Bristle worm and hermit crab symbiotic relationship

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bristle worm and hermit crab symbiotic relationship

In this exciting excerpt from the third season of Jonathan Bird's Blue World, Jonathan films a. I've been 'attacked' by a Bristleworm in my tank. .. or well-known for a spaghetti worm to "host" or form some kind of symbiotic relationship with a hermit crab?. symbiosis. to practice, you can use the "test" feature, select "multiple choice" and "start with term" The bristle worm removing parasites from the hermit crab and eating the A close relationship of a fungus and an algae that benefits both.

Next an anemone moves in with the promise to protect the crab and worm from enemies. Soon the three characters outgrow the shell and argue leading to them going their separate ways. However, a storm occurs and the worm finds a bigger shell to accommod Sharing a Shell starts with a crab searching for a new home as he has outgrown his current one.

However, a storm occurs and the worm finds a bigger shell to accommodate them all and they soon move back in together. The book explores friendships and relationships, of how the characters can co-operate with each other to make a lovely place to live even though they are not the same species. Sharing a Shell also highlights the importance of each character, as without each other they are lonely and the shell will be dirty, at risk and unable to move around. Children can then expand on this to see what jobs there are within the UK and the World over and how they assist the people who live there.

Sharing a Shell uses rhyme to tell the story, this allows for children to explore the world of rhyme and start to look at how to use it themselves in writing. Also, the child can discover what makes words rhyme including the phonic sounds heard in the word. Sharing a Shell is a brightly and well illustrated book, having a lovely story of friendship which leads children and adults to read it over and over again. I've since determined that it's a type of Eunicid and he has at least one good-size friend I've also spotted.

The live rock was from Tampa Bay Saltwater and I've heard that they are not uncommon finds in their rock. I believe what I witnessed was the worm building a den as sometimes he just picks up rock and "arranges" it around the entrance, but I'm still puzzled as to why he would swallow it. I'm sure it won't be the last unexplained thing I witness in the tank - may as well sit back and enjoy. Thanks again, and have a great day!

Moved a few rocks around tonight and noticed a giant bristle worm pinkish-peach expelling something pink into the water. Then seconds later another And I have some giant worms Should I be plucking these critters out? No need to remove them. This is a good thing usually. Is it common or well-known for a spaghetti worm to "host" or form some kind of symbiotic relationship with a hermit crab? I have a Mexican red-leg hermit using a Cerith snail shell with a small hole bored in it I assume made by the predator which killed the original snail.

There are two long tentacles coming out of the hole that to me look identical to a spaghetti worm. They wriggle about and withdraw just as you'd expect them to.

Have you seen this before? It's actually pretty common for Hermit crabs to form symbioses of various types with a number of different animals. One of the European species, Pagurus bernhardus, has been quite well studied in this regard. It routinely forms a symbiosis with sea anemones several species that it actually moves from old shells to new shells as it grows. Inside the shell there is a Polychaete worm, Nereis fucata.

The crab and the anemone are assumed to benefit one another, the anemone by being moved about and perhaps collecting food from the crab, and the crab gets the benefit of the anemone's sting. As for the worm, there's no particular benefit to the crab, but the worm certainly snatches crumbs of food and lives somewhere relatively secure, defended by both the crab and the anemone. As for worms living inside burrows through the shell, the hermit crab likely doesn't notice or care about these, any more than you do the thousands of mites living in your eyebrows.

There's little to no interaction between the two of them, though perhaps the burrowing worms might benefit from crumbs of food that drift about when the hermit crab feeds. Those worms would be in that shell regardless of whether the shell was occupied by a snail, a hermit crab, or was just sitting about on the substrate.

It's better to think of a symbiosis as a situation where animals make particular efforts to interact with one another, and when doing so, at least one partner benefits.

Relationship between hermit and spaghetti worm Thanks for the info, Neale!! I think it's kinda funny, this crab is hauling around a freeloader!

bristle worm and hermit crab symbiotic relationship

On top of that, there are mites in your eyebrows, amoebas crawling around inside your mouth, yeasts on your skin, and more besides! The only thing unusual about the "freeloader" you're seeing on your Hermit is that it's visible; most aren't.

Do you think he's dead, or is this normal? This is sometimes "normal" If the worm is healthy, it will regrow its crown. I am enormously thankful for the information here, read daily, and want to kick those who are intentionally ungrateful or rude to the staff of volunteers there.

Thank you so much for your site, I have successfully stocked 3 tanks lightly with sick or dying corals from others, and all have regrown beautifully. Tank houses much live rock, Chaeto, a small Tomini tang, algae blenny, and a falco Hawkfish, as well as a 'non aggressive' clean up crew.

I change five to ten gallons with aged water twice a week [RODI], use an Aquaclear for Polyfilter and ChemiPure, as well as a cheap skimmer modified which pulls an enormous amount of disgustingness out of our well fed water. Flow is provided by two Koralia 2s and an intermittent Koralia 3, and the lighting is power compact [ watts].

