprey (Lampetra fluviatilis)
Larvaes, Sweden, 1998
01160186
European River lamprey (Lampetra fluviatilis) Larvaes, Sweden, 1998


Italian barbel (Barbus plebejus) Idrijca river, Slovenia, November 2005
01160185
Italian barbel (Barbus plebejus) Idrijca river, Slovenia, November 2005


Italian barbel (Barbus plebejus) Idrijca river, Slovenia, November 2005
01160184
Italian barbel (Barbus plebejus) Idrijca river, Slovenia, November 2005


European Eel (Anguilla anguilla) juveniles migrating upstream, Rhine River, Switzerland, 1992
01160183
European Eel (Anguilla anguilla) juveniles migrating upstream, Rhine River, Switzerland, 1992


Bullhead (Cottus gobio) Europe
01160182
Bullhead (Cottus gobio) Europe


Tench (Tinca tinca) male, Aare river, Switzerland 2006
01160181
Tench (Tinca tinca) male, Aare river, Switzerland 2006


Tench (Tinca tinca) on the surface of a turbid marsh pon, with Rudd (Scardinius erythrophthalmus) above, Fribourg, Switzerland, 2004
01160180
Tench (Tinca tinca) on the surface of a turbid marsh pon, with Rudd (Scardinius erythrophthalmus) above, Fribourg, Switzerland, 2004


Stone loach (Nemacheilus / Barbatula barbatula)
inhabits the stones on riverbed, Saane River, Switzerland, 1990
01160179
Stone loach (Nemacheilus / Barbatula barbatula) inhabits the stones on riverbed, Saane River, Switzerland, 1990


Perch (Perca fluviatilis) Aare river, Switzerland, 1992
01160178
Perch (Perca fluviatilis) Aare river, Switzerland, 1992


Pike (Esox lucius) hiding under aquatic vegetation, Doubs River, France, 2001
01160177
Pike (Esox lucius) hiding under aquatic vegetation, Doubs River, France, 2001


Bream (Abramis brama) Lake of Gruyères, Fribourg, Switzerland 2006
01160176
Bream (Abramis brama) Lake of Gruyères, Fribourg, Switzerland 2006


Bream (Abramis brama) Rhine river, Switzerland
01160175
Bream (Abramis brama) Rhine river, Switzerland


Roach (Rutilus rutilus) spawning behavior, tributary of the Lake of Seedorf, Fribourg, Switzerland 2006
01160174
Roach (Rutilus rutilus) spawning behavior, tributary of the Lake of Seedorf, Fribourg, Switzerland 2006


Roach (Rutilus rutilus) spawning behavior in tributary of the Lake of Seedorf, Fribourg, Switzerland 2006
01160173
Roach (Rutilus rutilus) spawning behavior in tributary of the Lake of Seedorf, Fribourg, Switzerland 2006


Roach (Rutilus rutilus) spawning behavior, tributary of the Lake of Seedorf, Fribourg, Switzerland 2006
01160172
Roach (Rutilus rutilus) spawning behavior, tributary of the Lake of Seedorf, Fribourg, Switzerland 2006


Roach (Rutilus rutilus) spawning, Canal de la Broye, Fribourg, Switzerland 1992
01160171
Roach (Rutilus rutilus) spawning, Canal de la Broye, Fribourg, Switzerland 1992


Roach (Rutilus rutilus) spawning, Canal de la Broaye, Fribourg, Switzerland 1998
01160170
Roach (Rutilus rutilus) spawning, Canal de la Broaye, Fribourg, Switzerland 1998


Minnow (Phoxinus phoxinus) in shallow water close to the shore, spawning time, Doubs river, France, 2005
01160169
Minnow (Phoxinus phoxinus) in shallow water close to the shore, spawning time, Doubs river, France, 2005


Lake trout (Salmo trutta lacustris) morph of Brown Trout, jumping up waterfall on migration to spawning ground, Lac de Neuchâtel, Switzerland 2006
01160168
Lake trout (Salmo trutta lacustris) morph of Brown Trout, jumping up waterfall on migration to spawning ground, Lac de Neuchâtel, Switzerland 2006


Lake trout (Salmo trutta lacustris) morph of Brown Trout, egg, Europe, Captive
01160167
Lake trout (Salmo trutta lacustris) morph of Brown Trout, egg, Europe, Captive


Lake trout (Salmo trutta lacustris) morph of Brown Trout, male and female (in foreground) at spawning ground, Areuse River, Switzerland 2006
01160166
Lake trout (Salmo trutta lacustris) morph of Brown Trout, male and female (in foreground) at spawning ground, Areuse River, Switzerland 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
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


