Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host
Abstract Epiphytic diatoms are important constituents of the Southern Ocean coastal water ecosystem, being a key element in many of the Antarctic trophic chains. However, only limited information exists relating to these microalgal communities. Here we describe our findings of a study on epiphytic d...
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crcambridgeupr:10.1017/s0954102012001101 2024-03-03T08:38:22+00:00 Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host Majewska, Roksana Gambi, Maria Cristina Totti, Cecilia Maria De Stefano, Mario 2013 http://dx.doi.org/10.1017/s0954102012001101 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012001101 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 25, issue 4, page 501-513 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2013 crcambridgeupr https://doi.org/10.1017/s0954102012001101 2024-02-08T08:36:33Z Abstract Epiphytic diatoms are important constituents of the Southern Ocean coastal water ecosystem, being a key element in many of the Antarctic trophic chains. However, only limited information exists relating to these microalgal communities. Here we describe our findings of a study on epiphytic diatoms from Terra Nova Bay (Ross Sea, Antarctica) based on material collected during the summer campaigns spanning from 1990–2004. Observations of diatoms associated with three rhodophyte species ( Iridaea cordata (Turner) Bory, Phyllophora antarctica Gepp & Gepp, and Plocamium cartilagineum (L.) Dixon) were carried out with the use of a scanning electron microscope. A total of 73 diatom taxa (32 genera) were distinguished, of which 20 taxa exceeded 3% of total abundance. Cocconeis fasciolata (Ehrenberg) Brown, Navicula perminuta Grunow, and Fragilariopsis nana (Steemann Nielsen) Paasche appeared in every sample. The analysis of similarities (ANOSIM) test as well as non-metric multidimensional scaling analysis indicated the nature of host organism as a major factor influencing associated diatom community structure, whereas depth, site, and time of sampling seemed to be less important. The epizooic communities associated with sessile fauna epiphytic on macroalgae differed significantly from those associated with macroalgal surface. A pronounced difference between the communities epiphytic on various host macroalgae species was also observed, although most of the dissimilarities occurred between diatom taxa of the same growth form. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Ross Sea Southern Ocean Cambridge University Press Antarctic Southern Ocean The Antarctic Ross Sea Terra Nova Bay Bory ENVELOPE(40.372,40.372,64.489,64.489) Antarctic Science 25 4 501 513 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Majewska, Roksana Gambi, Maria Cristina Totti, Cecilia Maria De Stefano, Mario Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Epiphytic diatoms are important constituents of the Southern Ocean coastal water ecosystem, being a key element in many of the Antarctic trophic chains. However, only limited information exists relating to these microalgal communities. Here we describe our findings of a study on epiphytic diatoms from Terra Nova Bay (Ross Sea, Antarctica) based on material collected during the summer campaigns spanning from 1990–2004. Observations of diatoms associated with three rhodophyte species ( Iridaea cordata (Turner) Bory, Phyllophora antarctica Gepp & Gepp, and Plocamium cartilagineum (L.) Dixon) were carried out with the use of a scanning electron microscope. A total of 73 diatom taxa (32 genera) were distinguished, of which 20 taxa exceeded 3% of total abundance. Cocconeis fasciolata (Ehrenberg) Brown, Navicula perminuta Grunow, and Fragilariopsis nana (Steemann Nielsen) Paasche appeared in every sample. The analysis of similarities (ANOSIM) test as well as non-metric multidimensional scaling analysis indicated the nature of host organism as a major factor influencing associated diatom community structure, whereas depth, site, and time of sampling seemed to be less important. The epizooic communities associated with sessile fauna epiphytic on macroalgae differed significantly from those associated with macroalgal surface. A pronounced difference between the communities epiphytic on various host macroalgae species was also observed, although most of the dissimilarities occurred between diatom taxa of the same growth form. |
format |
Article in Journal/Newspaper |
author |
Majewska, Roksana Gambi, Maria Cristina Totti, Cecilia Maria De Stefano, Mario |
author_facet |
Majewska, Roksana Gambi, Maria Cristina Totti, Cecilia Maria De Stefano, Mario |
author_sort |
Majewska, Roksana |
title |
Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
title_short |
Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
title_full |
Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
title_fullStr |
Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
title_full_unstemmed |
Epiphytic diatom communities of Terra Nova Bay, Ross Sea, Antarctica: structural analysis and relations to algal host |
title_sort |
epiphytic diatom communities of terra nova bay, ross sea, antarctica: structural analysis and relations to algal host |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1017/s0954102012001101 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102012001101 |
long_lat |
ENVELOPE(40.372,40.372,64.489,64.489) |
geographic |
Antarctic Southern Ocean The Antarctic Ross Sea Terra Nova Bay Bory |
geographic_facet |
Antarctic Southern Ocean The Antarctic Ross Sea Terra Nova Bay Bory |
genre |
Antarc* Antarctic Antarctic Science Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Ross Sea Southern Ocean |
op_source |
Antarctic Science volume 25, issue 4, page 501-513 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102012001101 |
container_title |
Antarctic Science |
container_volume |
25 |
container_issue |
4 |
container_start_page |
501 |
op_container_end_page |
513 |
_version_ |
1792506757046599680 |