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Cadmium tolerance and adsorption by the marine brown alga Fucus vesiculosus from the Irish Sea and the Bothnian Sea
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.
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2009 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 100, no 5, 1727-1733 p.Article in journal (Refereed) Published
Abstract [en]

Cadmium (Cd) uptake capacities and Cd tolerance of the marine alga Fucus vesiculosus from the Irish Sea (salinity 35 psu) and from the Bothnian Sea (northern Baltic, 5 psu) were quantified. These data were complemented by measurements of changes in maximal photosynthetic rate (Pmax), dark respiration rate and variable fluorescence vs. maximal fluorescence (Fv:Fm). At concentrations between 0.01 and 1 mmol Cd l−1, F. vesiculosus from the Bothnian Sea adsorbed significantly more (about 98%) Cd compared with F. vesiculosus from the Irish Sea. The photosynthetic measurements showed that the Bothnian Sea F. vesiculosus were more sensitive to Cd exposure than the Irish Sea algae. The algae from the Irish Sea showed negative photosynthetic effects only at 1 mmol Cd l−1, which was expressed as a decreased Pmax (−12.3%) and Fv:Fm (−4.6%). On the contrary, the algae from the Bothnian Sea were negatively affected already at Cd concentrations as low at 0.1 mmol Cd l−1. They exhibited increased dark respiration (+11.1%) and decreased Fv:Fm (−13.9%). The results show that F. vesiculosus from the Bothnian Sea may be an efficient sorption substrate for Cd removal from Cd contaminated seawater and this algae type may also have applications for wastewater treatment.

Place, publisher, year, edition, pages
2009. Vol. 100, no 5, 1727-1733 p.
Keyword [en]
Fucus vesiculosus, cadmium, photosynthesis, adsorption
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:miun:diva-6280DOI: 10.1016/j.biortech.2008.09.041ISI: 000262704300004Scopus ID: 2-s2.0-57049188259Local ID: 3286OAI: oai:DiVA.org:miun-6280DiVA: diva2:31319
Available from: 2008-11-30 Created: 2008-11-30 Last updated: 2016-09-23Bibliographically approved
In thesis
1. Ecophysiological responses of Baltic and Atlantic Fucus vesiculosus to environmental factors
Open this publication in new window or tab >>Ecophysiological responses of Baltic and Atlantic Fucus vesiculosus to environmental factors
2005 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Baltic Sea is a species-poor ecosystem where marine species coexist with freshwater species. The Baltic Sea offers low salinity, low content of inorganic carbon, long cold winters and no tides.One of the few marine species that can be found in the Baltic, is the brown alga Fucus vesiculosus, which is regarded as ecologically the most important alga in this area. The aim of the present thesis was to examine physiological (photosynthesis and growth) differences between F. vesiculosus in the Bothnian Sea (northern Baltic) and the Atlantic. Measurements were performed with plants in their natural seawaters and under changed conditions of salinity, temperature, nutrients and inorganic carbon concentrations.

Place, publisher, year, edition, pages
Sundsvall: Mittuniversitetet, 2005. 44 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 6
Keyword
acclimation, Atlantic, Baltic Sea, Bothnian Sea, Cd, Fucus vesiculosus, growth, high PAR, Pb, photosynthesis, salinity, stress, UV-B
National Category
Biological Sciences
Identifiers
urn:nbn:se:miun:diva-5880 (URN)4405 (Local ID)91-85317-15-2 (ISBN)4405 (Archive number)4405 (OAI)
Public defence
2005-12-09, M108, Åkroken, Sundsvall, 10:00 (English)
Supervisors
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2009-07-13Bibliographically approved

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CiteExportLink to record
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Citation style
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