Effects of Organic Effluents from a Salmon Farm on a Fjord System. II. Temporal and Spatial Patterns in Infauna Community Comparison

• Published in: Aquaculture Vol. 262; no. 2; p. 355
• Main Authors: Kutti, Tina, Hansen, Pia Kupka, Ervik, Arne, Hoisaeter, Tore, Johannessen, Per
• Format: Journal Article
• Language: English
• Published: 28.02.2007
• ISSN: 0044-8486

Effects of organic effluents from a salmon farm on a fjord system, were examined. The study showed that the large-scale effects on the benthos were restricted to the nearest 250 m of the farm. Highest species richness was found 550-900 m from the farm, where, at peak production , the number of species doubled from, 20 to 40 species per 0.1 m super(-2). The analyses showed that at deep sites organic waste affected benthos on a spatial, scale much larger than at shallow water sites, and although the in fauna community composition varied over time, the consistently in the spatial pattern in the relationship between species richness, abundance and biomass in the course of study indicated that the observed patterns were temporally stable.