Modeling the effects of abiotic and biotic factors on the depth distribution of Fucus vesiculosus in the Baltic Sea

Alexandridis, N., Oschlies, Andreas and Wahl, Martin (2012) Modeling the effects of abiotic and biotic factors on the depth distribution of Fucus vesiculosus in the Baltic Sea Marine Ecology Progress Series, 463 . pp. 59-72. DOI 10.3354/meps09856.

[img]
Preview
Text
m463p059.pdf - Published Version

Download (494Kb) | Preview

Supplementary data:

Abstract

The conspicuous retreat of the key species Fucus vesiculosus from the deeper parts of its former distribution area in the Baltic Sea has triggered extensive research on the factors that control its growth. Based on recently obtained knowledge on a large number of potential drivers, we developed a numerical model incorporating effects of abiotic factors on the physiological functions of photosynthesis, respiration, and reproduction and the ecological processes of competition, grazing, and epibiosis. For all input combinations, the model delivers the monthly net growth rate near the bladder wrack’s depth limit and the maximum depth of its vertical distribution. The use of data corresponding to conditions presently observed in the western Baltic Sea sets the year’s maximum algal net growth rate in late spring and 2 minima in early spring and autumn. The depth limit of the wrack’s distribution is set at ~9 m. Light and its absorption by phytoplankton represent by far the most important factors controlling the modeled net growth rate and depth penetration, with the role of epibiosis requiring further investigation. Lacking findings on population dynamics and biotic interactions restrict the generated model to an exploratory rather than a predictive tool.

Document Type: Article
Keywords: Depth limit; Benthic ecology; Eutrophication; Ecological modeling; Bladder wrack; Biotic interactions; Fucus physiology
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BM Biogeochemical Modeling
OceanRep > The Future Ocean - Cluster of Excellence > FO-R08
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-B Experimental Ecology - Benthic Ecology
Refereed: Yes
DOI etc.: 10.3354/meps09856
ISSN: 0171-8630
Projects: Future Ocean
Date Deposited: 06 Sep 2012 07:16
Last Modified: 16 Feb 2017 10:33
URI: http://eprints.uni-kiel.de/id/eprint/15144

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...