Create natural rocky reef topography on subtidal artificial structures

How is the evidence assessed?
  • Effectiveness
    not assessed
  • Certainty
    not assessed
  • Harms
    not assessed

Study locations

Key messages

  • One study examined the effects of creating natural rocky reef topography on subtidal artificial structures on the biodiversity of those structures. The study was on an open coastline in Italy.

COMMUNITY RESPONSE (0 STUDIES)

POPULATION RESPONSE (1 STUDY)

  • Algal abundance (1 study): One replicated, randomized, controlled study in Italy found that creating natural rocky reef topography on subtidal artificial structures did not increase the abundance of juvenile canopy macroalgae that settled onto structure surfaces, regardless of the topography depth.

BEHAVIOUR (0 STUDIES)

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A replicated, randomized, controlled study in 2009 on a subtidal rocky reef on open coastline in the Adriatic Sea, Italy (Perkol-Finkel et al. 2012) found that creating natural rocky reef topography on settlement plates did not increase the abundance of juvenile canopy algae Cystoseira barbata that settled onto plates. After five months, there was no significant difference in the average abundance of juveniles on settlement plates with natural rocky reef topography (deep topography: 23/plate; shallow: 28/plate) and plates without (19/plate). Clay settlement plates (100 × 100 mm) were made with and without natural rocky reef topography imprinted on their surfaces using pieces of natural rock as the clay set. Six plates with each of deep (imprinted 5 mm deep) and shallow (1–2 mm) topography and six plates without were randomly arranged horizontally at 3 m depth on a rocky reef with existing adult canopy algae in March 2009. Juvenile canopy algae on plates were counted after five months.

    Study and other actions tested
Please cite as:

Evans, A.J., Moore, P.J., Firth, L.B., Smith, R.K., and Sutherland, W.J. (2021) Enhancing the Biodiversity of Marine Artificial Structures: Global Evidence for the Effects of Interventions. Conservation Evidence Series Synopses. University of Cambridge, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Biodiversity of Marine Artificial Structures

This Action forms part of the Action Synopsis:

Biodiversity of Marine Artificial Structures
Biodiversity of Marine Artificial Structures

Biodiversity of Marine Artificial Structures - Published 2021

Enhancing biodiversity of marine artificial structures synopsis

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