Some Silver Steps Molluscs

After posting about the fish and crustaceans of my local dive site Silver Steps in Falmouth, it is time to give molluscs some love! The photos in this post were all taken at 5-10 meter depth at a gravelly bottom this year. Above (and at the end) the Turban Topshell (Gibbula magus) which is common subtidally. However, this was the first time I noticed that they have pretty sky-blue eyes! It is one of my challenges to take a pic of it with both eyes in the frame next year. Below, another favourite species of mine: the Pheasant Shell (Tricolia picta, previously P. pullus). This was a large individual (close to a centimetre?) with a candy cane striped pattern that I’d never seen before.
Next up a juvenile European Stingwinkle (Ocenebra erinaceus) on top of a Saddle Oyster and the Common Keyhole Limpet (Diodora graeca). The latter might be called ‘common’ but I do not see it very often. Going from the Gastropods to the Bivalves: a King Scallop (Pecten maximus) with its many eyes. Moving to yet another Mollusc Class: meet the Cephalopod Common Cuttlefish (Sepia officinalis). This was a very large individual covered in many small white lesions, probably near the end of its life. It was fine in my presence and let me take some photos. It is sometimes strange to think that these intelligent creatures are more closely related to a clam than to a fish! Some bonus photos at the end.

The Crack pt. 1

At my local shoredive site Silver Steps here in Falmouth, there is a crack in the rocks, maybe three meters long and not very deep, that is home to an array of interesting species. I have posted pics from this spot before, for instance that of a big conger eel (which has since left it’s hidey-hole, perhaps it swam off to reproduce and die in the Mid-Atlantic?). Anyway, I visited again this week and tried close-up shots with my macrowide angle probe lens. The prawns are much bigger here in the rock pools, but I am not sure if they are Paleamon serratus or P. elegans, as this requires a closer look at the serrations on the rostrum. Regardless of species name, they are stunningly beautiful animals with their blue and yellow legs and black-striped carapace.

Some more pics below (notice that in some another animal is lurking in the background!). Some species are easier to photograph than others, clingfish are very shy for instance. Anyway, there are some more ideas I have, for instance trying to capture multiple species in one frame and post about them in ‘The Crack pt2.’!

Back to Silver Steps

With the camera housing back, I have been in the water again lately, taking quite a few photos. I am lagging behind with posting quite a bit (this will allow me to post when I cannot get in the water later in the year) but should occasionally maintain the blog over summer, so here is! My local haunt Silver Steps provided during two dives with the macro lens. Above a Twin Fan Worm (Bispira volutacornis). These are quite shy (i.e. they retract into their parchment-like tube when their composite eyes detect a curious diver) but also are attached to cluttered rock walls. To blur this unappealing background, I used a very shallow depth of field (f 2.8); this also has the advantage of letting a lot of light in so ISO can be decreased to 100 – sorry non-photographers!). Below a collage of other ‘usual suspects’ (names under the photos) but ALSO I SPOTTED AN OCTOPUS! Crouched in a crevice and with only a macro lens I could not do it justice but it was still a very nice encounter.

Fish of Silver Steps

It is almost February so it is high time for the first 2025 post! I have quite some photos left from last year and I thought a fish photo-dump might be a nice idea. My local shoredive site ‘Silver Steps’ has quite a diversity of fish; however, I have only ever seriously tried to photograph benthic species as the pelagic swimmers are just to difficult to capture, even just for ID purposes. A shame, as I have seen some interesting Seabream species last year (Gilthead Seabream, schools of juveniles that might be Axillary, or Red Seabream and even a Common Two-Banded Seabream) and the wrasse species are very characterful (and I have seen others take great photos of them). Anyway, first up is a Conger Eel (Conger conger) I often visit. Quite menacing, although probably not as big as it looks. I always find it in its lair, probably only coming out at night to hunt (having said that occasionally I do see free-swimming congers during the day). It is always surrounded by big prawns who do not seem to be on the menu somehow, but must be protected from other predators this way.

Below photos of various smaller fish hiding in the rock cracks (click for names on the pictures).

Finally a favourite of mine: the Topknot (Zeugopterus punctatus). Not quite nailed the shot yet – maybe this year!

Kennack Sands Shoredive

It was a glorious day last Sunday so time to get outdoors. After a pitstop at Windmill Farm (see here), we sat down at Kennack Sands Beach. I brought my scuba kit as I wanted to have a little looksee under water. I could not find any (shore)diving reports on this location, but I had snorkeled here a few times before and it looked interesting, a serpentine reef parting the beach in two. The tide was high and there was a bit of a swell so it took some swimming out – even so I never got any deeper than seven meters. I was a bit disappointed at first: the sands were shifting and there was no chance of finding interesting flatfish or molluscs there, the rocks has furbelows kelp on them but otherwise nothing too special. I then found a slightly deeper gully and took a closer look at the rocks and found loads of interesting little things, even two tiny dead man’s fingers soft coral!

Moods

The inhalant (left pic, 8 lobes) and exhalant (right pic, 6 lobes) siphon of the Sea Vase seasquirt (Ciona intestinalis). The pigments are thought to function as photoreceptors. This is a common species, especially in habitats disturbed by humans, and not too pretty (the latin name means ‘pillar of intestines’…) but if you zoom in everything reveals beautiful features! Quite moody shots, to which I have gravitated this year. I like the black backgrounds, which is achieved by letting very little light into the camera, with the strobes only lighting up the subject in the foreground – unable to illuminate anything in the open water (‘negative space’) behind. (A similar effect can be achieved using a ‘snoot’, but I have never managed to get that to work…) I have also tried to get closer and closer up with my macro wetlens, ideally I’d have some sort of microscope underwater! If you are on instagram, check out @an_bollenessor for more pics as ‘posts’ and as ‘stories’.

Back to Silver Steps

I recently bought (2ndhand) scuba gear and did a refresher dive; with the nice weather this week it was high time to get back under the waves and take some photos! I dived Thu/Fri/Sat at the main local shoredive site ‘Silver Steps‘. I went in by myself, but with a maximum depth of around 10 meters and good conditions this is not risky. The dives did not disappoint, the viz was excellent! Although I spotted cuttlefish every dive, I still opted for the macro lens, as I suspected I could not get great shots of them with my fisheye lens at 1.5 meter distance (I might have been wrong!). Instead of heading out to sea as some divers do, I always stick to the gullies by the rocks, diving below the kelp to see what happens beneath the rocky overhangs. There are three usual suspects hiding there, each with a very different personality. First, Leopard Spotted Gobies (Thorogobius ephippiatus) inhabit cracks in the rocks and are quite shy:

Second, Tompot Blennies (Parablennius gattorugine) are extremely inquisitive, often coming very close to check out what is going on in front of their domain:

Third, Black-face Blennies (which are not true blennies but triple fins) that only ever live under overhangs, usually head-down. I did not see males in breeding colours (black face, yellow body) but this colour form is even prettier I think:

When inspecting the rock walls carpeted in sponges, seasquirts, algae, worms and other things, I kept my eyes out for nudibranchs. Apart from a tiny crested aeolis, I spotted a good number of Discodoris rosi, busy mating and laying eggs. This species has only been observed in the UK for a decade or so but the population now is booming, with many reports coming in from all over Cornwall:

All in all a great enjoyable three dives! Silvery schools of sandeels and sprat/herring, many wrasse, cuttlefish, small and very big lobsters and a greater pipefish were also spotted. Unfortunately the weather has made a turn for the worse this week, however, there are still a few diveable months left this year…