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Crystal, Jelly (Aequorea victoria)

In Darker Silhouette
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The Crystal Jelly can seem almost spooky when seen in silhouette in dark water.

Crystal Jelly (Aequorea victoria) external link   •  Monterey Bay Aquarium internal link   •  886 Cannery Row, Monterey, California   •  (Photo posted Tuesday 15 November 2011)   •  (Photo taken 16:05:00 Wednesday 20 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCY_2266
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Can Fluoresce
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This jellyfish is capable of producing flashes of blue light by a quick release of calcium which interacts with the photoprotein aequorin.

Crystal Jelly (Aequorea victoria) external link   •  Monterey Bay Aquarium internal link   •  886 Cannery Row, Monterey, California   •  (Photo posted Tuesday 15 November 2011)   •  (Photo taken 16:04:45 Wednesday 20 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCY_2264
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In Silhouette
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Because it is transparent, it is commonly seen in silhouette

Crystal Jelly (Aequorea victoria) external link   •  Monterey Bay Aquarium internal link   •  886 Cannery Row, Monterey, California   •  (Photo posted Tuesday 15 November 2011)   •  (Photo taken 16:04:56 Wednesday 20 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCY_2265
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Almost Transparent
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Almost entirely transparent and colorless, and sometimes difficult to resolve.

Crystal Jelly (Aequorea victoria) external link   •  Monterey Bay Aquarium internal link   •  886 Cannery Row, Monterey, California   •  (Photo posted Tuesday 15 November 2011)   •  (Photo taken 16:04:26 Wednesday 20 October 2010)   •  © 2011 Bryan Costales Creative Commons Attribution-NonCommercial License #BCY_2261
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