Rudd (Scardinius erythrophthalmus) at surface of peat pond, Fribourg, Switzerland 2006
01160164
Rudd (Scardinius erythrophthalmus) at surface of peat pond, Fribourg, Switzerland 2006


Rudd (Scardinius erythrophthalmus) close up of anal fin, Europe, Captive
01160163
Rudd (Scardinius erythrophthalmus) close up of anal fin, Europe, Captive


Carp (Cyprinus carpio) in forest pool close to the Aare River, Switzerland, 2005
01160162
Carp (Cyprinus carpio) in forest pool close to the Aare River, Switzerland, 2005


Carp (Cyprinus carpio) Aare river, Switzerland, 2004
01160161
Carp (Cyprinus carpio) Aare river, Switzerland, 2004


Carp (Cyprinus carpio) Aare River, Switzerland, 2003
01160160
Carp (Cyprinus carpio) Aare River, Switzerland, 2003


Carp (Cyprinus carpio) Aare River, Switzerland 2006
01160159
Carp (Cyprinus carpio) Aare River, Switzerland 2006


Carp (Cyprinus carpio), Aare river, Switzerland 2006
01160158
Carp (Cyprinus carpio), Aare river, Switzerland 2006


Carp (Cyprinus carpio) in forest pool close to the Aare River, Switzerland, 1992
01160157
Carp (Cyprinus carpio) in forest pool close to the Aare River, Switzerland, 1992


Barbel (Barbus barbus) daytime resting on riverbed, Saane River, Switzerland, 1989
01160156
Barbel (Barbus barbus) daytime resting on riverbed, Saane River, Switzerland, 1989


Chum / Dog Salmon (Oncorhynchus keta) in resting pool on migration upstream to spawn, Weaver Creek, British Columbia, Canada, 1989
01160155
Chum / Dog Salmon (Oncorhynchus keta) in resting pool on migration upstream to spawn, Weaver Creek, British Columbia, Canada, 1989


Marble trout (Salmo trutta marmorata) morph of the Brown Trout, male and female at spawning ground, Tolminka river, Slovenia, 2005
01160154
Marble trout (Salmo trutta marmorata) morph of the Brown Trout, male and female at spawning ground, Tolminka river, Slovenia, 2005


Marble trout (Salmo trutta marmorata) morph of the Brown Trout, female at spawning ground, Tolminka river, Slovenia, 2005
01160153
Marble trout (Salmo trutta marmorata) morph of the Brown Trout, female at spawning ground, Tolminka river, Slovenia, 2005


Marble trout (Salmo trutta marmorata) morph of the Brown Trout, at spawning ground, Tolminka river, Slovenia, 2005
01160152
Marble trout (Salmo trutta marmorata) morph of the Brown Trout, at spawning ground, Tolminka river, Slovenia, 2005


Nase (Chondrostoma nasus) at spawning ground, Saane River tributary, Switzerland, 2006
01160151
Nase (Chondrostoma nasus) at spawning ground, Saane River tributary, Switzerland, 2006


Nase (Chondrostoma nasus) male at spawning ground, Saane River, Switzerland, 2004
01160150
Nase (Chondrostoma nasus) male at spawning ground, Saane River, Switzerland, 2004


Nase (Chondrostoma nasus) at spawning ground, Saane River tributary, Switzerland, 2006
01160149
Nase (Chondrostoma nasus) at spawning ground, Saane River tributary, Switzerland, 2006


Nase (Chondrostoma nasus) Males close to spawning ground, Saane River, Switzerland
01160148
Nase (Chondrostoma nasus) Males close to spawning ground, Saane River, Switzerland


Looking down at Chubb (Leuciscus cephalus) at surface with reflection of bridge, Rhine River, Switzerland, 1993
01160147
Looking down at Chubb (Leuciscus cephalus) at surface with reflection of bridge, Rhine River, Switzerland, 1993


Chubb (Leuciscus cephalus) under ice in frozen river, Aare river, Switzerland 2006
01160146
Chubb (Leuciscus cephalus) under ice in frozen river, Aare river, Switzerland 2006


Chubb (Leuciscus cephalus) near surface of water waiting for food, Croatia, 2005
01160145
Chubb (Leuciscus cephalus) near surface of water waiting for food, Croatia, 2005


