Circalittoral mud Intermediate typically 2.5-6 Moderate Essink 1999, Orviku et al. siltation impacts. years 2008, Powilleit et al. 2009, Altered size Vatanen et al. 2012 distribution (juveniles die). Mortality takes place but recovery is rather fast. Habitat forming species Furcellaria Sedimentation High sensitivity Eriksson & Johansson lumbricalis effects are high. 2005 Zostera marina Sedimentation 4-6 years High sensitivity Oulasvirta & Leinikki 2003, effects are high. Erftemeijer et al. 2006, Munkes et al. 2015 Charophytes Sedimentation and High sensitivity Eriksson et al. 2004, altered wave Munsterhjelm 2005, energy impact Sandström et al. 2005, highly. Torn et al. 2010 Mytilus edulis Sedimentation High sensitivity Kotta et al. 2009 effects are high. Fucus spp. No colonization >4 years High sensitivity Bonsdorff 1980, Bonsdorff and 80% loss of et al. 1986, Eriksson & coverage at impact Johansson 2005, Vatanen zone. et al. 2012, Syväranta et al. 2013, Syväranta & Leinikki 2015 Table A.2.4. Sensitivity of benthic habitats to ‘Changes in hydrographical conditions’ based on the literature review. The sensitivities are estimated based on activities causing impacts. [Moved from main text to annex] Benthic habitat Reported impacts Sensitivity References category Broad-scale seabed habitats Infralittoral hard bottom Accumulation of finer sediments to High Martin et al. 2005 landward side of coastal structures -> high biological impact on sessile species. Infralittoral sand Accumulation of finer sediments to Moderate Martin et al. 2005, Eastwood et landward side of coastal structures -> al. 2007 biological change. Abrasion around an installation changes seabed morphology and substrate. Infralittoral mud Accumulation of finer sediments to Moderate Martin et al. 2005, Eastwood et landward side of coastal structures -> al. 2007 biological change. Abrasion around an installation changes seabed morphology and substrate. Circalittoral hard bottom No information
Circalittoral mud Intermediate siltation impacts. Altered size distribution (juveniles die). Mortality takes place but recovery is rather fast. typically 2.5-6 years Moderate Essink 1999, Orviku et al. 2008, Powilleit et al. 2009, Vatanen et al. 2012 Habitat forming species Furcellaria lumbricalis Sedimentation effects are high. High sensitivity Eriksson & Johansson 2005 Zostera marina Sedimentation effects are high. 4-6 years High sensitivity Oulasvirta & Leinikki 2003, Erftemeijer et al. 2006, Munkes et al. 2015 Charophytes Sedimentation and altered wave energy impact highly. High sensitivity Eriksson et al. 2004, Munsterhjelm 2005, Sandström et al. 2005, Torn et al. 2010 Mytilus edulis Sedimentation effects are high. High sensitivity Kotta et al. 2009 Fucus spp. No colonization and 80% loss of coverage at impact zone. >4 years High sensitivity Bonsdorff 1980, Bonsdorff et al. 1986, Eriksson & Johansson 2005, Vatanen et al. 2012, Syväranta et al. 2013, Syväranta & Leinikki 2015 Table A.2.4. Sensitivity of benthic habitats to ‘Changes in hydrographical conditions’ based on the literature review. The sensitivities are estimated based on activities causing impacts. [Moved from main text to annex] Benthic habitat Reported impacts Sensitivity category References Broad-scale seabed habitats Infralittoral hard bottom Accumulation of finer sediments to landward side of coastal structures -> high biological impact on sessile species. High Martin et al. 2005 Infralittoral sand Accumulation of finer sediments to landward side of coastal structures -> biological change. Abrasion around an installation changes seabed morphology and substrate. Moderate Martin et al. 2005, Eastwood et al. 2007 Infralittoral mud Accumulation of finer sediments to landward side of coastal structures -> biological change. Abrasion around an installation changes seabed morphology and substrate. Moderate Martin et al. 2005, Eastwood et al. 2007 Circalittoral hard bottom No information
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