Natural Resource Potential of Macroalgae Harvesting in the Baltic Sea-Case Study Trelleborg, Sweden
2013 (English)In: Global Challenges in Integrated Coastal Zone Management, John Wiley & Sons, 2013, 69-84 p.Chapter in book (Other academic)
The interest in harvesting biomass from the Baltic Sea has increased in recent years. However, there is a lack of available data on macroalgae biomass and of cost-effective methods for site-specific quantification of macroalgae. In this study, macroalgae biomass has been quantified in Trelleborg and thus the nutrient reduction that could be achieved by harvesting on a regional scale. The biomass was estimated on the basis of existing inventories of macroalgae, photic zone distribution and bottom substrata. An independent model for estimating the potential of macroalgae growth was applied where factors affecting the growth of macroalgae, for example nutrients, light and temperature, were considered. The estimated summer stock of macroalgae biomass along the 58 km coastal stretch in Trelleborg amounts to 19 000 tonnes dry weight (dwt) red filamentous algae. If 10-30% of this summer stock were to be harvested, a nutrient reduction of 50-150 t of nitrogen could be achieved. The model for estimating biomass proved promising and worthy of further investigation.
Place, publisher, year, edition, pages
John Wiley & Sons, 2013. 69-84 p.
Algae biomass, Biomass quantification, Filamentous biomass, Macroalgae harvesting, Natural resource potential
IdentifiersURN: urn:nbn:se:kth:diva-140103DOI: 10.1002/9781118496480.ch6ScopusID: 2-s2.0-84889496130ISBN: 9780470657560OAI: oai:DiVA.org:kth-140103DiVA: diva2:688679
QC 201401172014-01-172014-01-172014-11-26Bibliographically approved