Overview

Comprehensive Description

As with other hippolytid shrimp, this species has no exopodites on its pereopods, the carpus of pereopod 2 is divided into 3-7 subunits (articles, a "multiarticulated carpus"), and a rostrum is present but if it has dorsal spines they are not movable. This species has 7 subunits (articles) in the carpus of pereopod 2, has 1 supraorbital spine,(photo), maxilliped 3 has no exopodite, the rostrum is longer than the eye and reaches just beyond the middle of the antennal scale, and the pleura of abdominal segments 2 and 3 end in sharp points. The carapace has 4 large, forward-pointing spines on the mid-dorsal line. Usually translucent with brown or reddish-brown bands. Total length to 10.7 cm, usually less than 4 cm.
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Source: Invertebrates of the Salish Sea

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Biology

A common benthic shrimp of the circum-Arctic and extreme northern Pacific and Atlantic oceans
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Highly variable, mottled with brownish red to dull brownish green; may be camouflaged in life; Note the very large dorsal teeth on the carapace, the single large supraorbital tooth and the sharp ventral margins of the abdominal pleura; Considerable within-species polymorphism has been reported in the number of spines or teeth on abdominal somites, meri of posterior pereopods and telson spines; also relative length of antennal scale compared to the telson.
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Distribution

Western Atlantic: Hudson Bay to Greenland and south to Rhode Island; Arctic Canada and Alaska; Cobscook Bay
  • North-West Atlantic Ocean species (NWARMS)
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Source: World Register of Marine Species

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Geographical Range: Circumboreal. Bering Sea to Puget Sound in our area.

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Source: Invertebrates of the Salish Sea

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Physical Description

Look Alikes

How to Distinguish from Similar Species: We often catch this species in the same deep San Juan Channel otter trawls as Paracrangon echinata. The two species look superficially similar but Paracrangon has only 4 walking legs, is not as strongly red, has a longer rostrum, and typically assumes a defensive cataleptic posture when threatened. Several other Lebbeus species have rounded ends on the pleura of abdominal segments 2 and 3.
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Source: Invertebrates of the Salish Sea

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Ecology

Habitat

intertidal, bathyal, infralittoral and circalittoral of the Gulf and estuary
  • North-West Atlantic Ocean species (NWARMS)
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Source: World Register of Marine Species

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Depth range based on 417 specimens in 1 taxon.
Water temperature and chemistry ranges based on 161 samples.

Environmental ranges
  Depth range (m): 6 - 410.5
  Temperature range (°C): -0.962 - 11.318
  Nitrate (umol/L): 1.944 - 27.924
  Salinity (PPS): 31.857 - 35.149
  Oxygen (ml/l): 2.801 - 7.792
  Phosphate (umol/l): 0.488 - 2.300
  Silicate (umol/l): 2.801 - 43.395

Graphical representation

Depth range (m): 6 - 410.5

Temperature range (°C): -0.962 - 11.318

Nitrate (umol/L): 1.944 - 27.924

Salinity (PPS): 31.857 - 35.149

Oxygen (ml/l): 2.801 - 7.792

Phosphate (umol/l): 0.488 - 2.300

Silicate (umol/l): 2.801 - 43.395
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth Range: Very low intertidal (juveniles) to 518 m

Habitat: Soft bottoms with sand, gravel, and shells

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Source: Invertebrates of the Salish Sea

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Mud, shells, sand or gravel; Llow intertidal zone to 518 m
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Trophic Strategy

Scavenger, predator on smaller annelids, crustaceans and mollusks; Reported to be eaten by Atlantic cod and bearded seal
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Life History and Behavior

Life Cycle

Egg-bearring females noted in August, November-February; suggesting a biennial spawner; At least two zoeal stages and megalopa stage reported; More Biology and Ecology; Can be parasitized by isopod, Hemiarthus abdominalis in Pacific
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Lebbeus groenlandicus

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


There are 4 barcode sequences available from BOLD and GenBank.

Below is a 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 and other sequences.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNCCGCCCTAAGACTTCTAATCCGAGCAGAATTAGGACAACCTGGAAGTCTCATTGGGAACGACCAAATTTATAATGTTATTGTAACAGCACATGCCTTCGTTATAATTTTCTTTATGGTTATACCCATTATAATCGGAGGTTTTGGTAATTGGTTAGTTCCCCTTATATTAGGAGCTCCTGACATGGCCTTCCCCCGTATGAACAACATAAGATTCTGACTTCTTCCACCTTCTTTAACTTTACTTCTGTCAAGGGGGATAGTTGAAAGGGGGGTGGGAACAGGATGAACTGTTTACCCTCCTTTGGCGGCAGGTATTGCCCATGCCGGGGCTTCTGTAGACATGGGGATTTTCTCACTCCACTTGGCCGGAGTTTCTTCTATCTTAGGGGCAGTTAATTTCATAACAACAGTCATTAATATACGATCTACGGGAATAACAATAGATCGCATGCCTTTATTTGTTTGGTCAGTATTCTTAACAGCAATCTTATTGCTTCTCTCACTACCAGTTCTTGCAGGAGCAATTACAATACTCCTTACAGACCGAAATTTAAACACCTCTTTCTTTGACCCTGCTGGAGGAGGGGACCCTATCCTTTACCAACATTTATTT
-- end --

Download FASTA File

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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Lebbeus groenlandicus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 4
Specimens with Barcodes: 25
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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