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Providing evidence to improve practice

Individual study: Fish-farming effects on benthic community structure in coastal sediments: analysis of meiofaunal recovery

Published source details

Mazzola A. (2000) Fish-farming effects on benthic community structure in coastal sediments: analysis of meiofaunal recovery. ICES Journal of Marine Science, 57, 1454-1461


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Cease or prohibit aquaculture activity Subtidal Benthic Invertebrate Conservation

A before-and-after, site comparison study in 1997 of two soft seabed sites in the Gulf of Gaeta, Mediterranean Sea, Italy (Mazzola et al. 2000) found that after removing a fish farm, invertebrate abundance appeared similar to that of an unfarmed site after two months, but community composition remained different after four months. Before removal, abundance at the farmed site (850–1,350/10 cm2) appeared different to the unfarmed site (1,250–2,750). This was still true a month after removal (farmed: 1,350; unfarmed: 2,800). After two months, abundances were similar at all sites (farmed: 1,500–2,300; unfarmed: 2,000–2,850). Community composition remained different after four months (data presented as graphical analyses). A fish farm was removed in July 1997. One farmed site and one unfarmed site (1 km north) were surveyed monthly between March and October 1997. Three sediment samples were taken by divers at each site during each survey using a core (3.7 cm diameter, 10 cm depth). Invertebrates (between 37 µm and 1 mm) were identified and counted.

(Summarised by Anaëlle Lemasson)