When you want to see the stars, find someplace dark
Exploring the wet
The moorish idol (Zanclus cornutus) is one of the most memorable fish on a Hawaiian reef. They are commonly seen grazing along the open reef in shallow water. I often find these fish in caves as well, which seems quite odd as few daytime fish venture into the dark. The sponge and algae covered walls apparently provide good grazing.
Two dives, almost two hours underwater, much of that time spent combing the reef face and cave walls for small invertebrates to photograph. I was well into my second dive of the day, a nice cave called Henry’s, where I had now spent over forty minutes carefully searching the interior and entrance areas of the lava tube. My real target is nudibranchs, but so far the day’s diving had revealed only two, both species I had found and photographed many times before.
A splash of color at the base of a large antler coral got my attention, it was shaped just right, but I was not in a position to see it clearly. Getting closer it looked better, about the right size with white raised features. It was only after circling to the other side of the coral and getting in close that I saw that this was probably not a nudi. It took a moment to realize that this was probably a dark purple sponge with bright white osculum. Even in the photo you have to look close to realize what it is.
Except in a few obvious cases, I make no real effort to properly identify sponges. This is a task that takes an expert, a collected specimen and a proper lab to do. I did check briefly through the book to see if there was a clear match, but as I expected, this sponge will remain identified simply as… a sponge.
Let me be quite clear… My idea of Super Sunday does not involve any sort of professional sporting event. This includes no television or funny commercials, no party, piles of chicken wings or large screen displays, and no halftime show.
It was a pretty good day to go diving. The surf was a bit high, no problem as we would be diving from the boat. It was Dennis, Sky, Pete and myself, the usual crew. Dennis chose to head south of Kona, a good choice as we found nice conditions… Good vis and little surge. Going south also allowed us to do a little whale watching along the way. We encountered spinner dolphins just outside the marina, and again in front of Kailua Bay on the way back. Two humpbacks caught Dennis by surprise, surfacing right in front of the boat as we cruised south, giving us a great view as we waited for them to move away.
