I was out snorkeling with a friend when I noticed her taking photos of a small clump of floating debris. When I headed over to see what was so interesting about the debris, I saw a host of tiny fish swimming around and within the clump. This was a small example of how fish, particularly smaller fish, will use floating objects to give them some cover and security from predators.
Most of the fish appeared to be sergeant fish, probably Indo-Pacific Sergeants, no more than half an inch long, but with their dark bars quite distinct. There were a couple of other species there, too, in smaller numbers, but I’m not sure what they were. (Update: The slightly larger grey fish are freckled driftfish. Thanks to John Hoover for the ID.)
The second photo gives a sense of scale and shows how small this little world was. It also shows the fish migrating across to check out whether this new clumpy thing might make a good new home. They did this with both of us, but returned to the floating debris, figuring wisely that it offered better shelter for them.
Posted in response to this week’s Friendly Friday challenge theme of ‘Quiet Places.’ See more responses here.
This week’s Friendly Friday challenge theme is ‘Morning Rituals.’ See more responses here.
Most mornings, I try to get in the water, as conditions and schedules allow. Morning is the best time for snorkeling as the water is usually calmer before the wind picks up as the day wears on. Visibility can vary from day to day and it can help to check surf reports to see if there are any swells moving in. But calm water doesn’t guarantee good visibility just as swells don’t always mean bad visibility. There’s only one way to be sure and that’s to jump in.
My favorite thing about snorkeling is that every day is different and I never know what I’ll see. Going to the same spot means I become familiar with some of the regulars, but there are always transient creatures passing through including rays and dolphins. And while those big creatures are great to encounter, it’s equally interesting to watch the activities of smaller fish and marine invertebrates.
It’s a rare day indeed that I don’t emerge prattling on about something I saw while I was in the water. And on those rare days, well, I’ve still had a good swim to set me up for the day ahead.
One day, while I was in the water, I ran into a couple of snorkelers who were watching this creature. It was high up in fairly deep water in the middle of the bay. It looked almost translucent and very small, only 2 or 3 inches long. It wasn’t even clear whether this was a live creature or just a bit of floating debris. They took photos, I took photos, but I wasn’t optimistic on how they’d turn out because it’s hard to get the focus right on something like this.
After they left, I hung around and saw the creature swimming, coming up in the water. I took a couple more photos before it descended again. When I got home I was thrilled that, out of the photos I took, this one turned out pretty well. From it, I could see that this was a very small flowery flounder. The general shape and details are a very small version of the adult fish. What’s interesting about this is that flounders start out life looking like regular fish, swimming upright and with an eye on each side of its head. But within a few days, flounders start to lean to one side and one eye begins to migrate to join its partner on the other side.
This tiny, very young flounder has already completed that transition.
This week’s Friendly Friday challenge theme is ‘Anniversaries.’ See more responses here.
Often, on our wedding anniversary, my wife and I go to Hawaii Tropical Bioreserve and Garden (formerly Hawaii Tropical Botanical Garden). This year the garden was shut, and still is, probably until tourists return to the islands. So a different anniversary is my birthday, which is not marked with candles on a cake, since that would be prohibitively expensive, but usually by a trip somewhere and a meal out. This year we went down to snorkel at Two Step and then had a wander around Pu’uhonua o Hōnaunau National Historical Park, otherwise known as Place of Refuge, which is right next door.
Two Step is a very popular snorkeling spot on Honaunau Bay, south of Captain Cook. This is a marine reserve so no fishing is allowed and the fish tend to be more numerous and mellow because of this. It’s a popular spot to see and swim with dolphins, though I haven’t done either of those things there. Currently, it’s not nearly as busy since there are very few tourists on the island and those that are here are diligently following quarantine rules (I’m trying to keep a straight face writing this!).
After our swim we made the short walk to Pu’uhonua o Hōnaunau National Historical Park. The park is on the south side of the bay and, at the moment, is fully open only on Fridays, Saturdays, and Sundays. However, on the other days, pretty much everything else is accessible, it’s just that the parking lot and visitor center are closed. What this means is that there’s basically nobody there so our visit was quiet and uncrowded. The park is an important place in Hawaiian history, and the location is beautiful. What’s not to like?
My local snorkeling spot has been roiled with excitement lately over the appearance of a couple of clumpy nudibranchs. Well, it’s exciting for us.
