Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change
Abstract Sea urchin grazing rates can strongly impact kelp bed persistence. Elevated water temperature associated with climate change may increase grazing rates; however, these effects may interact with local stressors such as sedimentation, which may inhibit grazing. In Alaska, glacial melt is incr...
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Springer Science and Business Media LLC
2019
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crspringernat:10.1186/s10152-019-0526-x 2023-05-15T16:57:47+02:00 Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change Traiger, Sarah B. University of Alaska Fairbanks Global Change Student Grant Cooperative Institute for Alaska Research 2019 http://dx.doi.org/10.1186/s10152-019-0526-x http://link.springer.com/content/pdf/10.1186/s10152-019-0526-x.pdf http://link.springer.com/article/10.1186/s10152-019-0526-x/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Helgoland Marine Research volume 73, issue 1 ISSN 1438-387X 1438-3888 Aquatic Science Oceanography journal-article 2019 crspringernat https://doi.org/10.1186/s10152-019-0526-x 2022-01-04T15:18:10Z Abstract Sea urchin grazing rates can strongly impact kelp bed persistence. Elevated water temperature associated with climate change may increase grazing rates; however, these effects may interact with local stressors such as sedimentation, which may inhibit grazing. In Alaska, glacial melt is increasing with climate change, resulting in higher sedimentation rates, which are often associated with lower grazer abundance and shifts in macroalgal species composition. The short-term effects of elevated temperature and sediment on grazing were investigated for the green sea urchin, Strongylocentrotus droebachiensis (O.F. Müller, 1776), in Kachemak Bay, Alaska (59° 37′ 45.00″ N, 151° 36′ 38.40″ W) in early May 2017. Feeding assays were conducted at ambient temperature (6.9–9.8 °C) and at 13.8–14.6 °C with no sediment and under a high sediment load. Grazing rates significantly decreased in the presence of sediment, but were not significantly affected by temperature. Along with sediment impacts on settlement and post-settlement survival, grazing inhibition may contribute to the commonly observed pattern of decreased macroinvertebrate grazer abundance in areas of high sedimentation and increased sedimentation in the future may alter sea urchin grazing in kelp forests. Article in Journal/Newspaper Kachemak Alaska Springer Nature (via Crossref) Helgoland Marine Research 73 1 |
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Springer Nature (via Crossref) |
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English |
topic |
Aquatic Science Oceanography |
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Aquatic Science Oceanography Traiger, Sarah B. Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
topic_facet |
Aquatic Science Oceanography |
description |
Abstract Sea urchin grazing rates can strongly impact kelp bed persistence. Elevated water temperature associated with climate change may increase grazing rates; however, these effects may interact with local stressors such as sedimentation, which may inhibit grazing. In Alaska, glacial melt is increasing with climate change, resulting in higher sedimentation rates, which are often associated with lower grazer abundance and shifts in macroalgal species composition. The short-term effects of elevated temperature and sediment on grazing were investigated for the green sea urchin, Strongylocentrotus droebachiensis (O.F. Müller, 1776), in Kachemak Bay, Alaska (59° 37′ 45.00″ N, 151° 36′ 38.40″ W) in early May 2017. Feeding assays were conducted at ambient temperature (6.9–9.8 °C) and at 13.8–14.6 °C with no sediment and under a high sediment load. Grazing rates significantly decreased in the presence of sediment, but were not significantly affected by temperature. Along with sediment impacts on settlement and post-settlement survival, grazing inhibition may contribute to the commonly observed pattern of decreased macroinvertebrate grazer abundance in areas of high sedimentation and increased sedimentation in the future may alter sea urchin grazing in kelp forests. |
author2 |
University of Alaska Fairbanks Global Change Student Grant Cooperative Institute for Alaska Research |
format |
Article in Journal/Newspaper |
author |
Traiger, Sarah B. |
author_facet |
Traiger, Sarah B. |
author_sort |
Traiger, Sarah B. |
title |
Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
title_short |
Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
title_full |
Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
title_fullStr |
Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
title_full_unstemmed |
Effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
title_sort |
effects of elevated temperature and sedimentation on grazing rates of the green sea urchin: implications for kelp forests exposed to increased sedimentation with climate change |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1186/s10152-019-0526-x http://link.springer.com/content/pdf/10.1186/s10152-019-0526-x.pdf http://link.springer.com/article/10.1186/s10152-019-0526-x/fulltext.html |
genre |
Kachemak Alaska |
genre_facet |
Kachemak Alaska |
op_source |
Helgoland Marine Research volume 73, issue 1 ISSN 1438-387X 1438-3888 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/s10152-019-0526-x |
container_title |
Helgoland Marine Research |
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73 |
container_issue |
1 |
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1766049413223940096 |