Another look at those dead limpets 👀🤔 20240707

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21 күн бұрын

Another look at those dead limpets 👀🤔 20240707 I have no idea why these limpets appear to have been damaged or suffered from some sort of predation or disease. I have brought this to the attention of the Harbour Master.
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I found this information about them.
Common limpet (Patella vulgata) www.marlin.ac.uk/species/deta...
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@GrandadIsAnOldMan 11 күн бұрын

Thank you for your email regarding Hope Cove. The information you provided has been logged onto our system. We combine this incident information with other data. This helps us to assess how serious the incident could be. Some of the factors that determine how we manage the incident are: • scale of the harm to the environment or people • duration • number of times it has occurred If you know the source of the pollution then you may want to inform those responsible. They can then take action to stop it. Regulated sites should have procedures for dealing with these reports, for example a water company. Responding to environmental incidents For environmental incidents the Environment Agency: • need to prioritise their activities on incidents that cause serious and significant risk • are unable to respond to every environmental incident reported to them • may in some cases, after assessing the risk, decide that no further action will be taken • will use the information provided to build a picture of environmental threats - to enable targeted compliance, regulation, and enforcement • will continue to regulate activities with an environmental permit so they can prevent damage to the environment • will not provide feedback to individual reports of environmental incidents If the incident you have reported to us worsens or continues for several days, call the Environment Agency again on 0800 80 70 60.

@ForTheWhim 20 күн бұрын

Really weird Grandad, keep us posted if you find out what's going on 👍

@GrandadIsAnOldMan 20 күн бұрын

What is really concerning me is trying to find who I should report my concerns to. The government sites have a reporting system for things like stranding's for whales, and dead seals, and oil spills, but nothing for molluscs. I have written to the Devon Wildlife Trust asking for advice.

@mrwoodandmrtin 20 күн бұрын

It's difficult to tell without being there in person. but harking back to my seaside days in senior biology expeditions, could they be the lower part of a twin shell creature similar to a clam? So either seabirds or pollution causing the top part to be removed.? In other words, are they another shellfish that lives amongst the limpets...? Because the limpets I've seen have no lower shell.

@GrandadIsAnOldMan 20 күн бұрын

From about 09:30 I show you some limpets where the top of the shell seems to be eaten away and you can see the translucent underside of the shell is exposed. It is almost like something, maybe a chemical, is eating away at the shell. It then seems that the shell softens and implodes leaving just the outer ring of the shell. There is a stream running into the sea on that side of the bay, so it could be a chemical runoff from the farms. There is also more green weed in the bay than normal.

@mrwoodandmrtin 19 күн бұрын

How can there be shell deposits on the rock if the limpet only has a top shell? It all looks very similar to the rocks we have here, where the clams have died and just left the lower part of their shells still embedded into the rocks. Limpets would leave a hole or a ring, but not a shell basin. Unless the limpets have two shells there. My suspicion is that they are oysters. Or antigravity victims... one of those two.

@GrandadIsAnOldMan 19 күн бұрын

@mrwoodandmrtin My current theory is that if the shell has been softened, the limpet actually causes the shell to collapse inwards as it tries to clamp itself to the rocks. That is what I deduce by observing the limpets that have the outer layer of the top of their shell missing and the white inner layer exposed. As I have mentioned in the videos, on close inspection, they look as if they have been turned inside out. Feel free to invent a new species of mollusc that has magically appeared on these rocks and exclusively died whilst the existing limpet population has conveniently moved to one side. I am sad enough to have studied these limpets for many years and have not observed this happening before. If you check the video description, you will find my playlist for limpets. I also mentioned in the video that some of the whelks appear to be affected with white patches, too.

@mrwoodandmrtin 19 күн бұрын

@@GrandadIsAnOldMan It's possible. I've seen some pretty strange things when it comes to chemical reactions. Although William of Ockham would have something to say about it.

@LarryBees 19 күн бұрын

alien foods??

@GrandadIsAnOldMan 19 күн бұрын

I have a nasty feeling it might be a chemical problem.

@mikeflight9 19 күн бұрын

That definitely does not look right. I mentioned seeing white spots on rocks but the close-up you did here does not look like anything I have seen before. There is something wrong here and it might be a good idea to report it to whatever authority deals with conservation etc. Several things you mentioned about the stream flowing into the sea at the other side of the beach, which has many more dead limpets, make me wonder if it is a chemical spill. I don't think that is caused by a fungus or other biological problem. Whatever is causing it is definitely not normal. I imagine radiation could do this but that is doubtful unless Fukushima water has managed to reach our shores. Take one of those little cameras and chuck it out. Better still, get out there with the swim gear. 🤣😂 Joking aside, it is really odd for the shell to rot away like that. Plus the limpet may still have been alive after shell collapse because they never fell off the rocks. In other words, "I don't have a clue". Very glad you showed this with close-ups. 🤔👌👍👍

@GrandadIsAnOldMan 19 күн бұрын

@mikeflight9 I have written to Devon Wildlife Trust asking for advice. I have had an automated response, so we will see if anyone takes an interest.