Nudibranchs (pronounced noo-di-branks or noo-da-branks) are members of the sea slug family. Granted this doesn’t sound too exciting, but nudibranchs are strange and exotic and often wildly colorful. The reason I haven’t posted photos of a nudibranch before is that I’ve never seen one before, let alone got a photo of one. That’s the downside of nudibranchs; they tend to be on the small side. One to three inches is typical for most of them. But clumpy nudibranchs are big, up to 10 inches long. In nudibranch world they’re like King Kong, visible from space.
When they were first spotted, I didn’t see them, but I was on high alert. And then, one day, I saw my first nudibranch. I popped up and called to my wife, only to see her waving at me to come see the nudibranch where she was. So this established that nudibranchs are like buses; you wait and wait and wait, then two come along at the same time. Since then, I’ve seen one or both of them most days I get in the water. Each time I’ve seen either of them they’ve been motoring along at speed, at least for a slug.
Clumpy nudibranchs have some color variations which can be seen in these photos. One has more yellow coloring, the other (second photo) being browner. The order’s name, Nudibranchia, means naked gills. These are the feathery clumps to the rear of the nudibranch. The two protuberances at the front are sensory organs. Clumpy nudibranchs feed mainly on sponges (not the cake variety).
I’ve posted photos of shoals of little fish before, making the assumption that these were juveniles of some fish species or other. However, this year the local snorkeling spot has been thick with these fish. It’s not been unusual for me to get in the water and find myself surrounded by a swirling ball of fish. It can actually be quite disorienting.
Because of this bumper crop, it occurred to me that I really should try to identify these fish. I think the answer is that they’re Hawaiian silversides, an endemic species. The problem is that there are a couple of other possible species, the goldspot sardine and the Hawaiian anchovy. Short of catching a few and examining them in the light of day, it’s hard to tell them apart.
Regardless of species, it’s been fun interacting with the shoals. Swim toward them and the shoal will part, then recombine behind. Point a camera in their direction and they jet off in another direction. It’s best just to float in the water, with the camera pointed in the right general direction. Then they’ll get quite close and I’ll snap a photo or two hoping something will turn out.
In the top photo, a shoal surges by in front of me. Below, the silvery stripe along their bodies can be seen.
This is a follow up to yesterday’s post about swimming with dolphins. Within a few months of moving to the Big Island I got to swim with dolphins. A large pod moved into the bay near where I was living and stayed for several hours. Swimming with them was great, but at that time, I didn’t have an underwater camera.
Since then, I’ve mostly seen dolphins from the shore, or just zipping by far enough away that I get a glimpse, but not much more. Several times dolphins have been around just before I get in the water, or just after I got out, or they’ve hung around in the bay on a day I didn’t swim at all.
Last week, several dolphins showed up just after I’d got out, but since they seemed like they might hang around, I got back in and swam out. By the time I got to the place they’d been, I saw them heading south. Four days ago, a small group of dolphins swam by, not far from where I was, without stopping. I got one not-very-good photo.
Three days ago, my wife and I were just preparing to get in when she saw dolphins. They were heading south, but not at speed. Then they seemed to pause. A couple twirled out of the water – spinner dolphins. Perhaps they were going to hang around. We got in the water and headed out.
From the water, it’s harder to spot dolphins unless they’re jumping. When I stopped to look, I couldn’t find them again. When I did, they appeared to be receding. I swam some more, looked up again, and saw dorsal fins. They were heading our way. I ducked my head underwater and got my camera ready. Moments later a group of 10 or more spinners emerged from the hazy water, got rapidly larger, and then passed by on either side of me. They kept going deeper into the bay and I turned to follow. I heard my wife shout and turned in time to see another group go by.
There’s no point chasing dolphins, and it’s not something anyone should do anyway. I’m not a fan of ‘swim with the dolphins’ tours, where they chase them and then dump a bunch of people into the water to get up close and personal. But when they hang around an area, I hang around too in the hope that they’ll come over to check me out. These dolphins did. The next few minutes were a whirlwind of dolphins passing, circling, diving, and occasionally jumping. In close proximity, their size and power was clear, as well as their intelligence and curiosity.
But then, as quickly as they’d arrived, they headed out to sea. The whole encounter was probably no more than 10 minutes, but it’s one I won’t forget, and when I got home I was thrilled that I’d captured several good images.
This is the final day of Becky’s July Squares challenge theme of ‘Perspective.’ See more responses here.
I was planning on posting images relating to the final days of people who were human sacrifices on the island, a long time ago in case you’re wondering. But I changed my mind after an encounter with a pod of spinner dolphins a couple of days ago. I’ll post more photos tomorrow, but here are a couple to start with.
The top photo shows one of the dolphins coming over to check me out. In the bottom one, a group of dolphins cruises by below me. From my perspective, there are few finer things in life than such an encounter.