Long snouted seahorse (Hippocampus guttulatus) in captive breeding laboratory at University of Algarve, Portugal. June 2010. Overall winner of the Underwater Photographer of the Year competition 2015.  -  Nuno  Sa
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Nuno Sa / Long snouted seahorse (Hippocampus guttulatus) in captive breeding laboratory at University of Algarve, Portugal. June 2010. Overall winner of the Underwater Photographer of the Year competition 2015.
Whale Shark (Rhincodon typus) passing by baitball, Santa Maria Island, Azores, Portugal, September 2008.  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) passing by baitball, Santa Maria Island, Azores, Portugal, September 2008.
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Sperm Whale (Physeter macrocephalus) calf swimming uder its mother. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) calf swimming uder its mother. Sao Miguel Island, Azores, July.
Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.
Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Blue Shark (Prionace glauca) near sea surface and divers in background. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface and divers in background. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) with diver in background. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) with diver in background. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) near sea surface. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.
Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.
Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.
Blue Sharks (Prionace glauca) at the sea surface. Santa Maria, Azores, August.  -  Nuno Sa
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Nuno Sa / Blue Sharks (Prionace glauca) at the sea surface. Santa Maria, Azores, August.
Great Blue Shark (Prionace glauca), dorsal view against dark water. Over 20 million Blue Sharks are fished annually, as bycatch and due to the high value of their fins. Azores, North Atlantic, Septemb...  -  Nuno Sa
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Nuno Sa / Great Blue Shark (Prionace glauca), dorsal view against dark water. Over 20 million Blue Sharks are fished annually, as bycatch and due to the high value of their fins. Azores, North Atlantic, Septemb...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372248
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372247
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372246
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372245
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372244
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...  -  Nuno Sa
01372243
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...  -  Nuno Sa
01372241
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...
Whale Shark (Rhincodon typus) accompanied by divers. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Santa Maria Island, Azore...  -  Nuno Sa
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Nuno Sa / Whale Shark (Rhincodon typus) accompanied by divers. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Santa Maria Island, Azore...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...  -  Nuno Sa
01372239
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...  -  Nuno Sa
01372238
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...
Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...  -  Nuno Sa
01372237
Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...
Sperm Whale (Physeter macrocephalus) female and calf. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) female and calf. Sao Miguel Island, Azores, July.
Sperm Whale (Physeter macrocephalus) female and calf. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) female and calf. Sao Miguel Island, Azores, July.
Sperm Whale (Physeter macrocephalus) female with calf in background. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) female with calf in background. Sao Miguel Island, Azores, July.
Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.
Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.  -  Nuno Sa
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Nuno Sa / Sperm Whale (Physeter macrocephalus) group of females with calves. Sao Miguel Island, Azores, July.
Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
01372229
Nuno Sa / Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Remora. Santa Maria Island, Azores, September.  -  Nuno Sa
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Nuno Sa / Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Remora. Santa Maria Island, Azores, September.
Blue Shark (Prionace glauca) near sea surface. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) near sea surface and diver with photographic equipment. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface and diver with photographic equipment. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) and diver with underwater photographic equipment. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) and diver with underwater photographic equipment. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) near sea surface with sun shining from above. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface with sun shining from above. Santa Maria, Azores, September.
Blue Shark (Prionace glauca) in profile near sea surface. Santa Maria, Azores, September.  -  Nuno Sa
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Nuno Sa / Blue Shark (Prionace glauca) in profile near sea surface. Santa Maria, Azores, September.