698 pictures found
© David Tipling / Biosphoto
Osprey fishing a trout - Scotland UK
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Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from a young Atlantic
© Paulo de Oliveira / Biosphoto
© Paulo de Oliveira / Biosphoto
Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from a young Atlantic salmon, Salmon salar, on salmon farm. Lumpfish is a species of cleaner fish, so called due to its natural behaviour removing and eating skin parasites from other species of fish.Sea lice are naturally occurring ectoparasitic copepods that attach themselves to marine fish and feed on mucus, skin and blood of their host. The salmon louse - Lepeophtheirus salmonis is of particular concern as it causes major health issues for farmed salmon including fin damage, skin erosion, wounds and a reduction in overall health and performance. If sea lice numbers are sufficient death can also occur. The treatment of them is currently dependent on a range of anti-parasitic chemical treatments, both bath and in-feed. The continued reliance and discharge of these chemicals combined with concerns about increasing resistance to their efficacy has led the salmon farming industry to introduce biological sea lice control with the use of cleaner fish that eat the sea lice from the salmons skin. Ballan wrasse and lumpfish are the predominant species used as cleaner fish, with a current heavy demand placed on wild capture fisheries to fulfil this demand despite the advent of farming for both species. Cleaner-fish, such as wrasse or lumpfish, live in the same cages as salmon where they attack and eat parasitic sea lice. generally have to be put into the cages in a ratio of 2 to 3 wrasses for 100 salmon. These cleaner fishes are used regularly to control sea lice on salmon farms in Scotland, Ireland and Norway.
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Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from Atlantic salmon, Salmon salar, on salmon farm. Lumpfish is a
© Paulo de Oliveira / Biosphoto
© Paulo de Oliveira / Biosphoto
Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from Atlantic salmon, Salmon salar, on salmon farm. Lumpfish is a species of cleaner fish, so called due to its natural behaviour removing and eating skin parasites from other species of fish.Sea lice are naturally occurring ectoparasitic copepods that attach themselves to marine fish and feed on mucus, skin and blood of their host. The salmon louse - Lepeophtheirus salmonis is of particular concern as it causes major health issues for farmed salmon including fin damage, skin erosion, wounds and a reduction in overall health and performance. If sea lice numbers are sufficient death can also occur. The treatment of them is currently dependent on a range of anti-parasitic chemical treatments, both bath and in-feed. The continued reliance and discharge of these chemicals combined with concerns about increasing resistance to their efficacy has led the salmon farming industry to introduce biological sea lice control with the use of cleaner fish that eat the sea lice from the salmons skin. Ballan wrasse and lumpfish are the predominant species used as cleaner fish, with a current heavy demand placed on wild capture fisheries to fulfil this demand despite the advent of farming for both species. Cleaner-fish, such as wrasse or lumpfish, live in the same cages as salmon where they attack and eat parasitic sea lice. generally have to be put into the cages in a ratio of 2 to 3 wrasses for 100 salmon. These cleaner fishes are used regularly to control sea lice on salmon farms in Scotland, Ireland and Norway.
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Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from Atlantic
© Paulo de Oliveira / Biosphoto
© Paulo de Oliveira / Biosphoto
Lumpsucker or lumpfish, Cyclopterus lumpus, eating salmon louses, Lepeophtheirus salmonis, from Atlantic salmon, Salmon salar, on salmon farm. Lumpfish is a species of cleaner fish, so called due to its natural behaviour removing and eating skin parasites from other species of fish.Sea lice are naturally occurring ectoparasitic copepods that attach themselves to marine fish and feed on mucus, skin and blood of their host. The salmon louse - Lepeophtheirus salmonis is of particular concern as it causes major health issues for farmed salmon including fin damage, skin erosion, wounds and a reduction in overall health and performance. If sea lice numbers are sufficient death can also occur. The treatment of them is currently dependent on a range of anti-parasitic chemical treatments, both bath and in-feed. The continued reliance and discharge of these chemicals combined with concerns about increasing resistance to their efficacy has led the salmon farming industry to introduce biological sea lice control with the use of cleaner fish that eat the sea lice from the salmons skin. Ballan wrasse and lumpfish are the predominant species used as cleaner fish, with a current heavy demand placed on wild capture fisheries to fulfil this demand despite the advent of farming for both species. Cleaner-fish, such as wrasse or lumpfish, live in the same cages as salmon where they attack and eat parasitic sea lice. generally have to be put into the cages in a ratio of 2 to 3 wrasses for 100 salmon. These cleaner fishes are used regularly to control sea lice on salmon farms in Scotland, Ireland and Norway.
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Truites arc-en-ciel (Oncorhynchus mykiss), dans un bassin de la pisciculture bio du Mas de Pommiers, sur la commune de Nant, Aveyron, Occitanie,
© Mathieu Foulquié / Biosphoto
© Mathieu Foulquié / Biosphoto
Truites arc-en-ciel (Oncorhynchus mykiss), dans un bassin de la pisciculture bio du Mas de Pommiers, sur la commune de Nant, Aveyron, Occitanie, France
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The brown trout (Salmo trutta) is a European species of salmonidfish that has been widely introduced into suitable environments globally. captive in
© Franco Banfi / Biosphoto
© Franco Banfi / Biosphoto
The brown trout (Salmo trutta) is a European species of salmonidfish that has been widely introduced into suitable environments globally. captive in Parco del Ticino, Biosphere Reserve, Lombardia, Italy.
© Franco Banfi / Biosphoto
The brown trout (Salmo trutta) is a European species of salmonidfish that has been widely introduced into suitable environments globally. captive in Parco del Ticino, Biosphere Reserve, Lombardia, Italy.
