(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ...
Amphipods living at the underside of Arctic sea ice are exposed to varying salinities due to freezing and melting, and have to cope with the resulting osmotic stress. Extracellular osmotic and ionic regulation at different salinities, thermal hysteresis, and supercooling points (SCPs) were studied i...
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ftdatacite:10.1594/pangaea.858995 2023-10-01T03:52:12+02:00 (Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... Kiko, Rainer Werner, Iris Wittmann, Astrid 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.858995 https://doi.pangaea.de/10.1594/PANGAEA.858995 en eng PANGAEA https://dx.doi.org/10.1007/s00300-008-0531-z Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Experimental treatment Sample type Potassium ion Haemolymph, potassium ion Magnesium ion Haemolymph, magnesium ion Calcium ion Haemolymph, calcium ion Sulfate ion Haemolymph, sulfate ion Sodium ion Haemolymph, sodium ion Chloride ion Haemolymph, chloride ion Sum Ice station ARK-XXII/2 Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset Supplementary Dataset dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.85899510.1007/s00300-008-0531-z 2023-09-04T14:52:34Z Amphipods living at the underside of Arctic sea ice are exposed to varying salinities due to freezing and melting, and have to cope with the resulting osmotic stress. Extracellular osmotic and ionic regulation at different salinities, thermal hysteresis, and supercooling points (SCPs) were studied in the under-ice amphipod Apherusa glacialis. The species is euryhaline, capable to regulate hyperosmotically at salinities S(R) < 30 g/kg, and osmoconforms at salinities S(R) >= 30 g/kg. Hyperosmotic regulation is an adaptation to thrive in low-salinity meltwater below the ice. Conforming to the ambient salinity during freezing reduces the risk of internal ice formation. Thermal hysteresis was not observed in the haemolymph of A. glacialis. The SCP of the species was -7.8 ± 1.9°C. Several ions were specifically downregulated ([Mg2+], [SO4]2-), or upregulated ([K+], [Ca2+]) in comparison to the medium. Strong downregulation of [Mg2+], is probably necessary to avoid an anaesthetic effect at low temperatures. ... : Sample numbers are n = 2 to 4 ... Dataset Antarc* Antarctic Arctic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Experimental treatment Sample type Potassium ion Haemolymph, potassium ion Magnesium ion Haemolymph, magnesium ion Calcium ion Haemolymph, calcium ion Sulfate ion Haemolymph, sulfate ion Sodium ion Haemolymph, sodium ion Chloride ion Haemolymph, chloride ion Sum Ice station ARK-XXII/2 Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Experimental treatment Sample type Potassium ion Haemolymph, potassium ion Magnesium ion Haemolymph, magnesium ion Calcium ion Haemolymph, calcium ion Sulfate ion Haemolymph, sulfate ion Sodium ion Haemolymph, sodium ion Chloride ion Haemolymph, chloride ion Sum Ice station ARK-XXII/2 Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Kiko, Rainer Werner, Iris Wittmann, Astrid (Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
topic_facet |
Experimental treatment Sample type Potassium ion Haemolymph, potassium ion Magnesium ion Haemolymph, magnesium ion Calcium ion Haemolymph, calcium ion Sulfate ion Haemolymph, sulfate ion Sodium ion Haemolymph, sodium ion Chloride ion Haemolymph, chloride ion Sum Ice station ARK-XXII/2 Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Amphipods living at the underside of Arctic sea ice are exposed to varying salinities due to freezing and melting, and have to cope with the resulting osmotic stress. Extracellular osmotic and ionic regulation at different salinities, thermal hysteresis, and supercooling points (SCPs) were studied in the under-ice amphipod Apherusa glacialis. The species is euryhaline, capable to regulate hyperosmotically at salinities S(R) < 30 g/kg, and osmoconforms at salinities S(R) >= 30 g/kg. Hyperosmotic regulation is an adaptation to thrive in low-salinity meltwater below the ice. Conforming to the ambient salinity during freezing reduces the risk of internal ice formation. Thermal hysteresis was not observed in the haemolymph of A. glacialis. The SCP of the species was -7.8 ± 1.9°C. Several ions were specifically downregulated ([Mg2+], [SO4]2-), or upregulated ([K+], [Ca2+]) in comparison to the medium. Strong downregulation of [Mg2+], is probably necessary to avoid an anaesthetic effect at low temperatures. ... : Sample numbers are n = 2 to 4 ... |
format |
Dataset |
author |
Kiko, Rainer Werner, Iris Wittmann, Astrid |
author_facet |
Kiko, Rainer Werner, Iris Wittmann, Astrid |
author_sort |
Kiko, Rainer |
title |
(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
title_short |
(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
title_full |
(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
title_fullStr |
(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
title_full_unstemmed |
(Table 1) Ion concentrations in the haemolymph of Apherusa glacialis after incubation at different medium salinities ... |
title_sort |
(table 1) ion concentrations in the haemolymph of apherusa glacialis after incubation at different medium salinities ... |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.858995 https://doi.pangaea.de/10.1594/PANGAEA.858995 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_relation |
https://dx.doi.org/10.1007/s00300-008-0531-z |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85899510.1007/s00300-008-0531-z |
_version_ |
1778517955220340736 |