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Mallard duck (Anas platyrhynchos) dead following the presence of cyanobacteria present in the Rance river in Saint-Samson-Sur-Rance, Brittany, FranceMallard duck (Anas platyrhynchos) dead following the presence of cyanobacteria present in the Rance river in Saint-Samson-Sur-Rance, Brittany, FranceMallard duck (Anas platyrhynchos) dead following the presence of cyanobacteria present in the Rance river in Saint-Samson-Sur-Rance, Brittany, France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Mallard duck (Anas platyrhynchos) dead following the presence of

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Information panel concerning the presence of cyanobacteria in the Rance river in Saint-Samson-Sur-Rance, Brittany, FranceInformation panel concerning the presence of cyanobacteria in the Rance river in Saint-Samson-Sur-Rance, Brittany, FranceInformation panel concerning the presence of cyanobacteria in the Rance river in Saint-Samson-Sur-Rance, Brittany, France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Information panel concerning the presence of cyanobacteria in the

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Valais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, FranceValais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, FranceValais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Valais beach closed to the public following the proliferation of

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Valais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, FranceValais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, FranceValais beach closed to the public following the proliferation of green algae: Ulvale (Ulva armoricana) in Saint-Brieuc, Brittany, France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Valais beach closed to the public following the proliferation of

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Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.© Laurent Lhoté / BiosphotoJPG - RM

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Boats on Lake Titicaca and green algae due to pollution, Puno,

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Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.Boats on Lake Titicaca and green algae due to pollution, Puno, Peru.© Laurent Lhoté / BiosphotoJPG - RM

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Boats on Lake Titicaca and green algae due to pollution, Puno,

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Polluted river, covered with invasive aquatic plants: Water hyacinths (Eichhornia crassipes) and Common mare's-tail (Hippuris vulgaris), PortugalPolluted river, covered with invasive aquatic plants: Water hyacinths (Eichhornia crassipes) and Common mare's-tail (Hippuris vulgaris), PortugalPolluted river, covered with invasive aquatic plants: Water hyacinths (Eichhornia crassipes) and Common mare's-tail (Hippuris vulgaris), Portugal© Jean-Philippe Delobelle / BiosphotoJPG - RM

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Polluted river, covered with invasive aquatic plants: Water

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Thread algae growing on Cryptocorynes in aquariumThread algae growing on Cryptocorynes in aquariumThread algae growing on Cryptocorynes in aquarium© Aqua Press / BiosphotoJPG - RMNon exclusive sale

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Thread algae growing on Cryptocorynes in aquarium

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Thread algae in aquariumThread algae in aquariumThread algae in aquarium© Aqua Press / BiosphotoJPG - RMNon exclusive sale

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Thread algae in aquarium

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Thread algae growing on aquarium plantThread algae growing on aquarium plantThread algae growing on aquarium plant© Aqua Press / BiosphotoJPG - RMNon exclusive sale

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Thread algae growing on aquarium plant

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River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.© Jean-Philippe Delobelle / BiosphotoJPG - RM

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River polluted at low water. Seran river, in Bugey, Ain, France -

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Bacteria and dead leaves on a polluted river. The Seran, in Bugey, Ain, France. Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.Bacteria and dead leaves on a polluted river. The Seran, in Bugey, Ain, France. Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.Bacteria and dead leaves on a polluted river. The Seran, in Bugey, Ain, France. Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.© Jean-Philippe Delobelle / BiosphotoJPG - RM

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Bacteria and dead leaves on a polluted river. The Seran, in

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River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.River polluted at low water. Seran river, in Bugey, Ain, France - Very high summer season due to various water withdrawals and drought. The presence of nitrates and phosphates causes proliferation of algae and bacteria.© Jean-Philippe Delobelle / BiosphotoJPG - RM

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River polluted at low water. Seran river, in Bugey, Ain, France -

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Green algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, FranceGreen algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, FranceGreen algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, France© Frédéric Tournay / BiosphotoJPG - RM

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Green algae (Ulva spp) at the exit of a channeled creek, Porz

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Green algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, FranceGreen algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, FranceGreen algae (Ulva spp) at the exit of a channeled creek, Porz Scaff, Plougrescant, Côtes-d'Armor, Brittany, France© Frédéric Tournay / BiosphotoJPG - RM

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Green algae (Ulva spp) at the exit of a channeled creek, Porz

