Potamogeton berchtoldii

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This species has been recorded at locations shown on this map.

See below for details of individual records.



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Red dots on the maps indicate individual records with an accuracy of 1 km or better. Black squares are centred in those 10 km squares of the national grid in which there is at least one record at 10 km accuracy.

Date Gridref Site Quantity Recorder Comment
1930 NR49 Colonsay (north) 0 Unknown (Atlas record)
1930 NR39 Colonsay (mid) 0 Unknown (Atlas record)
1940 NR4895 Mid Loch Fada, Colonsay 0 Harrison, J.W Recorded as a considerable portion of the masses of weed washing up from the deepest parts of the loch.
1970 NR34 Oa (east): Risabus to Laphroaig 0 Unknown (Atlas record)
1970 NR3995 East Loch Fada, Colonsay 0 Clarke & Clarke Lochs. Locally common.
1970 NR35 Islay (central east): Glenegedale to Bowmore 0 Unknown (Atlas record)
1987 NR56 South-east Jura: Craighouse 0 Unknown (Atlas record)
1987 NR27 Rhinns (north): Sanaig to Ardnave 0 Unknown (Atlas record)
1987 NR46 Islay (north-east): McArthur's Head to Caol Ila 0 Unknown (Atlas record)
1987 NR26 Rhinns (central): Gorm to Gruinart 0 Unknown (Atlas record)
1987 NR57 Jura (central south): Ardfernal to Lagg 0 Unknown (Atlas record)
1987 NR44 Islay (south-east): Lagavulin to Kildalton 0 Unknown (Atlas record)
1987 NR46 Islay E or Jura SW (=NR46) 0 Unknown (Atlas record)
1987 NR36 Islay (central north): Bridgend to Ballygrant 0 Unknown (Atlas record)
1987 NR58 Jura (central west): Tarbert to Rainberg Mor 0 Unknown (Atlas record)
1987 NR39 Colonsay (mid) 0 Unknown (Atlas record)
29/08/1961 NR6396 Bagh Gleann Speireig, Jura 0 McClintock, D New record for Jura. In many pools by the shore to the N.
29/08/1961 NR6488 Fishing Loch, Ardlussa 0 McClintock, D New record for Jura.
29/08/1961 NR89 Aoineadh nan Each, Jura 0 McClintock, D New record for Jura.
26/06/1985 NR3766 Gleann Mhartuin 0 Stewart, N. includes part of 3765; from road 372656 along Gleann Mhartuin to S end of L.Finlaggan 379669; back to N of Gleann looking at some rocky areas
01/08/1986 NR3350 Loch Eighinn 0 Chamberlain, D.F., et al.
01/08/1986 NR4066 Loch nan Cadhan 0 Chamberlain, D.F., et al.