Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Michel Roggo / European Grayling (Thymallus thymallus), Male, Aare river, Switzerland, 2005
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Michel Roggo / European Grayling (Thymallus thymallus) waiting for drift food, Sava river, Slovenia, 2004
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Michel Roggo / European grayling (Thymallus thymallus) under waterfall waiting for drift food, Sava river, Slovenia, 2003
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Michel Roggo / European Grayling (Thymallus thymallus) feeding, River Koridnica, Slovenia, 1999
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Michel Roggo / European Grayling (Thymallus thymallus), Males at spawning ground, Lake of Thoune, Switzerland, 1992
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Michel Roggo / European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992
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Michel Roggo / European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) pair spawning, the dark one is the male, Lake Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) Ain river, France, June 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevin, 18 days, feeding on zooplankton, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) Sava river, Slovenia, June 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) eggs, 17 days, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevin, 13 days, feeding on zooplankton, from Lake Thun, Thun, Switzerland, captive, April 2009 Wild Wonders kids book.
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) eggs, 9 days, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / Male European grayling (Thymallus thymallus) on spawning ground, Lake of Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) just after spawning, male in front, Lake of Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) pair spawning, male on the left, Lake of Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevins, 4 days, from Lake Thun, Thun, Switzerland, captive, April 2009
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Paul Hobson / European grayling {Thymallus thymallus} UK
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Michel Roggo / Arctic Grayling (Thymallus arcticus), feeding on drift food in the entrance of a tributary, Netson Lake, Muskwa-Kechika Protected Area, Northern Rockies, British Columbia, Canada, July.
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Michel Roggo / Arctic Grayling (Thymallus arcticus), feeding on drift food in the entrance of a tributary, Netson Lake, Muskwa-Kechika Protected Area, Northern Rockies, British Columbia, Canada, July.
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Michel Roggo / Arctic Grayling (Thymallus arcticus), feeding on drift food in the entrance of a tributary, Netson Lake, Muskwa-Kechika Protected Area, Northern Rockies, British Columbia, Canada, July.
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Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Michel Roggo / Grayling (Thymallus thymallus) on spawning ground. Lac de Fenetre, alpine lake, 2456 m above sea level, Canton of Valais, Switzerland, June.
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Wild Wonders of Europe / Möllers / Man pulling in a European grayling (Thymallus thymallus) from the San River, Myczkowce, Poland, September 2011 Model released
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Wild Wonders of Europe / Möllers / Man pulling in a European grayling (Thymallus thymallus) from the San River, Myczkowce, Poland, September 2011 Model released
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Florian Möllers / Fish biologists holding a Grayling (Thymallus thymallus) needed for artificial insemination and breeding. River Pielach, southwest of Munich, Bavaria, Germany, March.
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Florian Möllers / Fish biologists returning caught Grayling (Thymallus thymallus) for artificial insemination and breeding. River Pielach, southwest of Munich, Bavaria, Germany, March.
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Michel Roggo / European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005
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Michel Roggo / European Grayling (Thymallus thymallus) male, spawning coloration, Europe
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Michel Roggo / European Grayling (Thymallus thymallus), Under waterfall waiting for drift food, Baca river, Slovenia, 2006
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Michel Roggo / European Grayling (Thymallus thymallus), Aare river, Switzerland, 2005
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Michel Roggo / European Grayling (Thymallus thymallus) Doubs River, Switzerland, 2004
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Michel Roggo / European Grayling (Thymallus thymallus) egg with alevin visible inside, hatchery from Lake of Thoune, Switzerland, 1991. Captive
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Michel Roggo / European Graylings (Thymallus thymallus) spawning, male in foreground, Lake of Thoune, Switzerland, 1992
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Michel Roggo / European Grayling (Thymallus thymallus) Female, spawning period, Europe
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Michel Roggo / European Grayling (Thymallus thymallus) Female (front) with two males at spawning ground, Lake of Thoune, Switzerland, 1992
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Michel Roggo / European Grayling (Thymallus thymallus) Juvenile, Europe
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Wild Wonders of Europe / Roggo / Male European grayling (Thymallus thymallus) on spawning ground, Lake of Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) pair, male on the right, at spawning ground, Lake Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / Two European grayling (Thymallus thymallus) males in spawning area, Lake Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevin, 4 days, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) eggs, 9 days, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) pair on spawning ground, male (dark) Lake Thun, Thun, Switzerland, March 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevins, 18 days, feeding on zooplankton, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevins, 1 day old, with yolk sacs, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) alevin, 13 days, from Lake Thun, Switzerland, captive, April 2009
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Wild Wonders of Europe / Roggo / European grayling (Thymallus thymallus) eggs, 9 days, from Lake Thun, Switzerland, captive, April 2009
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Paul Hobson / European grayling {Thymallus thymallus} UK