Chubb (Leuciscus cephalus) waiting for food at outlet of lake, Croatia, 2005
01160144
Chubb (Leuciscus cephalus) waiting for food at outlet of lake, Croatia, 2005


Chubb (Leuciscus cephalus) waiting near water surface for food, Croatia, 2004
01160143
Chubb (Leuciscus cephalus) waiting near water surface for food, Croatia, 2004


Rainbow trout alevins (Salmo gairdneri / Oncorhynchus mykiss) hatchery, Switzerland, 2003
01160142
Rainbow trout alevins (Salmo gairdneri / Oncorhynchus mykiss) hatchery, Switzerland, 2003


Rainbow trout alevins (Salmo gairdneri / Oncorhynchus mykiss) hatchery, Switzerland, 2003
01160141
Rainbow trout alevins (Salmo gairdneri / Oncorhynchus mykiss) hatchery, Switzerland, 2003


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) eggs in hatchery, Switzerland, Captive
01160140
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) eggs in hatchery, Switzerland, Captive


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in a hatchery, UK, Captive
01160139
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in a hatchery, UK, Captive


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in pool of the Lepena river, Slovenia 2006
01160138
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in pool of the Lepena river, Slovenia 2006


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in pool of the Lepena river, Slovenia 2006
01160137
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) in pool of the Lepena river, Slovenia 2006


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Idrijca river, Slovenia, 2005
01160136
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Idrijca river, Slovenia, 2005


Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Sava river, Slovenia, 2005
01160135
Rainbow trout (Salmo gairdneri / Oncorhynchus mykiss) Sava river, Slovenia, 2005


Sockeye / Red Salmon (Oncorhynchus nerka)
female digging at spawning ground, male in attendance, Adams river, British Columbia, Canada 2006
01160134
Sockeye / Red Salmon (Oncorhynchus nerka) female digging at spawning ground, male in attendance, 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
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
Sockeye / Red Salmon (Oncorhynchus nerka) migrating upstream to spawn, Adams river, British Columbia, Canada 2006


Sockeye / Red Salmon (Oncorhynchus nerka)
migrating upstream to spawn, Adams river, British Columbia, Canada 2006
01160131
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
01160130
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
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), female digging to lay eggs on spawning ground, Adams river, British Columbia, Canada 2006
01160128
Sockeye / Red Salmon (Oncorhynchus nerka), female digging to lay eggs on spawning ground, Adams river, British Columbia, Canada 2006


Sockeye / Red Salmon (Oncorhynchus nerka), waiting in resting pool to enter the spawning ground, Adams river, British Columbia, Canada 2006
01160127
Sockeye / Red Salmon (Oncorhynchus nerka), waiting in resting pool to enter the spawning ground, 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
01160126
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
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), males at spawning ground, Adams river, British Columbia, Canada 2006
01160124
Sockeye / Red Salmon (Oncorhynchus nerka), males at spawning ground, Adams river, British Columbia, Canada 2006


Sockeye / Red Salmon (Oncorhynchus nerka) at spawning ground, swimming over dead salmon, Adams river, British Columbia, Canada, 2006
01160123
Sockeye / Red Salmon (Oncorhynchus nerka) at spawning ground, swimming over dead salmon, Adams river, British Columbia, Canada, 2006


Sockeye / Red Salmon (Oncorhynchus nerka) male and female at spawning ground, Adams river, British Columbia, Canada, 1994
01160122
Sockeye / Red Salmon (Oncorhynchus nerka) male and female at spawning ground, Adams river, British Columbia, Canada, 1994


Sockeye / Red Salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1994
01160121
Sockeye / Red Salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1994


Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991
01160120
Sockeye / Red Salmon (Oncorhynchus nerka) mass migration upstream for spawning, Kenai Peninsula, Alaska, 1991


Sockeye / Red Salmon (Oncorhynchus nerka) pair 
spawning on gravel ground, Adams river, British Columbia, Canada, 1990
01160119
Sockeye / Red Salmon (Oncorhynchus nerka) pair spawning on gravel ground, Adams river, British Columbia, Canada, 1990


Sockeye / Red salmon (Oncorhynchus nerka) males fighting on spawning ground, Adams river, British Columbia, Canada, 1990
01160118
Sockeye / Red salmon (Oncorhynchus nerka) males fighting on spawning ground, Adams river, British Columbia, Canada, 1990


Sockeye / Red salmon (Oncorhynchus nerka)
in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990
01160117
Sockeye / Red salmon (Oncorhynchus nerka) in resting pool on migration upstream for spawning, Adams river, British Columbia, Canada, 1990


