Overview

Distribution

Porella concinna is common off all British coasts. It ranges from the western Mediterranean to the Faroe Isles and western Norway. It distribution in Arctic waters needs to be re-examined as boreal and Arctic species of Porella are poorly known.

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© Sally Rouse

Source: Bryozoa of the British Isles

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Physical Description

Morphology

Porella concinna is an encrusting bryozoan that forms extensive spreading sheets, composed of a single layer of autozooids. Colonies are reddish in colour. Autozooids are oval to hexagonal, or with an irregular outline. They are 0.4-0.5 by 0.25-0.4 mm.

Creative Commons Attribution 3.0 (CC BY 3.0)

© Sally Rouse

Source: Bryozoa of the British Isles

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Ecology

Habitat

The species is able to colonise stones, shells and other organic carbonates in offshore habitats.

Creative Commons Attribution 3.0 (CC BY 3.0)

© Sally Rouse

Source: Bryozoa of the British Isles

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Depth range based on 4 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 52 - 79

Graphical representation

Depth range (m): 52 - 79
 
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