Afon Tywi/ River Tywi

Site details

UK map showing location of Afon Tywi/ River Tywi Special Area of Conservation/Site of Community Importance.
Location of Afon Tywi/ River Tywi SAC/SCI/cSAC
 

Note:

When undertaking an appropriate assessment of impacts at a site, all features of European importance (both primary and non-primary) need to be considered.

Annex I habitats that are a primary reason for selection of this site

Not applicable

Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site

Not applicable.

Annex II species that are a primary reason for selection of this site

1103 Twaite shad  Alosa fallax
A large spawning population of twaite shad Alosa fallax occurs in the Tywi, south Wales, and is considered to be self-sustaining. Spawning sites occur throughout the lower reaches of the river between Carmarthen and Llangadog, with most spawning occurring downstream of Llandeilo. Water quality and quantity are considered adequate to maintain this internationally vulnerable species, and there are no impassable obstructions along the migration route, though one weir at Manorafon may be an obstacle during low flow conditions. The presence of Llyn Brianne reservoir at the headwaters provides the potential to manipulate river flows to aid shad migration.
1355 Otter  Lutra lutra
The Afon Tywi is one of the best rivers in Wales for otters Lutra lutra. There are abundant signs of otters and they are regularly seen on the river. The water quality is generally good and there is an ample supply of food. There are suitable lying-up areas along the river bank, but there few known breeding sites on the main river, although cubs have been seen.

Annex II species present as a qualifying feature, but not a primary reason for site selection

1095 Sea lamprey  Petromyzon marinus
1096 Brook lamprey  Lampetra planeri
1099 River lamprey  Lampetra fluviatilis
1102 Allis shad  Alosa alosa
1163 Bullhead  Cottus gobio

Many designated sites are on private land: the listing of a site in these pages does not imply any right of public access.


 
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