Overview

Comprehensive Description

Description

 Botrylloides leachi is a colonial sea squirt forming flat, gelatinous sheets. The colonies can vary greatly in colour and can be grey, orange, yellow or red brown. The zooids are arranged in 2 parallel chains. Individual zooids are twice as long as wide and are between 1.5 - 3 mm longThe linear arrangement of zooids in Botrylloides leachi distinguishes it from the star like arrangement of zooids in Botryllus schlosseri. Botrylloides leachi is the preferred food of cowries, Trivia arctica and Trivia monacha.
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Source: Marine Life Information Network

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Description

A colonial ascidian forming compact sheets. The zooids are arranged in meandering lines separated by excurrent channels which lead to a few common exhalant openings very like the oscula of sponges. Common colour forms are bright orange, pink or bright yellow, but patterned forms also occur. The exhalant openings collapse and disappear in specimens removed from the water. 4mm thick x 70mm wide sheets. Separated from Botryllus schlosseri by the meandering, linear arrangement of zooids and few exhalant openings. See also Aplidium nordmanni and Sidnyum elegans.
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© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

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Distribution

Widespread all round the British Isles.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Ecology

Habitat

Depth range based on 25 specimens in 1 taxon.
Water temperature and chemistry ranges based on 25 samples.

Environmental ranges
  Depth range (m): 5.5 - 7
  Temperature range (°C): 16.269 - 16.269
  Nitrate (umol/L): 1.692 - 1.692
  Salinity (PPS): 37.969 - 37.969
  Oxygen (ml/l): 5.382 - 5.382
  Phosphate (umol/l): 0.229 - 0.229
  Silicate (umol/l): 1.778 - 1.778

Graphical representation

Depth range (m): 5.5 - 7
 
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Depth range based on 173 specimens in 1 taxon.
Water temperature and chemistry ranges based on 18 samples.

Environmental ranges
  Depth range (m): 0 - 96
  Temperature range (°C): 9.238 - 27.198
  Nitrate (umol/L): 1.170 - 7.362
  Salinity (PPS): 34.215 - 35.363
  Oxygen (ml/l): 4.418 - 6.665
  Phosphate (umol/l): 0.124 - 0.682
  Silicate (umol/l): 0.993 - 5.963

Graphical representation

Depth range (m): 0 - 96

Temperature range (°C): 9.238 - 27.198

Nitrate (umol/L): 1.170 - 7.362

Salinity (PPS): 34.215 - 35.363

Oxygen (ml/l): 4.418 - 6.665

Phosphate (umol/l): 0.124 - 0.682

Silicate (umol/l): 0.993 - 5.963
 
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 Botrylloides leachi encrusts stones and shells and is common on large brown algae. It is found from the lower shore down to the shallow sublittoral.
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A common ascidian, occurring on seaweeds on the lower shore and in shallow water, and on rock surfaces exposed to water movement.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Associations

Animal / predator
adult of Erato voluta is predator of Botrylloides leachi

Animal / rests in
egg capsule of Trivia monacha rests inside nibbled hole common test of Botrylloides leachi

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Botryllus tyreus

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.

GTTGTAGGAGAT---AGGCAAATTTATAATGTTATCGTTACAGCTCATGCTTTTGTTATAATTTTTTTTTTTGTTATACCAATAATGATTAGAGGTTTTAGGAATTGGCTTCTTCCTTTGATAATTAGAAGTCCAGATATAGCATTTCCTCGATTAAATAATATAAGTTTTTGGTTGTTGCCTCCCGCTTTGTTTTTATTGTTTATTAGTTCAATTGTGGAGTCTAGGGTAAGAACTAGGTGAACTGTTTATCCTCCTCTTTCTGCTAACCTTGCTCATTCAGGGGCTTCGGTGGATTGTGCTATTTTTTCTTTACATTTGGCAAGGGTTTCCAGTATTTTAAGGTCTTTAAATTTTATAACGACTTTATTTAATATGAAGACGAAAAGGTGAAATATGTTCTCTATGTCTTTATTTTGTTGAACTGTGTTAGTTACTACTATCTTGTTGTTACTTTCTTTACCAGTTCTTGCGGCAGCTATTACTATGTTACTTTTTGATCGTAATTTTAATACTTCTTTTTTT
-- 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: Botryllus tyreus

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

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Barcode data: Botrylloides leachi

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.

AGTGTTTTTATTCGTTTAGAGTTGTCTCAAATTAGGCAAGTTGTTGGGGAT---GGGCAGCTCTATAATGTTATTGTAACTGCTCATGCTTTTGTAATAATTTTTTTCTTTGTTATACCTATGATGATTAGGGGGTTTGGTAACTGATTGTTACCTCTTATA---GTGGGGAGTCCAGATATAGCTTTTCCACGTTTAAATAATATGAGTTTTTGGTTATTGCCTCCTGCACTATTTTTTCTTTTCATTAGTTCTATAATTGAAAGTGGGGTGGGAACGGGTTGGACAGTTTATCCCCCATTGTCAAGAAATTTAGCTCATTCTGGGGCTGCATTAGAT---TGTGCTATTTTTTCACTTCATTTGGCTAGGGTTTCTAGTATTTTAAGGTCTTTAAATTTTATAACTACTTTGTTTAATATAAAAGTTAAGAGGTGAGGGATGTTCTCCATATCTCTGTTTTGTTGAACTGTATTAGTTACTACTATTTTGTTATTATTATCTTTACCTGTTTTAGCTGCA---GCTATTACAATATTACTTTTCGATCGAAATTTTAATACTTCTTTTTTT
-- end --

Download FASTA File
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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Botrylloides leachi

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

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Wikipedia

Botrylloides leachi

Botrylloides leachi is a colonial tunicate of the genus Botrylloides. Its unique methods of propagation and regeneration make it an ideal model organism for use in biological study of development, immunology, stem cells, and regeneration.

References

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