Biodiversity & Conservation

Potamogeton pectinatus community



Image Martin Isaeus - A bed of fennel pondweed Potamogeton pectinatus.
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Distribution map

SS.IMU.Ang.A12 recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

  • EC_Habitats
  • UK_BAP

Species indicative of sensitivity

To assess the sensitivity of the biotope, the sensitivity of component species is reviewed. Those species that are considered to be particularly indicative of the sensitivity of the biotope, and for which research has been undertaken in detail are shown below (see selection criteria). The biology of other component species of the biotope is also taken into account wherever information is known to the researcher.

Species found especially in this biotope

  • Potamogeton pectinatus
  • Cladophora flexuosa
  • Cladophora liniformis
  • Potamopyrgus jenkinsi
  • Gasterosteus aculeatus
  • Lamprothamnium papulosum

Rare of scarce species associated with this biotope

Community Importance Species name Common Name
Key structural Potamogeton pectinatus Fennel pondweed
Important functional Hydrobia ulvae Laver spire shell
Important functional Gammarus insensibilis Lagoon sand shrimp
Important functional Gammarus salinus A gammarid shrimp
Important other Neomysis integer Opossum shrimp
Important other Cordylophora caspia A hydroid
Important other Conopeum reticulum A bryozoan
Important other Pomatoschistus minutus Sand goby



Additional information


This review can be cited as follows:

Tyler-Walters, H. 2002. Potamogeton pectinatus community. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 25/11/2015]. Available from: <>