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Green algae (Ulva spp), Bréhec cove, Plouha, Côtes-d'Armor, Bretagne, FranceGreen algae (Ulva spp), Bréhec cove, Plouha, Côtes-d'Armor, Bretagne, FranceGreen algae (Ulva spp), Bréhec cove, Plouha, Côtes-d'Armor, Bretagne, France© Frédéric Tournay / BiosphotoJPG - RM

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Green algae (Ulva spp), Bréhec cove, Plouha, Côtes-d'Armor,

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Dessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, FranceDessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, FranceDessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, France© Bruno Mathieu / BiosphotoJPG - RM

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Dessoubre river in a state of eutrophication, Agricultural

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Dessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, FranceDessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, FranceDessoubre river in a state of eutrophication, Agricultural pollution, Dessoubre, Doubs, Franche-Comté, France© Bruno Mathieu / BiosphotoJPG - RM

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Dessoubre river in a state of eutrophication, Agricultural

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Pond scum, possibly the unicellular protist Euglena, changes color during the day, Virginia, USAPond scum, possibly the unicellular protist Euglena, changes color during the day, Virginia, USAPond scum, possibly the unicellular protist Euglena, changes color during the day, Virginia, USA© John Cancalosi / BiosphotoJPG - RMSale prohibited in Spain and Portugal
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Pond scum, possibly the unicellular protist Euglena, changes

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Pollution and proliferation of green algae on Lake Pichola in Udaipur due to domestic discharges, wastewater and miscellaneous household waste, Rajasthan, IndiaPollution and proliferation of green algae on Lake Pichola in Udaipur due to domestic discharges, wastewater and miscellaneous household waste, Rajasthan, IndiaPollution and proliferation of green algae on Lake Pichola in Udaipur due to domestic discharges, wastewater and miscellaneous household waste, Rajasthan, India© Laurent Lhoté / BiosphotoJPG - RM

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Pollution and proliferation of green algae on Lake Pichola in

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Proliferation of green algae on the banks of the Adour river in Anglet (64). Factories and port of Bayonne on the other shore side Tarnos (40).Proliferation of green algae on the banks of the Adour river in Anglet (64). Factories and port of Bayonne on the other shore side Tarnos (40).Proliferation of green algae on the banks of the Adour river in Anglet (64). Factories and port of Bayonne on the other shore side Tarnos (40).© Laurent Lhoté / BiosphotoJPG - RM

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Proliferation of green algae on the banks of the Adour river in

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Dock on Lake Titicaca - Puno Peru Dock on Lake Titicaca - Puno Peru Dock on Lake Titicaca - Puno Peru © Laurent Lhoté / BiosphotoJPG - RM

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Dock on Lake Titicaca - Puno Peru

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Alder and Duckweed - Swamp Quellen Brittany France Alder and Duckweed - Swamp Quellen Brittany France Alder and Duckweed - Swamp Quellen Brittany France © Nicolas-Alain Petit / BiosphotoJPG - RM

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Alder and Duckweed - Swamp Quellen Brittany France

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Channel in the swamp - Charente-Maritime France Channel in the swamp - Charente-Maritime France Channel in the swamp - Charente-Maritime France © Nicolas-Alain Petit / BiosphotoJPG - RM

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Channel in the swamp - Charente-Maritime France

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia © Alain Mafart-Renodier / BiosphotoJPG - RMNon exclusive sale

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia © Alain Mafart-Renodier / BiosphotoJPG - RMNon exclusive sale

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia Lagoon polluted Lamberts Bay Atlantic Coast Nambia © Alain Mafart-Renodier / BiosphotoJPG - RMNon exclusive sale

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Lagoon polluted Lamberts Bay Atlantic Coast Nambia

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Green algae polluting storage in a field Britain FranceGreen algae polluting storage in a field Britain FranceGreen algae polluting storage in a field Britain France© José Kalpers / BiosphotoJPG - RM

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Green algae polluting storage in a field Britain France

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Green algae Bay of Douarnenez FranceGreen algae Bay of Douarnenez FranceGreen algae Bay of Douarnenez France© Pascal Greboval / BiosphotoJPG - RM

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Green algae Bay of Douarnenez France

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Backwater of the Lorraine River during dry summer FranceBackwater of the Lorraine River during dry summer FranceBackwater of the Lorraine River during dry summer France© Robin Monchâtre / BiosphotoJPG - RM

