If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email firstname.lastname@example.org
South Carolina's state-maintained Marine Artificial Reef Program has begun evaluating manufactured artificial reef structures for consideration in future construction efforts on the state's offshore artificial reefs. Manufactured reef units may become a viable replacement for, or supplement
to, many forms of scrap matcrials currently being used to construct artificial reefs. Designed reef structures made of steel, concrete, or plastic, are readily available through established private industries and offer numerous advantages to fisheries managers attempting to utilize artificial
reefs as effective fisheries enhancement tools. To assess the usefulness of designed reef materials currently available, eight types of manufactured reef units were placed on two artificial reefs off South Carolina. The first reef unit design, consisting of low profile concrete pipes, was
deployed in 1985. Additional designs, made from molded plastic domes, were added in 1986. The remainder, consisting of steel cubes as well as other concrete designs, were placed on station in 1987. Each design was evaluated based on its procurement, handling and transportation costs, as well
as its stability, durability and biological effectiveness. Construction costs of test reefs ranged from $81/m3 for the steel cubes, to $168/m3 for one of the concrete pipe modifications, with a mean cost of $110/m3. Initial in-water evaluation
has revealed severe stability problems with two designs, but detected no structural weaknesses in any of the unit types. Preliminary examinations indicated no measurable differences in established populations of target fish species on the different unit types examined. Two years of observations
of the initial concrete pipe design are encouraging, and at this time these units appear to offer a viable option for a practical manufactured reef structure for South Carolina's Marine Artificial Reef Program. Assessment of the overall effectiveness of each design will be made through continued
monitoring of each test reef over the next 2 to 3 years.
The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.