期刊
ICES JOURNAL OF MARINE SCIENCE
卷 66, 期 4, 页码 691-698出版社
OXFORD UNIV PRESS
DOI: 10.1093/icesjms/fsp058
关键词
abundance; activity indices; artificial reef; faunal assemblages; habitat complexity; scuba; visual census
资金
- NERC
- AWARE Foundation
- British Sub- Aqua Jubilee Trust
- Society for Underwater Technology
- NERC [dml011000] Funding Source: UKRI
- Natural Environment Research Council [dml011000] Funding Source: researchfish
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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