Tag Archives: Macro

A Gray Seaslug

Posted on by under Macro, molluscs, nudibranchs, snorkeling

There have been a few finds lately at my local spot in Falmouth (and in other places in Cornwall) of the fantastically coloured Rainbow Slug Babakina anadoni. I have tried in vain so far to find it, but I did manage to find another species of Seaslug last Friday: Aeolidia filomenae. It is the opposite of the Rainbow Slug; large, not small, drab, not extravagant, and common instead of rare. More of an understated beauty I guess, and still a nice find! This species feeds on anemones (mainly Beadlet Anemones but also Snakelocks Anemones) rather than the Candelabrum hydroids the Rainbow Slug prefers. I am not very good at spottting nudibranchs so the plan is to keep looking this spring and find more species!

Green Paddleworms

Posted on by under Macro, worms

The Emerald Green Paddle Worm (or Green Leaf Worm) Eulalia clavigera ranges from a few to 10 centimetres and is common in rockpools in Britain (although most are probably more familiar with their egg masses, see here). During a recent scramble over the Trefusis Headland I noticed some out of the water on Codium adhaerens seaweed. Using my cygnustech diffuser and a bit of extra magnification courtesy of a Raynox clip-on macrolens I got to work! Taking photos of these worms is difficult as they are continuously on the move. It is also hard to get close to them with the diffuser bumping into the rocks and obscuring the light. However, they are very rewarding subjects; worms are usually overlooked but they are very beautiful! The Codium seaweed proved a perfect background, absorbing all light, a bit like black velvet. When you spend enough time on your knees peering down, you also always notice other things, some tiny springtails Anura maritima as well as some even tinier red mites (see also this old post). One of my new year’s resolutions is to photograph more worms – and the good thing is that there are many other species available, including paddle worm species, one of which is in the process of being described new to science by my friend David Fenwick).

macro macro macro

Posted on by under Macro, mzuiko60mm, shells, snorkeling
There was little wind last Saturday and a superlow tide so time for some rockpool macro! Above, a Purple Topshell Calliostoma zizyphinum; common but and pretty. I liked the background which was achieved using a relatively shallow depth of field (f/8). I took my time exploring a small patch (core body temperature slowly decreasing) as this is the only way to find creatures that are smaller than topshells. I spotted a St. John’s Stalked Jellyfish Calvadosia cruxmelitensis and took the same shallow depth of field approach (f/5.6).
Lastly a pretty little mollusc: the White Tortoiseshell Limpet Tectura virginea. (It is only about half a centimetre long, so I had to use my CMC-1 wetlens for extra magnification.) This species is found on calcified red seaweeds on which it grazes. Their colouration is amazing (I especially like that the growing edge of the shell looks very different). Similar-sized Blue-rayed Limpets (see this recent post) are much more often photographed than this species – what can I say, Tortoiseshell Limpets are the hipster’s choice!

Rockpool Macro

Posted on by under Macro, snorkeling

Easterlies (bad viz) and low tides meant some macro photography in the rockpools this Saturday. The water is getting chillier but staying in for two hours is still possible. I returned to a subject I tried my hand at before: the tube feet of a Green Sea Urchin (Psammechinus miliaris). The 60mm macro + cmc-1 wetlens plus some cheeky cropping gets me close, although I always want to get even closer! I was happier with the results than the previous times, so I posted it on instagram (@an_bollenessor). Below a more zoomed out view of the underside of the urchin, yours truly in the water, a common brittlestar, a small brittlestar, a pheasant shell, a tiny nermertean worm which might be this (thanks David Fenwick!) and a detail of a redspeckled anemone.

Kennack Sands Shoredive

Posted on by under cnidarians, coral, diving, Macro

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

Posted on by under Macro, photography, tunicates

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’.

A Late October Snorkel

Posted on by under cnidarians, crustaceans, molluscs, mzuiko60mm, photography, shells, snorkeling, tunicates
I have a lot more pics from this year to put on the blog but those have to wait, as I want to post some photos from last Saturday first, when there was little wind, a low tide and some sun! The viz was not great as expected, so I brought the macrolens and went in search for some small critters. No special finds, but I was very happy with my shots of a common little mollusc the European Cowrie (Trivia monacha). Most people will be familiar with this species as beach finds of empty shells, but not know how it looks like when it is alive, when its mantle covers most of the shell, it shows its striped tail at the back and a siphon and cute little eyes at the front. I used a shallow depth of field (f/4) to get rid of the ugly cluttered background, which worked well if I may say so myself (I need to try this technique more often!).

