Overview

Comprehensive Description

Description

 A dorso-ventrally flattened crustacean with an elongated rounded oblong shaped body. Males range in length from 7 to about 30 mm and females from 9 to 18 mm. Males brown in colour, occasionally with white markings. Females generally darker but with white bands along the sides of the body or alternating white and darker transverse bands. The distinct head bears two dorso-lateral eyes, a pair of short antennules, and a pair of antennae. Most of body is taken up by a thorax composed on seven sections (somites). The body ends in a short abdomen (two somites) and a distinct tail-piece (the pleotelson). The pleotelson in adults is characteristic, with slightly convex sides and a posterior end that is rounded in juveniles but bears two side processes in the adult giving a notched or emarginate appearance.
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©  The Marine Biological Association of the United Kingdom

Source: Marine Life Information Network

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Ecology

Habitat

Depth range based on 15 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 0 - 73.5
  Temperature range (°C): 2.795 - 11.952
  Nitrate (umol/L): 2.878 - 6.257
  Salinity (PPS): 30.162 - 35.226
  Oxygen (ml/l): 5.724 - 7.763
  Phosphate (umol/l): 0.263 - 0.601
  Silicate (umol/l): 2.274 - 9.253

Graphical representation

Depth range (m): 0 - 73.5

Temperature range (°C): 2.795 - 11.952

Nitrate (umol/L): 2.878 - 6.257

Salinity (PPS): 30.162 - 35.226

Oxygen (ml/l): 5.724 - 7.763

Phosphate (umol/l): 0.263 - 0.601

Silicate (umol/l): 2.274 - 9.253
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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 A sublittoral species living on seaweeds but also found on cast-up seaweed in the intertidal.
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Dispersal

Depth range

intertidal - 20
  • 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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© WoRMS for SMEBD

Source: World Register of Marine Species

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Associations

Known predators

Idotea emarginata is prey of:
Platichthys flesus
Maritrema subdolum

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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Known prey organisms

Idotea emarginata 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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Molecular Biology and Genetics

Molecular Biology

Barcode data: Idotea emarginata

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There is 1 barcode sequence available from BOLD and GenBank.

Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen.

Other sequences that do not yet meet barcode criteria may also be available.

GATTTATGAATTCAT---------------------------------------------------------------------------------------------------------------------TTAAAGAGT------------------------TGTACGGCCCATGCTTTTGTAATAATTTTTTTTATGGTAATACCTGTGATGATTGGGGGGTTTGGAAACTGGTTAGTTCCTTTAATATTGGGAGCGCCAGATATAGCTTTTCCACGTATAAATAATATAAGATTTTGATTACTCCCCCCCTCGTTAATACTTCTATTAAGGAGGGGGCTTGTAGAAAGTGGGGTTGGTACAGGTTGAACTGTGTATCCTCCACTTGCCGCAGGTATTGCCCATAGAGGAGCTTCTGTAGATTTAGGGATTTTTTCTTTACATTTAGCTGGTGCTTCCTCCATCTTGGGAGCTGTAAATTTTATTACCACTGTAATTAACATACGCCCAGCGGGAATAAGATTTGATCGTATCCCTCTATTTGTGTGGTCAGTCTTCATCACGGCAATTCTTTTACTTCTA
-- end --

Download FASTA File

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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Idotea emarginata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 4
Species With Barcodes: 1
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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