What up, fishes!?!

One of the things that I wanted to do on this dive trip was to check out the fluorescence on the reefs. You may have seen some of my land-based results with jumping spiders, but I still was blown away by the results I got.

The equipment I bought was made by NightSea and includes an excitation filter that goes on your light source (flash/strobe) and a yellow lens filter that acts to eliminate the color of the excited light. Basically, the excitation filters produce a bluish light that is the correct wavelength to induce the most common fluorescence responses - the yellow filter then removes that bluish light and returns things back to normal. We also had a special flashlight that had the blue excitation light, plus some yellow filters that went over the front of our masks so we could see the fluorescence effect that way too.

The results were stunning...

Not everything fluoresced on the reefs, so as we shined our lights along the corals, some would glow incredibly bright while others were just black and did nothing. I searched around for small critters like crabs and shrimp, but considering there were always hungry sharks or large horse-eyed jacks feeding during out night dives, it wasn't always the easiest thing to be looking for little stuff while not being able to see anything that wasn't fluorescing.

Maybe next time (and hopefully next time is soon!).

- Bill