Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S)
It is relevant to understand the processes and factors that modulate the efficiency of the carbon pump throughout the ecosystem of Patagonian fjords. Spatial variability of primary productivity and bacteria-microplankton biomass was assessed in relation to inorganic nutrients and stratification acro...
Published in: | Arctic, Antarctic, and Alpine Research |
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ftdoajarticles:oai:doaj.org/article:fb23599307444b838b47beded656acea 2023-05-15T13:53:10+02:00 Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) Jose Luis Iriarte Luis Antonio Cuevas Fernanda Cornejo Nelson Silva Humberto E. González Leonardo Castro Paulina Montero Cristian A. Vargas Giovanni Daneri 2018-01-01T00:00:00Z https://doi.org/10.1080/15230430.2018.1525186 https://doaj.org/article/fb23599307444b838b47beded656acea EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2018.1525186 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2018.1525186 https://doaj.org/article/fb23599307444b838b47beded656acea Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) plankton carbon fjords system patagonia primary production freshwater haline stratification Environmental sciences GE1-350 Ecology QH540-549.5 article 2018 ftdoajarticles https://doi.org/10.1080/15230430.2018.1525186 2022-12-31T04:10:54Z It is relevant to understand the processes and factors that modulate the efficiency of the carbon pump throughout the ecosystem of Patagonian fjords. Spatial variability of primary productivity and bacteria-microplankton biomass was assessed in relation to inorganic nutrients and stratification across nearshore zones of southern Patagonia (50–53°S) in austral spring 2009. Estimates of primary productivity (300–500 mg C m−2 d−1) and phytoplankton biomass (9–180 mg chlorophyll-a m−2) were low at offshore and inshore waters. Synergistic effects of low silicic acid concentrations and poor light penetration because of salinity-driven stratification of glacier meltwater in springtime appeared to negatively affect phytoplankton carbon biomass and primary production in this sub-Antarctic region. The knowledge of the relative importance of nutrient sources and light is especially significant for Patagonian glacier-fjord systems that are expected to receive higher freshwater inputs and will be more stratified in the future. Article in Journal/Newspaper Antarc* Antarctic Antarctic and Alpine Research Arctic Directory of Open Access Journals: DOAJ Articles Antarctic Austral Patagonia Arctic, Antarctic, and Alpine Research 50 1 e1525186 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
plankton carbon fjords system patagonia primary production freshwater haline stratification Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
plankton carbon fjords system patagonia primary production freshwater haline stratification Environmental sciences GE1-350 Ecology QH540-549.5 Jose Luis Iriarte Luis Antonio Cuevas Fernanda Cornejo Nelson Silva Humberto E. González Leonardo Castro Paulina Montero Cristian A. Vargas Giovanni Daneri Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
topic_facet |
plankton carbon fjords system patagonia primary production freshwater haline stratification Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
It is relevant to understand the processes and factors that modulate the efficiency of the carbon pump throughout the ecosystem of Patagonian fjords. Spatial variability of primary productivity and bacteria-microplankton biomass was assessed in relation to inorganic nutrients and stratification across nearshore zones of southern Patagonia (50–53°S) in austral spring 2009. Estimates of primary productivity (300–500 mg C m−2 d−1) and phytoplankton biomass (9–180 mg chlorophyll-a m−2) were low at offshore and inshore waters. Synergistic effects of low silicic acid concentrations and poor light penetration because of salinity-driven stratification of glacier meltwater in springtime appeared to negatively affect phytoplankton carbon biomass and primary production in this sub-Antarctic region. The knowledge of the relative importance of nutrient sources and light is especially significant for Patagonian glacier-fjord systems that are expected to receive higher freshwater inputs and will be more stratified in the future. |
format |
Article in Journal/Newspaper |
author |
Jose Luis Iriarte Luis Antonio Cuevas Fernanda Cornejo Nelson Silva Humberto E. González Leonardo Castro Paulina Montero Cristian A. Vargas Giovanni Daneri |
author_facet |
Jose Luis Iriarte Luis Antonio Cuevas Fernanda Cornejo Nelson Silva Humberto E. González Leonardo Castro Paulina Montero Cristian A. Vargas Giovanni Daneri |
author_sort |
Jose Luis Iriarte |
title |
Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
title_short |
Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
title_full |
Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
title_fullStr |
Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
title_full_unstemmed |
Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S) |
title_sort |
low spring primary production and microplankton carbon biomass in sub-antarctic patagonian channels and fjords (50–53°s) |
publisher |
Taylor & Francis Group |
publishDate |
2018 |
url |
https://doi.org/10.1080/15230430.2018.1525186 https://doaj.org/article/fb23599307444b838b47beded656acea |
geographic |
Antarctic Austral Patagonia |
geographic_facet |
Antarctic Austral Patagonia |
genre |
Antarc* Antarctic Antarctic and Alpine Research Arctic |
genre_facet |
Antarc* Antarctic Antarctic and Alpine Research Arctic |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) |
op_relation |
http://dx.doi.org/10.1080/15230430.2018.1525186 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2018.1525186 https://doaj.org/article/fb23599307444b838b47beded656acea |
op_doi |
https://doi.org/10.1080/15230430.2018.1525186 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
container_start_page |
e1525186 |
_version_ |
1766258142093508608 |