The Swan Mussel is a large species of freshwater mussel, typically found in lowland lakes, canals, and quiet river backwaters with low current, muddy or silty substrates, and sparse vegetation. A couple of weekends ago I was having a walk around Sand Hutton Gravel Pits, a gin clear gravel pit near us here in York. It can sometimes be a yellow-brown or an olive-brown colour. Here, these aquatic bivalve molluscs burrow into the soft substrate, leaving just their two siphon tips exposed. The swan mussel, Anodonta cygnea, is a large species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. datasets have provided data to the NBN Atlas for this species.. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Anodonta (Anodonta) cygnea (Linnaeus, 1758) A large European freshwater mussel of still or slow-moving water, the larvae of which parasitize fish. They are cold blooded though and need very little to survive. Swan mussels are sold as “an aid to filtration” because they filter feed on planktonic algae (green water) but they produce larvae that are parasitic on fish. Suitable for medium to large ponds and lakes (or 1 mussel per cubic metre of water) as they can grown to 17cm by 9cm in size. Adult Swan mussels I'm sure are not really on the menu but the smaller more fragile juvenile mussels must be on the carps hit list for a tasty snack but the juvenile mussels might not live within the large mussel beds but I don't know due to only ever finding the big fellas. Native to the UK. The Bitterling is a small coldwater fish that lays its eggs inside the swan mussel where they develop into small fry. The Swan Mussel has an oval-shaped shell which is usually a brown colour with lots of darker or lighter brown curved lines. Taxonomic hierarchy Kingdom Swan mussels are a relatively large species of freshwater mussel with shells that feature a pale green and brown colour. They’re also known as swan mussels and are a different type to the endangered freshwater pearl mussel which is still found in scotland and other places (I found a shell in the ardeche-they like clean chalky/limestoney water) Ha! The swan mussel is a very large bivalve mollusc which lives in streams, rivers and along lakeshores where the bottom is of rich mud or silt and relatively free of plant growth. Viviparus viviparus (River snail, sometimes sold as Trapdoor snail). Swan Mussels (Anodonta cygnea) Feeding off pond debris and other small pond organisms, these native large molluscs will help filter debris from your pond and clean the water as they do so. Native to England & Wales but not to Northern Ireland or Scotland. Offering a stunning Swan Mussel (Anodonta cygnea) - approx 4 ... 5 cm. Anodonta cygnea, family Unionidae ‘He put his stick into the gap between the two halves of the complete shell and the swan mussel immediately clamped on to the stick.’ AquaBid.com: Closed Auction # fwsnails1604383143 - Anodonta cygnea (Swan Mussel) - Ended: Mon Nov 2 23:59:03 2020. Like similar clams and mussels we can get here, swan mussels reproduce by creating black specks on the surface of fish kept with them. Depending of the size and maturity of the adult, the larvae may be released in hundreds or hundreds of thousands at a time. There is some contention as to whether these molluscs need moving, and highly aerated water, as they are generally found in streams, and rivers. Approximately sized 10-20cm, they sit at the bottom of the water feeding on particles of decaying vegetation and small live foods. - Flickr - gailhampshire.jpg 1,768 × 1,152; 355 KB The Intellectual observer (1862) (14782335444).jpg 1,898 × 2,754; 815 KB Recorder 3.3 (1998), version 1 Scottish Biodiversity List, version 1 Print version. This is a wildlife heaven, perfect for anglers, dog walkers and bird watchers alike. The shell of this freshwater Swan Mussel (Anodonta cygnea) was found surprisingly at low tide amongst the rockpools on Swanpool Beach, Falmouth on the seaward side of the Swanpool freshwater nature reserve.A small whole drilled into it suggests it was eaten by a Dog Whelk (Nucella lapillus) which are plentiful on the rocks around the pools at low tide. In the Swan Mussel, the scar is joined to the pedal retractor scar by a narrow isthmus, whereas in the Duck Mussel these two scars are completely merged. Swan Mussels can reach an adult size of 15 cm - 6", and can live up to 12 years if kept correctly. Home / Our science / Data / UK Species. The two can also be distinguished by looking at the posterior (pointed end) adductor muscle scar. In an aquarium, move out fish before they become heavily coated. The image used above is for illustration purposes only. The inside of the shell is pearly white and the soft body inside is a rosy orange colour. ... Swan Mussel. Mine are all alive, however, it did cross my mind that if I want an algae free pond and I use products to aid in this matter, the Swan Mussels will loose out on food. Checklists containing Swan Mussel. They are sort of in a middle ground between hitchhikers and parasites, normally causing very little harm. Recently I obtained two rather nice swan mussels for my freshwater aquarium.This was another attempt to get my pair of Bitterling to breed. Lack of host fish in rivers is one of the problems leading to the decline in populations. Thanks for looking! Freshwater pearl mussels have a fascinating lifecycle, of which part is spent attached to the gills of young salmon and brown trout. Swan Mussels - Buy Online or direct from one of our UK Superstores. Swan mussel cutting groove through mud. Anodonta cygnea (Swan mussel). However, other factors impacting populations include: Sep 15, 2016 Rating: swan mussel pearls by: Jorge Costa Hello Frances, thank you for your prompt reply, sadly you cannot collect shells or pearls from the freshwater mussel in Scotland as it … These … The pits in Sand Hutton date back to the Triassic years, and underneath them is mudstone.It struck me how crystal clear the water was. Shell is buff or light brown in colour. Approx shell length 10cm. I've never heard any negatives regarding keeping Swan Mussels in ponds (UK). The pearl mussel is also a threatened species, and there is some evidence that the swan … This being said, it is not uncommon to find them in lakes, and other still water environments. Five species of mussel live in lowland rivers in Britain, and one, the pearl mussel, in upland waters. Anodonta (Anodonta) cygnea (Linnaeus, 1758) - Swan Mussel Primary navigation. Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species. Lymnaea stagnalis (Great pond snail). Description/identification The Depressed River Mussel is a rare, green or brown river bivalve (meaning two-shells). The Swan Mussel, Anadonta cygnea, is larger and the hinge margin is parallel to the mid-axis. One of the water feeding on particles of decaying vegetation and small live.... Heard any negatives regarding keeping Swan Mussels - Buy Online or direct from one of the problems to. 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