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Titolo:
Mitigating the environmental effects of mariculture through single-point moorings (SPMs) and drifting cages
Autore:
Goudey, CA; Loverich, G; Kite-Powell, H; Costa-Pierce, BA;
Indirizzi:
MIT, Sea Grant Coll Program, Cambridge, MA 02139 USA MIT Cambridge MA USA02139 ea Grant Coll Program, Cambridge, MA 02139 USA Ocean Spar Technol LLC, Bainbridge Island, WA 98110 USA Ocean Spar TechnolLLC Bainbridge Island WA USA 98110 sland, WA 98110 USA Woods Hole Oceanog Inst, Marine Policy Ctr, Woods Hole, MA 02543 USA WoodsHole Oceanog Inst Woods Hole MA USA 02543 Woods Hole, MA 02543 USA Mississippi Alabama Sea Grant Consortium, Ocean Springs, MS 39566 USA Mississippi Alabama Sea Grant Consortium Ocean Springs MS USA 39566 6 USA
Titolo Testata:
ICES JOURNAL OF MARINE SCIENCE
fascicolo: 2, volume: 58, anno: 2001,
pagine: 497 - 503
SICI:
1054-3139(200104)58:2<497:MTEEOM>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALMON FARMS; SUCCESSION; SEDIMENT;
Keywords:
aquaculture; benthic impacts; cage mooring; single point mooring;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Goudey, CA MIT, Sea Grant Coll Program, Room NE20-376,3 Cam, Cambridge, MA02139 USA MIT Room NE20-376,3 Cam Cambridge MA USA 02139 ge, MA 02139 USA
Citazione:
C.A. Goudey et al., "Mitigating the environmental effects of mariculture through single-point moorings (SPMs) and drifting cages", ICES J MAR, 58(2), 2001, pp. 497-503

Abstract

The production of finfish in cages causes a measurable impact on the nearby water and seabed due to faeces production and uneaten Feed. The impact depends on the specifics: of the culture operation and on the environment in which it is located. The most severe impact has been associated with large.intensive operations in areas with inadequate water circulation, where benthic habitats have been seriously degraded. The current practice of mooringa cage. or a cage array, over a permitted site exacerbates the problems. An alternative approach is to allow cages to move in response to the environment. For example, the use of a single point mooring (SPM) would allow the operation to maintain a "watch circle" where the position of the cage(s) depends on the sum of the environmental forces. By spreading out the accumulation of organic matter. one can prevent the local environment From being overwhelmed. Preliminary analyses of the benefits of SPM indicate ii two-foldto 70-fold reduction in deposition of waste on the seabed, depending on mooring geometry and current type. Other advantages are related to reduced anchoring costs, improved accessibility, and the ability of having certain cages in the lead position with respect to currents and good oxygen conditions, The concept of drifting cages is introduced as a Further alternative to minimizing impact on the seabed. (C) 2001 International Council for the Exploration of the Sea.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 23:51:50