Atlantic salmon (Salmo salar) in cage of Salmon farm, Norway, Captive
01160116
Atlantic salmon (Salmo salar) in cage of Salmon farm, Norway, Captive


Atlantic salmon alevins (Salmo salar) Europe, Captive
01160115
Atlantic salmon alevins (Salmo salar) Europe, Captive


Atlantic salmon alevins (Salmo salar) Europe, Captive
01160114
Atlantic salmon alevins (Salmo salar) Europe, Captive


Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2006
01160113
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
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
01160111
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
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005


Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005
01160109
Atlantic salmon (Salmo salar) migrating upstream for spawning, Namsen river, Norway, 2005


Atlantic salmon (Salmo salar) male at spawning ground, Miramichi River, Canada, 1988
01160108
Atlantic salmon (Salmo salar) male at spawning ground, Miramichi River, Canada, 1988


Brook lamprey (Lampetra planeri) showing sucker, Europe
01160107
Brook lamprey (Lampetra planeri) showing sucker, Europe


Brook lamprey (Lampetra planeri) Europe
01160106
Brook lamprey (Lampetra planeri) Europe


Brook lamprey (Lampetra planeri), Europe
01160105
Brook lamprey (Lampetra planeri), Europe


Brook lamprey (Lampetra planeri) at spawning ground, Glane River, Switzerland, 1990
01160104
Brook lamprey (Lampetra planeri) at spawning ground, Glane River, Switzerland, 1990


Brown trout (Salmo trutta fario) under waterfall, waiting for drift food, Saane river tributary, Swiss Alps, Fribourg, Switzerland 2006
01160103
Brown trout (Salmo trutta fario) under waterfall, waiting for drift food, Saane river tributary, Swiss Alps, Fribourg, Switzerland 2006


Brown trout (Salmo trutta fario) Idrjica, Slovenia, 2006
01160102
Brown trout (Salmo trutta fario) Idrjica, Slovenia, 2006


Brown trout (Salmo trutta fario) egg, Aare river, Switzerland, 1991
01160101
Brown trout (Salmo trutta fario) egg, Aare river, Switzerland, 1991


Brown trout (Salmo trutta fario) Mountain creek, Fribourg Alps, Switzerland, 2005
01160100
Brown trout (Salmo trutta fario) Mountain creek, Fribourg Alps, Switzerland, 2005


Brown trout (Salmo trutta fario) River Doubs, France, 2005
01160099
Brown trout (Salmo trutta fario) River Doubs, France, 2005


Brown trout (Salmo trutta fario) waiting for drift food, river Doubs, France, 2004
01160098
Brown trout (Salmo trutta fario) waiting for drift food, river Doubs, France, 2004


Brown trout (Salmo trutta fario) young trout with parr marks, Europe
01160097
Brown trout (Salmo trutta fario) young trout with parr marks, Europe


Brown trout alevins (Salmo trutta fario) in a hatchery, Europe, Captive
01160096
Brown trout alevins (Salmo trutta fario) in a hatchery, Europe, Captive


Brown trout alevins (Salmo trutta fario) in a hatchery, Europe, Captive
01160095
Brown trout alevins (Salmo trutta fario) in a hatchery, Europe, Captive


Brown trout (Salmo trutta fario) eggs in a hatchery, Europe, Captive
01160094
Brown trout (Salmo trutta fario) eggs in a hatchery, Europe, Captive


Brown trout (Salmo trutta fario) amongst reeds, Gacka River, Croatia, 1987
01160093
Brown trout (Salmo trutta fario) amongst reeds, Gacka River, Croatia, 1987


European Grayling (Thymallus thymallus) feeding, River Koridnica, Slovenia, 1999
01160092
European Grayling (Thymallus thymallus) feeding, River Koridnica, Slovenia, 1999


European Grayling (Thymallus thymallus) egg with alevin visible inside, hatchery from Lake of Thoune, Switzerland, 1991. Captive
01160091
European Grayling (Thymallus thymallus) egg with alevin visible inside, hatchery from Lake of Thoune, Switzerland, 1991. Captive


European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992
01160090
European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992


European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992
01160089
European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992


European Grayling (Thymallus thymallus) Female (front) with two males at spawning ground, Lake of Thoune, Switzerland, 1992
01160088
European Grayling (Thymallus thymallus) Female (front) with two males at spawning ground, Lake of Thoune, Switzerland, 1992


