Development of a fish-based index (FBI) of biotic integrity for French lakes using the hindcasting approach

Launois, Lionel; Veslot, Jacques; Irz, Pascal; Argillier, Christine

doi:10.1016/j.ecolind.2011.03.028

Cited by 45 publications

(49 citation statements)

References 43 publications

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“…river stretches) (Soranno et al , ). Second, the spatial distribution of species must respond to the alterations assessed (Launois et al , ). Third, the use of this framework relies on the availability of relevant information about the conservation status, the biogeographical origin, the ecological traits and the socio‐economic value of all the species considered (Maire et al , ).…”

Section: Discussionmentioning

confidence: 99%

“…The analytical reference condition is obtained by lowering the value of the human disturbance variables included in predictive models, thus providing an estimation of the value of the response variable with no or reduced disturbance (Soranno et al, 2011). For instance, Launois et al (2011) used hindcasting modelling to build a fish-based index to assess the ecological integrity of lakes in France, although most of the lakes studied were already strongly altered. This paper describes a conservation and restoration planning framework developed and applied to the fish assemblages of the river network of the Pas-de-Calais department in northern France.…”

Section: Introductionmentioning

confidence: 99%

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Hindcasting modelling for restoration and conservation planning: application to stream fish assemblages

Maire

Buisson

Canal

et al. 2015

Aquatic Conservation

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Although ecosystems are increasingly threatened worldwide, the resources available to set up management actions, such as conservation or restoration, remain severely limited. Methods designed to spatially allocate conservation and restoration actions while maximizing their ecological benefits are urgently needed. Whereas conservation planning methods have been extensively developed in past decades, improvements in restoration planning are still needed to build efficient management tools. This methodological gap may be explained by the difficulties encountered when estimating non‐disturbed ecological conditions (i.e. reference conditions) which are usually required to compare past and present ecosystem states. Here, the species composition of stream fish assemblages in 607 river stretches of the Pas‐de‐Calais department in the north of France was predicted using species distribution models. Present occurrence was predicted according to four environmental variables, including two related to human‐induced disturbances (i.e. proportion of river stretch length affected by hydraulic works and local geomorphological alterations). The fish assemblages potentially present in the absence of such disturbances were then predicted using hindcasting modelling which involves artificially setting to zero the values of the disturbance variables in the models. A framework based on a multi‐faceted approach of diversity was applied to the present‐day fish assemblages and those predicted under the two non‐disturbed scenarios (i.e. restoration scenarios) to assess their suitability for management. While the theoretical restoration of the natural flow regimes was likely to result in few changes in fish assemblage composition and consequently in their multi‐faceted diversity, the restoration of natural geomorphological characteristics was predicted to reduce the taxonomic diversity but increase the functional diversity, the natural heritage importance and the socio‐economic value of the fish assemblages. This study provides environmental decision‐makers with a tool to identify precisely and simultaneously the conservation and restoration actions that have to be undertaken as a priority, by comparing the present and non‐disturbed multi‐faceted diversity indices. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hindcasting modelling for restoration and conservation planning: application to stream fish assemblages

Maire

Buisson

Canal

et al. 2015

Aquatic Conservation

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“…Water quality strongly influences fish assemblages in lakes (Nürnberg 1995;Jeppesen et al 2000;Drake and Pereira 2002), and fish-based measures have been useful for understanding the effects of eutrophication (Larkin and Northcote 1969;Lee et al 1991;Launois et al 2011). Watershed/water quality effects on fish communities are frequently significant even when physical habitat effects are not (Jennings et al 1999;Mehner et al 2005;Søndergaard and Jeppesen 2007).…”

Section: Water Quality Habitatmentioning

confidence: 98%

Full Issue PDF, Volume 41, Issue 6

2016

Fisheries

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“…Pearson's correlation was used to clarify the correlation between each variable and to identify significant similarities in the patterns of variation among all the water quality variables. Based on the results of Pearson's correlation (r> 0.8), if two water quality variables were highly correlated, only one variable was retained to avoid redundancy (Launois et al, 2011;Oliveira et al, 2011). Then, the classification and weighted values of the selected water quality parameters were calculated according to Principal component analysis (PCA).…”

Section: Data Analysesmentioning

confidence: 99%

Macrobenthos Diversity Response to Hydrological Connectivity Gradient

et al. 2014

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The abundant riparian wetlands supported by the complex river network in Pearl River Delta (PRD) are under an intensely anthropogenic disturbance that threatens the local ecological environment. This paper examined the benthic invertebrate diversity and biomass within the Pearl River through a field study. A fieldwork was conducted to assess a hydrological connectivity gradient among the main channel of the Pearl River. The responses of macroinvertebrate metrics to the connectivity gradient and the restoration history in the river channel were examined. The Shannon diversity index ranged from 0.75 to 2.08, which was the highest among most connectivity river channels. Statistical analyses (PCA and CCA) revealed that the benthic abundance in high hydrological connectivity riverine habitats is clearly distinct from the low connectivity habitats. Results demonstrated that the diversity and density of macrobenthos are determined by hydrological connectivity and time span of the restoration (river channels). Therefore, conservation and restoration efforts should focus on the macroinvertebrate response to the hydrological connectivity of the river channels in PRD.

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Development of a fish-based index (FBI) of biotic integrity for French lakes using the hindcasting approach

Cited by 45 publications

References 43 publications

Hindcasting modelling for restoration and conservation planning: application to stream fish assemblages

Hindcasting modelling for restoration and conservation planning: application to stream fish assemblages

Full Issue PDF, Volume 41, Issue 6

Macrobenthos Diversity Response to Hydrological Connectivity Gradient

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