Three weeks back I had to pick someone up from Newquay airport and decided that it would be a good idea to combine that with some rock pooling action on the North Coast. I was told that the Pentire end of Fistral Beach was a good spot for Dahlia anemones and so the decision was made. Unfortunately I did not find any anemones, but it was a beautiful day nonetheless. The relatively few North coast sites I have explored all seem a bit barren in comparison to the South coast: more exposed, with sand meeting scoured rocks, leaving only hardy seaweeds, mussels and beadlet anemones to cling on. I need to spend some more time to find the right spots that’s for sure. The top of the cliff contained some rock pools, but they were quite milky due to the recent weather. They were full of the beautiful Brown tuning fork weed Bifurcata bifurcata (as I was on an anemone hunt, I was hasty and most photos did not come out especially nice, so see this old post for a nice photo of this species). The rocks were very slippery due to the (edible) Laver seaweed Porphyra (front of the next picture).At the base of the cliffs were some gullies, the largest of which is locally known by the rather grandiose name ‘Cave of Dreams’. No major finds here, but it was nice to see the many colour varieties of the Dog whelk Nucella lapillus (egg clusters in the background). The second photo is an especially pretty specimen; I only later noticed the green worm (probably Eulalia viridis) and the reflection in the beadlet anemone of me holding my iPhone! Beadlets are super common here. It is interesting that this species has two main colour varieties (red and green), just like the Snakelocks anemone (green and purplish) and the Plumose anemone (white and orange). This might be a coincidence but I find it intriguing. Lastly, some Sea pink or Thrift Armeria maritima.
As I drowned my Panasonic Lumix (some pics here) and as my Canon Powershot in an underwater housing (some pics here) is quite cumbersome (forgetting the option of taking my iPhone underwater), I decided to buy a new point-and-shoot underwater camera. All major brands have a rugged (shock-, dust- and water-proof) option and needless to say each has their pro’s and cons. I decided for the Canon Powershot D30 because I know and like the brand and because it goes deepest (24 meters) which would mean I could take in on any future dives. I later read (tip: don’t read more reviews after you have ordered) that the aperture is relatively small (bad for low light (UK underwater) environments) and that it had not been updated significantly from the previous version…so it is not all great. In general, point-and-shoot camera’s won’t give you super great images (although sometimes you strike lucky). However, there is a VERY large price gap between these camera’s and SLRs in housings (with lights). Check here for a nice Beginner’s Guide to Underwater Photography.I tried out the camera just for a little bit as I did not have much time. I went rock pooling which meant I could not look through the viewfinder for any underwater pics. The pools at the moment are dominated by brownish fuzzy algae which do not look great and it was overcast, so conditions were not ideal. Here a snap of Morchellium argum, a colonial tunicate that is common at the moment:Two pics for comparison with the iPhone of a Dog whelk Nucella lapillus laying eggs. I will probably still stick with the iPhone for above-water pictures as I prefer tapping the screen to focus as well as having the olloclip macro option. Also, the colours seem more vivid, although to be fair I need some more time to play around with the Canon. iPhone first, Canon second:
It was too cold and windy to spend a lot of time on the beach, so I took a closer look at my seaweed catch back home. I was amazed at the diversity of organisms growing amidst the weeds. A lot of them are easily overlooked when rock pooling as you need some time (and preferably a comfortable seat) to find them. Below Bushy rainbow wrack with epiphytic False eyelash weed and Pink plates Mesophyllum lichenoides (I will not give the Latin names of species described in preceding posts for brevity). Some bright green sea lettuce Ulva, a grey topshell Gibbula cineraria, a snakelocks anemone Anemonia viridis and in the middle a bright orange colony of the tunicate Botrylloides leachi: I found many large Breadcrumb sponges Halichondria panicea but the picture I took did not turn out to be in focus. I do not know what the organism below is, perhaps a bryozoan (please feel free to comment!). I am not sure what this is either! Dog whelk Nucella lapillus eggs (I now also notice a tiny brittle star in the middle): Egg cases of the thick-lipped dog whelk Hinia incrassata: A small snakelocks anemone; interestingly enough all of these were the green variant (with purple tips) and there were none of the pinkish ones. I have read some interesting notes about aggressive behaviors between the two types, something to look into for a future post. A Marbled Crenella Modiolarca tumida, a tiny bivalve typical of seaweed holdfasts: A tiny White tortoiseshell limpet Tectura virginea: I saw something creeping out of the seaweeds on the floor out of the corner of my eye: a small Long-legged spider crab Macropodia rostrata. This species adorns itself with seaweeds for camouflage: