Zostera marina. Site: N of North Rock, Strangford Lough
 Zostera marina. Event number: 19800625/01. Site: N of North Rock, Strangford Lough. 1980-06-25. Photograph © Ulster Museum. (3/5) 
 Ulster Museum (2026). Photograph of Zostera marina. Site: N of North Rock, Strangford Lough. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_1451.jpg. Accessed on 2026-11-04