Welsh Modiolus modiolus beds 2013: 2010 and 2011 North Llyn Additional Modiolus side scan survey

Biogenic horse mussel (Modiolus Modiolus) reef is an important feature of the Pen Llyn a'r Sarnau SAC. The reef has high biodiversity and is vulnerable to anthropogenic activities, such as benthic fishing. The mussel reef forms an undulating surface that is significantly different to the surrounding seabed and therefore acoustic monitoring methods can be used to monitor changes in extent and identity areas of potential damage. Work is carried out on the north Llyn horse mussel reef in Pen Llyn a'r Sarnau jointly by CCW and University of Wales Bangor. Project is carried out in conjunction with the Across Wales drop-down video project.生物成因马贻贝（Modiolus Modiolus）礁是彭林与萨纳海岸特别保育区（Pen Llyn a'r Sarnau SAC）的重要生态特征。该礁体生物多样性极高，且极易受到底栖捕捞等人类活动的干扰与破坏。此类贻贝礁形成起伏不平的礁体表面，与周边海底地貌存在显著差异，因此可通过声学监测方法追踪其分布范围变化，并识别潜在受损区域。针对该保育区内北彭林马贻贝礁的研究工作，由威尔士乡村委员会（Countryside Council for Wales, CCW）与班戈威尔士大学（University of Wales Bangor）联合开展。本项目与全威尔士垂降视频项目（Across Wales drop-down video project）协同实施。