Action: Use moorings which reduce or avoid contact with the seabed (eco- moorings)
Key messagesRead our guidance on Key messages before continuing
- We found no studies that evaluated the effects of using moorings which reduce or avoid contact with the seabed (eco-moorings) on subtidal benthic invertebrate populations.
‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.
Moorings, permanent or temporary, provide an alternative to anchoring and allow for reduced anchoring in the area. Moorings can be provided for recreational vessels, as well as commercial vessels up to specific sizes. However, moorings also impact subtidal benthic invertebrates through chronic damage and physical disturbance to the seabed (Griffiths et al. 2017). Moorings that reduce or avoid contact with the seabed, known as eco-moorings, could be used to reduce disturbance and prevent physical damage to subtidal benthic invertebrates from mooring structures (Demers et al. 2013). Evidence for other interventions related to mooring are summarised under “Threat: Transportation and service corridors – Periodically move and relocate moorings”, and “Provide additional moorings to reduce anchoring”.
Demers M.C.A., Davis A.R. & Knott N.A. (2013) A comparison of the impact of ‘seagrass-friendly’boat mooring systems on Posidonia australis. Marine Environmental Research, 83, 54–62.
Griffiths C.A., Langmead O.A., Readman J.A.J. & Tillin H.M. (2017) Anchoring and Mooring Impacts in English and Welsh Marine Protected Areas: Reviewing sensitivity, activity, risk and management. A report to Defra Impacts Evidence Group.