European Grayling (Thymallus thymallus), Males at spawning ground, Lake of Thoune, Switzerland, 1992
01160087
European Grayling (Thymallus thymallus), Males at spawning ground, Lake of Thoune, Switzerland, 1992


European Grayling (Thymallus thymallus) Female, spawning period, Europe
01160086
European Grayling (Thymallus thymallus) Female, spawning period, Europe


European Grayling (Thymallus thymallus) Juvenile, Europe
01160085
European Grayling (Thymallus thymallus) Juvenile, Europe


European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006
01160084
European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006


European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006
01160083
European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006


European Grayling (Thymallus thymallus), Male, Aare river, Switzerland, 2005
01160082
European Grayling (Thymallus thymallus), Male, Aare river, Switzerland, 2005


European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005
01160081
European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005


European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005
01160080
European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005


European Grayling (Thymallus thymallus) waiting for drift food, Sava river, Slovenia, 2004
01160079
European Grayling (Thymallus thymallus) waiting for drift food, Sava river, Slovenia, 2004


European Grayling (Thymallus thymallus) Doubs River, Switzerland, 2004
01160078
European Grayling (Thymallus thymallus) Doubs River, Switzerland, 2004


European grayling (Thymallus thymallus) under waterfall waiting for drift food, Sava river, Slovenia, 2003
01160077
European grayling (Thymallus thymallus) under waterfall waiting for drift food, Sava river, Slovenia, 2003


Minnow (Phoxinus phoxinus) spawning coloration, Europe
01160076
Minnow (Phoxinus phoxinus) spawning coloration, Europe


Perch (Perca fluviatilis) Europe
01160075
Perch (Perca fluviatilis) Europe


European crayfish (Astacus astacus) Europe
01160074
European crayfish (Astacus astacus) Europe


Three Spined Stickleback (Gasterosteus aculeatus) Europe
01160073
Three Spined Stickleback (Gasterosteus aculeatus) Europe


Brown trout (Salmo trutta fario) Europe
01160072
Brown trout (Salmo trutta fario) Europe


Spined loach (Cobitis taenia) Europe
01160071
Spined loach (Cobitis taenia) Europe


White-clawed crayfish (Austropotamobius pallipes)Europe
01160070
White-clawed crayfish (Austropotamobius pallipes)Europe


Twaite shad (Alosa fallax) Europe
01160069
Twaite shad (Alosa fallax) Europe


Chub (Leuciscus cephalus cabeda) adriatic subspecies, europe
01160068
Chub (Leuciscus cephalus cabeda) adriatic subspecies, europe


Freshwater blenny (Salaria / Lipophrys fluviatilis)
Europe
01160067
Freshwater blenny (Salaria / Lipophrys fluviatilis) Europe


Bream (Abramis brama) Europe
01160066
Bream (Abramis brama) Europe


White / Silver bream (Blicca / Abramis bjoerkna)
Europe
01160065
White / Silver bream (Blicca / Abramis bjoerkna) Europe


False harlequin / Stone moroko (Pseudorasbora parva) Europe
01160064
False harlequin / Stone moroko (Pseudorasbora parva) Europe


Bitterling (Rhodeus sericeus amarus) Europe
01160063
Bitterling (Rhodeus sericeus amarus) Europe


Stone loach (Nemacheilus / Barbatula barbatula) Europe
01160062
Stone loach (Nemacheilus / Barbatula barbatula) Europe


Italian barbel (Barbus plebejus)  Europe
01160061
Italian barbel (Barbus plebejus) Europe


Barbel (Barbus barbus) Captive
01160060
Barbel (Barbus barbus) Captive


Brook trout (Salvelinus fontinalis) Europe
01160059
Brook trout (Salvelinus fontinalis) Europe


Brook lamprey (Lampetra planeri) Europe
01160058
Brook lamprey (Lampetra planeri) Europe


Brown trout (Salmo trutta fario) Europe
01160057
Brown trout (Salmo trutta fario) Europe


Atlantic salmon (Salmo salar) Europe
01160056
Atlantic salmon (Salmo salar) Europe


Apron (Zingel asper) Europe
01160055
Apron (Zingel asper) Europe


Chub (Leuciscus cephalus) Europe
01160054
Chub (Leuciscus cephalus) Europe


Italian bleak / Alborella (Alburnus albidus) Europe
01160053
Italian bleak / Alborella (Alburnus albidus) Europe


Agone (Alosa agone) Europe
01160052
Agone (Alosa agone) Europe


European Grayling (Thymallus thymallus) male, spawning coloration, Europe
01160051
European Grayling (Thymallus thymallus) male, spawning coloration, Europe


