What are the populations (biology) in the Great Barrier Reef?

Not sure what you're asking here. The GBR features a typical coral reef ecology. There's nothing special or unique about it except for its size. read more

The Great Barrier Reef is the world's largest coral reef. The reef is located off the coast of Queensland in north-east Australia. It stretches over 2000 kilometres in length and can be seen from space. An ancient barrier reef similar to the Great Barrier Reef can be found in The Kimberlies. read more

Great Barrier Reef collections and entry into no-entry zones were conducted under GBRMPA permit. Robbins et al.: "Ongoing Collapse of Coral-Reef Shark Populations." Publishing in Current Biology 16, 2314--2319, December 5, 2006 DOI 10.1016/j.cub.2006.09.044. read more

Barrier reef not dying, but changing, says leading scientist Microbial populations could be the key to survival for coral species in a warming ocean. Gabrielle Ahern reports. read more