Particle analysis in the Kara Sea

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Hauptverfasser: Gaye-Haake, Birgit, Unger, Daniela, Nöthig, Eva-Maria, Okolodkov, Yuri, Fahl, Kirsten, Ittekkot, Venugopalan
Format: Dataset Open Access
Sprache:en
Veröffentlicht: PANGAEA 2003
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author Gaye-Haake, Birgit
Unger, Daniela
Nöthig, Eva-Maria
Okolodkov, Yuri
Fahl, Kirsten
Ittekkot, Venugopalan
author_facet Gaye-Haake, Birgit
Unger, Daniela
Nöthig, Eva-Maria
Okolodkov, Yuri
Fahl, Kirsten
Ittekkot, Venugopalan
collection Datos científicos de ciencias marinas y ambientales
contents In September 1999 two short-term moorings with cylindrical sediment traps were deployed to collect sinking particles in bottom waters off the Ob and Yenisei river mouths. Samples were studied for their bulk composition, pigments, phytoplankton, microzooplankton, fecal material, amino acids, hexosamines, fatty acids and sterols and compared to suspended matter and surface sediments in order to collect information about the nature and cycling of particulate matter in the water column. Results of all measured components in sinking particles point to an ongoing seasonality in the pelagic system from blooming diatoms in the first phase to a more retention system in the second half of trap deployment. Due to a phytoplankton bloom observed north of the Ob estuary, flux rates were generally higher in the trap deployed off the Ob than off the Yenisei. The Ob trap collected fresh surface-derived particulate matter. Particles from the Yenisei trap were more degraded and resembled deep water suspension. This material may partly have been derived from resuspended sediments.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_548070
institution PANGAEA
language en
publishDate 2003
publisher PANGAEA
record_format pangaea
spellingShingle Particle analysis in the Kara Sea
Gaye-Haake, Birgit
Unger, Daniela
Nöthig, Eva-Maria
Okolodkov, Yuri
Fahl, Kirsten
Ittekkot, Venugopalan
Akademik Boris Petrov; BP99; BP99-01; BP99-03; MULT; Multiple investigations; Siberian River Run-Off; SIRRO
In September 1999 two short-term moorings with cylindrical sediment traps were deployed to collect sinking particles in bottom waters off the Ob and Yenisei river mouths. Samples were studied for their bulk composition, pigments, phytoplankton, microzooplankton, fecal material, amino acids, hexosamines, fatty acids and sterols and compared to suspended matter and surface sediments in order to collect information about the nature and cycling of particulate matter in the water column. Results of all measured components in sinking particles point to an ongoing seasonality in the pelagic system from blooming diatoms in the first phase to a more retention system in the second half of trap deployment. Due to a phytoplankton bloom observed north of the Ob estuary, flux rates were generally higher in the trap deployed off the Ob than off the Yenisei. The Ob trap collected fresh surface-derived particulate matter. Particles from the Yenisei trap were more degraded and resembled deep water suspension. This material may partly have been derived from resuspended sediments.
title Particle analysis in the Kara Sea
topic Akademik Boris Petrov; BP99; BP99-01; BP99-03; MULT; Multiple investigations; Siberian River Run-Off; SIRRO
url https://doi.org/10.1594/PANGAEA.548070