Overview

Comprehensive Description

Description

 A small and distinctive 'louse-like' isopod. The body is flattened with an oval outline. It has large eyes, positioned laterally and a long second pair of antennae. It may be pale grey to brown in colour, with black spots covering all surfaces of the body.British coastal isopods have been described by Naylor (1972, 1990). A second intertidal species of Eurydice, Eurydice affinis Hansen, is also found on British shores. It is distinguished from Eurydice pulchra by an overall paler appearance, with black spots only on its dorsal surface. In Britain it has a more restricted distribution than Eurydice pulchra, from south-west England into North Wales, where it occurs amongst populations of Eurydice pulchra.
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Ecology

Habitat

estuarine to intertidal
  • Schotte, M., B.F. Kensley, and S. Shilling. (1995 onwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA.
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Source: World Register of Marine Species

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Depth range based on 688 specimens in 1 taxon.
Water temperature and chemistry ranges based on 43 samples.

Environmental ranges
  Depth range (m): -1.05 - 335
  Temperature range (°C): 6.812 - 16.565
  Nitrate (umol/L): 1.061 - 12.863
  Salinity (PPS): 34.564 - 39.053
  Oxygen (ml/l): 5.332 - 6.297
  Phosphate (umol/l): 0.136 - 0.830
  Silicate (umol/l): 1.801 - 5.755

Graphical representation

Depth range (m): -1.05 - 335

Temperature range (°C): 6.812 - 16.565

Nitrate (umol/L): 1.061 - 12.863

Salinity (PPS): 34.564 - 39.053

Oxygen (ml/l): 5.332 - 6.297

Phosphate (umol/l): 0.136 - 0.830

Silicate (umol/l): 1.801 - 5.755
 
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 Found in the intertidal zone, on fine to medium grained sandy shores. Eurydice pulchra occupies a middle shore zone, but its distribution shifts up shore on spring tides and down shore on neap tides.
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Associations

Known predators

Eurydice pulchra is prey of:
Platichthys flesus

Based on studies in:
Scotland (Estuarine)

This list may not be complete but is based on published studies.
  • Hall SJ, Raffaelli D (1991) Food-web patterns: lessons from a species-rich web. J Anim Ecol 60:823–842
  • Huxham M, Beany S, Raffaelli D (1996) Do parasites reduce the chances of triangulation in a real food web? Oikos 76:284–300
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Source: SPIRE

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Known prey organisms

Eurydice pulchra preys on:
POM

Based on studies in:
Scotland (Estuarine)

This list may not be complete but is based on published studies.
  • Hall SJ, Raffaelli D (1991) Food-web patterns: lessons from a species-rich web. J Anim Ecol 60:823–842
  • Huxham M, Beany S, Raffaelli D (1996) Do parasites reduce the chances of triangulation in a real food web? Oikos 76:284–300
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© SPIRE project

Source: SPIRE

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Wikipedia

Eurydice pulchra

Eurydice pulchra, the speckled sea louse, is a species of isopod crustacean found in the northeast Atlantic Ocean. Its range extends from Norway to the Atlantic coast of Morocco, but not into the Mediterranean Sea.[2] It lives in the intertidal zone on sandy shores. It has large eyes and long antennae, is grey to brown in colour, and has black spots on all its body surfaces.[3] Males grow up to 8 millimetres (0.31 in), while females reach 6.5 millimetres (0.26 in).[4]

References

  1. ^ "Eurydice pulchra". Integrated Taxonomic Information System. 
  2. ^ a b M. J. de Kluijver & S. S. Ingalsuo. "Eurydice pulchra". Macrobenthos of the North Sea: Crustacea. Universiteit van Amsterdam. Retrieved 2009-02-19. 
  3. ^ G. C. Budd (2007). "Eurydice pulchra, speckled sea louse". Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme. Marine Biological Association of the United Kingdom. 
  4. ^ P. J. Hayward & John Stanley Ryland (1995). Handbook of the Marine Fauna of North-west Europe. Oxford University Press. p. 800. ISBN 0-19-854055-8. 
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