Physical loss | Smothering (e.g. by man-made structures, disposal of dredge spoil),
sealing (e.g. by permanent constructions).
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Physical damage | Changes in siltation (e.g. by outfalls, increased run-off, dredging/disposal of dredge spoil),
abrasion (e.g. impact on the seabed of commercial fishing, boating, anchoring),
selective extraction (e.g. exploration and exploitation of living and non-living resources on seabed and subsoil).
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Other physical disturbance | |
Interference with hydrological processes | Significant changes in thermal regime (e.g. by outfalls from power stations),
significant changes in salinity regime (e.g. by constructions impeding water movements, water abstraction).
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Contamination by hazardous substances | Introduction of synthetic compounds (e.g. priority substances under Directive 2000/60/EC which are relevant for the marine environment such as pesticides, antifoulants, pharmaceuticals, resulting, for example, from losses from diffuse sources, pollution by ships, atmospheric deposition and biologically active substances),
introduction of non-synthetic substances and compounds (e.g. heavy metals, hydrocarbons, resulting, for example, from pollution by ships and oil, gas and mineral exploration and exploitation, atmospheric deposition, riverine inputs),
introduction of radio-nuclides.
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Systematic and/or intentional release of substances | Introduction of other substances, whether solid, liquid or gas, in marine waters, resulting from their systematic and/or intentional release into the marine environment, as permitted in accordance with other Community legislation and/or international conventions.
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Nutrient and organic matter enrichment | Inputs of fertilisers and other nitrogen — and phosphorus-rich substances (e.g. from point and diffuse sources, including agriculture, aquaculture, atmospheric deposition),
inputs of organic matter (e.g. sewers, mariculture, riverine inputs).
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Biological disturbance | Introduction of microbial pathogens,
introduction of non-indigenous species and translocations,
selective extraction of species, including incidental non-target catches (e.g. by commercial and recreational fishing).
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