Jeff Yonover

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3418 images found
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  • A VERY busy reef top, with Surgeonfish, Hard Corals, Crinoids, and Anthias<br />
<br />
Shot in Indonesia
    1412id131.JPG
  • Schooling Unicornfishes<br />
<br />
<br />
Shot in Indonesia
    1412id105.JPG
  • Two distinct species of Ghostpipefish hunt together<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id005.JPG
  • A group of Galapagos Sharks passes by<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr143.JPG
  • A large school of Scalloped Hammerhead Sharks passes high overhead<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr109.JPG
  • Schooling Scalloped Hammerhead Sharks cruising above<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Hammerhead1409cr078.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.JPG
  • Schooling Bigeye Jacks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr014.JPG
  • Surgeonfishes swim close to a reef slope<br />
<br />
<br />
Shot in Indonesia
    1412id222.JPG
  • Surgeonfish congregate around a large Gorgonian <br />
<br />
Shot in Indonesia
    1412id180.JPG
  • A mass of Egg Cowries on a Soft Coral is visited briefly by a planktonic shrimp.<br />
<br />
<br />
Shot in Indonesia
    1412id170.JPG
  • Emperor Shrimp perched on the surface of a Pleuobranch<br />
<br />
<br />
Shot in Indonesia
    1412id160.JPG
  • Surgeonfish seek shelter down current of a Black Coral tree<br />
<br />
Shot in Indonesia
    1412id126.JPG
  • Spanish Dancer Nudibranch, amongst the largest in the sea slug family<br />
<br />
Shot in Indonesia
    1412id103.JPG
  • A filefish lies on the seafloor, resting<br />
<br />
Shot in Indonesia
    1412id077.JPG
  • Coconut Octopus<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id066.JPG
  • A Blue Ringed Octopus carries off a potential meal 4/7<br />
<br />
This is a series of 7 images, taken over a period of several minutes, of one individual.  It has just captured something unidentifiable, presumably as a meal.  The color and blue ring variations the octopus displays are remarkable.<br />
<br />
Shot in Indonesia
    1412id057.JPG
  • A Filefish tries to hide in the arms of a Crinoid<br />
<br />
<br />
Shot in Indonesia
    1412id035.JPG
  • Longhorn Cowfish portrait<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id010.JPG
  • Damsels and Shrimp take cover from the current behind a Soft Coral tree.<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id007.JPG
  • A Damselfish guards the eggs it has laid in an old shell<br />
<br />
Shot in Indonesia
    1412id001.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr177 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr176 bw.jpg
  • Two large Yellowfin Tuna send a school of Bigeye Trevally scattering<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr164.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 />
<br />
<br />
Shot at Cocos Island, Costa Rica
    Cocos Eagle Ray1409cr163.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
    1409cr147.JPG
  • Schools of Snappers and Goatfish mix in swim through created by huge boulders<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr132.JPG
  • A large school of Scalloped Hammerhead Sharks passes high overhead<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr110 bw.jpg
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr103 bw.jpg
  • Divers decent a mooring line, as a Scalloped Hammerhead Shark gets cleaned by a Barberfish<br />
<br />
<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 />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr090.JPG
  • A Mexican Hogfish hams it up for the camera<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr074.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 />
<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
  • Hundreds of Creolefish feed on plankton in the current above a reef slope.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr051.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
  • A Diver observes a huge school of Snappers<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr036.JPG
  • Black Jacks and hundreds of Snappers cruise in and out under a natural "swim through", while a diver looks on.<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr031.JPG
  • Marble Rays, all male, congregate in a reef cavern<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr026bw.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
  • A Blue Ribbon Eel peers from its burrow in the seafloor<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id252.JPG
  • A Blue Ribbon Eel peers from its burrow in the seafloor<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id251.JPG
  • A tiny Blue Ringed Octopus clings to an Algae colony<br />
<br />
Shot in Indonesia
    1412id245.JPG
  • A Squat Lobster perches atop a closed Crinoid (Feather Star), their exclusive habitat.<br />
<br />
Shot in Indonesia
    1412id244.JPG
  • Schooling Surgeonfish, coming at ya<br />
<br />
Shot in Indonesia
    1412id218.JPG
  • Anthias and Surgeonfish face into the current over a colorful reef slope<br />
<br />
Shot in Indonesia
    1412id217.JPG
  • A pair of Spiny Devilfish raise their spike-like dorsal spines, a sure sign of aggression.<br />
<br />
Shot in Indonesia
    1412id208.JPG
  • Anemone Hermit Crab.  This animal attaches anemones to its adopted home (shell), to ward off potential predators<br />
<br />
Shot in Indonesia
    1412id206.JPG
  • A large Bumped Parrotfish comes in for a close inspection<br />
<br />
Shot in Indonesia
    1412id201.JPG
