Jeff Yonover

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167 images found
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  • A coral head with "blooming" soft coral trees, Dendronepthia sp., shimmers with wolor as schooling anthias, Pseudanthias sp., swim about.  This image portrays the quintessential healthy coral reef landscape, in its full, vibrant, splendor.  Present are healthy hard and soft corals, swarms of fish, and countless unseen invertebrates.  Shot in the Eastern Fields region of Papua New Guinea.
    0211pg057.jpg
  • Schooling Jacks and Creolefish on a reef slope<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr137.JPG
  • Hundreds of Creolefish feed on plankton in the current above a reef slope.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr073.JPG
  • Hundreds of Creolefish feed on plankton in the current above a reef slope.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr051.JPG
  • Swarming Creolefish feed in the current<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr158.JPG
  • Swarming Creolefish feed in the current<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr159.JPG
  • Creolefish and Snappers schooling by the hundreds <br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr006.JPG
  • Divers cruise through a school of feeding Creolefish.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr004.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr177.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr176.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr176 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr166.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr167.JPG
  • Two large Yellowfin Tuna send a school of Bigeye Trevally scattering<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr164.JPG
  • Two large Yellowfin Tuna send a school of Bigeye Trevally scattering<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr164 bw.jpg
  • An Eagle Ray cruising a reef wall, munching on a snack (most likely a gastropod it dug out of the rubble just a few seconds before the frame was captured)<br />
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<br />
Shot at Cocos Island, Costa Rica
    Cocos Eagle Ray1409cr163.JPG
  • Here comes Pinocchio...<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr157.JPG
  • Having given up on eating the Sea Turtle in the background, a Tiger Shark directs its attention elsewhere.  <br />
<br />
(Note the arched back, and pectoral fins placed downward.  This is typical aggressive posturing.  We exited the water shortly after these frames were captured.)<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr156 bw.jpg
  • Having given up on eating the Sea Turtle in the background, a Tiger Shark directs its attention elsewhere.  <br />
<br />
(Note the arched back, and pectoral fins placed downward.  This is typical aggressive posturing.  We exited the water shortly after these frames were captured.)<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr155.JPG
  • Bigeye Trevally, schooling tightly<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr141.JPG
  • Bigeye Trevally, schooling tightly<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr140.JPG
  • Smaller fish scatter to avoid the quick rush of a large Yellowfin Tuna<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr135.JPG
  • Rebreather divers and Marble Rays<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr134.JPG
  • Schools of Snappers and Goatfish mix in swim through created by huge boulders<br />
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Shot at Cocos Island, Costa Rica
    1409cr132.JPG
  • King Angelfish<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr131.JPG
  • Whitetip Reef Shark portrait---note the skin detail on the head<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr123.JPG
  • Whitetip Reef Shark portrait---note the skin detail on the head<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr121.JPG
  • A large school of Scalloped Hammerhead Sharks passes high overhead<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr118.JPG
  • Rebreather divers filming schooling Hammerhead Sharks<br />
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<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr114.JPG
  • A large school of Scalloped Hammerhead Sharks passes high overhead<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr116 bw.jpg
  • Rebreather divers filming schooling Hammerhead Sharks<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr114 bw.jpg
  • Rebreather divers filming schooling Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr112 bw.jpg
  • A large school of Scalloped Hammerhead Sharks passes high overhead<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr110 bw.jpg
  • A large school of Mullet Snapper<br />
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Shot at Cocos Island, Costa Rica
    1409cr106.JPG
  • A Green Sea Turtle glides by, with Hammerheads passing overhead<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr104 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr103 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr102.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr102 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr100.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr099.JPG
  • Lisa, Amy, and Dave at Alcyone<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr095.JPG
  • Divers decent a mooring line, as a Scalloped Hammerhead Shark gets cleaned by a Barberfish<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr093.JPG
  • While most reef fish are asleep, Whitetip Reef Sharks and Black Jacks search frantically for a meal.<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr090.JPG
  • Selfie with Mexican Hogfish and divers<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr083.JPG
  • Schooling Scalloped Hammerhead Sharks cruising above<br />
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<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr077.JPG
  • A Mexican Hogfish hams it up for the camera<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr074.JPG
  • A diver photographs two large Yellowfin Tuna<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr071.JPG
  • Marble Ray and Diver<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr069.JPG
  • Schooling Bigeye Jacks rise from the depths<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr068.JPG
  • Rebreather divers interact with Schooling Bigeye Jacks<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr067.JPG
  • Rebreather divers interact with Schooling Bigeye Jacks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr067 bw.jpg
