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Nano Gobies

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we found here were very different from the burgeoning<br />

reefs of the Indo-Pacific. One immediately noticeable difference<br />

was the abundance of gorgonians (above all Plexauridae<br />

and Gorgoniidae), masses of which occupied the<br />

limestone mountains built by stony corals. They formed<br />

elastic, bushy, and fan-shaped structures that swung to<br />

and fro in the swell. Like the numerous branching stony<br />

corals found elsewhere (in particular those of the genus<br />

Acropora, which is poorly represented in the Atlantic),<br />

these gorgonians are important to the fish fauna because<br />

The long anal-fin spine is a striking feature of the Longjaw<br />

Squirrelfish (Holocentrus marianus).<br />

they provide cover. The second peculiarity of the Caribbean<br />

reefs is their abundant sponge fauna, which made<br />

the underwater landscape appear more colorful. In the<br />

areas flooded with sunlight there was also an abundance<br />

of various algae, cloaking the limestone so it looked like<br />

a tufted carpet.<br />

The fringing reefs in exposed positions often dropped<br />

off precipitously into apparently bottomless depths, their<br />

foundations somewhere in the eternal dark blue. The<br />

nearly vertical walls were traversed by impressive ravines.<br />

In one spot we dived through a vertical, chimney-like<br />

cave whose exit was way below the usual 98-foot (30-m)<br />

maximum on the depth indicator of the computer. But<br />

the sheer walls of most of these reefs ended at around<br />

82 feet (25 m), where they rose from broad expanses of<br />

sand, from which low-lying banks of coral and smaller<br />

patches also sprouted here and there. Everything appeared<br />

undisturbed and intact, as if the worldwide coral<br />

die-off was just a bad dream.<br />

Nevertheless, even in this fabulous underwater paradise<br />

we were suddenly brought back to reality by the sight<br />

of the attractively colored Red Lionfish, with its feathery<br />

fin-rays with poisoned tips. For some years this species<br />

(Pterois volitans), actually a denizen of the Indo-Pacific,<br />

has been spreading rapidly in the Caribbean and has<br />

now reached the Gardens of the Queen. We found stately<br />

specimens of this unwelcome immigrant everywhere.<br />

They find abundant prey here, but have no natural enemies<br />

themselves.<br />

The indigenous fish fauna here is amazing, with<br />

some 500 species resident in the Caribbean. The Queen<br />

Angelfish (Holacanthus ciliaris) is undoubtedly one of<br />

the most beautiful. The numerous wrasses, such as the<br />

CORAL<br />

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