On the copepod response to iron-induced phytoplankton blooms in the Southern Ocean

This thesis investigates the response of copepods to increased phytoplankton abundance during two mesoscale iron-fertilisation experiments in the Southern Ocean (EisenEx in austral spring 2001 and EIFEX in austral autumn 2004), focussing on the copepods vertical migration behaviour. Their migratory...

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Bibliographic Details
Main Author: Krägefsky, Sören
Other Authors: Bathmann, Ulrich, Wolf-Gladrow, Dieter
Format: Doctoral or Postdoctoral Thesis
Language:English
Published: Universität Bremen 2008
Subjects:
copepods
iron fertilisation
food finding strategy
vertical migration
Southern Ocean
570
570 Life sciences
biology
ddc:570
Austral
Copepods
Online Access:https://media.suub.uni-bremen.de/handle/elib/2602
https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000112756
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Summary:This thesis investigates the response of copepods to increased phytoplankton abundance during two mesoscale iron-fertilisation experiments in the Southern Ocean (EisenEx in austral spring 2001 and EIFEX in austral autumn 2004), focussing on the copepods vertical migration behaviour. Their migratory behaviour can be considered as a food finding strategy to cope with the patchy, mostly poor food environment of the Southern Ocean. A large abundance increase of copepods was observed inside the bloom area. Their grazing can significantly alter carbon and nutrient fluxes after iron fertilisation in Southern Ocean.

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