Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin
Globally, coastal waters are considered biogeochemical hotspots because they receive, transform, and integrate materials and waters from both land and the open ocean. Extending from northern California to southeast Alaska, the Northeast Pacific Coastal Temperate Rainforest (NPCTR) region is no excep...
Published in: | Frontiers in Marine Science |
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Language: | English |
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Frontiers Media S.A.
2022
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Online Access: | https://doi.org/10.3389/fmars.2022.863209 https://doaj.org/article/c2f5d448b074412a9a585dc87a27fd84 |
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ftdoajarticles:oai:doaj.org/article:c2f5d448b074412a9a585dc87a27fd84 2023-05-15T16:22:39+02:00 Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin Kyra A. St. Pierre Brian P. V. Hunt Ian J. W. Giesbrecht Suzanne E. Tank Ken P. Lertzman Justin Del Bel Belluz Margot L. Hessing-Lewis Angeleen Olson Tyrel Froese 2022-07-01T00:00:00Z https://doi.org/10.3389/fmars.2022.863209 https://doaj.org/article/c2f5d448b074412a9a585dc87a27fd84 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.863209/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.863209 https://doaj.org/article/c2f5d448b074412a9a585dc87a27fd84 Frontiers in Marine Science, Vol 9 (2022) organic matter coastal connectivity land-to-ocean continuum carbon nitrogen Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.863209 2022-12-30T23:24:30Z Globally, coastal waters are considered biogeochemical hotspots because they receive, transform, and integrate materials and waters from both land and the open ocean. Extending from northern California to southeast Alaska, the Northeast Pacific Coastal Temperate Rainforest (NPCTR) region is no exception to this, and hosts a diversity of watershed types (old-growth rainforest, bog forest, glaciers), and tidal (sheltered, exposed) and pelagic marine (deep fjord, shallow estuary, well-mixed channel) environments. With large freshwater fluxes to the coastal ocean, cross-ecosystem connectivity in the NPCTR is expected to be high, but seasonally variable, with pulses in runoff from rainfall, snowmelt and glacial melt, and primary production associated with changes in ocean upwelling and incident light. However, the relative contribution of each ecosystem to surface ocean organic matter pools over time and space remains poorly constrained, despite their importance for the structure and function of coastal marine ecosystems. Here, we use a four-year dataset of particulate organic matter (POM) chemical composition (δ13C, δ15N, C:N ratio) to quantify the relative contributions of watershed materials via riverine inputs, marine phytoplankton, and macrophytes (macroalgae and seagrass) to surface waters (0-10 m) at 11 stations representing fjord, shallow non-fjord estuary, sheltered channel and well-mixed coastal environments at the heart of the NPCTR in British Columbia, Canada. Watershed, marine phytoplankton, and macrophyte contributions to surficial POM ranged between 5-78%, 22-88%, and 0.1-18%, respectively, and varied by season and station. Watershed inputs were the primary source of POM across all stations in winter and were important throughout the year within the fjord. Marine phytoplankton were the principal source of POM in spring and at all stations outside of the fjord through summer and autumn, while macrophyte contributions were greatest in summer. These results demonstrated high, but seasonally and spatially ... Article in Journal/Newspaper glaciers Alaska Directory of Open Access Journals: DOAJ Articles Canada Pacific British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
organic matter coastal connectivity land-to-ocean continuum carbon nitrogen Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
organic matter coastal connectivity land-to-ocean continuum carbon nitrogen Science Q General. Including nature conservation geographical distribution QH1-199.5 Kyra A. St. Pierre Brian P. V. Hunt Ian J. W. Giesbrecht Suzanne E. Tank Ken P. Lertzman Justin Del Bel Belluz Margot L. Hessing-Lewis Angeleen Olson Tyrel Froese Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
topic_facet |
organic matter coastal connectivity land-to-ocean continuum carbon nitrogen Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Globally, coastal waters are considered biogeochemical hotspots because they receive, transform, and integrate materials and waters from both land and the open ocean. Extending from northern California to southeast Alaska, the Northeast Pacific Coastal Temperate Rainforest (NPCTR) region is no exception to this, and hosts a diversity of watershed types (old-growth rainforest, bog forest, glaciers), and tidal (sheltered, exposed) and pelagic marine (deep fjord, shallow estuary, well-mixed channel) environments. With large freshwater fluxes to the coastal ocean, cross-ecosystem connectivity in the NPCTR is expected to be high, but seasonally variable, with pulses in runoff from rainfall, snowmelt and glacial melt, and primary production associated with changes in ocean upwelling and incident light. However, the relative contribution of each ecosystem to surface ocean organic matter pools over time and space remains poorly constrained, despite their importance for the structure and function of coastal marine ecosystems. Here, we use a four-year dataset of particulate organic matter (POM) chemical composition (δ13C, δ15N, C:N ratio) to quantify the relative contributions of watershed materials via riverine inputs, marine phytoplankton, and macrophytes (macroalgae and seagrass) to surface waters (0-10 m) at 11 stations representing fjord, shallow non-fjord estuary, sheltered channel and well-mixed coastal environments at the heart of the NPCTR in British Columbia, Canada. Watershed, marine phytoplankton, and macrophyte contributions to surficial POM ranged between 5-78%, 22-88%, and 0.1-18%, respectively, and varied by season and station. Watershed inputs were the primary source of POM across all stations in winter and were important throughout the year within the fjord. Marine phytoplankton were the principal source of POM in spring and at all stations outside of the fjord through summer and autumn, while macrophyte contributions were greatest in summer. These results demonstrated high, but seasonally and spatially ... |
format |
Article in Journal/Newspaper |
author |
Kyra A. St. Pierre Brian P. V. Hunt Ian J. W. Giesbrecht Suzanne E. Tank Ken P. Lertzman Justin Del Bel Belluz Margot L. Hessing-Lewis Angeleen Olson Tyrel Froese |
author_facet |
Kyra A. St. Pierre Brian P. V. Hunt Ian J. W. Giesbrecht Suzanne E. Tank Ken P. Lertzman Justin Del Bel Belluz Margot L. Hessing-Lewis Angeleen Olson Tyrel Froese |
author_sort |
Kyra A. St. Pierre |
title |
Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
title_short |
Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
title_full |
Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
title_fullStr |
Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
title_full_unstemmed |
Seasonally and Spatially Variable Organic Matter Contributions From Watershed, Marine Macrophyte, and Pelagic Sources to the Northeast Pacific Coastal Ocean Margin |
title_sort |
seasonally and spatially variable organic matter contributions from watershed, marine macrophyte, and pelagic sources to the northeast pacific coastal ocean margin |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.863209 https://doaj.org/article/c2f5d448b074412a9a585dc87a27fd84 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
Canada Pacific British Columbia |
geographic_facet |
Canada Pacific British Columbia |
genre |
glaciers Alaska |
genre_facet |
glaciers Alaska |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.863209/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.863209 https://doaj.org/article/c2f5d448b074412a9a585dc87a27fd84 |
op_doi |
https://doi.org/10.3389/fmars.2022.863209 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766010662596640768 |