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Examples

  • The brackish water ecosystems grade to freshwater systems when a half-closed bay (flad) between the ridges of tillbecomes a closed lake (gloe), each with its adapted plant community from pondweeds such as Potamogeton spp. and stoneworts Chara spp. to thickets of the reed Phragmites australis.

    Kvarken Archipelago High Coast, Finland and Sweden

  • Dr. A H Ganie, from University of Kashmir discussed the alien invasive and non-invasive species of 'Potamogeton' in Kashmir Himalayan fresh water ecosys ems and presented a comparative appraisal of various species.

    PunjabNewsline News

  • The lake and marshes, especially the dense Potamogeton beds, support huge populations of a few species of marine and brackish water invertebrates.

    Ichkeul National Park, Tunisia

  • The most important objectives were to control the water level and salinity of the lake and to maintain and develop the pondweed Potamogeton, the major food source for wintering and migrating waterfowl.

    Ichkeul National Park, Tunisia

  • Growing submerged in the marsh pools and low salinity open water are narrow-leaved pondweed Potamogeton pectinatus, Zannichellia palustris, Ekebergia spp.,

    Ichkeul National Park, Tunisia

  • Lake sedimentation and the subsequent growth of Potamogeton increased in the late C19th with increased farming and the cutting of the Bizerta ship canal in 1895.

    Ichkeul National Park, Tunisia

  • It altered the food chain by greatly reducing the area of Potamogeton - in 1988/9, from 3,000 to 500 ha.

    Ichkeul National Park, Tunisia

  • Endemic Saharan species found on the massif include the pondweed Potamogeton hoggariensis (E), Silene hoggariensis, Lupinus tassilicus and Senecio hoggariensis.

    Tassili N'Ajjer National Park, Algeria

  • Submerged vegetation includes Ceratophyllum demersum, Myriophyllum spicatum, Potamogeton hoggariensis, Chara and Ekebergia sp.

    Tassili N'Ajjer National Park, Algeria

  • The large Manzala coastal lagoon supports beds of Ceratophyllum demersum, Potamogeton crispus, and P. pectinatus around the southern shore as well as dense phytoplankton.

    Nile Delta flooded savanna

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