  • A Diver observes a huge school of Jacks<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr066.JPG
  • A Diver observes a huge school of Jacks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr066 bw.jpg
  • Reef Fish, mostly Snappers, congregate by the hundreds<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr061.JPG
  • Schooling Cocinero Jacks<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr062.JPG
  • A Whitetip Reef Shark, having snatched up a sleeping parrotfish, tries to leave the frenzied pack to enjoy its meal.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr055.JPG
  • An aggressive Tiger Shark makes a very close pass.<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr049 bw.jpg
  • A school of large Mullet Snapper cruise near the surface<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr047.JPG
  • Scalloped Hammerhead Sharks schooling near the top of a submerged seamount, in order to be "cleaned" by Angelfishes and Barberfishes.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr043.JPG
  • Scalloped Hammerhead Sharks schooling near the top of a submerged seamount, in order to be "cleaned" by Angelfishes and Barberfishes.  Two divers using rebreathers observe and try to capture the scene.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr045 bw.jpg
  • Scalloped Hammerhead Sharks schooling near the top of a submerged seamount, in order to be "cleaned" by Angelfishes and Barberfishes.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr043 bw.jpg
  • Scalloped Hammerhead Sharks schooling near the top of a submerged seamount, in order to be "cleaned" by Angelfishes and Barberfishes.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr041.JPG
  • A very pregnant White Tip Reef Shark rests on a rocky reef slope.<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr039.JPG
  • A Diver observes a huge school of Snappers<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr036.JPG
  • Jacks, Snappers, and Squirrelfish congregate in a natural "swim through".<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr035.JPG
  • Black Jacks and hundreds of Snappers cruise in and out under a natural "swim through", while a diver passes by.<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr034.JPG
  • Black Jacks and hundreds of Snappers cruise in and out under a natural "swim through", while a diver passes by.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr033.JPG
  • Black Jacks and hundreds of Snappers cruise in and out under a natural "swim through", while a diver passes by.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr032.JPG
  • Large Black Jacks and hundreds of Snappers cruise in and out under a natural "swim through".<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr028.JPG
  • Marble Rays, all male, congregate in a reef cavern<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr027bw.jpg
  • Marble Rays, all male, congregate in a reef cavern<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr026bw.jpg
  • Marble Rays, all male, congregate in a reef cavern<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr025.JPG
  • Marble Rays, all male, congregate in a reef cavern<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr025bw.jpg
  • Schooling Jacks under a reef pinnacle<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr023.JPG
  • Reef fish scurry to avoid an approaching Scalloped Hammerhead Shark<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr024.JPG
  • Schooling Squirrelfish<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr019.JPG
  • Shot at Cocos Island, Costa Rica
    1409cr018.JPG
  • Schooling Bigeye Jacks come up from the deep<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr017.JPG
  • Schooling Bigeye Jacks come up from the deep<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr017bw.jpg
  • Shot at Cocos Island, Costa Rica
    1409cr016.JPG
  • Divers, Schooling Jacks, and Boat<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr013.JPG
  • Schooling Bigeye Jacks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr012.JPG
  • A diver observes two species of schooling Jacks<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr010.JPG
  • Divers and several species of schooling reef fish, including Mexican Goatfish<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr007.JPG
  • A Tumpetfish and Squirrelfishes amongst hundreds of Snappers.<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr003.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr182.JPG
  • A Scalloped Hammerhead Shark looks for cleaner fish to remove dead skin and parasites.<br />
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<br />
Shot at Cocos Island, Costa Rica
    1409cr181.JPG
  • A Scalloped Hammerhead Shark looks for cleaner fish to remove dead skin and parasites.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr181 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr177 bw.jpg
  • Schooling Scalloped Hammerhead Sharks, grainy<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr175.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr174.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr173.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr173 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr172 bw.jpg
  • A school of Mullet Snapper swims by<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr169.JPG
  • Having given up on eating the Sea Turtle in the background, a Tiger Shark directs its attention elsewhere.  <br />
<br />
(Note the arched back, and pectoral fins placed downward.  This is typical aggressive posturing.  We exited the water shortly after these frames were captured.)<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr156.JPG
  • Having given up on eating the Sea Turtle in the background, a Tiger Shark directs its attention elsewhere.  <br />
<br />
(Note the arched back, and pectoral fins placed downward.  This is typical aggressive posturing.  We exited the water shortly after these frames were captured.)<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr155 bw.jpg
  • Having given up on eating the Sea Turtle in the background, a Tiger Shark directs its attention elsewhere.  <br />
<br />
(Note the arched back, and pectoral fins placed downward.  This is typical aggressive posturing.  We exited the water shortly after these frames were captured.)<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr154 bw.jpg
  • Bigeye Trevally, schooling tightly<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr147.JPG
  • Bigeye Trevally, schooling tightly<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr147 bw.jpg
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