Temperature, discharge and light data for Ivishak Hot Spring, Alaska
The productivity of a perennial, Arctic spring-stream was investigated. Ivishak Spring has the stable discharge (~131 L/s) and temperature (~4-8 deg C) typical for springs. It is unusual, however, in having an annual cycle of daylight from 24 hrs/d (summer) to 0 hrs/d (winter). It was tested from th...
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Arctic Data Center
2016
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dataone:urn:uuid:4207b7ef-6cff-4873-ae33-e6f3feb47ac9 2024-06-03T18:46:33+00:00 Temperature, discharge and light data for Ivishak Hot Spring, Alaska ENVELOPE(-147.721,-147.719,69.025,69.024) BEGINDATE: 2006-08-08T00:00:00Z ENDDATE: 2009-08-05T23:59:59Z 2016-02-25T00:00:00Z https://search.dataone.org/view/urn:uuid:4207b7ef-6cff-4873-ae33-e6f3feb47ac9 unknown Arctic Data Center Arctic Dataset 2016 dataone:urn:node:ARCTIC 2024-06-03T18:07:04Z The productivity of a perennial, Arctic spring-stream was investigated. Ivishak Spring has the stable discharge (~131 L/s) and temperature (~4-8 deg C) typical for springs. It is unusual, however, in having an annual cycle of daylight from 24 hrs/d (summer) to 0 hrs/d (winter). It was tested from the hypothesis that stored detritus would buffer carbon limitation during winter when gross primary production (GPP) is minimized, resulting in constant rates of community respiration (CR) year-round due to constant temperatures. Open-channel methods were used to measure GPP and CR monthly from March 2007 to August 2009. Mean annual GPP was 458 gC/m2. Such a level is typical for temperate desert streams but was surprising for an Arctic stream. Annual CR (887 gC/m2) was also remarkable. The high metabolism of this stream is explained by an open canopy, moderate year-round temperatures, stable bed, and high bryophyte biomass (48 gAFDM/m2). Strong seasonal cycles of GPP were mirrored by CR (r=0.65) indicating the possibility of carbon limitation during winter. This result falsified the hypothesis that CR would be relatively stable year-round due to a detritus buffer and constant temperature. Dataset Arctic Alaska Arctic Data Center (via DataONE) Arctic ENVELOPE(-147.721,-147.719,69.025,69.024) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Arctic |
spellingShingle |
Arctic Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
topic_facet |
Arctic |
description |
The productivity of a perennial, Arctic spring-stream was investigated. Ivishak Spring has the stable discharge (~131 L/s) and temperature (~4-8 deg C) typical for springs. It is unusual, however, in having an annual cycle of daylight from 24 hrs/d (summer) to 0 hrs/d (winter). It was tested from the hypothesis that stored detritus would buffer carbon limitation during winter when gross primary production (GPP) is minimized, resulting in constant rates of community respiration (CR) year-round due to constant temperatures. Open-channel methods were used to measure GPP and CR monthly from March 2007 to August 2009. Mean annual GPP was 458 gC/m2. Such a level is typical for temperate desert streams but was surprising for an Arctic stream. Annual CR (887 gC/m2) was also remarkable. The high metabolism of this stream is explained by an open canopy, moderate year-round temperatures, stable bed, and high bryophyte biomass (48 gAFDM/m2). Strong seasonal cycles of GPP were mirrored by CR (r=0.65) indicating the possibility of carbon limitation during winter. This result falsified the hypothesis that CR would be relatively stable year-round due to a detritus buffer and constant temperature. |
format |
Dataset |
title |
Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
title_short |
Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
title_full |
Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
title_fullStr |
Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
title_full_unstemmed |
Temperature, discharge and light data for Ivishak Hot Spring, Alaska |
title_sort |
temperature, discharge and light data for ivishak hot spring, alaska |
publisher |
Arctic Data Center |
publishDate |
2016 |
url |
https://search.dataone.org/view/urn:uuid:4207b7ef-6cff-4873-ae33-e6f3feb47ac9 |
op_coverage |
ENVELOPE(-147.721,-147.719,69.025,69.024) BEGINDATE: 2006-08-08T00:00:00Z ENDDATE: 2009-08-05T23:59:59Z |
long_lat |
ENVELOPE(-147.721,-147.719,69.025,69.024) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
_version_ |
1800867749772132352 |