Skip to Main content Skip to Navigation
Journal articles

Comparative biogeochemistry-ecosystem-human interactions on dynamic continental margins

Abstract : The oceans' continental margins face strong and rapid change, forced by a combination of direct human activity, anthropogenic CO2-induced climate change, and natural variability. Stimulated by discussions in Goa, India at the IMBER IMBIZO III, we (1) provide an overview of the drivers of biogeochemical variation and change on margins, (2) compare temporal trends in hydrographic and biogeochemical data across different margins, (3) review ecosystem responses to these changes, (4) highlight the importance of margin time series for detecting and attributing change and (5) examine societal responses to changing margin biogeochemistry and ecosystems. We synthesize information over a wide range of margin settings in order to identify the commonalities and distinctions among continental margin ecosystems. Key drivers of biogeochemical variation include long-term climate cycles, CO2-induced warming, acidification, and deoxygenation, as well as sea level rise, eutrophication, hydrologic and water cycle alteration, changing land use, fishing, and species invasion. Ecosystem responses are complex and impact major margin services. These include primary production, fisheries production, nutrient cycling, shoreline protection, chemical buffering, and biodiversity. Despite regional differences, the societal consequences of these changes are unarguably large and mandate coherent actions to reduce, mitigate and adapt to multiple stressors on continental margins.
Complete list of metadatas

Cited literature [4 references]  Display  Hide  Download

https://hal.univ-brest.fr/hal-01023100
Contributor : Adminhal Univbrestbu <>
Submitted on : Monday, June 29, 2020 - 9:09:31 PM
Last modification on : Thursday, August 6, 2020 - 4:32:34 PM

File

fulltext.pdf
Publisher files allowed on an open archive

Identifiers

Citation

L. A. Levin, K. K. Liu, K.C. Emeis, D.L. Breitburg, James E. Cloern, et al.. Comparative biogeochemistry-ecosystem-human interactions on dynamic continental margins. Journal of Marine Systems, Elsevier, 2015, 141, pp.3-17. ⟨10.1016/j.jmarsys.2014.04.016⟩. ⟨hal-01023100⟩

Share

Metrics

Record views

548

Files downloads

80