Bula Plan>B,
If you log onto Google Earth, the picture with the bird wrasse was taken at the following coordinates:
16 degrees 43' 36.80" S 179 degrees 46' 02.16 W
Thanks Mr. Evo and scubajim. I can appreciate your perspective, scubajim, as we are being bombarded with doomsday scenarios (global warming, acidification, etc.). The coral reefs in Fiji are, in general, healthy. And there are thousands, upon thousands of miles of still unexplored pristine reef (the Great Reef on the north shore of Vanua Levu is a prime example) with millions upon millions of healthy coral colonies everywhere. I am not saying that all the reefs in Fiji look like this, because they don't (there are areas of storm damage, or siltation damage) and Fiji did experience a coral bleaching event a few years past. However, the reefs recover(ed).
Every time I jump into Fiji's waters, I'm astounded by the coral reefs. Every dive, I find acres upon acres of the very corals we aquarists are paying BIG MONEY to acquire: vivid blue and purple torts/milleporas, etc. . . . I actually become non-chalant about it: "Oh yea, there's another one." The only thing rare in Fiji are clams (the locals love to eat them) and big fish (excessive fishing). If you're looking for clams and big fish, go elsewhere. Otherwise, prepare to jump into a world where chromis and anthias are so thick in the water column, it's like pea soup.
If predator-dominated Kingman represents the gold standard for coral reefs, how does the removal of large carnivores through fishing affect coral communities elsewhere, such as in Kiritimati? As the report from the Line Islands shows, overfishing can unleash a population boom of smaller fish. The reef might appear luxuriant for a time, but in a matter of decades its ecosystem can unravel from a wonderland of marine diversity into a sediment-choked ecological desert.
"Eliminating the top predators speeds the turnover rate of the entire reef community," Sala says. Through mechanisms not yet fully understood, this acceleration ultimately produces an explosion of microbes, some of which may cause coral death. Fishing out the large herbivores contributes to reef degradation. In the absence of grazers, large algae flourish, and their photosynthetic activity increases the availability of dissolved organic carbon in the system, boosting the growth of bacteria.
"It's bad for corals to be bathed in microbes," says Elizabeth Dinsdale, an expedition microbiologist. Ten times as many microbes populate the water above Kiritimati as live above Kingman. It's the difference, Dinsdale says, between swimming in a sewer and a chlorinated pool.