Classification of the ecological quality of the Aysen and Baker Fjords (Patagonia, Chile) using biotic indices

Quiroga, Eduardo; Ortiz, Paula; Reid, Brian; Gerdes, Dieter

doi:10.1016/j.marpolbul.2012.11.041

Cited by 23 publications

(12 citation statements)

References 47 publications

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“…Most benthic indicators (92%) were applied at the ‘farm’ scale which was expected since benthic effects are typically observed within 50 m of cages 90 (Figure 4). Exceptions included studies in which sampling sites were selected to compare the impact of aquaculture between areas within the same region 91,92 . Indicators of benthic enrichment including organic carbon content have been applied in larger‐scale studies of benthic condition not specific to the impacts of aquaculture, but multiple sources of variability limit the usefulness of organic carbon as an indicator of benthic condition at larger spatial scales 93 .…”

Section: Resultsmentioning

confidence: 99%

“…125 Differences in AMBI between farm and reference sites have been noted 125 as well as differences between two Fjords where one was host to intensive aquaculture and the other was beyond the limit of aquaculture expansion. 92 Correlations between AMBI and other indicators including foraminiferal assemblage gradient, 68 bacteria-based metrics obtained using eDNA metabarcoding, 70 redox potential and organic matter 126 have been observed. AMBI, as well as other biological indicators, appear to respond faster to impacts under salmon cages than physicochemical indicators 127 ; however, improvement slows after initial decrease.…”

Section: R E Fe R E N C E Smentioning

confidence: 87%

“…Exceptions included studies in which sampling sites were selected to compare the impact of aquaculture between areas within the same region. 91,92 Indicators of benthic enrichment including organic carbon content have been applied in larger-scale studies of benthic condition not specific to the impacts of aquaculture, but multiple sources of variability limit the usefulness of organic carbon as an indicator of benthic condition at larger spatial scales. 93 Even within the farm area itself, the distance at which enrichment indicators are sensitive to farming activity can be affected by local variables including depth, latitude and sediment type.…”

Section: Benthic Effectsmentioning

confidence: 99%

See 2 more Smart Citations

Environmental indicators in salmon aquaculture research: A systematic review

Rector

Weitzman

Filgueira

et al. 2021

Reviews in Aquaculture

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The ecosystem approach to aquaculture (EAA) is a strategy for the sustainable development of the aquaculture sector, but the question of how it can be practically implemented remains unclear. Indicators that can be applied at relevant scales of impact and that reflect the environmental status and change offer a means of operationalizing EAA. Therefore, a systematic literature review was carried out to identify environmental indicators referenced in salmon aquaculture literature and review their potential to support EAA. Using the PRISMA method for selecting journal papers, 101 articles that included 531 indicators were reviewed. Indicators were characterized based on the effect of aquaculture they measure, their similarity to other indicators extracted, and the scale at which they were applied. Indicators and their characteristics are presented in a searchable online database. A scoring method for evaluating indicators based on criteria drawn from environmental indicator literature and the potential scalability of indicators to meet the needs of EAA was developed and applied to the most frequently referenced indicators. Overall, near-field indicators of benthic impacts dominated salmon aquaculture literature. Of the most frequently referenced indicators, those that scored highest based on criteria drawn from environmental indicator literature also scored highest on scalability and therefore their potential contribution to EAA. Overall, results suggest that additional research and application of far-field environmental indicators in salmon aquaculture will be required to identify a suite of indicators that can be applied as part of EAA practice.

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Section: Resultsmentioning

confidence: 99%

Section: R E Fe R E N C E Smentioning

confidence: 87%

Section: Benthic Effectsmentioning

confidence: 99%

See 1 more Smart Citation

Environmental indicators in salmon aquaculture research: A systematic review

Rector

Weitzman

Filgueira

et al. 2021

Reviews in Aquaculture

View full text Add to dashboard Cite

show abstract

“…[20]) and highly variable at both seasonal [43,44] and pluri-annual scales [45]. Most authors usually agree on, for example, the general efficiency of the AMBI and the derived M-AMBI [34,37,40,41,46,47] or the relative ineffectiveness of the BOPA index [32,48,49]. However, the practical use of benthic indicators might have reach a dead end, since no real consensus has been reached yet and inter-calibration and standardisation are still needed, as shown by the ongoing inundation of papers related to comparesons or intercalibrations (see references here above).…”

mentioning

confidence: 96%

The Future of Benthic Indicators: Moving up to the Intertidal

Spilmont¹

2013

OJMS

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The use of benthic indicators has increased dramatically during the last decades. The number of articles published on the subject, as well as the number of citations, has been particularly increasing since the early 90’s, notably in relation with the implementation of directives for the management of aquatic/marine ecosystems such as the Water Framework Directive and the Marine Strategy Framework Directive. Current benthic indicators suffer from severe drawbacks and their practical use is still discussed and might have reached a dead end. Indicators based on species composition are not totally satisfactory, mainly because they exhibit a high spatio-temporal variability (e.g. variable at both seasonal and pluri-annual scales) and are user-dependent (e.g. divergent results from US orEuropeexperts.) In turn, modifications of behaviour, metabolism, phenotype or stable isotopes composition in invertebrates usually occur at short time scales, compared to detectable changes in community composition, and makes their use particularly relevant as indicators of perturbation. It is argued in this paper that these functional indicators might be relatively quickly implemented in the intertidal, and represent an effective alternative to current benthic indicators.

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“…Furthermore, it has been adapted for use in United States coastal waters (US AMBI) (Pelletier et al, 2018) and the Arctic (Azovsky and Kokarev, 2019). This worldwide adoption is largely due to its suitability for the assessment of environments such as estuaries (Tweedley et al, 2014;Zhou et al, 2018), coastal lagoons (Carvalho et al, 2006;Reizopoulou et al, 2014), and fjords (Quiroga et al, 2013;Alve et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Data_Sheet_1.pdf

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Classification of the ecological quality of the Aysen and Baker Fjords (Patagonia, Chile) using biotic indices

Cited by 23 publications

References 47 publications

Environmental indicators in salmon aquaculture research: A systematic review

Environmental indicators in salmon aquaculture research: A systematic review

The Future of Benthic Indicators: Moving up to the Intertidal

Data_Sheet_1.pdf

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