13.2 Threat: Transportation and service corridors
p. 648-650
Texte intégral
13.2.1 Utility and service lines
No evidence found (no assessment)
1We have captured no evidence for the following interventions:
Bury cables and pipelines in the seabed rather than laying them on the seabed
Leave utility and service lines in place after decommissioning
Remove utility and service lines after decommissioning
Set limits on the area that can be covered by utility and service lines at one location
Use a different technique when laying and burying cables and pipelines
Use cables and pipelines of smaller width.
13.2.2 Shipping lanes
Unknown effectiveness
Cease or prohibit shipping
2Three studies examined the effects of ceasing or prohibiting shipping on subtidal benthic invertebrate populations. All studies were in the North Sea (Belgium, Germany, Netherlands).
3COMMUNITY RESPONSE (2 STUDIES)
4Overall community composition (1 study): One site comparison study in the North Sea found that areas closed to shipping developed different overall invertebrate community compositions compared to areas where shipping occurred.
5Overall species richness/diversity (1 study): One site comparison study in the North Sea found that areas closed to shipping did not develop different overall invertebrate species richness and diversity compared to areas where shipping occurred.
6POPULATION RESPONSE (2 STUDIES)
7Overall abundance (2 studies): Two site comparison studies (one before-and-after) in the North Sea found that areas closed to shipping had similar overall invertebrate abundance and biomass compared to areas where shipping occurred.
8Overall abundance (2 studies): Two site comparison studies (one before-and-after) in the North Sea found that areas closed to shipping had similar overall invertebrate abundance and biomass compared to areas where shipping occurred.
9OTHER (2 STUDIES)
10Overall community energy flow (1 study): One before-after, site comparison study in the North Sea found that after closing an area to shipping, invertebrate community energy flow did not change, but it increased in nearby areas where shipping occurred.
11Species energy flow (1 study): One before-and-after, site comparison study in the North Sea found that closing an area to shipping had mixed effects on species-level energy flow.
12Assessment: unknown effectiveness (effectiveness 35 %; certainty 30 %; harms 0 %).
https://www.conservationevidence.com/actions/2086
No evidence found (no assessment)
13We have captured no evidence for the following interventions:
Divert shipping routes
Limit, cease or prohibit anchoring from ships/boats/vessels
Limit, cease or prohibit recreational boating
Periodically move and relocate moorings
Provide additional moorings to reduce anchoring
Reduce ships/boats/vessels speed limits
Set limits on hull depth
Use a different type of anchor
Use moorings which reduce or avoid contact with the seabed (eco- moorings).
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