Freshwater Shrimp (Gammarus spp), Serpentine Bioblitz 31/07/21 (Jon Mortin)

Crustaceans

About crustaceans

Under development. Contributions from BFC members welcome. Watch this space.

Crustaceans form a large, diverse arthropod taxon which includes such animals as crabs, lobsters, crayfish, shrimps, prawns, krill, woodlice, and barnacles.

Signal Crayfish (Pacifastacus leniusculus), Serpentine Wye (Steve Orridge)

Crustaceans in the High Peak

Takes you to the up-to-date list and photo galleries of all crustacean observations within the High Peak area, as recorded on iNaturalist

Takes you to the up-to-date list and photo galleries of all crustacean observations within the ‘Buxton polygon’ area, as recorded on iNaturalist and collected by the Buxton Biodiversity Recording Group project

You can find species from 3 orders of crustaceans in the High Peak: woodlice, crayfish and freshwater shrimps.

Woodlice are isopods that have evolved to colonise land and are mainly found in terrestrial habitats rather then aquatic environments, although some species inhabit both. The species that we are familiar with are lan-dweling and often associated with dead wood, hence the name. Woodlice have segmented shell-like exteriors and, as isopods, have one pair of limbs per body segment, and seven pairs of jointed legs. They can roll up into a ball and can be confused with pill millipedes, which have two pairs of legs per segment.

Crayfish are freshwater crustaceans resembling small lobsters (to which they are related). There are two species of crayfish that you can find in the High Peak, the native species and an introduced invasive species, the Signal Crayfish (originally native to western North America). This is gradually supplanting native species of crayfish throughout Europe, mainly due to its resistance to infections such as crayfish plague.

Freshwater shrimptext to be developed.

A short video by Steve Orridge of a signal crayfish in the Serpentine Wye.

Identifying crustaceans

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