Eel (Anguilla anguilla), Europe
01160050
Eel (Anguilla anguilla), Europe


Aerial view of research station, Wapusk NP, Manitoba, Canada
01160049
Aerial view of research station, Wapusk NP, Manitoba, Canada


Aerial view of Polar Bear {Ursus maritimus} tracks on sea ice, Wapusk NP, Manitoba, Canada
01160048
Aerial view of Polar Bear {Ursus maritimus} tracks on sea ice, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} biologist holds 3/4-months cub by the scruff while administering an anaesthetic, Wapusk NP, Manitoba, Canada
01160047
Polar Bear {Ursus maritimus} biologist holds 3/4-months cub by the scruff while administering an anaesthetic, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} biologists roping 3/4-months cub to prevent escape after their mother is anaesthetised, Wapusk NP, Manitoba, Canada
01160046
Polar Bear {Ursus maritimus} biologists roping 3/4-months cub to prevent escape after their mother is anaesthetised, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cubs peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
01160045
Polar Bear {Ursus maritimus} 3/4-months cubs peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cubs peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
01160044
Polar Bear {Ursus maritimus} 3/4-months cubs peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cub sleeping on mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
01160043
Polar Bear {Ursus maritimus} 3/4-months cub sleeping on mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cub lying on mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
01160042
Polar Bear {Ursus maritimus} 3/4-months cub lying on mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cub peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
01160041
Polar Bear {Ursus maritimus} 3/4-months cub peeking over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} biologists follow mother and cub tracks from the air by helicopter, Wapusk NP, Manitoba, Canada
01160040
Polar Bear {Ursus maritimus} biologists follow mother and cub tracks from the air by helicopter, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} tracks surrounding kill site on sea ice, Wapusk NP, Manitoba, Canada
01160039
Polar Bear {Ursus maritimus} tracks surrounding kill site on sea ice, Wapusk NP, Manitoba, Canada


Aerial view of Polar Bear {Ursus maritimus} tracks on sea ice, Wapusk NP, Manitoba, Canada
01160038
Aerial view of Polar Bear {Ursus maritimus} tracks on sea ice, Wapusk NP, Manitoba, Canada


Aerial view of Polar Bear {Ursus maritimus} mother and cub tracks on sea ice, Wapusk NP, Manitoba, Canada
01160037
Aerial view of Polar Bear {Ursus maritimus} mother and cub tracks on sea ice, Wapusk NP, Manitoba, Canada


