From MarineSpecies Introduced Traits Wiki
Large or very large boulders
Large or very large boulders: >512 mm; likely to be stable (Hiscock, 1996).
- [[LargeBoulders|Large or very large boulders]]
- Hiscock, K. (ed.), 1996. Marine Nature Conservation Review: rationale and methods. Peterborough: Joint Nature Conservation Committee. [Coasts and seas of the United Kingdom. MNCR series.]
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