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Backwater of the Lorraine River during dry summer France

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Cleaning Green algae Beach of Saint-Michel-en-Greve France ; The algae are collected ready to be picked Cleaning Green algae Beach of Saint-Michel-en-Greve FranceCleaning Green algae Beach of Saint-Michel-en-Greve France ; The algae are collected ready to be picked © Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Cleaning Green algae Beach of Saint-Michel-en-Greve France ; The

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Cleaning Green algae Beach of Saint-Michel-en-Greve France ; The algae are collected ready to be picked Cleaning Green algae Beach of Saint-Michel-en-Greve FranceCleaning Green algae Beach of Saint-Michel-en-Greve France ; The algae are collected ready to be picked © Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Cleaning Green algae Beach of Saint-Michel-en-Greve France ; The

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Beach of Saint-Michel-en-Greve cleaned green algae ; The algae are collected ready to be picked Beach of Saint-Michel-en-Greve cleaned green algaeBeach of Saint-Michel-en-Greve cleaned green algae ; The algae are collected ready to be picked © Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Beach of Saint-Michel-en-Greve cleaned green algae ; The algae

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Collection of green algae range Saint-Michel-en-GreveCollection of green algae range Saint-Michel-en-GreveCollection of green algae range Saint-Michel-en-Greve© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of green algae range Saint-Michel-en-Greve

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Collection of green algae range Saint-Michel-en-GreveCollection of green algae range Saint-Michel-en-GreveCollection of green algae range Saint-Michel-en-Greve© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of green algae range Saint-Michel-en-Greve

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Algae in a canal in the Camargue FranceAlgae in a canal in the Camargue FranceAlgae in a canal in the Camargue France© Jean-Philippe Vantighem / BiosphotoJPG - RM

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Algae in a canal in the Camargue France

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Algae in a canal in the Camargue FranceAlgae in a canal in the Camargue FranceAlgae in a canal in the Camargue France© Jean-Philippe Vantighem / BiosphotoJPG - RM

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Algae in a canal in the Camargue France

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Algae picked up in the Doubs River FranceAlgae picked up in the Doubs River FranceAlgae picked up in the Doubs River France© Dominique Delfino / BiosphotoJPG - RM

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Algae picked up in the Doubs River France

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Information panel on green algae in Brittany FranceInformation panel on green algae in Brittany FranceInformation panel on green algae in Brittany France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Information panel on green algae in Brittany France

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Storage of polluting green algae in a field Brittany FranceStorage of polluting green algae in a field Brittany FranceStorage of polluting green algae in a field Brittany France© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Storage of polluting green algae in a field Brittany France

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Collection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach Brittany© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of polluting green algae on a beach Brittany

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Collection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach Brittany© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of polluting green algae on a beach Brittany

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Collection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach Brittany© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of polluting green algae on a beach Brittany

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Collection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach Brittany© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of polluting green algae on a beach Brittany

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Collection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach BrittanyCollection of polluting green algae on a beach Brittany© Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Collection of polluting green algae on a beach Brittany

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Machine to pick up the green algae Britain France Machine to pick up the green algae Britain France Machine to pick up the green algae Britain France © Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Machine to pick up the green algae Britain France 

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Machine to pick up the green algae Britain France Machine to pick up the green algae Britain France Machine to pick up the green algae Britain France © Jean-Luc & Françoise Ziegler / BiosphotoJPG - RM

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Machine to pick up the green algae Britain France 

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Proliferation of green algae Bay of St Brieuc FranceProliferation of green algae Bay of St Brieuc FranceProliferation of green algae Bay of St Brieuc France© Muriel Hazan / BiosphotoJPG - RM

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Proliferation of green algae Bay of St Brieuc France

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Grayling died from a proliferation of cyanobacteria FranceGrayling died from a proliferation of cyanobacteria FranceGrayling died from a proliferation of cyanobacteria France© Bruno Mathieu / BiosphotoJPG - RM

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Grayling died from a proliferation of cyanobacteria France

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Grayling died from a proliferation of cyanobacteria FranceGrayling died from a proliferation of cyanobacteria FranceGrayling died from a proliferation of cyanobacteria France© Bruno Mathieu / BiosphotoJPG - RM

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Grayling died from a proliferation of cyanobacteria France

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