Diving the Kona Coast: Green Linckia

Saturday, April 17, 2010

Dive Report for Saturday 04/17/10

Aloha, everyone! I,ve been sidelined by a sinus infection for the past two weekends so I haven't had any dives to blog about. But, I'm all better now and had a wonderful pair of dives today at Honaunau.

For my first dive I surface swam to the south end of the cove and descended among the large stone formations there. One of the first sights I saw was this six-rayed Green Linckia sea star. While not common, sea stars with extra rays are not rare either.

Just a photo of a common Yellow Tang, but I'm happy with this because at least the bright yellow didn't reflect my flash so much as to wipe out the details on the fish.

I found this little Spotted Boxfish male out in the open but when I approached to take his photo he retreated back into the coral for safety. This is the only half-decent photo I got of him.

This pair of Raccoon Butterflyfish followed me for awhile as I made my way around the rock formations.

I haven't seen one of these Lantern Tobies in quite awhile. Some species seem to disappear for a time, only to come back in numbers later on. I used to see these in pairs but this one was solo.

This is the first Shortnose Wrasse that I've seen in some time. This one can be identified as a male by the bright red area on the front of the dorsal fin. Like all wrasse, it swims about in a rapid and somewhat erratic manner making it difficult (for me) to photograph.

This is Wire Coral (sometimes called Whip Coral) that can be found all over the south end of the cove. It grows out of the sides of the rock formations, usually where it is shaded by an overhang. There are certain shrimp and gobies that are specially adapted to live on this unusual coral.

The vermillion color of this Arc-Eye Hawkfish contrasted nicely with the pale green coral he was resting on.He certainly wasn't hiding!

I got one chance to snap this photo of a Potter's Angelfish before it disappeared into the coral.

I love the photo opportunities afforded by the cleaning stations. Here a Goldring Surgeonfish unfurls its fins for a thorough going-over by a Hawaiian Cleaner Wrasse.

This Whitemouth Moray made a willing photo subject towards the end of my dive.

Diving conditions were kind of a mixed bag today. There was a bit of surge in the early morning but visibility was better than it had been for months. The temp remained a chilly 74 degrees. On my surface interval, the clouds rolled in and the wind picked up to at least 12 knots as whitecaps were forming on the open water outside the cove.

On my second dive I decided to check in on some old friends. This male Longfin Anthias is still doing well, as is his little harem.

Likewise, the small school of Pyramid Butterflyfish has managed just fine in my absence.

It's always cool to see a Pacific Trumpetfish hanging vertically like this in the water column. They float like this waiting for a little fish to swim out of the coral and then the trumpetfish sucks it in!

To finish off this post, here's a photo of Yellowfin Goatfish who will probably gather in this cove forever. They are a constant presence around the ALOHA sandpatch every single day and are reliable enough to use as a navigational aid.

Although there were no spectacular sightings, these were two very pretty dives and I was very grateful to be back in the water again!

Sunday, February 28, 2010

Post-Tsunami Dive Report for 02/28/10

The sun came up over a calm and sparkling Honaunau Bay this morning and I was there to greet it. Everybody and everything is still intact. The forecasters and government agencies all across the island chain did a great job responding to the tsunami threat. It was hard to believe that Honolulu/Waikiki could be cleared out that effectively!

Here on the Big Island today is just a day like any other day. Diving conditions were excellent although I noticed a couple things that seemed a little unusual. First, there was a lot of cold, fresh water percolating up through the water column. At one point my computer was indicating 73 deg. F. That's a little chilly! Also, I wouldn't exactly call it a current but there was a slight southward pull inside the bay today. Nothing major but perceptible, nevertheless.

I started my first dive as the sun was rising. A lot of fish were just coming out onto the reef after a night's rest. I saw this Day Octopus gliding along the reef top with a large Peacock Grouper escorting it. Like the goatfish in last week's post, the grouper follows the octopus, hoping to gobble up any little creatures the octopus may scare off the reef as it travels. This is the closest I've ever gotten to a grouper exhibiting this behavior. Usually they separate from the octopus until I move on.

Groupers can lunge at their prey very rapidly and engulf it by quickly opening their large mouths, creating a strong suction force. It would seem that the octopus is living dangerously here, however the interaction seems casual and non-threatening.

I got lots of good photos of the octopus as it let me follow it around the reef for some time. I saw two other octos on this dive.

This Green Linckia starfish has had a rough go of it! Two of its five arms are in the process of regenerating after some type of trauma. This is the type of sea star I see most often at Honaunau.

I photographed the Bullethead Parrotfish shown above just after it had finished what appeared to be a confrontation with another fish of the same species. They were aggressively swirling around each other and appeared to be snapping their jaws. Then this one swam in front of me with its fins flared while the other one swam away.

This Crocodile Needlefish is often mistaken for a Barracuda by snorkelers unfamiliar with the local marine life. There are similarities - both are good-sized silvery fish with intimidating teeth. These fish often jump clear of the water in their pursuit of small prey. Incredibly, there are documented cases of fatalities where fishermen were stabbed by the sharp beak of a leaping Needlefish.

As I returned to the Two-Step, I swam over this handsome Green Sea Turtle resting in a cozy sand patch. The shell on this one is almost completely clean. Often they can have a mossy coating of algae.

On my second dive, I headed north and happened upon this large school of Yellowfin Goatfish cascading down the face of the reef.

This Crown-of-Thorns sea star was stretched between the tops of two coral heads like a hammock between two palm trees. It would have been neat to see how this ended but it would have taken too long.

Threadfin Butterflyfish are not only nice-looking fish but they're also fairly curious about divers and, therefore, easy to photograph. As delicate as that dorsal thread appears, I've never seen a Threadfin that was missing it.

This trio of Blue Goatfish was prowling the reef in apparent search of a meal. These are young individuals which will get a bit beefier looking as they mature.

This little guy is an Ambon Toby that I found all tucked up under a ledge. Tobies like this are actually tiny pufferfishes measuring around 5" maximum. They are often seen in pairs but this one appeared to be all alone.

Slate Pencil Sea Urchins can be found on almost all Hawaiian reefs. They are fairly big but, during the daytime, they are quite capable of tucking themselves tightly into nooks and crannies on the reef. At night they come out and wander about the reef.

Thus ended my post-tsunami dive excursion. I don't work for the Chamber of Commerce but I do want people to know that the reefs are in good shape here and the tsunami was of no consequence. If you're planning a trip to Hawai'i, there's no reason to change your mind.