Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry

In situ primary productivity(PP)in the Sub-Antarctic Zone(SAZ)and the Polar Frontal Zone (PFZ)south of Australia was estimated using fast repetition rate fluorometry(FRRF).FRRF-derived PP at Process station 3(P3)southeast of Tasmania(461S, 1531E) were higher than P1inthe southwest of Tasmania(461S,...

Full description

Bibliographic Details
Published in:Deep Sea Research Part II: Topical Studies in Oceanography
Main Authors: Cheah, W, McMinn, A, Griffiths, FB, Westwood, KJ, Wright, SW, Molina, E, Webb, JP, van den Enden, R
Format: Article in Journal/Newspaper
Language:English
Published: Pergamon-Elsevier Science Ltd 2011
Subjects:
Online Access:https://doi.org/10.1016/j.dsr2.2011.05.023
http://ecite.utas.edu.au/75597
id ftunivtasecite:oai:ecite.utas.edu.au:75597
record_format openpolar
spelling ftunivtasecite:oai:ecite.utas.edu.au:75597 2023-05-15T14:02:30+02:00 Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry Cheah, W McMinn, A Griffiths, FB Westwood, KJ Wright, SW Molina, E Webb, JP van den Enden, R 2011 application/pdf https://doi.org/10.1016/j.dsr2.2011.05.023 http://ecite.utas.edu.au/75597 en eng Pergamon-Elsevier Science Ltd http://ecite.utas.edu.au/75597/1/Deep-Sea_Research_Part_II_2011_Cheah.pdf http://dx.doi.org/10.1016/j.dsr2.2011.05.023 Cheah, W and McMinn, A and Griffiths, FB and Westwood, KJ and Wright, SW and Molina, E and Webb, JP and van den Enden, R, Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry, Deep-Sea Research. Part 2: Topical Studies in Oceanography, 58, (21-22) pp. 2179-2188. ISSN 0967-0645 (2011) [Refereed Article] http://ecite.utas.edu.au/75597 Earth Sciences Oceanography Biological Oceanography Refereed Article PeerReviewed 2011 ftunivtasecite https://doi.org/10.1016/j.dsr2.2011.05.023 2019-12-13T21:42:12Z In situ primary productivity(PP)in the Sub-Antarctic Zone(SAZ)and the Polar Frontal Zone (PFZ)south of Australia was estimated using fast repetition rate fluorometry(FRRF).FRRF-derived PP at Process station 3(P3)southeast of Tasmania(461S, 1531E) were higher than P1inthe southwest of Tasmania(461S, 1401E) and P2 in the Polar Frontal Zone (541S, 1461E). The FRRF-derived PP rates were wellcorrelated with 14C-uptake rates fromone-hour incubations(r20.85,slope1.2370.05, po0.01,n85) but the relationship between both methods differed vertically and spatially. There was a linearrelationship between FRRF-based PP and 14C-based PP underlight-limited conditions in deeper waters.Under light-saturated conditions near the surface(045m),the relationship was less clear. This waslikely associated with the effects of physiological processes such as cyclic electron flow and the Mehlerreaction, which are stimulated at high irradiance. Our results indicate that FRRF can be used to estimatephotosynthesis rates in the SAZ and PFZ but to derive an accurate estimation of C-fixation requires adetailed understanding of the physiological properties of the cells and their response to oceanographicparameters under different environmental conditions. Article in Journal/Newspaper Antarc* Antarctic eCite UTAS (University of Tasmania) Antarctic Deep Sea Research Part II: Topical Studies in Oceanography 58 21-22 2179 2188
institution Open Polar
collection eCite UTAS (University of Tasmania)
op_collection_id ftunivtasecite
language English
topic Earth Sciences
Oceanography
Biological Oceanography
spellingShingle Earth Sciences
Oceanography
Biological Oceanography
Cheah, W
McMinn, A
Griffiths, FB
Westwood, KJ
Wright, SW
Molina, E
Webb, JP
van den Enden, R
Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
topic_facet Earth Sciences
Oceanography
Biological Oceanography
description In situ primary productivity(PP)in the Sub-Antarctic Zone(SAZ)and the Polar Frontal Zone (PFZ)south of Australia was estimated using fast repetition rate fluorometry(FRRF).FRRF-derived PP at Process station 3(P3)southeast of Tasmania(461S, 1531E) were higher than P1inthe southwest of Tasmania(461S, 1401E) and P2 in the Polar Frontal Zone (541S, 1461E). The FRRF-derived PP rates were wellcorrelated with 14C-uptake rates fromone-hour incubations(r20.85,slope1.2370.05, po0.01,n85) but the relationship between both methods differed vertically and spatially. There was a linearrelationship between FRRF-based PP and 14C-based PP underlight-limited conditions in deeper waters.Under light-saturated conditions near the surface(045m),the relationship was less clear. This waslikely associated with the effects of physiological processes such as cyclic electron flow and the Mehlerreaction, which are stimulated at high irradiance. Our results indicate that FRRF can be used to estimatephotosynthesis rates in the SAZ and PFZ but to derive an accurate estimation of C-fixation requires adetailed understanding of the physiological properties of the cells and their response to oceanographicparameters under different environmental conditions.
format Article in Journal/Newspaper
author Cheah, W
McMinn, A
Griffiths, FB
Westwood, KJ
Wright, SW
Molina, E
Webb, JP
van den Enden, R
author_facet Cheah, W
McMinn, A
Griffiths, FB
Westwood, KJ
Wright, SW
Molina, E
Webb, JP
van den Enden, R
author_sort Cheah, W
title Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
title_short Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
title_full Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
title_fullStr Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
title_full_unstemmed Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry
title_sort assessing sub-antarctic zone primary productivity from fast repetition rate fluorometry
publisher Pergamon-Elsevier Science Ltd
publishDate 2011
url https://doi.org/10.1016/j.dsr2.2011.05.023
http://ecite.utas.edu.au/75597
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_relation http://ecite.utas.edu.au/75597/1/Deep-Sea_Research_Part_II_2011_Cheah.pdf
http://dx.doi.org/10.1016/j.dsr2.2011.05.023
Cheah, W and McMinn, A and Griffiths, FB and Westwood, KJ and Wright, SW and Molina, E and Webb, JP and van den Enden, R, Assessing Sub-Antarctic Zone primary productivity from fast repetition rate fluorometry, Deep-Sea Research. Part 2: Topical Studies in Oceanography, 58, (21-22) pp. 2179-2188. ISSN 0967-0645 (2011) [Refereed Article]
http://ecite.utas.edu.au/75597
op_doi https://doi.org/10.1016/j.dsr2.2011.05.023
container_title Deep Sea Research Part II: Topical Studies in Oceanography
container_volume 58
container_issue 21-22
container_start_page 2179
op_container_end_page 2188
_version_ 1766272783110635520