Observations of a rapid decline in invasive macroalgal cover linked to green turtle grazing in a Hawaiian marine reserve*

The persistent, non-native invasive alga Gracilaria salicornia has dominated the protected waters surrounding Moku o Loʻe, Kāneʻohe Bay since its introduction in 1978; however, a sudden decline in abundance (75%) occurred within a 30-day survey period. The consisent environmental conditions during the survey period, dominance of G. salicornia despite the presence of abundant herbivorous fish populations, and multiple observations of physical grazing by the green turtle, Chelonia mydas, on G. salicornia support our conclusion that C.

Several photos and videos of Ramsey swimming with, and even occasionally touching, the giant shark have since gone viral on social media, leaving many awestruck over the breathtaking images.

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According to the Secretariat of the Pacific Regional Environment Programme’s (SPREP) Shark’s and Rays Conservation Officer, Juney Ward, the media can sometimes paint a very negative picture of these creatures.