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Overview

Brief Summary

Variegated scallops are animals of warmer waters, which are only found on Dutch beaches as fossils. These fossils date back to the Eemian, when the Netherlands had a sub-tropical climate. They are often gray-blue in color, but this is a discoloration. Live variegated scallops are namely very colorful, so that you never miss them on the beach, no matter how small they are. Young specimen are occasionally found in the Netherlands, on drifting objects. These objects usually come from southern waters or England.
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Comprehensive Description

Description

 Chlamys varia is known commonly as the variegated scallop. This bivalve mollusc is very variable in colour and ranges from white, pink, red, orange, yellow, purple with all shades in between, often in irregular patterns. Both shell valves are convex, oval in outline, except for the protruding ears, and usually up to 6 cm long. There are 25-35 prominent ribs on the valves, each with spatulate spines. These are especially well developed near the margin. Growth stages are sometimes clear. The shell is solid, inequilateral and inequivalve. The anterior ears are 2-3 times longer than the posterior. A prominent byssal notch is present in the right anterior ear, with fine teeth on the lower border.Chlamys varia matures as a male, changing sex several times during its life (Hayward et al., 1996).
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Ecology

Habitat

Depth range based on 134 specimens in 2 taxa.
Water temperature and chemistry ranges based on 30 samples.

Environmental ranges
  Depth range (m): 0 - 2081
  Temperature range (°C): 3.527 - 19.203
  Nitrate (umol/L): 0.211 - 17.853
  Salinity (PPS): 33.813 - 38.444
  Oxygen (ml/l): 5.265 - 6.346
  Phosphate (umol/l): 0.091 - 1.222
  Silicate (umol/l): 1.247 - 16.455

Graphical representation

Depth range (m): 0 - 2081

Temperature range (°C): 3.527 - 19.203

Nitrate (umol/L): 0.211 - 17.853

Salinity (PPS): 33.813 - 38.444

Oxygen (ml/l): 5.265 - 6.346

Phosphate (umol/l): 0.091 - 1.222

Silicate (umol/l): 1.247 - 16.455
 
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Depth range based on 13 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 1 - 73
  Temperature range (°C): 15.407 - 19.203
  Nitrate (umol/L): 0.729 - 4.749
  Salinity (PPS): 36.611 - 37.726
  Oxygen (ml/l): 5.100 - 5.391
  Phosphate (umol/l): 0.112 - 0.265
  Silicate (umol/l): 2.723 - 4.348

Graphical representation

Depth range (m): 1 - 73

Temperature range (°C): 15.407 - 19.203

Nitrate (umol/L): 0.729 - 4.749

Salinity (PPS): 36.611 - 37.726

Oxygen (ml/l): 5.100 - 5.391

Phosphate (umol/l): 0.112 - 0.265

Silicate (umol/l): 2.723 - 4.348
 
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 Chlamys varia lives very low on the shore and sublittorally to about 100 m, either free-living or attached by a byssus. It is usually found on rocky substrata, often in algal holdfasts.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Mimachlamys varia

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


No available public DNA sequences.

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: Mimachlamys varia

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

Chlamys varia

Chlamys varia, common name the variegated scallop, is a species of small scallop, a marine bivalve mollusk in the family Pectinidae, the scallops.

Distribution[edit]

This species of scallop lives in the North Sea, the English Channel, the Atlantic Ocean, and the Red Sea.

Habitat[edit]

Chlamys varia is a shallow-living species, living up to about 100m in depth along coastal rocky areas.

Shell description[edit]

The shell of Chlamys varia ranges in color. It can be white, pink, red, orange, yellow, or purple. Both valves are symmetrical except for the ears on either side of the umbos. The shell does not usually exceed 6 cm in length.

Gallery[edit]

References[edit]

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