A while back I was lucky to be one of the two winners of the Hilda-Canter Lund prize (see this post). An exhibition featuring seaweed photography organised by the British Phycological Society at the University of Nottingham has now been opened (outdoors rather than indoors for obvious reasons). The nice thing is that the organisers have also put the exhibit online, if you are interested, please click this link.
After posting this photo on the Seaweeds of the NE Atlantic group, I received a lot of positive replies, and Jason Spencer-Hall, Professor at Plymouth Uni and president of the British Phycological Society asked me to submit this photo for the annual Hilda Canter-Lund Photo competition. This award was established in recognition of Hilda Canter-Lund, whose photomicrographs of freshwater algae combined high technical and aesthetic qualities whilst still capturing the quintessence of the organisms she was studying. I am pleased to say I ended up as joint winner (there is always a micro-algae and a macro-algae winner), prize money included! The caption:
Carpodesmia tamariscifolia (Bushy Rainbow Wrack) framed by Himanthalia elongata (Thong Weed) in a rockpool in Falmouth, Cornwall, U.K.
I took this photo of this stunningly beautiful iridescent Rainbow Wrack spring 2020 at a low tide when this rockpool was no more than a meter deep. This species is a perennial that forms a home to many animals, from sponges to tunicates, and is often used by the Bull Huss to attach its egg cases to. Many seaweed species also grow epiphytically on Bushy Rainbow Wrack, such as the invasive red species Bonnemaisonia hamifera on this photo. Photo taken using an Olympus OM-D E-M5 Mark II with an 8mm fisheye lens and with a single automatic strobe.
Definitely THE photo competition for me and I hope to get more good shots for the 2021 installment (most probably next March/April). As this post is short, below a photo (taken with my old camera) I submitted in 2017 (I managed to forget about the competition in the intervening years).
A day without wind last Thursday and so time for a look at the seaweeds. As expected, the pinks, reds and purples have made way for browns, yellows and greens. The water was a bit cloudy but with the wide angle lens you can get close up minimising the effetc of the bad viz. Wrasse were tending to nests and tiny pollock swam around but otherwise I could not spot not many animals; the exception was a big spider crab who was as startled as me. Above the common species Thin Sausage Weed Asperococcus fistulosus. Not the most beautiful species but let’s say it looks interesting. To my horror, I discovered that my favourite seaweed Bushy Rainbow Wrack has changed genus and is now called Carpodesmia tamariscifolia instead of Cystoseira tamariscifolia. I hate name changes in general but this just an ugly name! Two photos of this species below as well as one of Bushy Berry Wrack Cystoseira baccata which also has moved genus and is now Treptacantha baccata… After that a floating piece of Desmarest’s Flattened Weed Desmarestia ligulata and some Pale Patch Laver Pyropia leucostica.
A while back I thought it might be an idea to experiment with flash photography. Using one flashgun (strobe) I set out in my usual spot. I should have tried this a lot earlier! Although supershallow water has enough light to do without flash, a main problem (for me at least) is to balance harsh white sunlight (from above and from reflections from the white sand below) with the darker subject. By illuminating the subject, this effect evens out. I took probably almost a hundred photos of the Bushy Rainbow Wrack above and this one came out alright! Apart from the Thong Weed framing it, I like the row of Thong Weed ‘buttons’ in the foreground. I held the strobe in my hand for this one, and I used my older strobe, as my newerand more expensive manual one just not fires reliably for some reason (still trying to find out what is going wrong). Below some more strobe experiments. I really hope diving will be allowed soon so I can play around more with the wide angle lens and two strobes.