  • A Long-Armed Octopus does a good job blending in with the sandy seafloor<br />
<br />
Shot in Indonesia
    1412id203.JPG
  • No Room at the Inn<br />
<br />
A coral head is packed with colorful crinoids, soft corals and tunicates.<br />
<br />
Shot in Indonesia
    1412id195.JPG
  • A densely packed Coral Reef, teeming with life<br />
<br />
Shot in Indonesia
    1412id190.JPG
  • Surgeonfish congregate around a large Gorgonian, with a sole Barramundi hiding in the middle<br />
<br />
Shot in Indonesia
    1412id181.JPG
  • A Decorator Crab (right eye at center) has attached a piece of Soft Coral to its head for extra camouflage.<br />
<br />
Shot in Indonesia
    1412id176.JPG
  • A Parasitic Copepod has attached to a Lionfish's eye.<br />
<br />
Shot in Indonesia
    1412id174.JPG
  • A Painted Frogfish extends its lure to attract prey<br />
<br />
Shot in Indonesia
    1412id166.JPG
  • Angelfish and Soft Corals abound in color<br />
<br />
Shot in Indonesia
    1412id152.JPG
  • A Frogfish is unimpressed with the camera's presence, "yawning" widely.<br />
<br />
Shot in Indonesia
    1412id159.JPG
  • Soft Corals and Crinoids dominate the reeftop landscape, with Wrasses cruising above, in search of a meal.<br />
<br />
Shot in Indonesia
    1412id148.JPG
  • Ambush in the making:  A Scorpionfish (center) lays in wait for an unwary Sweeper to get too close.<br />
<br />
Shot in Indonesia
    1412id145.JPG
  • A pair of Surgeonfish pause at a cleaning station to have dead skin and parasites removed by wrasses<br />
<br />
Shot in Indonesia
    1412id127.JPG
  • Moray Eel approaching the camera lens<br />
<br />
Shot in Indonesia
    1412id117.JPG
  • A Wrasse photobombs a Filefish portrait<br />
<br />
Shot in Indonesia
    1412id115.JPG
  • A school of Butterflyfish cruises a reef slope<br />
<br />
Shot in Indonesia
    1412id111.JPG
  • Large Spanish Dancer Nudibranchs mating<br />
<br />
<br />
Shot in Indonesia
    1412id106.JPG
  • A commensal Shrimp, abdomen full of eggs, sits on the mouth of a Corralimorph, surrounded by tentacles<br />
<br />
Shot in Indonesia
    1412id099.JPG
  • Colorful undescribed Nudibranch feeding on algae<br />
<br />
Shot in Indonesia
    1412id097.JPG
  • A colorful Goatfish poses for a shot, with barbels fully extended.  (vertical crop)<br />
<br />
Shot in Indonesia
    1412id095c.jpg
  • A Sea Apple, colorful member of the Sea Cucumber family, extends its feeding arms.<br />
<br />
Shot in Indonesia
    1412id086.JPG
  • A Bornella Nudibranch free swims in the water column.<br />
<br />
Shot in Indonesia
    1412id083.JPG
  • Striped Frogfish, "hairy variation"<br />
<br />
Shot in Indonesia
    1412id078.JPG
  • A Reef Squid hovers in the dark water column at night<br />
<br />
Shot in Indonesia
    1412id081.JPG
  • A Blue Ringed Octopus rests on a Sea Cucumber 6/7<br />
<br />
This is a series of 7 images, taken over a period of several minutes, of one individual.  It had just captured something unidentifiable, presumably as a meal.  The color and blue ring variations the octopus displays are remarkable.<br />
<br />
Shot in Indonesia
    1412id060.JPG
  • A Blue Ringed Octopus carries off a potential meal 2/7<br />
<br />
This is a series of 7 images, taken over a period of several minutes, of one individual.  It has just captured something unidentifiable, presumably as a meal.  The color and blue ring variations the octopus displays are remarkable.<br />
<br />
Shot in Indonesia
    1412id054.JPG
  • A Blue Ringed Octopus carries a potential meal 3/7<br />
<br />
This is a series of 7 images, taken over a period of several minutes, of one individual.  It has just captured something unidentifiable, presumably as a meal.  The color and blue ring variations the octopus displays are remarkable.<br />
<br />
Shot in Indonesia
    1412id056.JPG
  • A Blue Ringed Octopus carries off a potential meal, 1/7<br />
<br />
This is a series of 7 images, taken over a period of several minutes, of one individual.  It has just captured something unidentifiable, presumably as a meal.  The color and blue ring variations the octopus displays are remarkable.<br />
<br />
Shot in Indonesia
    1412id053.JPG
  • Longhorn Cowfish and Sea Pen<br />
<br />
Shot in Indonesia
    1412id039.JPG
  • Winged Pipefish nestled on a bed of red algae<br />
<br />
Shot in Indonesia
    1412id040.JPG
  • A Filefish has a parasitic algae growth on its eye<br />
<br />
Shot in Indonesia
    1412id037.JPG
  • An Octopus piles its arms toward the camera<br />
<br />
Shot in Indonesia
    1412id033.JPG
  • Juvenile Lacey Scorpionfish, with lunch sticking out of its mouth<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id029.JPG
  • Juvenile Lacey Scorpionfish, with lunch sticking out of its mouth<br />
<br />
<br />
<br />
Shot in Indonesia
    1412id031.JPG
  • A tiny Winged Pipefish coils around algae to stay in place<br />
<br />
Shot in Indonesia
    1412id008.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.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr176.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
    1409cr173.JPG
  • A school of Mullet Snapper swims by<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr169.JPG
  • Schooling Scalloped Hammerhead Sharks<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr167.JPG
  • Swarming Creolefish feed in the current<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr158.JPG
  • Here comes Pinocchio...<br />
<br />
<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
    1409cr154 bw.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
  • Schools of Jacks and Snappers<br />
<br />
<br />
Shot at Cocos Island, Costa Rica
    1409cr138.JPG
Next