Chorda filum, Ulva lactuca. Site: Marlfield Bay, Strangford Lough
 Chorda filum, Ulva lactuca. Event number: 19830811/05. Site: Marlfield Bay, Strangford Lough. 1983-08-11. Photograph © Bernard Picton. (1/9) 
 Bernard Picton (2026). Photograph of Chorda filum, Ulva lactuca. Site: Marlfield Bay, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2942.jpg. Accessed on 2026-11-04