Tracking the effect of temperature in marine demersal fish communities
Under current levels of global warming most demersal species in the Northeast Atlantic are experiencing tropicalization, meridionalization or borealization of their distributions, leading to profound changes in demersal communities. We explore these changes using the Community Weighted Mean Temperat...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-02-01
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| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X20310815 |
| _version_ | 1818400648461287424 |
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| author | Antonio Punzón Lucía López-López José Manuel González-Irusta Izaskun Preciado Manuel Hidalgo Alberto Serrano Elena Tel Raquel Somavilla Julia Polo Marian Blanco Susana Ruiz-Pico Olaya Fernández-Zapico Francisco Velasco Enric Massuti |
| author_facet | Antonio Punzón Lucía López-López José Manuel González-Irusta Izaskun Preciado Manuel Hidalgo Alberto Serrano Elena Tel Raquel Somavilla Julia Polo Marian Blanco Susana Ruiz-Pico Olaya Fernández-Zapico Francisco Velasco Enric Massuti |
| author_sort | Antonio Punzón |
| collection | DOAJ |
| description | Under current levels of global warming most demersal species in the Northeast Atlantic are experiencing tropicalization, meridionalization or borealization of their distributions, leading to profound changes in demersal communities. We explore these changes using the Community Weighted Mean Temperature (CWMT), an index to link the thermal preference of demersal fish communities and temperature. The CWMT is calculated as the summation of the mean temperature of each fish species distribution weighted by its relative abundance in the community. The relative abundance is based on the community composition data obtained by the International Bottom Trawl Surveys (IBTS) in the Southern Bay of Biscay between 1983 and 2015. Our analyses show that the CWMT responds to the actual temperature of the water column reproducing its space–time trends in the study area: (i) an increase from SW to NE, towards the inner Bay of Biscay, (ii) a decrease with depth, except in the SW area characterized by an intense upwelling, (iii) a general increase along the time series. Applying a k-means classification to the CWMT data we identified warm-, temperate- and cold-communities over the shelf and slope and their spatial changes in the last decades. The area occupied by warm communities has expanded 268.4 km2/yr since the 80 s, while the cold communities have retracted at a speed of −155.4 km2/yr. The CWMT was able to capture the community dynamics in relation to environmental temperature at different temporal and spatial scales, highlighting the potential of this index to explore and anticipate the effects of climate change in demersal communities under different scenarios of global warming. |
| first_indexed | 2024-12-14T07:39:55Z |
| format | Article |
| id | doaj.art-d3cf96db1ef7477fa41d73b0783f0aa1 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-12-14T07:39:55Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-d3cf96db1ef7477fa41d73b0783f0aa12022-12-21T23:11:04ZengElsevierEcological Indicators1470-160X2021-02-01121107142Tracking the effect of temperature in marine demersal fish communitiesAntonio Punzón0Lucía López-López1José Manuel González-Irusta2Izaskun Preciado3Manuel Hidalgo4Alberto Serrano5Elena Tel6Raquel Somavilla7Julia Polo8Marian Blanco9Susana Ruiz-Pico10Olaya Fernández-Zapico11Francisco Velasco12Enric Massuti13Instituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, Spain; Corresponding author.Instituto Español de Oceanografía, Centre Oceanografic de Balears, Palma de Mallorca, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centre Oceanografic de Balears, Palma de Mallorca, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Servicios Centrales, Madrid, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centro Oceanográfico de Santander, Santander, SpainInstituto Español de Oceanografía, Centre Oceanografic de Balears, Palma de Mallorca, SpainUnder current levels of global warming most demersal species in the Northeast Atlantic are experiencing tropicalization, meridionalization or borealization of their distributions, leading to profound changes in demersal communities. We explore these changes using the Community Weighted Mean Temperature (CWMT), an index to link the thermal preference of demersal fish communities and temperature. The CWMT is calculated as the summation of the mean temperature of each fish species distribution weighted by its relative abundance in the community. The relative abundance is based on the community composition data obtained by the International Bottom Trawl Surveys (IBTS) in the Southern Bay of Biscay between 1983 and 2015. Our analyses show that the CWMT responds to the actual temperature of the water column reproducing its space–time trends in the study area: (i) an increase from SW to NE, towards the inner Bay of Biscay, (ii) a decrease with depth, except in the SW area characterized by an intense upwelling, (iii) a general increase along the time series. Applying a k-means classification to the CWMT data we identified warm-, temperate- and cold-communities over the shelf and slope and their spatial changes in the last decades. The area occupied by warm communities has expanded 268.4 km2/yr since the 80 s, while the cold communities have retracted at a speed of −155.4 km2/yr. The CWMT was able to capture the community dynamics in relation to environmental temperature at different temporal and spatial scales, highlighting the potential of this index to explore and anticipate the effects of climate change in demersal communities under different scenarios of global warming.http://www.sciencedirect.com/science/article/pii/S1470160X20310815Community Weighted Mean TemperatureTemperatureClimate changeDemersal fish communityTemperate ecosystemThermal niche |
| spellingShingle | Antonio Punzón Lucía López-López José Manuel González-Irusta Izaskun Preciado Manuel Hidalgo Alberto Serrano Elena Tel Raquel Somavilla Julia Polo Marian Blanco Susana Ruiz-Pico Olaya Fernández-Zapico Francisco Velasco Enric Massuti Tracking the effect of temperature in marine demersal fish communities Ecological Indicators Community Weighted Mean Temperature Temperature Climate change Demersal fish community Temperate ecosystem Thermal niche |
| title | Tracking the effect of temperature in marine demersal fish communities |
| title_full | Tracking the effect of temperature in marine demersal fish communities |
| title_fullStr | Tracking the effect of temperature in marine demersal fish communities |
| title_full_unstemmed | Tracking the effect of temperature in marine demersal fish communities |
| title_short | Tracking the effect of temperature in marine demersal fish communities |
| title_sort | tracking the effect of temperature in marine demersal fish communities |
| topic | Community Weighted Mean Temperature Temperature Climate change Demersal fish community Temperate ecosystem Thermal niche |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X20310815 |
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