Aerial view of intersecting tracks of Polar Bear {Ursus maritimus} on sea ice, Wapusk NP, Manitoba, Canada
01160036
Aerial view of intersecting tracks of Polar Bear {Ursus maritimus} on sea ice, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} biologist collects fat biopsy from an anaesthetised adult female,
Wapusk NP, Manitoba, Canada
01160035
Polar Bear {Ursus maritimus} biologist collects fat biopsy from an anaesthetised adult female, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} blood sample being collected from an anaesthetised adult female, Wapusk NP, Manitoba, Canada
01160034
Polar Bear {Ursus maritimus} blood sample being collected from an anaesthetised adult female, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub being measured for body length by biologists, Wapusk NP, Manitoba, Canada
01160033
Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub being measured for body length by biologists, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} paw pad of an anaesthetised adult female being examined by biologist, Wapusk NP, Manitoba, Canada
01160032
Polar Bear {Ursus maritimus} paw pad of an anaesthetised adult female being examined by biologist, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub being weighed by biologist Nick Lunn, Wapusk NP, Manitoba, Canada
01160031
Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub being weighed by biologist Nick Lunn, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised mother and 3/4-months triplet cubs with biologist Nick Lunn and graduate student Greg Theimann, Wapusk NP, Manitoba, Canada
01160030
Polar Bear {Ursus maritimus} anaesthetised mother and 3/4-months triplet cubs with biologist Nick Lunn and graduate student Greg Theimann, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} biologist collects a sample of a claw shaving from an anesthetized adult female, Wapusk NP, Manitoba, Canada
01160029
Polar Bear {Ursus maritimus} biologist collects a sample of a claw shaving from an anesthetized adult female, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub with new ear tag, Wapusk NP, Manitoba, Canada
01160028
Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub with new ear tag, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub held by biologist Nick Lunn during examination, Wapusk NP, Manitoba, Canada
01160027
Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub held by biologist Nick Lunn during examination, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cubs roped by biologists to prevent escape after their mother is anaesthetised, Wapusk NP, Manitoba, Canada
01160026
Polar Bear {Ursus maritimus} 3/4-months cubs roped by biologists to prevent escape after their mother is anaesthetised, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} tooth of adult female collected to determine age, Wapusk NP, Manitoba, Canada
01160025
Polar Bear {Ursus maritimus} tooth of adult female collected to determine age, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised adult female wearing radio collar, Wapusk NP, Manitoba, Canada
01160024
Polar Bear {Ursus maritimus} anaesthetised adult female wearing radio collar, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} close up of milky nipple of lactating female, Wapusk NP, Manitoba, Canada
01160023
Polar Bear {Ursus maritimus} close up of milky nipple of lactating female, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} close up of claws of adult female, Wapusk NP, Manitoba, Canada
01160022
Polar Bear {Ursus maritimus} close up of claws of adult female, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} aerial view of mother and 3/4-months cubs as the family rests in daybed during their journey from den to sea ice, Wapusk NP, Manitoba, Canada
01160021
Polar Bear {Ursus maritimus} aerial view of mother and 3/4-months cubs as the family rests in daybed during their journey from den to sea ice, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} adult female at den entrance, Wapusk NP, Manitoba, Canada
01160020
Polar Bear {Ursus maritimus} adult female at den entrance, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} mother and 3/4- months cub leaving den in spring, Wapusk NP, Manitoba, Canada
01160019
Polar Bear {Ursus maritimus} mother and 3/4- months cub leaving den in spring, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} adult female leaving den in spring, Wapusk NP, Manitoba, Canada
01160018
Polar Bear {Ursus maritimus} adult female leaving den in spring, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub and mother, Wapusk NP, Manitoba, Canada
01160017
Polar Bear {Ursus maritimus} anaesthetised 3/4-months cub and mother, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} 3/4-months cub huddled over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada
(Digitally removed mother's ear tags)
01160016
Polar Bear {Ursus maritimus} 3/4-months cub huddled over mother who has been anaesthetised by biologists, Wapusk NP, Manitoba, Canada (Digitally removed mother's ear tags)


Polar Bear {Ursus maritimus} View of den from above, Wapusk NP, Manitoba, Canada
01160015
Polar Bear {Ursus maritimus} View of den from above, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} tracks of mother and 3/4-months triplet cubs as they travel from den to sea ice, Wapusk NP, Manitoba, Canada
01160014
Polar Bear {Ursus maritimus} tracks of mother and 3/4-months triplet cubs as they travel from den to sea ice, Wapusk NP, Manitoba, Canada


Polar Bear {Ursus maritimus} cub curled up on mother, Wapusk NP, Manitoba, Canada
01160013
Polar Bear {Ursus maritimus} cub curled up on mother, Wapusk NP, Manitoba, Canada


Bullhead portrait (Cottus gobio) in sand winning pit, Holland
01160012
Bullhead portrait (Cottus gobio) in sand winning pit, Holland


Spined loach (Cobitis taenia) in sand winning pit,  Holland
01160011
Spined loach (Cobitis taenia) in sand winning pit, Holland


Stone loach (Nemacheilus barbatula) in brook in Holland
01160010
Stone loach (Nemacheilus barbatula) in brook in Holland


Stone loach (Nemacheilus barbatula) in brook in Holland
01160009
Stone loach (Nemacheilus barbatula) in brook in Holland


Stone loach (Nemacheiulus barbatula) and Great pond snail (Lymnaea stagnalis) in brook in Holland
01160008
Stone loach (Nemacheiulus barbatula) and Great pond snail (Lymnaea stagnalis) in brook in Holland


Stone loach (Nemacheiulus barbatula) and Stickleback fish in brook in Holland
01160007
Stone loach (Nemacheiulus barbatula) and Stickleback fish in brook in Holland


Tench (Tinca tinca) in sand winning pit, Holland
01160006
Tench (Tinca tinca) in sand winning pit, Holland


Bream (Abramis brama) caught in fish trap, IJsselmeer, Holland
01160005
Bream (Abramis brama) caught in fish trap, IJsselmeer, Holland


Bream (Abramis brama) underwater in sand winning pit at mating season, Holland
01160004
Bream (Abramis brama) underwater in sand winning pit at mating season, Holland


