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Titolo:
Spatial and temporal variations of sediment quality in and around fish cage farms: A case study of aquaculture in the Seto Inland Sea, Japan
Autore:
Pawar, V; Matsuda, O; Yamamoto, T; Hashimoto, T; Rajendran, N;
Indirizzi:
Hiroshima Univ, Fac Appl Biol Sci, Hiroshima 7398528, Japan Hiroshima Univ Hiroshima Japan 7398528 iol Sci, Hiroshima 7398528, Japan
Titolo Testata:
FISHERIES SCIENCE
fascicolo: 4, volume: 67, anno: 2001,
pagine: 619 - 627
SICI:
0919-9268(200108)67:4<619:SATVOS>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
MARINE-SEDIMENTS; IMPACT;
Keywords:
aquaculture; sediment; sustainability;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Matsuda, O Hiroshima Univ, Fac Appl Biol Sci, Hiroshima 7398528, Japan Hiroshima Univ Hiroshima Japan 7398528 roshima 7398528, Japan
Citazione:
V. Pawar et al., "Spatial and temporal variations of sediment quality in and around fish cage farms: A case study of aquaculture in the Seto Inland Sea, Japan", FISHERIES S, 67(4), 2001, pp. 619-627

Abstract

Fish cage farming generates large amounts of organic waste in the form of unconsumed feed and fecal matter, resulting in sediment deterioration and athreat to its own sustainability. Field studies analysed the scale of the impact of fish cage farming on sediment quality, variability of impact and spread of sediment enrichment in the vicinity of a fish farm. Two fish culture sites near the Fukuyama area of the Seto Inland Sea of Japan were chosen for the study. There was a significant difference between the quality of the sediment in aquaculture and non-aquaculture areas. The sediment underlying the fish cage farms was found to be extremely reducing, acidic and sulfidic. Sediment ignition loss did not vary markedly with the season. However, the redox potential and acid volatile sulfide content of aquaculture areas did show some seasonal variation. Sediment encircling a 165 m radius fromthe center of a farm in Yokota was judged as organically enriched by fish farming. A variation in sediment quality within the two sites and also within the stations was observed. Based on sediment quality, the stations couldbe categorized as less affected, highly affected or moderately affected.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 18:19:38