Some long overdue seaweed pics from the end of the seaweed bloom when the tides were low. I took many photos but few, if any, very good ones; sometimes you just are a bit out of luck I suppose. I have also started a Seaweed Gallery page (link also pinned at the top), gathering photos of as many different species I can find here in Cornwall. It is very much a work in progress and not a proper guide at all, but I hope it can help complement exisiting guides. Note that just a photo often is not enough to correctly identify species, so I have kept it at more easily recognisable things. On another note, I recently gave a ‘lockdown’ zoom presentation about my very niche hobby of taking photos of seaweeds for the Cornwall Wildlife Trust. If you are interested you can find it on youtube (I have not watched it back myself as if there is one thing I dislike it is seeing myself talk on video (actually, there is one thing I like even less and that is seeing myself talk on a video that is there to see for the whole world!)). I talked not so much about photography or seaweed biology as I am far from an expert in either topic, but more about how I started out with rockpooling when I moved to Cornwall in 2012, and how this slowly spiralled out of control and ended up with me lying facedown in rockpools year-round taking photos of seaweeds. Anyway, a few species below: Irish Moss Chondrus crispus, Berry Wart Cress Sphaerococcus coronopifolius, Red Rags Dilsea carnosa and Desmarest’s Flattened Weed Desmarestia ligulata.
Some more March shots of seaweeds but this time taken in a large, very shallow pool a bit higher up on the shore. It is dominated by Slender-beaded coral weed Jania rubens together with some other favourites (but many other species, such as Palmaria, Polyides or Furcellaria are missing this far up shore). I have added the names to some species, as Francis Bunker (one of the authors of the Seasearch guide to the Seaweeds of Britian and Ireland) had done previously on the Seaweeds of the NE Atlantic facebook page for another photo (see this post). Nice to be able to get so many species into one shot. Next an over-under (well, a bit) shots for another general impression (see the shadow of my camera), some Bushy rainbow wrack Cystoseira tamariscifolia, False eyelash weed Calliblepharis jubata surrounded by other species and a tiny fluffy red seaweed (do not know which species) that has found a foothold on the bare bedrock. The photos are not as sharp as I wished unfortunately. I have another batch on the computer that turned out better luckily, will post these soon!
Last week it was time to check the state of the seaweeds and as expected they looked glorious. Unfortunately it was a bit windy and choppy and so the viz left something to be desired, argh! These are some of the better pics. I am in the process of creating a gallery of seaweed species (just reds to begin with), see the link at the very top of the blog. This is by no means a proper guide, as for that you often need more detail than just underwater impressions, but extra images might help in conjuction with a proper guide such as the “Seaweeds of Britain and Ireland” Seasearch book. Anyway, I have started gathering old pics and hope to add more soon. The common flat red species in the photos above and below is very pretty but it is one of these species you need to look at under the microscope so I will not attempt to label it with a name (yet). Other species can be identified more easily, such as Under tngue weed Hypoglossum hypoglossoides (two photos below). Below, Thong Weed Himanthalia elongata, Little Fat Sausage Weed Champia parvula and Juicy Whorl Weed Chylocladia verticillata and a bit of Bushy rainbow wrack Cystoseira tamariscifolia covered in red epiphytes.
I joined a seaweed identification get-together at the Cornwall Wildlife Trust organised by Matt Slater last week. It was fun to chat with likeminded people and also made me want to stick my head underwater again! The weather has been horrible for over half a year now and I have been in only a few times, with little chance to take decent photos, hence the blog inactivity. This has been especially frustrating as March is the best month for seaweeds (see the 2017 Falmouth Seaweeds tag) and I am missing my window. I therefore jumped in the next day. The tides were at their very lowest, actually too low for most of my usual rockpool spot! The viz was not great due to the 20+ mph winds but just about good enough for the fisheye lens. I really hope for some good weather in the next 2-3 weeks to be able to make the seaweed photos I really have in mind.The very top photo is Berry wart cress Sphaerococcus coronopifolius shot with a very shallow depth of field. The single stone above hosts a whole variety of species. The largest is Slender wart weed Graciliaria gracilis and just as the Berry wart cress it is covered in mucus threads, which must come from the tiny gastropods Rissoa parva that can be seen on it when you zoom in. To the left the wiry Black scour weed Ahnfeltia plicata. To the back the invasive Devils tongue weed Grateloupia turuturu. Green Ulva and young kelp can also be seen. Below some Harpoonweed Asparagopsis armata. The snakelocks anemones Anemonia viridis were also out in force. I hope the weather settles soon!
