Fuzzy logic modelling of anadromous Arctic char spawning habitat from Nunavik Inuit knowledge

Dubos, Véronique; St‐Hilaire, André; Bergeron, Normand

doi:10.1016/j.ecolmodel.2022.110262

Cited by 6 publications

(4 citation statements)

References 45 publications

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“…The habitat suitability model (HSM) was developed by integrating the fish habitat requirements and hydrodynamic model results into the suitability indices to simulate the corresponding habitat characteristics (Wang et al, 2020). This model has been widely used to assess the availability of fish habitats, and one of its advantages is that it quantitatively evaluates the effect of dam construction on fish habitats and the effect of ecological restoration of these habitats (Dubos et al, 2023; Wang et al, 2023). In this study, the habitat model was developed to predict the physiological characteristics of target fish species, which involved three major periods in a hydrological year, including the spawning period (from April to July), feeding period (from July to November) and migration period (from December to March of the next year) (Figure 2).…”

Section: Methodsmentioning

confidence: 99%

Dam‐induced difference of fish habitat distribution in the fluctuating backwater zone of the Three Gorges Dam

Wang,

Xie,

Yang

et al. 2024

Ecohydrology

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Changes in fish habitat induced by dam construction in the downstream river have been well documented in an increasing body of literature. Fish habitats in the backwater zone of dams have undergone dramatic changes, which have still remained poorly understood. This study aims to provide a more complete understanding of fish habitat distribution and clarify fish habitat utilization patterns in the upstream dam in order to adopt effective remediation activities. This study was conducted in the Three Gorges Dam (TGD) as it is the world's largest installed capacity hydropower station, with a backwater zone length of about 660 km. Four major Chinese carp (FMCC) were selected as target fish species, and fish habitat distribution upstream of TGD was assessed by integrating the swimming ability and environmental preference of different fish species into their critical life stages. Assessment results at different life stages of the target fish species showed that June was a critical period for spawning activities FMCC in the fluctuating backwater zone of TGD. The riverbank was an important feeding habitat for FMCC, and the high‐velocity flow in the centre of the channel exceeded the limits of the swimming ability of target fish. The fish habitat distribution in the fluctuating backwater zone of TGD was heavily affected by runoff from April to September and by dam operation from October to March of the next year. This work provide valuable information about river conservation and management in the upstream of TGD.

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Section: Methodsmentioning

confidence: 99%

Dam‐induced difference of fish habitat distribution in the fluctuating backwater zone of the Three Gorges Dam

Wang,

Xie,

Yang

et al. 2024

Ecohydrology

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“…For context, a parallel process is being undertaken with Indigenous Knowledge holders (the Sululiit ACMC) that is co‐designed with the ACMC to reflect how they would like to structure their workshops and sharing sessions that fit their needs. Recent work reporting on FCM with Inuit partners demonstrates how these processes can be community specific (Dubos et al, 2023). A future paper will report on this parallel process in the future.…”

Section: Methodsmentioning

confidence: 99%

Fuzzy cognitive mapping as a tool to assess the relative cumulative effects of environmental stressors on an Arctic seabird population to identify conservation action and research priorities

Rooney

Daniel

Hedd

et al. 2023

Ecol Sol and Evidence

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In the Arctic, chemical contaminants, shipping, oil pollution, plastic pollution, changing habitats in relation to climate change and fisheries have been identified as environmental stressors to seabirds such as Fulmarus glacialis (northern fulmar; qaqulluk; ᖃᖁᓪᓗᖅ), but rarely have these stressors been considered within a cumulative effects framework in this species which is currently showing a declining populations trend. As a novel tool to understand cumulative effects within a conservation context, we applied a fuzzy cognitive mapping (FCM) approach that allows experts to arrange key factors and their interrelationships, organizing their understanding of the components of a complex issue into a graphical representation; a ‘cognitive map’. This process was grounded in local environment concerns as documented in several Nunavut‐specific reports and discussions, and worked with western‐trained seabird experts with knowledge of northern fulmar populations to assess the inter‐related environmental threats to fulmars as a way to combine these stressors in a cumulative effects framework and identify conservation actions and knowledge gaps. We found strong agreement that the main stressors affecting northern fulmar populations in Canada include pollution (11% total influence (TI)), shipping activities (16% TI), hunting and fishing (18% TI) and mining/oil and gas exploitation activities (22% TI). The indirect influence of threats on northern fulmar population size (57% TI) exceeded the total direct influence (43% TI), emphasizing the value of cognitive mapping in cumulative effects assessment for a more holistic understanding of interacting stressors. Participants expressed substantial uncertainty regarding the strong relationships leading from the concepts, commercial fishing activity in the BBDS and the North Atlantic fisheries activity, indicating that these potential stressors require more research. Similarly, uncertainty was expressed about the potential effects of zodiac traffic, ship strikes of northern fulmar, number of oil spills and magnitude of oil spills on northern fulmar. By characterizing individual factors as manageable or not, we determined that stressors are largely manageable with enforcement of existing policies (58% TI)—importantly, fishing activities were both highly influential on fulmars and deemed manageable, which will inform ongoing co‐management planning in the region.

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“…The reasons for this comparative approach are varied but include how IK is perceived (e.g., 13,17) and the lack of statistical methods for more formal inclusion of IK and 'Western' scientific data in the same approach. IK has been included in previous studies of habitat use (35)(36)(37), but those studies do not directly characterize or estimate the relationships between species and habitat covariates. Expanding on these methods to be able to directly estimate IK species-habitat relationships and the ability to consider changing habitat due to climate change will provide additional approaches to better inform species management and conservation, further recognizing IK as a valuable knowledge source.…”

Section: R a F Tmentioning

confidence: 99%

“…As noted by co-author B. Adams, knowledge gained by hunters over time can have a better understanding of species habitat use and behavior than approaches that just use satellite tagged animals. In fact, IK has been included in previous studies of habitat use (22)(23)(24)(25), but those studies do not directly characterize or estimate the relationships between species and habitat covariates. Expanding on these methods will provide additional approaches to better inform species management and conservation.…”

mentioning

confidence: 99%

Indigenous Knowledge as a sole data source in habitat selection functions

Gryba,

VonDuyke,

Huntington

et al. 2023

Preprint

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While Indigenous Knowledge (IK) contains a wealth of information on the behaviour and habitat use of species, it is rarely included in the species-habitat models frequently used for conservation and management decisions. Exclusion of IK can negatively impact species and communities. We developed methods that relies solely on IK to identify species habitat use and important areas. We apply the method to ringed seals (natchiqin Iñupiat) in Alaskan waters, for which the designated critical habitat has been legally debated in part due to minimal inclusion of IK. This work was completed in partnership with Iñupiat hunters. Our work demonstrates how IK of species habitat use and important areas can be presented in a way that can be easily and meaningfully considered for species management.

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Fuzzy logic modelling of anadromous Arctic char spawning habitat from Nunavik Inuit knowledge

Cited by 6 publications

References 45 publications

Dam‐induced difference of fish habitat distribution in the fluctuating backwater zone of the Three Gorges Dam

Dam‐induced difference of fish habitat distribution in the fluctuating backwater zone of the Three Gorges Dam

Fuzzy cognitive mapping as a tool to assess the relative cumulative effects of environmental stressors on an Arctic seabird population to identify conservation action and research priorities

Indigenous Knowledge as a sole data source in habitat selection functions

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