Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2024
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.967056 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867170124060950528 |
|---|---|
| author | Miller, Cale A Gazeau, Frédéric Lebrun, Anaïs Gattuso, Jean-Pierre Alliouane, Samir Urrutti, Pierre Schlegel, Robert Comeau, Steeve |
| author_facet | Miller, Cale A Gazeau, Frédéric Lebrun, Anaïs Gattuso, Jean-Pierre Alliouane, Samir Urrutti, Pierre Schlegel, Robert Comeau, Steeve |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Arctic marine ecosystems are experiencing rapid environmental changes with respect to warming, ice melt, and terrestrial run-off. The effects of these perturbations can act as multi-stressors where warming sea seawater, in combination with freshening from ice melt, and increased turbidity from terrestrial run-off affect benthic community structure and function. To examine the effects of warming, freshening, and turbidity on habitat forming macroalgae, we conducted a 2-month long ex situ experiment on mixed Arctic kelp communities in Ny-Ålesund, Svalbard from 03/07/2021 - 26/08/2021. Three experimental conditions (with 3x replicates) were tested against a dynamic real-time control where temperature was increased by + 3.3 and + 5.3 °C, salinity was reduced by ~ 4 and ~ 5, and irradiance was statically attenuated by ~ 25 and 40 % in 2 treatments. The third treatment was only warmed by + 5.3 °C from the control. In each 1 m³ mesocosm, oxygen (% O2), temperature, salinity, and photosynthetically active radiation (PAR) were continuously monitored. Mixed kelp communities comprised a biomass of ~ 4 kg fw (fresh weight) and ~ 500 g fw of small fauna. Weekly incubations were performed to calculate net community productivity (NCP) and used to estimate kelp benthic metabolism. We determined non-significant differences across treatments and provide NCP rates for mixed kelp communities in the Arctic. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_967056 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Net community production of Arctic mixed kelp communities in response to warming, freshening, and attenuated light: a mesocosm study as per minute record Miller, Cale A Gazeau, Frédéric Lebrun, Anaïs Gattuso, Jean-Pierre Alliouane, Samir Urrutti, Pierre Schlegel, Robert Comeau, Steeve Arctic Biodiversity & Livelihoods; Climate change; Conductivity digital sensor, Aqualabo, PC4E; Date/time analysis, experiment; ecosystems; Experiment; FACE-IT; Incubation duration; Kelp; MESO; Mesocosm experiment; multi-stressors; Net community production; Ny_Ålesund_Mesocosm_2021; Ny-Ålesund, Spitsbergen; Oxygen; Oxygen Optical digital sensor, Aqualabo, PODOC; Photosynthetic Active Radiation Logger (PAR), Odyssey®; Radiation, photosynthetically active; Replicates; Treatment; Treatment: salinity; Treatment: temperature Arctic marine ecosystems are experiencing rapid environmental changes with respect to warming, ice melt, and terrestrial run-off. The effects of these perturbations can act as multi-stressors where warming sea seawater, in combination with freshening from ice melt, and increased turbidity from terrestrial run-off affect benthic community structure and function. To examine the effects of warming, freshening, and turbidity on habitat forming macroalgae, we conducted a 2-month long ex situ experiment on mixed Arctic kelp communities in Ny-Ålesund, Svalbard from 03/07/2021 - 26/08/2021. Three experimental conditions (with 3x replicates) were tested against a dynamic real-time control where temperature was increased by + 3.3 and + 5.3 °C, salinity was reduced by ~ 4 and ~ 5, and irradiance was statically attenuated by ~ 25 and 40 % in 2 treatments. The third treatment was only warmed by + 5.3 °C from the control. In each 1 m³ mesocosm, oxygen (% O2), temperature, salinity, and photosynthetically active radiation (PAR) were continuously monitored. Mixed kelp communities comprised a biomass of ~ 4 kg fw (fresh weight) and ~ 500 g fw of small fauna. Weekly incubations were performed to calculate net community productivity (NCP) and used to estimate kelp benthic metabolism. We determined non-significant differences across treatments and provide NCP rates for mixed kelp communities in the Arctic. |
| title | Net community production of Arctic mixed kelp communities in response to warming, freshening, and attenuated light: a mesocosm study as per minute record |
| topic | Arctic Biodiversity & Livelihoods; Climate change; Conductivity digital sensor, Aqualabo, PC4E; Date/time analysis, experiment; ecosystems; Experiment; FACE-IT; Incubation duration; Kelp; MESO; Mesocosm experiment; multi-stressors; Net community production; Ny_Ålesund_Mesocosm_2021; Ny-Ålesund, Spitsbergen; Oxygen; Oxygen Optical digital sensor, Aqualabo, PODOC; Photosynthetic Active Radiation Logger (PAR), Odyssey®; Radiation, photosynthetically active; Replicates; Treatment; Treatment: salinity; Treatment: temperature |
| url | https://doi.org/10.1594/PANGAEA.967056 |