Concept
Habitat structure changes - removal of substratum (extraction)
| URI | http://vocab.nerc.ac.uk/collection/M14/current/D1/1/ | ||
|---|---|---|---|
| Within Vocab | OSPAR list of defined pressures on the marine environment | ||
| Alternative Labels | |||
| Definition | Unlike the "physical change" pressure type where there is a permanent change in sea bed type (e.g. sand to gravel, sediment to a hard artificial substrate) the "habitat structure change" pressure type relates to temporary and/or reversible change, e.g. from marine mineral extraction where a proportion of seabed sands or gravels are removed but a residual layer of seabed is similar to the pre-dredge structure and as such biological communities could re-colonise; navigation dredging to maintain channels where the silts or sands removed are replaced by non-anthropogenic mechanisms so the sediment typology is not changed. | ||
| Date | 2015-09-11T13:08:17 | ||
| Identifier | SDN:M14::D1 | ||
| Note | accepted | ||
| Is Version Of | D1 | ||
| version | 1 | ||
| Broader | M15:D |
Physical damage (reversible change) | |
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