An Alternative Natural History of Sussex.
This blog shows the highlights of my day to day findings as a naturalist and ecologist living and working in Sussex. Delivered with a pinch of nihilism, a dash of sarcasm and absolutely no tweeness, here is my attempt to show natural history as it really is: Brutal, beautiful, uncompromising and fascinating...and occasionally ridiculous.
I have been studying natural history for some thirty years, nineteen in a professional capacity. I currently work in Sussex as a freelance entomologist, ecologist and botanist and specialise in nature reserve and rewilding management advice based on the interpretation of the surveys I carry out. I also run a number of identification courses. An advocate of the pan-species listing approach. My main areas of interest are birds, plants and invertebrates and a lot of my spare time is spent in the field. I am the county recorder for spiders and bugs.
So I have just got back from the longest holiday I have had in a decade. Ten days on Jersey. After really getting the bug last September, I was desperate to get back there and get in the rock pools again and this time I timed it so I could do some rock-pooling every day for that whole period. More importantly though, I was accompanied each day by Nicolas Jouault, who took us to all the best places on the island (including a two day trip to the Ecrehous, which was so awesome it's getting its own blog post). Nick's knowledge of the island's marine species and where and how to find them is incredible and I am so grateful for all the time he gave me. Here's me, Karen, Nick and Lou Wagstaffe (Lou came out with us to La Pulente and showed us loads of stuff there - check out Lou's amazing photography here).
We did find rather a lot! Before I get to Nick's discovery of Discodoris rosi, please indulge me in this sequence of dorids, neatly setting me up for a rather stupid gag...
We saw plenty of these Warty DorisDoris verrucosa. Not a new one for me but a pleasure to see these large nudis again. They're almost too big for the macro!
On the second morning out with Nick, we headed to Le Hocq and Nick soon found our target species. The behemoth among nudibranchs, Dendrodoris limbata. This massive species should be handled with care, as it secretes a toxin to help it consume the sponges that it feeds on. I went on to find another three animals, including two immatures! I could not get enough of them. This was one of the key targets for me on this trip. They are a recent arrival to Jersey.
Terrible photo, but turning a rock to see Dendrodoris limbata and a Green Ormer in a 'yin and yang' like embrace is the most Jersey thing ever! There were three species of nudibranch under this rock. While I am at it, it's vital to turn rocks back the way you found them and gently too. It kills the life under them that can't move very quickly. There are some utter tools out there doing this wholesale, likely driven by illegal fishing. Just turn the rocks back, it really isn't that hard. Anyway, rant over.
We saw quite a few Sea Lemons Doris pseudoargus. A common and widespread dorid.
This one was a lifer. Geitodoris planata. Large and dark, often with pale starry patterns on them. These were at La Rocque and also the Ecrehous.
Then back to the star of the show. Nick found a bright orange-red dorid under a rock at La Pulente. We thought it was something else at first but then noticed the pale rings. It's the ridiculously named Discodoris rosi. DISCODORIS! FREAK OUT! And freak out, I did. That was the most unexpected find and completely new to the Channel Islands! Nice one, Nick.
Here are the best of my shots. Check out the translucent bases to the rhinophores.
And finally, Grannydoris hominesis. A recent DNA test led to the discovery that I am one quarter nudibranch, explaining my obsession with these awesome creatures! You see, my late Granny Doris fooled everyone for decades - we had no idea she was a nudibranch (to be fair, I did always think it was odd that she got through so many sponges). Here she is with her rhinophores retracted, awaiting a fresh delivery of sponge from Kwik Save. Miss ya, Gran.
Anyways. Back to reality. Another lifer for me was the awesome little Celtic Sea Slug Onchidella celtica (not a nudi though). They are all over the pier at La Rocque, we saw some 50 animals in a square metre. You find these sitting out of the water quite high up the shore, they are very slug-like but cute.
Edmundsella pedata was the commonest sea slug on Jersey. I saw 50 in one day and well over a 100 on the trip.
Nice to see a tiny Montagu's Blenny right at the top of the beach. This was a four blenny trip, I think well over 20 species of fish in all. I'll cover them more on the Ecrehous post.
I got a lot of lifers in the squidgy groups, like sponges and tunicates! Here we have Pyura tessellata.
And what I have as Ascidiella scabra.
I should have warned this post goes on for ever. Aeolidiella alderi was widespread but in low numbers. We had one or two on each session.
And what I believe are their eggs. A bit of foreshadowing here. Many nudibranchs are identifiable by their eggs through experience, association and deduction...
Remember the rock I said had three nudibranchs under at Le Hocq? It had a single Dendrodoris and a couple of Edmundsella and round the edge it looked to be covered in small hydroids. I went for the close focus binocular trick and spotted a tiny bit of egg white with yellow highlights. Hold on a minute, that's a nudi! We gently got it into the lid of the Ferroro Rocher box and it was none other than Trapania maculata (turns out this was only the 4th record for the island). For the record, this was a 12 nudibranch trip!
At Rozel I found my first cup corals. These were common on the Ecrehous. This is Scarlet-and-gold Cup Coral Balanophyllia regia.