A whole bunch of photos of yesterdays snorkel at Castle Beach. The viz has cleared up, although nothing like the fabled June 2017 viz, will it ever be as good again?! (see here). There are lots of yellows and browns, some greens, a substantial dash of blue of the rainbow wrack but hardly any reds and purples at this time of year. The glow of the sun exarcerbates the yellowish vibe, but somehow I suspect the colour temperature of the Olympus somehow is a bit off compared to my old Canon. I am not entirely sure about this though, and in theory this is all correctable postprocessing, I just don’t know how! The photo below shows some of the common species, from the bottom right to top left: Cladostephus spongiosus, Dictyota dichotoma, Asparagopsis armata, Cystoseria baccata with Sargassum muticum in the background. Ij the second photo it is obvious that the Wireweed and Rainbow wrack are quite dominant, same for the Hairy sandweed Cladostephus spongiosus. The Thong (or Spaghetti) weed is covered in fuzzy epiphytes. I will keep practicing for when the reds and purples come back in autumn!
I had my first two outings trying the the mzuiko 66mm macrolens with strobe this week. I managed to make some OK pics more due to luck than wisdom! It is actually not that difficult to find interesting subjects, but getting finding them back in the zoom finder is quite tricky (I usually point at a subject with my finger and then try to find a big white blob back when looking at my camera, then hoping to encounter the animal somehwre nearby). I managed to find a Least chink shell Lacuna parva spent on a Rainbow wrack Cystoseira tamariscifolia plant and spent 30 minutes looking at it. Although there is not much definition on this tiny (5mm) all-white organism, the blue background looks great. I will definitely go back to specifically look for (slightly bigger) things on Rainbow wrack! (The iridescence of this seaweed means that if the (strobe)light hits it at a different angle it is a dull brown rather than a deep blue or purple.) To give an idea of how tiny some things are see the photo above of the shell-less mollusc Runcina coronata (this is an ophistobranch, it does not have gills on its back as do nudibranchs), it was really, really tiny! This photo is nice for ID purposes but I do not expect I can take good photos of species this small (you reallly need an additional macro wetlens for that). I only later noticed the even smaller mollusc Flat skenea Skeneopsis planorbis next to it. (I identified this species using the excellent new Essential Guide to Rockpooling by Julie Hatcher and Steve Trewhella by the way, highly recommended!). I also noticed I need to clean my finger nails! (More tiny molluscs were present, including Eatonina fulgida.) Next, the mollusc Tritia reticulata (which I knew under the names Nassarius reticulatus or Hinia reticulata….) or Netted dog whelk in common parlance. These are very active and fun animals. The macrolens really brings out how battered and overgrown the shell is and the beady little eyes also stand out. A little hermit crab posed nicely as well. Another difficulty is working the strobe. Unlike the ‘normal’ ambient light photography I am used to, the image after clicking is different from that seen through the viewfinder so it is trial by error. Often the subject is not properly exposed. Also, floating particles cause backscatter. Perhaps I should try a snoot to minimise this effect, which can ruin an otherwise decent (in focus) photo, like this one of a Stalked jellyfish Haliclystus octoradiatus which are common at the moment. (Notice the tiny molluscs on the seaweed in the background.)Finally some random pics: a Light bulb seasquirt Clavelina lepadiformis, two colonial seasquirts (a Morchellium argus and a Didemnid species) and a Bryozoan (it is late and I have not looked up the species). A whole new world opens up if you look at the tiniest denizens of rock pools, all complex, colourful and fascinating!