Jens E. N. Larsen
University of Copenhagen
6 Papers
7 Citations
Jens E. N. Larsen is an academic researcher from University of Copenhagen. The author has contributed to research in topics: Clearance rate & Ikaite. The author has an hindex of 6, co-authored 6 publications.
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Papers
Stratification and mixing in the Limfjorden in relation to mussel culture
TL;DR: In this article, a two-week campaign of hydrodynamic observations at different spatial scales was undertaken in May/June 2003 as part of an interdisciplinary study, which revealed that the water column in Limfjorden switches periodically between stratified and mixed conditions in response to meteorological forcing.
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In situ Dynamics of O2, pH, Light, and Photosynthesis in Ikaite Tufa Columns (Ikka Fjord, Greenland)-A Unique Microbial Habitat.
TL;DR: In situ O2 measurements, as well as underwater variable chlorophyll fluorescence measurements of photosynthetic activity, demonstrated high levels of oxygenic photosynthesis in this extreme gradient environment with strong irradiance-driven O2 dynamics ranging from anoxia to hyperoxic conditions in the ikaite matrix, albeit the local formation of gas bubbles buffered the day-night dynamics of O2 in the tufa columns.
Benthic grazing impact: coupling and uncoupling in relation to physical forcing
TL;DR: In the shallow micro-tidal cove Kertinge Nor, Denmark, a series of field campaigns were conducted from April 1995 to September 1996, the effect of benthic grazing on phytoplankton concentrations was studied using a dual approach, which estimated that realised grazing was ~50% of the potential.
Phototrophic microbes form endolithic biofilms in ikaite tufa columns (SW Greenland)
TL;DR: Phototrophs in ikaite thus thrive in polymer-bound endolithic biofilms in a complex gradient microhabitat experiencing constant slow percolation of highly alkaline phosphate-enriched spring water mixing with cold seawater at the tufa-column-apex.
Intercalibration of mussel Mytilus edulis clearance rate measurements
J. Kjerulf Petersen,S. Bougrier,Aad C. Smaal,P. Garen,S. Robert,Jens E. N. Larsen,E.B.M. Brummelhuis +6 more
TL;DR: The significantly lower CR of mussels from Oosterschelde was related to condition index and gill area, but could not entirely be explained by these factors.