Diatom quantification and their distribution with salinity brines in coastal sediments of terra nova bay (antarctica)
International audience 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 co...
Published in: | Marine Environmental Research |
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Online Access: | https://hal.archives-ouvertes.fr/hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418/document https://hal.archives-ouvertes.fr/hal-00682418/file/PEER_stage2_10.1016%252Fj.marenvres.2011.02.005.pdf https://doi.org/10.1016/j.marenvres.2011.02.005 |
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ftccsdartic:oai:HAL:hal-00682418v1 2023-05-15T13:50:09+02:00 Diatom quantification and their distribution with salinity brines in coastal sediments of terra nova bay (antarctica) Baldi, Franco Facca, Chiara Marchetto, Davide Nguyen, Thi Nhu Mai Spurio, Roberto Department of Environmental Sciences University of Ca’ Foscari Venice, Italy University of Camerino 2011-03-26 https://hal.archives-ouvertes.fr/hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418/document https://hal.archives-ouvertes.fr/hal-00682418/file/PEER_stage2_10.1016%252Fj.marenvres.2011.02.005.pdf https://doi.org/10.1016/j.marenvres.2011.02.005 en eng HAL CCSD Elsevier science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2011.02.005 hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418/document https://hal.archives-ouvertes.fr/hal-00682418/file/PEER_stage2_10.1016%252Fj.marenvres.2011.02.005.pdf doi:10.1016/j.marenvres.2011.02.005 info:eu-repo/semantics/OpenAccess ISSN: 0141-1136 EISSN: 1879-0291 Marine Environmental Research https://hal.archives-ouvertes.fr/hal-00682418 Marine Environmental Research, Elsevier science, 2011, 71 (4), pp.304. ⟨10.1016/j.marenvres.2011.02.005⟩ diatoms real-time PCR coastal sediments SEM-EDX analyses salinity brines Terra Nova Bay [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2011 ftccsdartic https://doi.org/10.1016/j.marenvres.2011.02.005 2021-12-19T03:28:22Z International audience 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, , was associated to sediment salinity brines. Article in Journal/Newspaper Antarc* Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) 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 |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
diatoms real-time PCR coastal sediments SEM-EDX analyses salinity brines Terra Nova Bay [SDV]Life Sciences [q-bio] |
spellingShingle |
diatoms real-time PCR coastal sediments SEM-EDX analyses salinity brines Terra Nova Bay [SDV]Life Sciences [q-bio] Baldi, Franco Facca, Chiara Marchetto, Davide Nguyen, Thi Nhu Mai Spurio, Roberto Diatom quantification and their distribution with salinity brines in coastal sediments of terra nova bay (antarctica) |
topic_facet |
diatoms real-time PCR coastal sediments SEM-EDX analyses salinity brines Terra Nova Bay [SDV]Life Sciences [q-bio] |
description |
International audience 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, , was associated to sediment salinity brines. |
author2 |
Department of Environmental Sciences University of Ca’ Foscari Venice, Italy University of Camerino |
format |
Article in Journal/Newspaper |
author |
Baldi, Franco Facca, Chiara Marchetto, Davide Nguyen, Thi Nhu Mai Spurio, Roberto |
author_facet |
Baldi, Franco Facca, Chiara Marchetto, Davide Nguyen, Thi Nhu Mai Spurio, Roberto |
author_sort |
Baldi, Franco |
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) |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.archives-ouvertes.fr/hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418/document https://hal.archives-ouvertes.fr/hal-00682418/file/PEER_stage2_10.1016%252Fj.marenvres.2011.02.005.pdf 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 |
Terra Nova Bay Gerlache Gerlache Inlet Penguin Bay |
geographic_facet |
Terra Nova Bay Gerlache Gerlache Inlet Penguin Bay |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 0141-1136 EISSN: 1879-0291 Marine Environmental Research https://hal.archives-ouvertes.fr/hal-00682418 Marine Environmental Research, Elsevier science, 2011, 71 (4), pp.304. ⟨10.1016/j.marenvres.2011.02.005⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2011.02.005 hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418 https://hal.archives-ouvertes.fr/hal-00682418/document https://hal.archives-ouvertes.fr/hal-00682418/file/PEER_stage2_10.1016%252Fj.marenvres.2011.02.005.pdf doi:10.1016/j.marenvres.2011.02.005 |
op_rights |
info:eu-repo/semantics/OpenAccess |
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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1766253113609551872 |