Many other critters were found too and I took shots of a selection. First, a Sea Spider, all legs and crawling away. A tiny mat of colonial tunicate that looked like a persian rug on drugs. A quick shot of the ubiquitous (if you know where to look – on kelp fronds) blue-rayed Limpets and a stalked jellyfish. Finally, I spent a lot of time taking shallow-depth-of-field AND slow shutter-speed photos of a scorpion spider crab in a snakelocks anemone to get some sort of ‘artistic’ shot. It did not really work, but it was fun nonetheless and I will have a go at it again. After almost 2,5 hours in the water I stumbled back to the car to get changed – an afternoon well-spent!

Pheasant Shells

Posted on by under Macro, molluscs, rock pooling, shells, snorkeling

The Pheasant Shell is one of my favourite little critters in the rockpools in Falmouth. It is a bit weird to refer to these organisms as ‘shells’ actually, as they are living things and the nonliving shell is ofcourse only a part of them. The confusion extends to its scientific name: this species was previously known as Tricolia pullus, but has recently been split into a Southern European T. pullus species and a Northern European T. picta species. Perhaps the dust needs to still settle on that one.

I have taken these photos, on different occasions, with the mzuiko 60mm macrolens and the nauticam cmc-1 wetlens. The extra magnification the latter lens (screwed onto the housing) offers is great; although somehow I always want to get even CLOSER! I have not nailed the Pheasant Shell shot either. Reflecting on these pics I think I need to use a shallower depth of field to get rid of cluttered backgrounds. Next time.

The calcified operculum (the little door to close the shell) is clearly visible in the first photo above, as are the tentacles. On the second photo above you can even see that the left ‘neck lobe’ is more deeply digitated (fingerlike) than the right one. For more detailed (studio)shots of this and other molluscs please see Morddyn’s flickr account. I will post more macroshots of other mollusc species soon!

Black-faced Blennies

Posted on by under diving, EMWL, fish, Macro, Silver Steps

Dear reader, it has been a while! With the weather taking a turn for the worse, I thought it would be high time to start updating the blog again. I have taken more photos this year than ever before, and actually have dived my local shore site “Silver Steps” in Falmouth ‘to death’, so now have plenty of material. I’d thought I start with a post on one of my favourite fish, the Black-faced Blenny (Tripterygion delaisi). This is a beautiful little fish (a triple-fin blenny, not a ‘true’ blenny) that lives under rock overhangs, usually perched upside down. Breeding males are bright yellow with a black head and an electric blue edged dorsal fin, while females and males outside of the breeding season have a mottled brown-white coloration (which is equally beautiful testified by the pic on the top right). These fish (especially the females) are skittish and also require a bit of contortion to photograph under the overhangs but it is more than worth it! Below a photo-dump of fish shots taken with my 60mm macro lens and a combination of that lens and a superduper macro-wide-angle wetlens (details of which I am bound to bore you with in coming posts!).

A weird little hydroid

Posted on by under cnidarians, hydroids, Hydrozoa, Macro

This is a weird little hydroid and so only has a Latin name to go by: Candelabrum cocksii. It was first described by Cocks in his ‘Contributions to the fauna of Falmouth’ in the 1850s and it is quite common locally. I find them mostly as pictured here, but sometimes I see them with their foot extended, going from a centimetre to 8 centimetres or so in length. This allows them to rove over the rock surface in search of tiny (crustacean) prey. Their mouth is located at the end of the trunk which is covered in ‘capitate’ tentacles (see the pic below for anatomical labels). The white spheres are gonophores used for reproduction. It should be possible in summer when these hermaphrodites reproduce to see dedicated clasper tentacles holding the embryos, that would be cool (to me at least!). Btw, I remembered I posted about this species not even that long ago! See here and also see this link and this link from fellow enthusiasts across the pond who likewise have been fascinated by Candelabrum.