Application of biotic and abiotic indicators for detecting benthic impacts of marine salmonid farming among coastal regions of Tasmania

Edgar, Graham J.; Davey, A; Shepherd, Colin

doi:10.1016/j.aquaculture.2010.07.018

Cited by 22 publications

(21 citation statements)

References 22 publications

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“…TP and redox potential values in the sediment were significantly different at 600 m and at 0 m from the fish cage and followed a decreasing and increasing trend, respectively, indicating that they were influenced by fish farming, which agrees with Karakassis et al (1998) and Edgar et al (2010). Furthermore, out of POC, PON and TP, the last parameter was best for establishing the spatial extent of fish farm particulate wastes, since it showed the highest correlation (r = 0.90) between sedimentation rate and sediment concentration.…”

supporting

confidence: 70%

Relationship between sedimentation rates and benthic impact on Maërl beds derived from fish farming in the Mediterranean

Sanz‐Lázaro

Belando

Marín-Guirao

et al. 2011

Marine Environmental Research

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The aim of this work was to study the dispersion of particulate wastes derived from marine fish farming and correlate the data with the impact on the seabed. Carbon and nutrients were correlated with the physico-chemical parameters of the sediment and the benthic community structure. The sedimentation rates in the benthic system were 1.09, 0.09 and 0.13 g m Therefore, the level of fish farm impact on the benthic community might be underestimated if it is assessed by merely taking into account data obtained from waste dispersion rates. The benthic habitat beneath the fish farm, Maërl bed, was seen to be very sensitive to aquaculture impact compared with other unvegetated benthic habitats, with an estimated POC-carrying capacity to maintain current diversity of 0.087 g C m -2 day -1 (only 36% greater than the basal POC input). Environmental protection agencies should define different aquaculture waste load thresholds for different benthic communities affected by finfish farming, according to their particular degree of sensitivity, in order to maintain natural ecosystem functions.

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supporting

confidence: 70%

Relationship between sedimentation rates and benthic impact on Maërl beds derived from fish farming in the Mediterranean

Sanz‐Lázaro

Belando

Marín-Guirao

et al. 2011

Marine Environmental Research

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“…modes or life-history characteristics (Reish, 1955;Heck, 1976;Pearson and Rosenberg, 1978;Warwick, 1986;Schaaf et al, 1987;Claudet and Fraschetti, 2010;Edgar et al, 2010). Few studies have assessed pollution impacts on marine fishes at the community level, but from those included in the meta-analysis of McKinley and Johnston (2010), positive responses in overall abundance and species richness to organic enrichment were the only relatively consistent trends identified.…”

Section: Introductionmentioning

confidence: 86%

Loss of native rocky reef biodiversity in Australian metropolitan embayments

Stuart‐Smith

Edgar

Stuart-Smith

et al. 2015

Marine Pollution Bulletin

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“…The diversity patterns of macrofauna community derived from fish farming have been widely studied worldwide [7,8,10,[62][63][64][65][66][67][68][69]. Following gradients of increasing organic enrichment benthic communities become less diverse, exhibit a lower biomass and a higher proportion of deposit feeders [44,70,71].…”

Section: Spatial Patterns In Benthic Macrofauna Diversity Caused By Fmentioning

confidence: 99%

Diversity Patterns of Benthic Macrofauna Caused by Marine Fish Farming

Sanz‐Lázaro

Marín

2011

Diversity

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This paper reviews the patterns observed in the diversity and structure of the macrofauna benthic community under the influence of fish farming. First, we explain the effects of organic enrichment on the sediment and the consequences for the inhabiting communities. We describe the diversity trends in spatial and temporal gradients affected by fish farming and compare them with those described by the Pearson and Rosenberg model. We found that in general terms, the trends of diversity and other community parameters followed the Pearson and Rosenberg model but they can vary to some extent due to sediment local characteristics or to secondary disturbances. We also show the different mechanisms by which wild fish can affect macrofauna diversity patterns under fish farming influence. In addition, we comment the importance of the macrofauna diversity in the ecosystem functions and propose some guidelines to measure functional diversity related to relevant processes at ecosystem level. We propose more research efforts in the main topics commented in this review to improve management strategies to guarantee a good status of the diversity and ecosystem functioning of sediments influenced by fish farming

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Application of biotic and abiotic indicators for detecting benthic impacts of marine salmonid farming among coastal regions of Tasmania

Cited by 22 publications

References 22 publications

Relationship between sedimentation rates and benthic impact on Maërl beds derived from fish farming in the Mediterranean

Relationship between sedimentation rates and benthic impact on Maërl beds derived from fish farming in the Mediterranean

Loss of native rocky reef biodiversity in Australian metropolitan embayments

Diversity Patterns of Benthic Macrofauna Caused by Marine Fish Farming

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