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A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column.  The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their  countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size, Carcharodon carcharias, Guadalupe Island (Isla Guadalupe) Add To Light Table A great white shark is countershaded, with a dark gray dorsal color and light gray to white underside, making it more difficult for the shark's prey to see it as approaches from above or below in the water column. The particular undulations of the countershading line along its side, where gray meets white, is unique to each shark and helps researchers to identify individual sharks in capture-recapture studies. Guadalupe Island is host to a relatively large population of great white sharks who, through a history of video and photographs showing their countershading lines, are the subject of an ongoing study of shark behaviour, migration and population size.
Image ID: 19484  
Species: Great white shark, Carcharodon carcharias
Location: Guadalupe Island (Isla Guadalupe), Baja California, Mexico
 


Natural History Photography Blog posts (11) related to Shark Research



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Categories Appearing Among These Images:
Animal  >  Cetacean  >  Whale  >  Humpback Whale  >  Humpback Whale Juvenile / Calf
Animal  >  Cetacean  >  Whale  >  Juvenile / Calf
Animal  >  Cetacean  >  Whale  >  Whale Behavior  >  Stranding / Abandonment
Animal  >  Endangered / Threatened Species  >  Marine  >  Great White Shark
Animal  >  Endangered / Threatened Species  >  Marine  >  Humpback Whale
Animal  >  Shark  >  Great White Shark
Animal  >  Shark  >  Shark Research / Conservation  >  ID Tagging
Environmental Issues / Problems  >  Stranding / Abandonment  >  Abandoned Whale Calf
Gallery  >  Great White Shark
Gallery  >  Humpback Whales
Gallery  >  New Work September 2013
Gallery  >  Sharks
Location  >  Oceans  >  Pacific  >  California (USA) / Baja California (Mexico)  >  Guadalupe Island (Isla Guadalupe)
Location  >  Oceans  >  Pacific  >  Hawaiian Islands
Location  >  Protected Threatened and Significant Places  >  International  >  Isla Guadalupe Special Biosphere Reserve (Mexico)
Location  >  Protected Threatened and Significant Places  >  National Marine Sanctuaries  >  Hawaiian Islands Humpback Whale National Marine Sanctuary
Location  >  USA  >  Hawaii
Location  >  World  >  Mexico  >  Guadalupe Island (Isla Guadalupe)
Subject  >  Technique  >  Underwater

Species Appearing Among These Images:
Carcharodon carcharias
Megaptera novaeangliae

Natural History Photography Blog posts (11) related to Shark Research
New Work - September 2013
Rose Atoll, A World Treasure in Peril
Heat Run: Humpback Whale Behavior Photos
Best Photos of 2008
Guadalupe 2008: Satellite Tags on a Great White Shark
Shredder
Guadalupe White Shark Trip 2007
GuadalupeFund.Org
Wolf Island, Galapagos
Guadalupe Island White Shark ID Project
Sex and the Single Shark

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Updated: August 6, 2020