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The brown trout (Salmo trutta) is a European species of salmonidfish that has been widely introduced into suitable environments globally. captive in
© Franco Banfi / Biosphoto
© Franco Banfi / Biosphoto
The brown trout (Salmo trutta) is a European species of salmonidfish that has been widely introduced into suitable environments globally. captive in Parco del Ticino, Biosphere Reserve, Lombardia, Italy.
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Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Thur river, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Cusansin river Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Cusansin river Doubs, Franche Comté, France
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Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, Cusancin River, Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, Cusancin River, Doubs, Franche Comté, France
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Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, Cusancin River, Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, Cusancin River, Doubs, Franche Comté, France
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Brown trout (Salmo trutta fario), Doller river, Fly fishing, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Doller river, Fly fishing, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario) catch, Doller river, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario) catch, Doller river, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario) Wild trout in a landing net, Fly fishing, Riviere Thur, Haut Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario) Wild trout in a landing net, Fly fishing, Riviere Thur, Haut Rhin, Alsace, France
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Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Doubs, Franche Comté, France
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Fario trout (Salmo trutta fario), Wild trout of Mediterranean stock, fly fishing, Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fario trout (Salmo trutta fario), Wild trout of Mediterranean stock, fly fishing, Doubs, Franche Comté, France
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Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Cusansin river Doubs, Franche Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), wild trout of Mediterranean stock, fly fishing, Cusansin river Doubs, Franche Comté, France
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Trout caught in Lac des Grenouilles (1997m) on the opening day of fishing, Lake trout (Salmo trutta lacustris), Fontanalba valley, Roya valley,
© Michel Cavalier / Biosphoto
© Michel Cavalier / Biosphoto
Trout caught in Lac des Grenouilles (1997m) on the opening day of fishing, Lake trout (Salmo trutta lacustris), Fontanalba valley, Roya valley, Casterino, Mercantour National Park, Alpes-Maritimes, France
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Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught in fishing, Haut-Rhin, Alsace, France
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Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught in fishing, Haut-Rhin, Alsace, France
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Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
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Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
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Fly fishing, Presentation of a large brown trout (Salmo trutta
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
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Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught in fishing, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), Fly fishing, Wild trout caught in fishing, Haut-Rhin, Alsace, France
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Fly fishing, Presentation of a large brown trout (Salmo trutta
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Presentation of a large brown trout (Salmo trutta fario), Doller Valley, Haut-Rhin, Alsace, France
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Brown trout (Salmo trutta fario), spawning, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Brown trout (Salmo trutta fario), spawning, Haut-Rhin, Alsace, France
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Fly fishing, Capture of a Brown trout (Salmo trutta fario), Thur river, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Capture of a Brown trout (Salmo trutta fario), Thur river, Haut-Rhin, Alsace, France
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Fly fishing, Capture of a Brown trout (Salmo trutta fario), Thur
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing, Capture of a Brown trout (Salmo trutta fario), Thur river, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss, Presentation of a fario trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss, Presentation of a fario trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss river, Capture of a brown trout (Salmo
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss river, Capture of a brown trout (Salmo
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss river, Capture of a brown trout (Salmo
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing on the Weiss river, Capture of a brown trout (Salmo
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing on the Weiss river, Capture of a brown trout (Salmo trutta fario), Kaysersberg, Haut-Rhin, Alsace, France
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Fly fishing in a reservoir, Presentation of a rainbow trout (Oncorhynchus mykiss or Salmo gairdneri), Moselle, Lorraine, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Fly fishing in a reservoir, Presentation of a rainbow trout (Oncorhynchus mykiss or Salmo gairdneri), Moselle, Lorraine, France
© Bruno Mathieu / Biosphoto
Fly fishing in a reservoir, Presentation of a rainbow trout (Oncorhynchus mykiss or Salmo gairdneri), Moselle, Lorraine, France
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Atlantic Salmon (Salmo salar) fishing, Great River, Salmon River, Chaleur Bay, Gaspesie, Quebec, Canada
© Jean-Paul Chatagnon / Biosphoto
© Jean-Paul Chatagnon / Biosphoto
Atlantic Salmon (Salmo salar) fishing, Great River, Salmon River, Chaleur Bay, Gaspesie, Quebec, Canada
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Hatchery raised juvenile Rainbow Trout (Oncorhynchus mykiss), Santa Barbara County, California.
© Stuart Wilson / Biosphoto
© Stuart Wilson / Biosphoto
Hatchery raised juvenile Rainbow Trout (Oncorhynchus mykiss), Santa Barbara County, California.
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River trout (Salmo trutta fario) young trout in the river Dourbie, downstream of Nant, Aveyron, Occitanie, France
© Mathieu Foulquié / Biosphoto
© Mathieu Foulquié / Biosphoto
River trout (Salmo trutta fario) young trout in the river Dourbie, downstream of Nant, Aveyron, Occitanie, France
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Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
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Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
© Bruno Mathieu / Biosphoto
Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
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Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Trout fishing on the Doubs river, Catch a big wild trout, Goumois, Doubs, Franche-Comté, France
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Trout fishing on the Loue river, Presentation of a wild trout (Salmo trutta fario), Franche-Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Trout fishing on the Loue river, Presentation of a wild trout (Salmo trutta fario), Franche-Comté, France
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Trout fishing on the Loue river, fly fishing, Franche-Comté, France
© Bruno Mathieu / Biosphoto
© Bruno Mathieu / Biosphoto
Trout fishing on the Loue river, fly fishing, Franche-Comté, France