Seabird guano enhances phytoplankton production in the Southern Ocean
Six incubation experiments were carried out to investigate the phytoplankton biomass response to seabirdguano-enrichment under different nutrient regimes. Study locations included Antarctic waters of the Ross Seaand sub-Antarctic waters offshore of the Otago Peninsula, both being characterized by ir...
Published in: | Journal of Experimental Marine Biology and Ecology |
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Online Access: | https://doi.org/10.1016/j.jembe.2016.07.004 http://ecite.utas.edu.au/113759 |
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ftunivtasecite:oai:ecite.utas.edu.au:113759 2023-05-15T13:49:03+02:00 Seabird guano enhances phytoplankton production in the Southern Ocean Shatova, O Wing, SR Gault-Ringold, M Wing, L Hoffmann, LJ 2016 https://doi.org/10.1016/j.jembe.2016.07.004 http://ecite.utas.edu.au/113759 en eng Elsevier Science Bv http://dx.doi.org/10.1016/j.jembe.2016.07.004 Shatova, O and Wing, SR and Gault-Ringold, M and Wing, L and Hoffmann, LJ, Seabird guano enhances phytoplankton production in the Southern Ocean, Journal of Experimental Marine Biology and Ecology, 483 pp. 74-87. ISSN 0022-0981 (2016) [Refereed Article] http://ecite.utas.edu.au/113759 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Refereed Article PeerReviewed 2016 ftunivtasecite https://doi.org/10.1016/j.jembe.2016.07.004 2019-12-14T07:05:01Z Six incubation experiments were carried out to investigate the phytoplankton biomass response to seabirdguano-enrichment under different nutrient regimes. Study locations included Antarctic waters of the Ross Seaand sub-Antarctic waters offshore of the Otago Peninsula, both being characterized by iron limitation of phytoplanktonproductivity in summer, the Sub-Tropical Frontal Zone offshore of the Snares Islands,which is generallymicronutrient-replete, and the island wakewaters of the Snares Islands,which have a high nutrient supply fromland. In all of the experiments the increase of phytoplankton biomass was higher in the treatments with guanoaddition compared to the controls. Guano additions were compared to Fe and macronutrients treatments(both added in quantities similar to those in the guano treatment) to shed light on which constituent(s) ofguano are responsible for the observed increases in phytoplankton biomass. Macronutrients increased the phytoplanktonbiomass in the Sub-Tropical Frontal Zone, however, the response was less prominent than in theGuano treatment, suggesting synergetic effects of nutrients in seabird guano on phytoplankton production. Itwas also found that the pattern of response varied between the water masses with 610 days lag phase in theSub-Antarcticwater mass and no lag phase in Sub-Tropical Frontal Zone. The calculations presented here suggestthat micro- and macronutrients delivered from seabird colonies on some of the sub-Antarctic islands may providea significant amount of limiting nutrients to the nutrient budget of the surrounding coastal waters, potentiallysufficient to sustain a local phytoplankton bloom. Findings of the present study indicate that biologicalrecycling of nutrients by seabirds likely supports marine primary production and enhances productivity of associatedfood webs in the vicinity of islands. Article in Journal/Newspaper Antarc* Antarctic Snares Islands Southern Ocean eCite UTAS (University of Tasmania) Antarctic Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Southern Ocean Journal of Experimental Marine Biology and Ecology 483 74 87 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Shatova, O Wing, SR Gault-Ringold, M Wing, L Hoffmann, LJ Seabird guano enhances phytoplankton production in the Southern Ocean |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
Six incubation experiments were carried out to investigate the phytoplankton biomass response to seabirdguano-enrichment under different nutrient regimes. Study locations included Antarctic waters of the Ross Seaand sub-Antarctic waters offshore of the Otago Peninsula, both being characterized by iron limitation of phytoplanktonproductivity in summer, the Sub-Tropical Frontal Zone offshore of the Snares Islands,which is generallymicronutrient-replete, and the island wakewaters of the Snares Islands,which have a high nutrient supply fromland. In all of the experiments the increase of phytoplankton biomass was higher in the treatments with guanoaddition compared to the controls. Guano additions were compared to Fe and macronutrients treatments(both added in quantities similar to those in the guano treatment) to shed light on which constituent(s) ofguano are responsible for the observed increases in phytoplankton biomass. Macronutrients increased the phytoplanktonbiomass in the Sub-Tropical Frontal Zone, however, the response was less prominent than in theGuano treatment, suggesting synergetic effects of nutrients in seabird guano on phytoplankton production. Itwas also found that the pattern of response varied between the water masses with 610 days lag phase in theSub-Antarcticwater mass and no lag phase in Sub-Tropical Frontal Zone. The calculations presented here suggestthat micro- and macronutrients delivered from seabird colonies on some of the sub-Antarctic islands may providea significant amount of limiting nutrients to the nutrient budget of the surrounding coastal waters, potentiallysufficient to sustain a local phytoplankton bloom. Findings of the present study indicate that biologicalrecycling of nutrients by seabirds likely supports marine primary production and enhances productivity of associatedfood webs in the vicinity of islands. |
format |
Article in Journal/Newspaper |
author |
Shatova, O Wing, SR Gault-Ringold, M Wing, L Hoffmann, LJ |
author_facet |
Shatova, O Wing, SR Gault-Ringold, M Wing, L Hoffmann, LJ |
author_sort |
Shatova, O |
title |
Seabird guano enhances phytoplankton production in the Southern Ocean |
title_short |
Seabird guano enhances phytoplankton production in the Southern Ocean |
title_full |
Seabird guano enhances phytoplankton production in the Southern Ocean |
title_fullStr |
Seabird guano enhances phytoplankton production in the Southern Ocean |
title_full_unstemmed |
Seabird guano enhances phytoplankton production in the Southern Ocean |
title_sort |
seabird guano enhances phytoplankton production in the southern ocean |
publisher |
Elsevier Science Bv |
publishDate |
2016 |
url |
https://doi.org/10.1016/j.jembe.2016.07.004 http://ecite.utas.edu.au/113759 |
long_lat |
ENVELOPE(141.604,141.604,-66.775,-66.775) |
geographic |
Antarctic Guano Southern Ocean |
geographic_facet |
Antarctic Guano Southern Ocean |
genre |
Antarc* Antarctic Snares Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Snares Islands Southern Ocean |
op_relation |
http://dx.doi.org/10.1016/j.jembe.2016.07.004 Shatova, O and Wing, SR and Gault-Ringold, M and Wing, L and Hoffmann, LJ, Seabird guano enhances phytoplankton production in the Southern Ocean, Journal of Experimental Marine Biology and Ecology, 483 pp. 74-87. ISSN 0022-0981 (2016) [Refereed Article] http://ecite.utas.edu.au/113759 |
op_doi |
https://doi.org/10.1016/j.jembe.2016.07.004 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
483 |
container_start_page |
74 |
op_container_end_page |
87 |
_version_ |
1766250683493777408 |