Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay
A field study was conducted in Santala Bay with weekly samplings during February and March 2000. Ice thickness was 20-28 cm, snow cover 0-1 cm. The under‐ice water column was stratified with a cold (-0.3 - 0.2°C) and less saline (S = 2.1-4.9) interface layer. Concentrations of particulate organic ca...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.855495 2023-05-15T13:44:47+02:00 Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay Werner, Iris Auel, Holger LATITUDE: 59.885000 * LONGITUDE: 23.090000 * DATE/TIME START: 2000-02-01T00:00:00 * DATE/TIME END: 2000-03-31T00:00:00 2004-12-02 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.855495 https://doi.org/10.1594/PANGAEA.855495 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.855495 https://doi.org/10.1594/PANGAEA.855495 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Werner, Iris; Auel, Holger (2007): Environmental conditions and overwintering strategies of planktonic metazoans in and below coastal fast ice in the Gulf of Finland (Baltic Sea). Sarsia, 89(2), 102-116, https://doi.org/10.1080/00364820410003504 Finland Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Santala SEAICEC Sea ice corer SPP1158 Dataset 2004 ftpangaea https://doi.org/10.1594/PANGAEA.855495 https://doi.org/10.1080/00364820410003504 2023-01-20T07:33:38Z A field study was conducted in Santala Bay with weekly samplings during February and March 2000. Ice thickness was 20-28 cm, snow cover 0-1 cm. The under‐ice water column was stratified with a cold (-0.3 - 0.2°C) and less saline (S = 2.1-4.9) interface layer. Concentrations of particulate organic carbon (0.5–5.8 mg POC/l) and algal pigments (0.3-18.2 µg chlorophyll a/l) were higher in the ice than in the water (0.2-0.5 mg POC/l, 1.6–7.1 µg chlorophyll a/l) and peaked mostly in the bottom part of the ice. The thin ice and almost lacking snow cover had favoured an early ice‐algal and phytoplankton bloom. The diversity of metazoans was low, with six species in the ice and eight species in the under‐ice water. The rotifer Synchaeta cf. littoralis dominated both in ice and water, with maximum abundances of 230 individuals/l in the bottom part of the ice. Rotifer eggs were also observed in the ice. Baltic sea ice seems to be a suitable habitat for rotifers. Nauplii and copepodids of the calanoid Acartia longiremis in the under‐ice water showed some herbivorous feeding (<0.1-0.23 ng gut pigment/individual), but analysis of fatty acids, fatty alcohols and biomarker ratios indicated a more omnivorous/carnivorous diet. Despite low temperatures, this copepod showed growth and development below the ice, doubling in numbers (mainly CI, CII) from 118 to 230 individuals m during the third week of March. Dataset Antarc* Antarctic Arctic Phytoplankton Sea ice Rotifer PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Arctic ENVELOPE(23.090000,23.090000,59.885000,59.885000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Finland Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Santala SEAICEC Sea ice corer SPP1158 |
spellingShingle |
Finland Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Santala SEAICEC Sea ice corer SPP1158 Werner, Iris Auel, Holger Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
topic_facet |
Finland Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas Santala SEAICEC Sea ice corer SPP1158 |
description |
A field study was conducted in Santala Bay with weekly samplings during February and March 2000. Ice thickness was 20-28 cm, snow cover 0-1 cm. The under‐ice water column was stratified with a cold (-0.3 - 0.2°C) and less saline (S = 2.1-4.9) interface layer. Concentrations of particulate organic carbon (0.5–5.8 mg POC/l) and algal pigments (0.3-18.2 µg chlorophyll a/l) were higher in the ice than in the water (0.2-0.5 mg POC/l, 1.6–7.1 µg chlorophyll a/l) and peaked mostly in the bottom part of the ice. The thin ice and almost lacking snow cover had favoured an early ice‐algal and phytoplankton bloom. The diversity of metazoans was low, with six species in the ice and eight species in the under‐ice water. The rotifer Synchaeta cf. littoralis dominated both in ice and water, with maximum abundances of 230 individuals/l in the bottom part of the ice. Rotifer eggs were also observed in the ice. Baltic sea ice seems to be a suitable habitat for rotifers. Nauplii and copepodids of the calanoid Acartia longiremis in the under‐ice water showed some herbivorous feeding (<0.1-0.23 ng gut pigment/individual), but analysis of fatty acids, fatty alcohols and biomarker ratios indicated a more omnivorous/carnivorous diet. Despite low temperatures, this copepod showed growth and development below the ice, doubling in numbers (mainly CI, CII) from 118 to 230 individuals m during the third week of March. |
format |
Dataset |
author |
Werner, Iris Auel, Holger |
author_facet |
Werner, Iris Auel, Holger |
author_sort |
Werner, Iris |
title |
Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
title_short |
Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
title_full |
Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
title_fullStr |
Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
title_full_unstemmed |
Occurrence of metazoans, and gut pigments and fatty acid composition of Acartia bifilosa in ice and under-ice water samples from Santala Bay |
title_sort |
occurrence of metazoans, and gut pigments and fatty acid composition of acartia bifilosa in ice and under-ice water samples from santala bay |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.855495 https://doi.org/10.1594/PANGAEA.855495 |
op_coverage |
LATITUDE: 59.885000 * LONGITUDE: 23.090000 * DATE/TIME START: 2000-02-01T00:00:00 * DATE/TIME END: 2000-03-31T00:00:00 |
long_lat |
ENVELOPE(23.090000,23.090000,59.885000,59.885000) |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic Phytoplankton Sea ice Rotifer |
genre_facet |
Antarc* Antarctic Arctic Phytoplankton Sea ice Rotifer |
op_source |
Supplement to: Werner, Iris; Auel, Holger (2007): Environmental conditions and overwintering strategies of planktonic metazoans in and below coastal fast ice in the Gulf of Finland (Baltic Sea). Sarsia, 89(2), 102-116, https://doi.org/10.1080/00364820410003504 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.855495 https://doi.org/10.1594/PANGAEA.855495 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.855495 https://doi.org/10.1080/00364820410003504 |
_version_ |
1766206379760025600 |