Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica).
Benthic diatoms represent an important element of global nutritional productivity; to raise attention on their role, which is often neglected due to analytical difficulties, surface (1 cm top layer) coastal sediments from Gerlache inlet to Penguin Bay at Terra Nova Bay were collected and stored at -...
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ftuncamerinoiris:oai:pubblicazioni.unicam.it:11581/218537 2024-04-14T08:04:19+00:00 Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). F. Baldi C. Facca D. Marchetto T. N. M. Nguyen SPURIO, Roberto F., Baldi C., Facca D., Marchetto T. N. M., Nguyen Spurio, Roberto 2011 STAMPA http://hdl.handle.net/11581/218537 https://doi.org/10.1016/j.marenvres.2011.02.005 eng eng info:eu-repo/semantics/altIdentifier/pmid/21414661 info:eu-repo/semantics/altIdentifier/wos/000290007400008 volume:71 issue:1 firstpage:304 lastpage:311 numberofpages:8 journal:MARINE ENVIRONMENTAL RESEARCH http://hdl.handle.net/11581/218537 doi:10.1016/j.marenvres.2011.02.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79953065019 http://dx.doi.org/10.1016/j.marenvres.2011.02.005 Antarctic Region Biodiversity Diatom classification/growth /&/ development/ultrastructure Geologic Sediment Microscopy Electron Scanning Population Dynamic Salinity Seawater chemistry info:eu-repo/semantics/article 2011 ftuncamerinoiris https://doi.org/10.1016/j.marenvres.2011.02.005 2024-03-21T20:36:53Z Benthic diatoms represent an important element of global nutritional productivity; to raise attention on their role, which is often neglected due to analytical difficulties, surface (1 cm top layer) coastal sediments from Gerlache inlet to Penguin Bay at Terra Nova Bay were collected and stored at -20 °C. DNA amplification by real-time PCR, based on diatom-specific oligonucleotide primers designed on small-subunit rRNA (SSU rRNA), was performed in addition to diatom conventional cell counting and spectrophotometric determination of photo-pigments. Moreover, cations and anions were determined in sediments with the aim to identify factors involved in the control of diatom abundance. Diatom distribution was found quite heterogeneous displaying significant differences from site to site. The salinity in sediments ranged from 45.1 at Gerlache inlet to 76.2 at Penguin Bay and it was correlated with cell abundance, biodiversity, amount of pigments and amplified DNA. The dominant species, Fragilariopsis curta, was associated to sediment salinity brines. Article in Journal/Newspaper Antarc* Antarctic Antarctica CAMPUS Pubblicazioni Scientifiche Unicam (Università di Camerino) Antarctic Terra Nova Bay Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Inlet ENVELOPE(164.100,164.100,-74.683,-74.683) Penguin Bay ENVELOPE(-36.567,-36.567,-54.250,-54.250) Marine Environmental Research 71 4 304 311 |
institution |
Open Polar |
collection |
CAMPUS Pubblicazioni Scientifiche Unicam (Università di Camerino) |
op_collection_id |
ftuncamerinoiris |
language |
English |
topic |
Antarctic Region Biodiversity Diatom classification/growth /&/ development/ultrastructure Geologic Sediment Microscopy Electron Scanning Population Dynamic Salinity Seawater chemistry |
spellingShingle |
Antarctic Region Biodiversity Diatom classification/growth /&/ development/ultrastructure Geologic Sediment Microscopy Electron Scanning Population Dynamic Salinity Seawater chemistry F. Baldi C. Facca D. Marchetto T. N. M. Nguyen SPURIO, Roberto Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
topic_facet |
Antarctic Region Biodiversity Diatom classification/growth /&/ development/ultrastructure Geologic Sediment Microscopy Electron Scanning Population Dynamic Salinity Seawater chemistry |
description |
Benthic diatoms represent an important element of global nutritional productivity; to raise attention on their role, which is often neglected due to analytical difficulties, surface (1 cm top layer) coastal sediments from Gerlache inlet to Penguin Bay at Terra Nova Bay were collected and stored at -20 °C. DNA amplification by real-time PCR, based on diatom-specific oligonucleotide primers designed on small-subunit rRNA (SSU rRNA), was performed in addition to diatom conventional cell counting and spectrophotometric determination of photo-pigments. Moreover, cations and anions were determined in sediments with the aim to identify factors involved in the control of diatom abundance. Diatom distribution was found quite heterogeneous displaying significant differences from site to site. The salinity in sediments ranged from 45.1 at Gerlache inlet to 76.2 at Penguin Bay and it was correlated with cell abundance, biodiversity, amount of pigments and amplified DNA. The dominant species, Fragilariopsis curta, was associated to sediment salinity brines. |
author2 |
F., Baldi C., Facca D., Marchetto T. N. M., Nguyen Spurio, Roberto |
format |
Article in Journal/Newspaper |
author |
F. Baldi C. Facca D. Marchetto T. N. M. Nguyen SPURIO, Roberto |
author_facet |
F. Baldi C. Facca D. Marchetto T. N. M. Nguyen SPURIO, Roberto |
author_sort |
F. Baldi |
title |
Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
title_short |
Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
title_full |
Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
title_fullStr |
Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
title_full_unstemmed |
Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica). |
title_sort |
diatom quantification and their distribution with salinity brines in coastal sediments of terra nova bay (antarctica). |
publishDate |
2011 |
url |
http://hdl.handle.net/11581/218537 https://doi.org/10.1016/j.marenvres.2011.02.005 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(164.100,164.100,-74.683,-74.683) ENVELOPE(-36.567,-36.567,-54.250,-54.250) |
geographic |
Antarctic Terra Nova Bay Gerlache Gerlache Inlet Penguin Bay |
geographic_facet |
Antarctic Terra Nova Bay Gerlache Gerlache Inlet Penguin Bay |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/21414661 info:eu-repo/semantics/altIdentifier/wos/000290007400008 volume:71 issue:1 firstpage:304 lastpage:311 numberofpages:8 journal:MARINE ENVIRONMENTAL RESEARCH http://hdl.handle.net/11581/218537 doi:10.1016/j.marenvres.2011.02.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79953065019 http://dx.doi.org/10.1016/j.marenvres.2011.02.005 |
op_doi |
https://doi.org/10.1016/j.marenvres.2011.02.005 |
container_title |
Marine Environmental Research |
container_volume |
71 |
container_issue |
4 |
container_start_page |
304 |
op_container_end_page |
311 |
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