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Jellyfish Rule! --- Golden Jellyfishes (Mastigias sp.) [LiveScience 2011-04-28] latin dict size=42   common dict size=582
Image Info Original File Name: 090729-mastigias-02 - Golden Jellyfish.jpg Resolution: 575x432 File Size: 77611 Bytes Upload Time: 2011:04:29 11:30:07
Author Name (E-mail): News (from@livescience.com)
Subject Jellyfish Rule! --- Golden Jellyfishes (Mastigias sp.) [LiveScience 2011-04-28]
Jellyfish Rule! --- Golden Jellyfishes (Mastigias sp.) [LiveScience 2011-04-28]; Image ONLY
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Jellyfish Rule! --- Golden Jellyfishes (Mastigias sp.) [LiveScience 2011-04-28]

Ocean Mixers
Credit: K.Katija/J.Dabiri.

Mastigias jellyfish flood Jellyfish Lake, a marine lake in Palau, an island nation in the Pacific Ocean. Here, researchers found that pulsating jellyfish stir up the oceans with as much vigor as tides and winds, making them major players in ocean mixing.

Source: LiveScience - http://www.livescience.com

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Golden jellyfish

The golden jellyfish are most closely related to the spotted jellyfish (Mastigias papua) that inhabit the nearby lagoons. They are similar to the spotted jellyfish in that they derive part of their nutrition from symbiotic algae (Zooxanthella) that live in their tissues and part of their nutrition from captured zooplankton. However, the golden jellyfish are morphologically, physiologically and behaviorally distinct from the spotted jellyfish. They are easily distinguished from the spotted jellyfish by the almost complete loss of spots on the exumbrella and the almost complete loss of their clubs, an appendage attached to the oral arms.

Marine biologist, Michael Dawson proposed that the golden jellyfish that inhabit Jellyfish Lake be classified as a subspecies (Mastigias cf. papua etpisoni) of the spotted jellyfish living in the nearby lagoons. The species identification is uncertain (denoted by cf. in the name) because the Mastigias papua local to Palauan lagoons may be only one of several cryptic species that make up the M. papua group and in the future the M. papua local to Palau may be identified as a separate species from other M. papua. He also proposed that the jellyfish living in four other Palauan marine lakes were distinctive enough to deserve recognition as unique subspecies.
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