Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait
The plankton recorder LOKI provides high-resolution pictures, continuously taken by a 4 Megapixel camera during vertical hauls from 1000 depth to the surface. Linked to each picture, hydrographical parameters are being recorded, e.g. salinity, temperature, oxygen concentration and fluorescence. This...
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ftawi:oai:epic.awi.de:44057 2023-05-15T14:27:38+02:00 Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait Niehoff, Barbara Köhler, Vanessa Hildebrandt, Nicole 2017-02-21 application/pdf https://epic.awi.de/id/eprint/44057/ https://epic.awi.de/id/eprint/44057/1/MIW2017_Poster_Niehoff.pdf https://hdl.handle.net/10013/epic.50568 https://hdl.handle.net/10013/epic.50568.d001 unknown https://epic.awi.de/id/eprint/44057/1/MIW2017_Poster_Niehoff.pdf https://hdl.handle.net/10013/epic.50568.d001 Niehoff, B. , Köhler, V. and Hildebrandt, N. (2017) Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait , Marine Imaging Workshop 2017, Geomar Helmholtz Centre for Ocean Research, Kiel, 21 February 2017 - 24 February 2017 . hdl:10013/epic.50568 EPIC3Marine Imaging Workshop 2017, Geomar Helmholtz Centre for Ocean Research, Kiel, 2017-02-21-2017-02-24 Conference notRev 2017 ftawi 2021-12-24T15:42:43Z The plankton recorder LOKI provides high-resolution pictures, continuously taken by a 4 Megapixel camera during vertical hauls from 1000 depth to the surface. Linked to each picture, hydrographical parameters are being recorded, e.g. salinity, temperature, oxygen concentration and fluorescence. This allows to exactly identifying distribution patterns in relation to environmental conditions. In order to analyse the community composition, abundance and depth distribution of the species in the Fram Strait, we have conducted two hauls during a RV Polarstern cruise in July/August 2015 (PS93.2) to the deep-sea observatory “Hausgarten” of the Alfred-Wegener-Institute, Germany. We sampled the most northern (79°56’35” N, 3°11’45” E) and the most southern station (78°35’97” N, 5°4”11” E) of the “Hausgarten” monitoring stations. The two stations were similar with regard to zooplankton community composition. Copepods, among which Calanus, Oncaea and Microcalanus were the most frequent genera, dominated with a contribution of more than 80%. Calanus reached the highest abundances in surface layers (<100m depth) whereas maximum abundances of Oncaea and Microcalanus were mostly found in depths > 300m. Abundances at the northern station were twice as high as at the southern station. Mean weighted depths of the dominant taxa were significantly deeper at the northern than at the southern station, which corresponded to the deeper location of the Return Atlantic Intermediate Water. Conference Object Arctic Arctic Fram Strait Zooplankton Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The plankton recorder LOKI provides high-resolution pictures, continuously taken by a 4 Megapixel camera during vertical hauls from 1000 depth to the surface. Linked to each picture, hydrographical parameters are being recorded, e.g. salinity, temperature, oxygen concentration and fluorescence. This allows to exactly identifying distribution patterns in relation to environmental conditions. In order to analyse the community composition, abundance and depth distribution of the species in the Fram Strait, we have conducted two hauls during a RV Polarstern cruise in July/August 2015 (PS93.2) to the deep-sea observatory “Hausgarten” of the Alfred-Wegener-Institute, Germany. We sampled the most northern (79°56’35” N, 3°11’45” E) and the most southern station (78°35’97” N, 5°4”11” E) of the “Hausgarten” monitoring stations. The two stations were similar with regard to zooplankton community composition. Copepods, among which Calanus, Oncaea and Microcalanus were the most frequent genera, dominated with a contribution of more than 80%. Calanus reached the highest abundances in surface layers (<100m depth) whereas maximum abundances of Oncaea and Microcalanus were mostly found in depths > 300m. Abundances at the northern station were twice as high as at the southern station. Mean weighted depths of the dominant taxa were significantly deeper at the northern than at the southern station, which corresponded to the deeper location of the Return Atlantic Intermediate Water. |
format |
Conference Object |
author |
Niehoff, Barbara Köhler, Vanessa Hildebrandt, Nicole |
spellingShingle |
Niehoff, Barbara Köhler, Vanessa Hildebrandt, Nicole Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
author_facet |
Niehoff, Barbara Köhler, Vanessa Hildebrandt, Nicole |
author_sort |
Niehoff, Barbara |
title |
Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
title_short |
Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
title_full |
Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
title_fullStr |
Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
title_full_unstemmed |
Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait |
title_sort |
using the optical plankton recorder loki (lightframe on-sight key species investigations) to elucidate high-resolution vertical distribution patterns of arctic zooplankton species in fram strait |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44057/ https://epic.awi.de/id/eprint/44057/1/MIW2017_Poster_Niehoff.pdf https://hdl.handle.net/10013/epic.50568 https://hdl.handle.net/10013/epic.50568.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Fram Strait Zooplankton Copepods |
genre_facet |
Arctic Arctic Fram Strait Zooplankton Copepods |
op_source |
EPIC3Marine Imaging Workshop 2017, Geomar Helmholtz Centre for Ocean Research, Kiel, 2017-02-21-2017-02-24 |
op_relation |
https://epic.awi.de/id/eprint/44057/1/MIW2017_Poster_Niehoff.pdf https://hdl.handle.net/10013/epic.50568.d001 Niehoff, B. , Köhler, V. and Hildebrandt, N. (2017) Using the optical plankton recorder LOKI (Lightframe On-sight Key species Investigations) to elucidate high-resolution vertical distribution patterns of Arctic zooplankton species in Fram Strait , Marine Imaging Workshop 2017, Geomar Helmholtz Centre for Ocean Research, Kiel, 21 February 2017 - 24 February 2017 . hdl:10013/epic.50568 |
_version_ |
1766301460129120256 |