Perch (Perca fluviatilis) swimming between Greater bladderwort (Utricularia vulgaris) Lake Naarden, Holland
01160003
Perch (Perca fluviatilis) swimming between Greater bladderwort (Utricularia vulgaris) Lake Naarden, Holland


Shoal of Perch (Perca fluviatilis) in sand winning pit, Holland
01160002
Shoal of Perch (Perca fluviatilis) in sand winning pit, Holland


Silhouettes of Perch (Perca fluviatilis) under a submerged tree, sand winning pit, Holland
01160001
Silhouettes of Perch (Perca fluviatilis) under a submerged tree, sand winning pit, Holland


Shoal of Perch (Perca fluviatilis) Lake Naarden, Holland
01160000
Shoal of Perch (Perca fluviatilis) Lake Naarden, Holland


Shoal of Perch (Perca fluviatilis) sheltering in submerged motorcar, sand winning pit, Holland
01159999
Shoal of Perch (Perca fluviatilis) sheltering in submerged motorcar, sand winning pit, Holland


Shoal of very young Perch (Perca fluviatilis) sand winning pit, Holland
01159998
Shoal of very young Perch (Perca fluviatilis) sand winning pit, Holland


Close up of Perch eggs (Perca fluviatilis) showing tiny larvae, sand winning pit, Holland
01159997
Close up of Perch eggs (Perca fluviatilis) showing tiny larvae, sand winning pit, Holland


Perch eggs (Perca fluviatilis) hanging amongst reedstems, sand winning pit, Holland
01159996
Perch eggs (Perca fluviatilis) hanging amongst reedstems, sand winning pit, Holland


Perch (Perca fluviatilis) Holland
01159995
Perch (Perca fluviatilis) Holland


Face portrait of European eel (Anguilla anguilla) sand winning pit, Holland
01159994
Face portrait of European eel (Anguilla anguilla) sand winning pit, Holland


Young Pike (Esox lucius) stripes on skin provide good camouflage against Canadian waterweed (Elodea canadensis) sand winning pit, Holland
01159993
Young Pike (Esox lucius) stripes on skin provide good camouflage against Canadian waterweed (Elodea canadensis) sand winning pit, Holland


Pike (Esox lucius) hiding under submerged motorcar, sand winning pit, Holland
01159992
Pike (Esox lucius) hiding under submerged motorcar, sand winning pit, Holland


Pike (Esox lucius) hiding under submerged farm cart, sand winning pit, Holland
01159991
Pike (Esox lucius) hiding under submerged farm cart, sand winning pit, Holland


Adult Pike portrait (Esox lucius) sand winning pit, Holland
01159990
Adult Pike portrait (Esox lucius) sand winning pit, Holland


Juvenile Pike (Esox lucius) has little Perch prey (Perca fluviatilis) in its mouth but in the wrong position, it will need to turn it before it can swallow it, sand winning pit, Holland
01159989
Juvenile Pike (Esox lucius) has little Perch prey (Perca fluviatilis) in its mouth but in the wrong position, it will need to turn it before it can swallow it, sand winning pit, Holland


Close up of Pike eye (Esox lucius) nostril is visible on left hand side of image, sand winning pit, Holland
01159988
Close up of Pike eye (Esox lucius) nostril is visible on left hand side of image, sand winning pit, Holland


Young Pike (Esox lucius) stripes on skin provide good camouflage between the reedstems, sand winning pit, Holland
01159987
Young Pike (Esox lucius) stripes on skin provide good camouflage between the reedstems, sand winning pit, Holland


Pike (Esox lucius) swimming amongst Common frog tadpoles (Rana temporaria) and reed stems in little peat-bog lake, Holland
01159986
Pike (Esox lucius) swimming amongst Common frog tadpoles (Rana temporaria) and reed stems in little peat-bog lake, Holland


Pike (Esox lucius) amongst reed stems in little peat-bog lake, Holland
01159985
Pike (Esox lucius) amongst reed stems in little peat-bog lake, Holland


Young Pike (Esox lucius) stripes on skin provide good camouflage between the reedstems, sand winning pit, Holland
01159984
Young Pike (Esox lucius) stripes on skin provide good camouflage between the reedstems, sand winning pit, Holland


Very young Smooth newt larva (Triturus vulgaris) external gills visible, underwater in sand winning pit, Holland
01159983
Very young Smooth newt larva (Triturus vulgaris) external gills visible, underwater in sand winning pit, Holland


Male Smooth newt (Triturus vulgaris) in sand winning pit, Holland
01159982
Male Smooth newt (Triturus vulgaris) in sand winning pit, Holland