Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998
A study was performed from August 11 to September 3, 1998 in the Pechora Sea, which covered the shallow-water southeastern Barents Sea. Chlorophyll a concentration in the surface layer (C_chls) ranged from 0.08 to 1.15 mg/m**3, while primary production in the water column (C_phs) Varied from 17 to 1...
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2001
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.761440 2023-05-15T15:38:48+02:00 Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 Vedernikov, Vladimir I Gagarin, Vladimir I Burenkov, Vladimir I MEDIAN LATITUDE: 69.059164 * MEDIAN LONGITUDE: 51.728059 * SOUTH-BOUND LATITUDE: 67.583333 * WEST-BOUND LONGITUDE: 46.498333 * NORTH-BOUND LATITUDE: 70.915000 * EAST-BOUND LONGITUDE: 58.468333 * DATE/TIME START: 1998-08-11T00:00:00 * DATE/TIME END: 1998-09-03T00:00:00 2001-06-03 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.761440 https://doi.org/10.1594/PANGAEA.761440 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.761440 https://doi.org/10.1594/PANGAEA.761440 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Vedernikov, Vladimir I; Gagarin, Vladimir I; Burenkov, Vladimir I (2001): Features of distribution of primary production and chlorophyll in the Pechora Sea in August-September 1998. Translated from Okeanologiya, 2001, 41(1), 69-79, Oceanology, 41(1), 64-74 Akademik Sergey Vavilov Archive of Ocean Data ARCOD ASV13 ASV13-1088PP ASV13-1090PP ASV13-1095PP ASV13-1096PP ASV13-1097PP ASV13-1098PP ASV13-1099PP ASV13-1112PP ASV13-1115PP ASV13-1123PP ASV13-1125PP ASV13-1126PP ASV13-1131PP ASV13-1132PP ASV13-1133PP ASV13-1135PP ASV13-1137PP ASV13-1138PP ASV13-1139PP ASV13-1140PP ASV13-1141PP ASV13-1146PP ASV13-1147PP ASV13-1148PP ASV13-1149PP ASV13-1150PP ASV13-1152PP ASV13-1153PP ASV13-1154PP ASV13-1155PP ASV13-1156PP ASV13-1157PP ASV13-1158PP ASV13-1159PP ASV13-1162PP ASV13-1164PP ASV13-1166PP ASV13-1167PP ASV13-1168PP Barents Sea Water sample WS Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.761440 2023-01-20T07:32:11Z A study was performed from August 11 to September 3, 1998 in the Pechora Sea, which covered the shallow-water southeastern Barents Sea. Chlorophyll a concentration in the surface layer (C_chls) ranged from 0.08 to 1.15 mg/m**3, while primary production in the water column (C_phs) Varied from 17 to 170 mg C/m**2/day, aver. 75 mg C/m**2/day. Transition from central deep-water (60-190 m) parts of the sea to coastal shallow-water (15-30 m) parts was accompanied by increase of average C_chls values 2.4 times (from 0.21 to 0.51 mg/m**3) and decrease in average C_phs 1.6 times (from 95 to 58 mg C/m**2/day); the latter, in turn, resulted from decrease in thickness of the photosynthetic layer (H_ph) from 55 to 12 m and its relative transparency (H) from 17 to 4 m. This sharp change in H value and absence of a positive feedback between C_chls and C_phs were most probably related to rapid increase in the role of yellow substance and suspended matter in absorption of solar radiation in coastal waters. In sea areas with depths greater than 30 m a deep chlorophyll maximum was observed; at most of stations it located in the 20-35 m deep layer during illumination in photosynthetic active radiation range comprising 0.8-1.5% of its surface value. Parameters of photosynthetic light curves in these regions indicate participation of shade-adapted flora in formation of the deep chlorophyll maximum. In coastal waters characterized by a relatively uniform chlorophyll distribution over the water column no light adaptation of phytoplankton to efficient utilization of low irradiation for photosynthesis was encountered. Thus, a conclusion was made that combination of extremely low values of C_phs and H_ph makes the pelagic ecosystem of the Pechora Sea coastal regions very sensitive to anthropogenic impacts that may increase water turbidity. Dataset Barents Sea Pechora Pechora Sea PANGAEA - Data Publisher for Earth & Environmental Science Barents Sea ENVELOPE(46.498333,58.468333,70.915000,67.583333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik Sergey Vavilov Archive of Ocean Data ARCOD ASV13 ASV13-1088PP ASV13-1090PP ASV13-1095PP ASV13-1096PP ASV13-1097PP ASV13-1098PP ASV13-1099PP ASV13-1112PP ASV13-1115PP ASV13-1123PP ASV13-1125PP ASV13-1126PP ASV13-1131PP ASV13-1132PP ASV13-1133PP ASV13-1135PP ASV13-1137PP ASV13-1138PP ASV13-1139PP ASV13-1140PP ASV13-1141PP ASV13-1146PP ASV13-1147PP ASV13-1148PP ASV13-1149PP ASV13-1150PP ASV13-1152PP ASV13-1153PP ASV13-1154PP ASV13-1155PP ASV13-1156PP ASV13-1157PP ASV13-1158PP ASV13-1159PP ASV13-1162PP ASV13-1164PP ASV13-1166PP ASV13-1167PP ASV13-1168PP Barents Sea Water sample WS |
spellingShingle |
