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Management of local stressors can improve the resilience of marine canopy algae to global stressors


Strain, EMA and van Belzen, J and van Dalen, J and Bourma, TJ and Airoldi, L, Management of local stressors can improve the resilience of marine canopy algae to global stressors, PLoS ONE, 10, (3) Article e0120837. ISSN 1932-6203 (2015) [Refereed Article]


Copyright Statement

Copyright 2015 Strain et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.1371/journal.pone.0120837


Coastal systems are increasingly threatened by multiple local anthropogenic and global climatic stressors. With the difficulties in remediating global stressors, management requires alternative approaches that focus on local scales. We used manipulative experiments to test whether reducing local stressors (sediment load and nutrient concentrations) can improve the resilience of foundation species (canopy algae along temperate rocky coastlines) to future projected global climate stressors (high wave exposure, increasing sea surface temperature), which are less amenable to management actions. We focused on Fucoids (Cystoseira barbata) along the north-western Adriatic coast in the Mediterranean Sea because of their ecological relevance, sensitivity to a variety of human impacts, and declared conservation priority. At current levels of sediment and nutrients, C. barbata showed negative responses to the simulated future scenarios of high wave exposure and increased sea surface temperature. However, reducing the sediment load increased the survival of C. barbata recruits by 90.24% at high wave exposure while reducing nutrient concentrations resulted in a 20.14% increase in the survival and enhanced the growth of recruited juveniles at high temperature. We conclude that improving water quality by reducing nutrient concentrations, and particularly the sediment load, would significantly increase the resilience of C. barbata populations to projected increases in climate stressors. Developing and applying appropriate targets for specific local anthropogenic stressors could be an effective management action to halt the severe and ongoing loss of key marine habitats.

Item Details

Item Type:Refereed Article
Keywords:local stressors, global stressors, marine canopy algae, climate stressors, marine habitats
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Strain, EMA (Dr Beth Strain)
ID Code:141414
Year Published:2015
Web of Science® Times Cited:34
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2020-10-19
Last Modified:2021-09-22
Downloads:15 View Download Statistics

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