Marine and Freshwater Research http://dx.doi.org/10.1071/MF17193_AC
© CSIRO 2018
Supplementary material
Spatiotemporal variation in the structure of reef fish and macroalgal assemblages in a north-east Atlantic kelp forest ecosystem: implications for the management of temperate rocky reefs Pablo PitaA,D, Diana Fernández-MárquezB and Juan FreireC A
Department of Applied Economics, Faculty of Economics and Business Administration,
University of Santiago de Compostela, Avenida Burgo das Nacións s/n, E-15782 Santiago de Compostela, Spain. B
Servizo de Competitividade e Innovación Tecnolóxica, Dirección Xeral de Desenvolvemento
Pesqueiro, Xefatura Territorial da Coruña, Consellería do Mar, Rúa Juan Canalejo, 2, E-15006 A Coruña, Spain. C
Teamlabs, Duque de Alba 15, E-28012 Madrid, Spain.
D
Corresponding author. Email:
[email protected]
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Marine and Freshwater Research http://dx.doi.org/10.1071/MF17193_AC
© CSIRO 2018
Table S1. Pearson’s correlation coefficients of the variables studied in the 146 fish-UVC (Fish) and in the 1200 frames of 24 macroalgae-UVC (Macr.) Variable Exposure Depth Slope Large rocks Medium rocks Low rocks Boulders Gravel Coarse sand Fine sand
Zone Fish Macr. –0.061 0.000 0.094 0.325 – –0.170 –0.277 –0.154 0.477 –0.349 0.134 0.427 –0.103 0.071 –0.390 –0.441 –0.290 –0.066 0.405 –0.229
Exposure Fish Macr. 0.541 – 0.830 –0.532 –0.696 0.114 –0.490 –0.700 –0.672
0.575 0.404 0.616 –0.241 –0.452 –0.042 –0.195 0.115 –0.229
Depth Fish Macr. – 0.427 –0.219 –0.390 0.191 –0.352 –0.502 –0.343
0.382 0.364 –0.055 –0.233 0.192 –0.340 –0.181 –0.238
Slope Fish Macr.
– – – – – – –
0.458 0.153 –0.501 –0.094 –0.195 –0.185 –0.157
Large rocks Fish Macr.
–0.869 –0.653 0.005 –0.274 –0.475 –0.648
–0.291 –0.755 –0.095 0.099 0.008 –0.192
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Medium rocks Fish Macr.
0.352 0.147 –0.204 0.036 0.645
–0.315 0.017 –0.154 –0.171 –0.080
Low rocks Fish Macr.
–0.238 0.472 0.462 0.245
0.131 –0.083 –0.115 0.114
Boulders Fish Macr.
–0.435 –0.460 0.157
–0.129 –0.137 –0.067
Gravel Coarse sand Fish Macr. Fish Macr.
0.921 0.222 –0.112 0.122 0.147 –0.112
Marine and Freshwater Research http://dx.doi.org/10.1071/MF17193_AC
© CSIRO 2018
Table S2. Response and significant explanatory variables, error and link structure, explained deviance and degrees of freedom (d.f.) of the GAM fitted on the fish abundances and on the relative abundances of the functional groups of macroalgae Response variables that were not transformed by the square root are shown with an asterisk Species Covariates Boops boops Zone + Season + Large rocks + Low rocks Dicentrarchus labrax Depth + Boulders + Coarse sand Diplodus sargus Year + Season + Depth + Large rocks + Medium rocks Diplodus vulgaris Year + Zone + Season + Large rocks + Medium rocks + Boulders Labrus bergylta Year + Zone + Season + Depth + Large rocks + Medium rocks + Low rocks + Boulders Labrus mixtus Season + Depth Mugilidae spp. Year + Zone + Gravel Mullus surmuletus Year + Season + Fine sand Pollachius pollachius Year + Depth + Low rock + Coarse sand Serranus cabrilla Year + Zone + Season + Depth Spondyliosoma cantharus Zone + Season + Exposure + Large rocks + Medium rocks + Boulders + Coarse sand Trisopterus luscus Zone + Depth + Boulders Tree-like* Zone + Exposure + Depth + Slope + Low rocks + Boulders + Gravel + Coarse sand Bush-like* Zone + Exposure + Season + Depth + Slope + Low rocks + Boulders + Gravel + Coarse sand + Fine sand Grass-like* Zone + Exposure + Season + Depth + Slope + Low rocks + Boulders + Gravel + Coarse sand + Fine sand
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Error Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian Gaussian
Link Deviance (%) Identity 36.90 Identity 12.30 Identity 35.80 Identity 37.10 Identity 60.70 Identity 25.10 Identity 9.60 Identity 18.00 Identity 36.70 Identity 30.40 Identity 57.30 Identity 20.10 Identity 70.40 Identity 72.40 Identity 74.20
df 6.64 4.61 6.72 10.07 10.10 9.53 3.80 6.53 6.97 7.69 10.57 4.34 19.32 22.57 21.99
Marine and Freshwater Research http://dx.doi.org/10.1071/MF17193_AC
© CSIRO 2018
Table S3. Output of the GAM fitted on the fish abundances The estimated parametric coefficients, their standard error and the P-value are shown. The degrees of freedom (d.f.) and the P-value of the smooth terms are also indicated Model Boops boops Zone: Mera – Portiño Season: Autumn–Spring Season: Spring–Summer Season: Spring–Winter Large rocks Low rocks Dicentrarchus labrax Depth Boulders Coarse sand Diplodus sargus Year Season: Autumn–Spring Season: Autumn–Summer Season: Autumn–Winter Depth Large rocks Medium rocks Diplodus vulgaris Year Zone: Mera – Portiño Season: Autumn–Spring Large rocks Medium rocks Boulders Labrus bergylta Year Zone: Mera – Portiño Season: Autumn–Summer Season: Spring–Summer Season: Spring–Winter Season: Summer–Winter Depth Large rocks Medium rocks Low rocks Boulders Labrus mixtus Season: Autumn–Summer Season: Spring–Summer Season: Summer–Winter Depth Mugilidae spp. Year Zone: Mera – Portiño Gravel
Parametric coefficients Estimate
P
Smooth terms d.f.
20.940 ± 2.8330 –13.3750 ± 3.370 11.6790 ± 3.2680 8.6880 ± 3.6110 – –
