Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018
In the nearshore Alaskan Beaufort Sea, discrete, isolated rocky habitats harbor biological communities that are unusually diverse for the region, with markedly different fauna and flora than found in the surrounding soft sediment areas. The boulder fields also support tightly linked food webs, with...
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ftdatacite:10.18739/a2p26q457 2023-05-15T15:19:14+02:00 Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 Dunton, Kenneth Bonsell, Christina 2020 text/xml https://dx.doi.org/10.18739/a2p26q457 https://arcticdata.io/catalog/view/doi:10.18739/A2P26Q457 en eng NSF Arctic Data Center Stefansson Sound hydrography oceanography Arctic conductivity temperature salinity pH chlorophyll dissolved oxygen dataset Dataset 2020 ftdatacite https://doi.org/10.18739/a2p26q457 2021-11-05T12:55:41Z In the nearshore Alaskan Beaufort Sea, discrete, isolated rocky habitats harbor biological communities that are unusually diverse for the region, with markedly different fauna and flora than found in the surrounding soft sediment areas. The boulder fields also support tightly linked food webs, with connections to higher trophic levels such as fishes and seals. These systems are highly vulnerable to disturbances, including sedimentation from human activities and coastal erosion, fluctuations in salinity from seasonal river discharge, and temperature increases from heat influx originating at lower latitudes and from atmospheric warming. Spatial isolation of these boulder fields and the slow development of benthic communities limit ecosystem recovery from disturbance. To assess the possible ecological effects of such environmental disturbances, this field program undertook an investigation of the biological communities and environmental conditions across the Stefansson Sound Boulder Patch, the largest of the Beaufort Sea nearshore boulder fields. The overlying objectives of this program were to: 1) monitor incident and in situ photosynthetically active radiation (PAR), salinity, temperature, currents, and pH to define the spatial variability in annual kelp productivity and biomass; 2) characterize benthic community structure changes across environmental gradients in the Boulder Patch and 3) collect annual measurements of kelp growth in the Boulder Patch to provide a nearly continuous record of kelp growth since 1976. Within and in addition to these objectives, individual research projects were completed, using experimental approaches, timeseries analysis and historical data to gain an in depth understanding of mechanisms (past and present) that resulted in the Boulder Patch community we see today and how this community may vary in future conditions. To understand spatial and temporal variation in water quality, temperature, conductivity, salinity, dissolved oxygen, pH, and chlorophyll were measured at multiple locations in Stefansson Sound, Beaufort Sea, Alaska. Data before 2014 only includes temperature and salinity information. Measurements were taken near the surface and near the bottom. These data were collected as part of a larger studies to assess potential impacts of offshore development and to gain an in-depth understanding of mechanisms (past and present) that resulted in the Boulder Patch community we see today and how this community may vary in future conditions. Dataset Arctic Beaufort Sea Alaska DataCite Metadata Store (German National Library of Science and Technology) Arctic Stefansson ENVELOPE(-62.417,-62.417,-69.467,-69.467) Stefansson Sound ENVELOPE(-62.417,-62.417,-69.467,-69.467) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Stefansson Sound hydrography oceanography Arctic conductivity temperature salinity pH chlorophyll dissolved oxygen |
spellingShingle |
Stefansson Sound hydrography oceanography Arctic conductivity temperature salinity pH chlorophyll dissolved oxygen Dunton, Kenneth Bonsell, Christina Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
topic_facet |
Stefansson Sound hydrography oceanography Arctic conductivity temperature salinity pH chlorophyll dissolved oxygen |
description |
In the nearshore Alaskan Beaufort Sea, discrete, isolated rocky habitats harbor biological communities that are unusually diverse for the region, with markedly different fauna and flora than found in the surrounding soft sediment areas. The boulder fields also support tightly linked food webs, with connections to higher trophic levels such as fishes and seals. These systems are highly vulnerable to disturbances, including sedimentation from human activities and coastal erosion, fluctuations in salinity from seasonal river discharge, and temperature increases from heat influx originating at lower latitudes and from atmospheric warming. Spatial isolation of these boulder fields and the slow development of benthic communities limit ecosystem recovery from disturbance. To assess the possible ecological effects of such environmental disturbances, this field program undertook an investigation of the biological communities and environmental conditions across the Stefansson Sound Boulder Patch, the largest of the Beaufort Sea nearshore boulder fields. The overlying objectives of this program were to: 1) monitor incident and in situ photosynthetically active radiation (PAR), salinity, temperature, currents, and pH to define the spatial variability in annual kelp productivity and biomass; 2) characterize benthic community structure changes across environmental gradients in the Boulder Patch and 3) collect annual measurements of kelp growth in the Boulder Patch to provide a nearly continuous record of kelp growth since 1976. Within and in addition to these objectives, individual research projects were completed, using experimental approaches, timeseries analysis and historical data to gain an in depth understanding of mechanisms (past and present) that resulted in the Boulder Patch community we see today and how this community may vary in future conditions. To understand spatial and temporal variation in water quality, temperature, conductivity, salinity, dissolved oxygen, pH, and chlorophyll were measured at multiple locations in Stefansson Sound, Beaufort Sea, Alaska. Data before 2014 only includes temperature and salinity information. Measurements were taken near the surface and near the bottom. These data were collected as part of a larger studies to assess potential impacts of offshore development and to gain an in-depth understanding of mechanisms (past and present) that resulted in the Boulder Patch community we see today and how this community may vary in future conditions. |
format |
Dataset |
author |
Dunton, Kenneth Bonsell, Christina |
author_facet |
Dunton, Kenneth Bonsell, Christina |
author_sort |
Dunton, Kenneth |
title |
Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
title_short |
Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
title_full |
Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
title_fullStr |
Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
title_full_unstemmed |
Water column physiochemical measurements in the Boulder Patch, Beaufort Sea, Alaska, 1986-2018 |
title_sort |
water column physiochemical measurements in the boulder patch, beaufort sea, alaska, 1986-2018 |
publisher |
NSF Arctic Data Center |
publishDate |
2020 |
url |
https://dx.doi.org/10.18739/a2p26q457 https://arcticdata.io/catalog/view/doi:10.18739/A2P26Q457 |
long_lat |
ENVELOPE(-62.417,-62.417,-69.467,-69.467) ENVELOPE(-62.417,-62.417,-69.467,-69.467) |
geographic |
Arctic Stefansson Stefansson Sound |
geographic_facet |
Arctic Stefansson Stefansson Sound |
genre |
Arctic Beaufort Sea Alaska |
genre_facet |
Arctic Beaufort Sea Alaska |
op_doi |
https://doi.org/10.18739/a2p26q457 |
_version_ |
1766349423931031552 |