Return to Neverland: Shifting baselines affect eutrophication restoration targets
TLDR
In this article, the implicit assumption of many scientific and regulatory frameworks that ecosystems impacted by human pressures may revert to their original condition by suppressing the pressure was tested using coastal eutrophication.Abstract:
The implicit assumption of many scientific and regulatory frameworks that ecosystems impacted by human pressures may be reverted to their original condition by suppressing the pressure was tested using coastal eutrophication. The response to nutrient abatement of four thoroughly studied coastal ecosystems that received increased nutrient inputs between the 1970s and the 1980s showed that the trajectories of these ecosystems were not directly reversible. All four ecosystems displayed convoluted trajectories that failed to return to the reference status upon nutrient reduction. This failure is proposed to result from the broad changes in environmental conditions, all affecting ecosystem dynamics, that occurred over the 30 years spanning from the onset of eutrophication to the reduction of nutrient levels. Understanding ecosystem response to multiple shifting baselines is essential to set reliable targets for restoration efforts.read more
Citations
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Declining oxygen in the global ocean and coastal waters.
Denise L. Breitburg,Lisa A. Levin,Andreas Oschlies,Marilaure Grégoire,Francisco P. Chavez,Daniel J. Conley,Véronique Garçon,Denis Gilbert,Dimitri Gutiérrez,Kirsten Isensee,Gil S. Jacinto,Karin E. Limburg,Ivonne Montes,S. W. A. Naqvi,Grant C. Pitcher,Grant C. Pitcher,Nancy N. Rabalais,Michael R. Roman,Kenneth A. Rose,Brad A. Seibel,Maciej Telszewski,Moriaki Yasuhara,Jing Zhang +22 more
TL;DR: Improved numerical models of oceanographic processes that control oxygen depletion and the large-scale influence of altered biogeochemical cycles are needed to better predict the magnitude and spatial patterns of deoxygenation in the open ocean, as well as feedbacks to climate.
Journal ArticleDOI
The European Water Framework Directive at the age of 10: A critical review of the achievements with recommendations for the future
Daniel Hering,Ángel Borja,Jacob Carstensen,Laurence Carvalho,Michael Elliott,Christian K. Feld,Anna-Stiina Heiskanen,Richard K. Johnson,Jannicke Moe,Didier Pont,Anne Lyche Solheim,Wouter van de Bund +11 more
TL;DR: The successes and problems encountered with implementation of the WFD over the past 10 years are reviewed and recommendations to further improve the implementation process are provided.
Journal ArticleDOI
Is Ocean Acidification an Open-Ocean Syndrome? Understanding Anthropogenic Impacts on Seawater pH
Carlos M. Duarte,Carlos M. Duarte,Iris E. Hendriks,Tommy S. Moore,Ylva S. Olsen,Ylva S. Olsen,Alexandra Steckbauer,Laura Ramajo,Laura Ramajo,Jacob Carstensen,Julie Trotter,Malcolm T. McCulloch +11 more
TL;DR: In this paper, the authors argue that ocean acidification from anthropogenic CO2 emissions is largely an open ocean syndrome and that a concept of anthro- pogenic impacts on marine pH, which is applicable across the entire ocean, from coastal to open-ocean environments, provides a superior framework to consider the multiple components of the anthropogenic perturbation of marine pH trajectories.
Journal ArticleDOI
Salinisation of rivers: An urgent ecological issue
Miguel Cañedo-Argüelles,Ben J. Kefford,Christophe Piscart,Narcís Prat,Ralf B. Schäfer,Claus-Jürgen Schulz +5 more
TL;DR: Management of secondary salinization should be directed towards integrated catchment strategies and identifying threshold salt concentrations to preserve the ecosystem integrity, and the implications of this issue for human society need to be seriously considered.
Journal ArticleDOI
Eutrophication: A new wine in an old bottle?
Morgane Le Moal,Chantal Gascuel-Odoux,Alain Menesguen,Yves Souchon,Claire Etrillard,Alix Levain,Florentina Moatar,Alexandrine Pannard,Philippe Souchu,Alain Lefebvre,Gilles Pinay,Gilles Pinay +11 more
TL;DR: Four French research institutes were mandated to produce a critical scientific analysis on the latest knowledge of the causes, mechanisms, consequences and predictability of eutrophication phenomena and the methodology and the main findings are provided.
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Changes in Atmospheric Constituents and in Radiative Forcing
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