1) Particle size 4 -16 mm. 2) Clean stone or shell gravel including dead maerl (Hiscock, 1996) 3) >80% gravel (Long, 2006).
Long D. (2006). BGS detailed explanation of seabed sediment modified Folk classification. http://www.emodnet-seabedhabitats.eu/PDF/BGS%20detailed%20explanation%20of%20seabed%20sediment%20modified%20folk%20classification.pdf
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.]
[[Category:Mstcollections||Marine species traits]]
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[[:Traits:GravelShingle]] [[Collection::Traits:Distribution Descriptors]]
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