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The comparative effects of habitat complexity on faunal assemblages of northern temperate artificial and natural reefs
Hunter, W.R.; Sayer, M.D.J. (2009). The comparative effects of habitat complexity on faunal assemblages of northern temperate artificial and natural reefs. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 66(4): 691-698. http://dx.doi.org/10.1093/icesjms/fsp058
In: ICES Journal of Marine Science. Academic Press: London. ISSN 1054-3139; e-ISSN 1095-9289
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Abundance
    Complexity
    Fauna
    Habitats (artificial)
    Species diversity
    Structures > Hydraulic structures > Offshore structures > Artificial reefs
    Marien/Kust
Author keywords
    abundance; activity indices; artificial reef; faunal assemblages;habitat complexity; scuba; visual census
Auteurs  Top 
  • Hunter, W.R.
  • Sayer, M.D.J.
Abstract
    Several north temperate marine species were recorded on subtidal hard-substratum reef sites selected to produce a gradient of structural complexity. The study employed an established scuba-based census method, the belt transect. The three types of reef examined, with a measured gradient of increasing structural complexity, were natural rocky reef, artificial reef constructed of solid concrete blocks, and artificial reef made of concrete blocks with voids. Surveys were undertaken monthly over a calendar year using randomly placed fixed rope transects. For a number of conspicuous species of fish and invertebrates, significant differences were found between the levels of habitat complexity and abundance. Overall abundance for many of the species examined was 2-3 times higher on the complex artificial habitats than on simple artificial or natural reef habitats. The enhanced habitat availability produced by the increased structural complexity delivered through specifically designed artificial reefs may have the potential to augment faunal abundance while promoting species diversity.
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