Also there, Manilla ClamRuditapes phillipinarum. A recent non-native introduction to the island.
Facelina auriculata is surprisingly uncommon there. We only found two (one at La Rocque, one al La Pulente).
This place is incredible, like the surface of some alien world. Just watch these tides though, you can get caught out here easily. It's dangerous if you are not experienced and reading the tide all the time to go out far.
We found a couple of these stalked jellyfish Calvadosia campanulata, which is the one I see most often.
Nick identified this bryozoan at La Pulente, as the rarely-recorded Schizomavella sarniensis. There's so much stuff like this on the rocks, most of which I am clueless about. It's humbling but insanely addictive. I love being outside of my comfort zone.
I got very excited by this mollusc, only to figure out it's just an immature cowrie sp. (Trivia).
Round the other side of the island to Archirondel, Karen found these two Parasitic Anemones Calliactis parasitica.
And Nick showed me this incredible sea weed there too. It's Codium bursar and is quite scarce. It feels like a sponge and well deserves the colloquial name of French Beret.
Man, I can't get enough of this stuff. As you can imagine, I am pretty stoked. A huge thanks to Nick for all his help, time and knowledge. We were lucky with the weather but we saw no one else out recording in the rock pools. I am surprised that so few people are recording marine wildlife on Jersey. It's really important to record and submit records, so this is a plea for anyone reading this on the island or travelling there for a break, to do so. It's changing all the time too through climate change and accidental introductions and documenting these changes is really important stuff.
Furthermore, you can support the study of natural history on Jersey by joining the Societe Jersiaise here.
OK, I need a breather after all that. But I leave you with this collage that says it all really. Each of these was a lifer from this trip. I think I added about 55 species!
I just had a quick break on the Isle of Wight before my field season started and it's amazing how much things have changed for me in just two short years. For a start, I planned the entire trip to coincide with the big low spring tides. I could not pull myself away from the coast. I barely did any terrestrial recording and my hands were barely out of the water. Two years ago though, my back was so bad, I could not have coped with turning that many rocks day-after-day, or netted that much sea weed. That's all in the past now.
I have felt my attention being pulled away from the land to the sea over the course of the last year, writing the book played a part in this but the main culprit is the unrelenting lure of the nudibranchs! On this trip I found two more species for my list, bringing me up to 14 species for the British Isles. We spent a lot of time with Mark Telfer and family in the rock pools, and probably spent more time at Bembridge Ledges than anywhere else. I absolutely loved that site, so many turnable rocks! First up was Palio nothus, a a really small green nudibranch that I only found by sweeping Wireweed and then sorting through the contents in a tray. Close-focus binoculars really help here as these things are tiny.
You really can see how small this is next to a Pheasant Shell above.
The other cracker was Amphorina farrani which I saw at Bembridge and Freshwater Bay, again by sweeping Wireweed and sorting through the material.
At Freshwater Bay, using the same method, I also found St. John's Jellyfish Calvadosia cruxmelitensis! This is only the second time I have seen a stalked jellyfish that I have got to species.
There's always so much going on in rock pools that I just don't have a clue about, I dismissed this thing as a barnacle scar but Mark looked at it under the hand lens and it's clearly alive. I needed some help on this one from the Porcupine Marine Natural History Society, as I would never have realised this was actually a bryozoan! Plagioecia patina.
And I figured this might have been some kind of a coral, but I was really surprised to find out that this is a young Deadman's Fingers Alcyonium digitatum! Look what this becomes (the second photo is from over a decade ago during a SxIFCA fish survey).
And I found this on the first night. A stoloniferan, a type of cnidarian. Amazingly just as I found this the marine biologist Roger Herbert appeared out of nowhere and helped me confirm this as Sarcodityon catenatum.
On the way back to the shore, we found a rock pool that was full of Aeolidiella alderi, there was five under one rock! This is the 3rd nudibranch of the trip.
And in the same rockpool was an adult Aeolidia philomenae. This was huge! Four or five times bigger than all the other ones I have seen. The fourth nudi of the trip.
Here is Bembridge Ledges itself at dawn...
Then for something really exciting; an entirely new habitat for me. Eel-grass or see-grass beds! We went to Seaview and met up with local expert Theo Vickers. I found a couple of new fish for me, Painted Goby and this Straight-nosed Pipefish, putting me at top fish lister on the PSL site! This green pipefish is a real eel-grass specialist. It's about 11 years since I was briefly joint top fish lister last — PSL is all about the long game.
Also there were these Peacock Fanworms Sabella pavonina, another lifer! Really common there.
And a few really large Hairy Hermit Crabs Pagurus cuanensis.
This absolute unit of a Sea Hare!
Loads of these King Scallops.
And the fifth nudibranch of the week, Acanthodoris pilosa. Found floating upside down in the incoming tide.
Look at this incredibly strange habitat! I absolutely loved it there.
And just because I can, here is some Tim Buckley.
Don't panic though, although I am about to buy a wetsuit and get into snorkelling, I have not forsaken dry land and grown gills just yet. Just yesterday, I found a super rare spider at Graffham Common and a beetle new to Sussex but that is a story for another day...
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