Combining literature-based and data-driven fuzzy models to predict brown trout (Salmo trutta L.) spawning habitat degradation induced by climate change

Muñoz‐Mas, Rafael; Marcos-García, Patricia; Lopez-Nicolas, Antonio; Martínez-García, Francisco J.; Pulido-Velázquez, Manuel; Martínez‐Capel, Francisco

doi:10.1016/j.ecolmodel.2018.08.012

Cited by 22 publications

(11 citation statements)

References 110 publications

(186 reference statements)

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“…The effect of the WUA and HHS when the reservoir inflow is equal to outflow. A total of eight scenarios (20,40,60,80,100,120,140, and 160 m 3 /s) were simulated for the same reservoir inflow and outflow. The habitat ecological suitability is the best when the reservoir outflow is 120 m 3 /s.…”

Section: Suitable Ecological Flow Discussionmentioning

confidence: 99%

“…CE-QUAL-W2 simulated the water temperature stratification of reservoirs under different inflows and outflows. The simulation results of velocity, water depth, and water temperature were used to construct a fuzzy model [31,40] to comprehensively analyze the effects of the three factors on C. idella spawning. The simulation results of the fuzzy logic-based habitat suitability model were analyzed and evaluated by WUA and HHS, and the best flow management scenario in the study area was finally obtained.…”

Section: Model Frameworkmentioning

confidence: 99%

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Analysis of an Ecological Flow Regime during the Ctenopharyngodon Idella Spawning Period Based on Reservoir Operations

Qin

Pei

et al. 2019

Water

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The study of fish habitats is important for us to better understand the impact of reservoir construction on river ecosystems. Many habitat models have been developed in the past few decades. In this study, a fuzzy logic-based habitat model, which couples fuzzy inference system, two-dimensional laterally averaged hydrodynamic model, and two-dimensional shallow water hydrodynamic model, is proposed to identify the baseline condition of suitable habitat for fish spawning activities. The proposed model considers the reservoir and the downstream river channel, and explores the comprehensive effects of water temperature, velocity, and water depth on habitat suitability. A real-world case that considers the Ctenopharyngodon idella in the Xuanwei Reservoir of Qingshui River is studied to investigate the effect of in- and outflow of reservoir on fish habitat and the best integrative management measure of the model. There were 64 simulations with different reservoir in- and outflows employed to calculate the weighted usable area and hydraulic habitat suitability. The experimental results show that the ecological flow for Ctenopharyngodon idella spawning can satisfy the basic demand when the reservoir inflow is greater than 60 m3/s and the reservoir outflow is greater than 100 m3/s. The habitat ecological suitability is the best when the reservoir outflow is 120 m3/s. A more reasonable and reliable ecological flow range can be obtained based on the habitat model in this paper, which provides the best scenario for water resources planning and management in the Qingshui River Basin.

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Section: Suitable Ecological Flow Discussionmentioning

confidence: 99%

Section: Model Frameworkmentioning

confidence: 99%

Analysis of an Ecological Flow Regime during the Ctenopharyngodon Idella Spawning Period Based on Reservoir Operations

Qin

Pei

et al. 2019

Water

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“…Mouton et al, ; Muñoz‐Mas, Papadaki et al, ; Theodoropoulos et al, ). FRBSs are accurate and interpretable models because their accuracy is not at the expense of complex mathematical structures (Muñoz‐Mas, Marcos‐Garcia et al, ). Their simplicity allows experts to modify the resulting FRBSs to cover a wider range of environmental conditions and/or variables (Mouton et al, ; Muñoz‐Mas, Marcos‐Garcia et al, ).…”

Section: Methodsmentioning

confidence: 99%

“…FRBSs are accurate and interpretable models because their accuracy is not at the expense of complex mathematical structures (Muñoz‐Mas, Marcos‐Garcia et al, ). Their simplicity allows experts to modify the resulting FRBSs to cover a wider range of environmental conditions and/or variables (Mouton et al, ; Muñoz‐Mas, Marcos‐Garcia et al, ). This emphasises the usefulness of fuzzy logic to deal with the vague, imprecise and scarce data, typical of impoverished or extirpated freshwater fish populations (Muñoz‐Mas, Papadaki et al, ).…”