Akademik Sergey Vavilov Archive of Ocean Data ARCOD ASV13 ASV13-1088PP ASV13-1090PP ASV13-1095PP ASV13-1096PP ASV13-1097PP ASV13-1098PP ASV13-1099PP ASV13-1112PP ASV13-1115PP ASV13-1123PP ASV13-1125PP ASV13-1126PP ASV13-1131PP ASV13-1132PP ASV13-1133PP ASV13-1135PP ASV13-1137PP ASV13-1138PP ASV13-1139PP ASV13-1140PP ASV13-1141PP ASV13-1146PP ASV13-1147PP ASV13-1148PP ASV13-1149PP ASV13-1150PP ASV13-1152PP ASV13-1153PP ASV13-1154PP ASV13-1155PP ASV13-1156PP ASV13-1157PP ASV13-1158PP ASV13-1159PP ASV13-1162PP ASV13-1164PP ASV13-1166PP ASV13-1167PP ASV13-1168PP Barents Sea Water sample WS Vedernikov, Vladimir I Gagarin, Vladimir I Burenkov, Vladimir I Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
topic_facet |
Akademik Sergey Vavilov Archive of Ocean Data ARCOD ASV13 ASV13-1088PP ASV13-1090PP ASV13-1095PP ASV13-1096PP ASV13-1097PP ASV13-1098PP ASV13-1099PP ASV13-1112PP ASV13-1115PP ASV13-1123PP ASV13-1125PP ASV13-1126PP ASV13-1131PP ASV13-1132PP ASV13-1133PP ASV13-1135PP ASV13-1137PP ASV13-1138PP ASV13-1139PP ASV13-1140PP ASV13-1141PP ASV13-1146PP ASV13-1147PP ASV13-1148PP ASV13-1149PP ASV13-1150PP ASV13-1152PP ASV13-1153PP ASV13-1154PP ASV13-1155PP ASV13-1156PP ASV13-1157PP ASV13-1158PP ASV13-1159PP ASV13-1162PP ASV13-1164PP ASV13-1166PP ASV13-1167PP ASV13-1168PP Barents Sea Water sample WS |
description |
A study was performed from August 11 to September 3, 1998 in the Pechora Sea, which covered the shallow-water southeastern Barents Sea. Chlorophyll a concentration in the surface layer (C_chls) ranged from 0.08 to 1.15 mg/m**3, while primary production in the water column (C_phs) Varied from 17 to 170 mg C/m**2/day, aver. 75 mg C/m**2/day. Transition from central deep-water (60-190 m) parts of the sea to coastal shallow-water (15-30 m) parts was accompanied by increase of average C_chls values 2.4 times (from 0.21 to 0.51 mg/m**3) and decrease in average C_phs 1.6 times (from 95 to 58 mg C/m**2/day); the latter, in turn, resulted from decrease in thickness of the photosynthetic layer (H_ph) from 55 to 12 m and its relative transparency (H) from 17 to 4 m. This sharp change in H value and absence of a positive feedback between C_chls and C_phs were most probably related to rapid increase in the role of yellow substance and suspended matter in absorption of solar radiation in coastal waters. In sea areas with depths greater than 30 m a deep chlorophyll maximum was observed; at most of stations it located in the 20-35 m deep layer during illumination in photosynthetic active radiation range comprising 0.8-1.5% of its surface value. Parameters of photosynthetic light curves in these regions indicate participation of shade-adapted flora in formation of the deep chlorophyll maximum. In coastal waters characterized by a relatively uniform chlorophyll distribution over the water column no light adaptation of phytoplankton to efficient utilization of low irradiation for photosynthesis was encountered. Thus, a conclusion was made that combination of extremely low values of C_phs and H_ph makes the pelagic ecosystem of the Pechora Sea coastal regions very sensitive to anthropogenic impacts that may increase water turbidity. |
format |
Dataset |
author |
Vedernikov, Vladimir I Gagarin, Vladimir I Burenkov, Vladimir I |
author_facet |
Vedernikov, Vladimir I Gagarin, Vladimir I Burenkov, Vladimir I |
author_sort |
Vedernikov, Vladimir I |
title |
Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
title_short |
Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
title_full |
Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
title_fullStr |
Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
title_full_unstemmed |
Primary production of phytoplankton and chlorophyll a in the southeast Barents Sea in August-September 1998 |
title_sort |
primary production of phytoplankton and chlorophyll a in the southeast barents sea in august-september 1998 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.761440 https://doi.org/10.1594/PANGAEA.761440 |
op_coverage |
MEDIAN LATITUDE: 69.059164 * MEDIAN LONGITUDE: 51.728059 * SOUTH-BOUND LATITUDE: 67.583333 * WEST-BOUND LONGITUDE: 46.498333 * NORTH-BOUND LATITUDE: 70.915000 * EAST-BOUND LONGITUDE: 58.468333 * DATE/TIME START: 1998-08-11T00:00:00 * DATE/TIME END: 1998-09-03T00:00:00 |
long_lat |
ENVELOPE(46.498333,58.468333,70.915000,67.583333) |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Pechora Pechora Sea |
genre_facet |
Barents Sea Pechora Pechora Sea |
op_source |
Supplement to: Vedernikov, Vladimir I; Gagarin, Vladimir I; Burenkov, Vladimir I (2001): Features of distribution of primary production and chlorophyll in the Pechora Sea in August-September 1998. Translated from Okeanologiya, 2001, 41(1), 69-79, Oceanology, 41(1), 64-74 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.761440 https://doi.org/10.1594/PANGAEA.761440 |
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.761440 |
_version_ |
1766370146217099264 |