Substrate Addition - Artificial reef — Kueihou, Tawulun, and Wanghaihsiang

OPP-ZRD7B8permanent identifier · cite as oceanportfolio.org/p/OPP-ZRD7B8

Published as: Effects of pile size of artificial reefs on the standing stocks of fishes. | Technique: Substrate Addition - Artificial reef | Disturbance addressed: not reported | Genera: n/a | Method: Underwater investigations were conducted at three established AR habitats. All artificial habitats were established by reef units of 2-m3 hollow concrete cubes with holes in them. These ARs were mostly situated on extensive areas of sandy sea floor at 20–30m depth. At each site, various arrangements of reef units were available. Fish communities were surveyed with timed dives (40 min). | Authors' conclusion: Resident fish species tended to increase until the pile reached a size of 20–30 reef units. Thereafter, the increase in biomass slowed, and maximum biomass would eventually be reached only with a further increase in the pile size. | Lessons reported: Predictions of the efficiency of unit reefs for different pile sizes indicate that a pile consisting of 4–10 units of this type of reef would be most effective in terms of biomass of residents. Nevertheless, a size of 15 units is recommended when the behaviour of visiting fish species is taken into account. | This record was compiled from a published source and has not been confirmed by the organisation that carried out the work. No contribution to the condition index is recorded: the source reports survival of transplanted material, which is not a measure of ecosystem condition.

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