Section: Methodsmentioning

confidence: 99%

“…This emphasises the usefulness of fuzzy logic to deal with the vague, imprecise and scarce data, typical of impoverished or extirpated freshwater fish populations (Muñoz‐Mas, Papadaki et al, ). Here, presence–absence 0‐order Takagi–Sugeno–Kang (TSK) fuzzy models were developed to explore the species‐specific habitat preferences (Takagi & Sugeno, ) using the R program (see Muñoz‐Mas, Marcos‐Garcia et al, ).…”

Section: Methodsmentioning

confidence: 99%

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Microhabitat preferences of fish assemblages in the Udzungwa Mountains (Eastern Africa)

Muñoz‐Mas

Sánchez‐Hernández

Martínez‐Capel

et al. 2019

Ecology of Freshwater Fish

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Environmental flow assessment (EFA) involving microhabitat preference models is a common approach to set ecologically friendly flow regimes in territories with ongoing or planned projects to develop river basins, such as many rivers of Eastern Africa. However, habitat requirements of many African fish species are poorly studied, which may impair EFAs. This study investigated habitat preferences of fish assemblages, based on species presence–absence data from 300 microhabitats collected in two tributaries of the Kilombero River (Tanzania), aiming to disentangle differences in habitat preferences of African species at two levels: assemblage (i.e. between tributaries) and species (i.e. species‐specific habitat preferences). Overall, flow velocity, which implies coarser substrates and shallower microhabitats, emerged as the most important driver responsible of the changes in stream‐dwelling assemblages at the microhabitat scale. At the assemblage level, we identified two important groups of species according to habitat preferences: (a) cover‐orientated and limnophilic species, including Barbus spp., Mormyridae and Chiloglanis deckenii, and (b) rheophilic species, including Labeo cylindricus, Amphilius uranoscopus and Parakneria spekii. Rheophilic species preferred boulders, fast flow velocity and deeper microhabitats. At the species level, we identified species‐specific habitat preferences. For instance, Barbus spp. preferred low flow velocity shallow depth and fine‐to‐medium substratum, whereas L. cylindricus and P. spekii mainly selected shallow microhabitats with coarse substrata. Knowledge of habitat preferences of these assemblages and species should enhance the implementation of ongoing and future EFA studies of the region.

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Effects of climate change on the life stages of stream‐dwelling brown trout (Salmo trutta Linnaeus, 1758) at the rear edge of their native distribution range

et al. 2020

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Streamflow and temperature regimes are key components of the physical habitats of instream biological communities. Iberian brown trout (Salmo trutta) populations exist in a climatic border where water scarcity and increasing water temperatures during summer could compromise their viability throughout the 21st century. We predicted climate change-induced modifications in the thermal and hydraulic habitats of both the intragravel (eggs and larvae) and free-swimming (fry, juveniles and adults) stages of brown trout in two mountain streams in central Spain. Spatial-temporal simulations of thermal and hydraulic habitats under two climate change emission scenarios-representative concentration pathway (RCP) 4.5 (mild scenario) and RCP 8.5 (pessimistic)-were conducted at 1-m altitudinal steps using daily air temperature and streamflow predictions. Increased winter temperatures will reduce embryo and larval development time by 12% (RCP 4.5) and 30% (RCP 8.5) in downstream sites by end of the 21st century, but this reduction might be insufficient to compensate for the shortening of the period with temperatures below the viability limits for survival of intragravel phase (20% and 54%, respectively). Combining streamflow and temperature data for free-swimming stages indicated that the suitable summer habitat will be reduced by between 53% and 76% (RCP 4.5) and 70%-90% (RCP 8.5) by 2099. The predicted effects for all developmental stages are critical for determining population viability at both ends of its altitudinal distribution. However, these responses are river-specific, as limiting factors differ among rivers.

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Combining literature-based and data-driven fuzzy models to predict brown trout (Salmo trutta L.) spawning habitat degradation induced by climate change

Abstract: Combining literature-based and data-driven fuzzy models to predict brown trout (salmo trutta l.) spawning habitat degradation induced by climate change. Ecological Modelling. 386:98-114.

Cited by 22 publications

References 110 publications

Analysis of an Ecological Flow Regime during the Ctenopharyngodon Idella Spawning Period Based on Reservoir Operations

Analysis of an Ecological Flow Regime during the Ctenopharyngodon Idella Spawning Period Based on Reservoir Operations

Microhabitat preferences of fish assemblages in the Udzungwa Mountains (Eastern Africa)

Effects of climate change on the life stages of stream‐dwelling brown trout (Salmo trutta Linnaeus, 1758) at the rear edge of their native distribution range

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