Types of Symbiosis - PowerPoint PPT Presentation

I do not have a refugium or sump connected to this tank. He has been in the tank for more than eighteen months, and has grown and behaved like your average feather duster in a fabulous environment with plenty of food. However, his morning it was extended out of its tube by three inches. Within an hour or two, he crawled out, and to my surprise, appeared to be cut in half about three inches below the crown.

The two ends of the 'cut' appeared relatively clean, but with one small piece of flesh holding them together.

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So, now I have a feather duster tube, with the lower end of the worm in it, and a free floating and protected, for now top half of a feather duster in my tank.

I am inclined to remove the upper portion, but would hate to do so if it has even a slight chance.

Sharing a Shell by Julia Donaldson

They sometimes do this. Just let it be. I changed 15 gallons anyway, and everyone else in the tank appears to be happy and healthy. I have no idea how this could have happened, and while I have a few tiny hermits, as well as the normal population of bristle worms- I do not see how anything in my tank could have mechanically injured the feather duster.

The worm might have done this to itself. But I couldn't tell you what that irritate might be. While I queried this, I myself have never seen a large feather duster snip itself in two. Any advice or thoughts would be much appreciated! Thanks you so much.

Biology Unit 3: Living Together - Symbiosis and Social Behaviour

Feather duster cut in half? I suspected that I should leave him be, but I was too caught up in freaking out. It might likely be rebuilding its tube as we speak. I was scraping my tank walls and creating quite the amount of wave action. Water started changing into milky colour, very quickly.

Bottom - No sand - shells only and rocks. Fishes were bothered a little by the whole situation; corals and anemones not at all.

bristle worm and hermit crab symbiotic relationship

During the day, when I vacuum tank's bottom, always get a good bunch of them. If that what happened is what I think it is - I'm in trouble: One good thinks - they have to eat what is left on the bottom after snails, crabs and shrimps. After few hours water is still white cloudy.

Relationship Between Hermit Crabs & Sea Anemones | Animals - ddttrh.info

What in the world what that? Night of the Triffids? I wouldn't have recommended anything smaller than a g to start - for the shark alone! Am concerned though, about its well being in a crowded community tank. Sharks, especially just out of the case, are vulnerable and in need of some quiet and care. I managed to film one of them doing this.

By the way, thank you for sharing this experience with us. It helps us all! The entire tank became as cloudy for a bit. Now, my questions are 1 What were they doing? Please see this link regarding nutrient control: It's also not an ideal situation for the inhabitants.

Please read these links for more information on shark keeping and compatibility: It did this for several weeks then sort of settled into the pink color until it shed it's "heads". After it grew a new pair of heads, the color switching began again and is still changing colors now.

It is getting close to full size again so I don't know what's next!

bristle worm and hermit crab symbiotic relationship

We also have video documenting color change in real time. Don't know if we have the only one or they are common but I've never seen anything quite like it. At first I couldn't see anything in his claws but he seemed to be wrestling with something. A moment later two thin strips of vivid electric blue lit up between his outstretched claws and he jumped back like he'd put a pincer in the mains socket.

Eventually I could see he'd caught what looked like a 2. It was too dark to make out properly, and I didn't want to suddenly light the whole tank up, but the worm looked thin and flat, and while the boxer tried to eat it the worm shot lines of really bright electric blue along its body. The glow clearly hurt the shrimp, though he didn't give up, and at this moment the boxer appears to have won and is slowly eating the worm. Now that the glowing has stopped the worm looks very plain and could easily be a bristle worm, but do they glow like that?

I almost wanted to stop the boxer killing it but short of pulling every rock out there was no way I'd separate them, and I also wondered if this worm could be a danger to the fish anyway. I'm a big fan of Wet Web Media and have spent many hours reading through your FAQ's, so when I saw this unexpected and unidentified creature I thought of contacting you first.

Have you any idea what it was?

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I'd love to know your thoughts. I've tried looking for similar things online but turned up no clues at all. Thanks in advance for your time, and thanks for the great site. Electric worm in my reef tank! I feel very privileged to have seen this if it is not commonly observed in captivity. Now I'm trying to find out what the tiny star shaped white things are on my glass, they look sort of like tiny white starfish in shape only but with only 4 stubby 'legs' Any ideas would be very welcome I'll continue my search on that.

It's great to have WWM as a resource to help identify them, and to have your personal replies is just fantastic. Thanks again for your time. I drip-acclimated him like I do everything, then put him in a crevice where the bottom of the tube would be in the substrate. I never once saw him come out of his tube. I didn't actually watch the guy at the LFS bag him, but I left the tube in my tank just to be sure in case he was still in there.

Once the lights went on, it started pulsating and eventually disappeared.

bristle worm and hermit crab symbiotic relationship

The tank is about a month old and everything in it either came out of my gallon tank or I bought as a frag. Is that thing my feather duster?