Effects of elevated water temperature, reduced salinity and nutrient enrichment on the metabolism of the coral Turbinaria mesenterina

Faxneld, Suzanne; Jörgensen, Tove Lund; Tedengren, Michael

doi:10.1016/j.ecss.2010.05.008

Cited by 27 publications

(6 citation statements)

References 46 publications

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“…These reinforcing effects were seen with ultraviolet radiation (Anderson et al, 2001) and pathogen growth (Bally & Garrabou, 2007) and virulence (Banin et al, 2003) as well as fishing (by causing shifts in community structure or abundance; however, the aggregate response of reef fish populations to temperature increases appears to be complex and variable, resulting in changes in physiology, behavior, and recruitment (Lo-Yat et al, 2011;Feary et al, 2010;Gardiner et al, 2010)). Potentially reinforcing effects were seen between increased temperature and cyclone and hurricane frequency (Pielke, 2005;Anthes et al, 2006), and for low-salinity stress (Faxneld et al, 2010), although the former is controversial (Hayne & Chappell, 2001;Hetzinger et al, 2008;Kumar et al, 2009) and there is conflicting evidence of the latter (Porter et al, 1999). Potentially mitigating stressor interactions were seen for crown-of-thorns starfish, which appear to have a relatively narrow temperature tolerance during their larval stage (Johnson & Babcock, 1994), with adult mortality occurring at temperatures of 33-34°C (Yamaguchi, 1974).…”

Section: Most Influential Stressors: Sedimentation Storms Temperaturementioning

confidence: 94%

Evidence for multiple stressor interactions and effects on coral reefs

Ban

Graham

Connolly

2014

Global Change Biology

311

269

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Concern is growing about the potential effects of interacting multiple stressors, especially as the global climate changes. We provide a comprehensive review of multiple stressor interactions in coral reef ecosystems, which are widely considered to be one of the most sensitive ecosystems to global change. First, we synthesized coral reef studies that examined interactions of two or more stressors, highlighting stressor interactions (where one stressor directly influences another) and potentially synergistic effects on response variables (where two stressors interact to produce an effect that is greater than purely additive). For stressor-stressor interactions, we found 176 studies that examined at least 2 of the 13 stressors of interest. Applying network analysis to analyze relationships between stressors, we found that pathogens were exacerbated by more costressors than any other stressor, with ca. 78% of studies reporting an enhancing effect by another stressor. Sedimentation, storms, and water temperature directly affected the largest number of other stressors. Pathogens, nutrients, and crown-of-thorns starfish were the most-influenced stressors. We found 187 studies that examined the effects of two or more stressors on a third dependent variable. The interaction of irradiance and temperature on corals has been the subject of more research (62 studies, 33% of the total) than any other combination of stressors, with many studies reporting a synergistic effect on coral symbiont photosynthetic performance (n = 19). Second, we performed a quantitative meta-analysis of existing literature on this most-studied interaction (irradiance and temperature). We found that the mean effect size of combined treatments was statistically indistinguishable from a purely additive interaction, although it should be noted that the sample size was relatively small (n = 26). Overall, although in aggregate a large body of literature examines stressor effects on coral reefs and coral organisms, considerable gaps remain for numerous stressor interactions and effects, and insufficient quantitative evidence exists to suggest that the prevailing type of stressor interaction is synergistic.

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Section: Most Influential Stressors: Sedimentation Storms Temperaturementioning

confidence: 94%

Evidence for multiple stressor interactions and effects on coral reefs

Ban

Graham

Connolly

2014

Global Change Biology

311

269

View full text Add to dashboard Cite

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“…Stress-resistance, however, depends on coral species and further on the combined effect of the above mentioned stressors (Coles and Jokiel, 1978;Faxneld et al, 2010;Xiubao et al, 2009). Low salinity reduces the ability of coral to survive short-term exposure to elevated water temperature (Coles and Jokiel, 1978).…”

Section: Spatial and Temporal Variabilitymentioning

confidence: 95%

Inter-annual variability of wet season freshwater plume extent into the Great Barrier Reef lagoon based on satellite coastal ocean colour observations

Schroeder

Devlin

Brando

et al. 2012

Marine Pollution Bulletin

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“…A greater amount of rainfall increases the flux of nutrients from urban and rural environments into the ocean, fertilizing coastal areas (VIAROLI et al, 2005;FAXNELD et al, 2010). Moreover, the growth of the human population and the increasing use of coastal areas represent the main sources of nutrient enrichment in marine environments, especially from sewage discharges (HALPERN et al, 2008;TEICHBERG et al, 2010;LUO et al, 2012).…”

Section: Global and Local Threatsmentioning

confidence: 99%

“…However, these factors have been occurring concomitantly, with other factors related to various processes associated with further changes in climate and other sources of stress. Thus, the significant future increase in rainfall (FAXNELD et al, 2010) as predicted to occur in south-central South America (IPCC, 2014) should act in parallel to the first two factors, changing environmental conditions, especially in coastal regions (see SCHERNER et al, 2012).…”

Section: Global and Local Threatsmentioning

confidence: 99%

Rhodoliths in Brazil: Current knowledge and potential impacts of climate change

et al. 2016

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Financial Support: CNPQ, CAPES, FAPESP.Rhodolith beds are important marine benthic ecosystems, representing oases of high biodiversity among sedimentary seabed environments. They are found frequently and abundantly, acting as major carbonate 'factories' and playing a key role in the biogeochemical cycling of carbonates in the South Atlantic. Rhodoliths are under threat due to global change (mainly related to ocean acidification and global warming) and local stressors, such as fishing and coastal run-off. Here, we review different aspects of the biology of these organisms, highlighting the predicted effects of global change, considering the additional impact of local stressors. Ocean acidification (OA) represents a particular threat that can reduce calcification or even promote the decalcification of these bioengineers, thus increasing the ecophysiological imbalance between calcareous and fleshy algae. OA should be considered, but this together with extreme events such as heat waves and storms, as main stressors of these ecosystems at the present time, will worsen in the future, especially if possible interactions with local stressors like coastal pollution are taken into consideration. Thus, in Brazil there is a serious need for starting monitoring programs and promote innovative experimental infrastructure in order to improve our knowledge of these rich environments, optimize management efforts and enhance the needed conservation initiatives. AbstrActDescriptors: Algae, Conservation, Brazil, Global warming, Pollution, Ocean acidification.Bancos de rodolitos formam oásis de alta biodiversidade em ambientes marinhos de fundo arenoso. Os rodolitos são formados por espécies bioconstrutoras, que fornecem abrigo e substrato para diversas e abundantes comunidades bentônicas. No Brasil esses ambientes são frequentes, representando grandes "fábricas" de carbonato com um papel fundamental no ciclo biogeoquímico do carbono no Atlântico Sul. Estes organismos e ambientes estão ameaçados pelas mudanças climáticas (principalmente a acidificação dos oceanos e o aquecimento global) e pelos estressores locais, tais como os impactos causados pela pesca e as descargas costeiras de efluentes. Neste trabalho fazemos uma revisão da taxonomia, filogenia e biologia desses organismos, com destaque para os efeitos previstos das mudanças climáticas e suas relações com estressores locais. A maioria dos estudos acerca dos efeitos das mudanças climáticas e da acidificação dos oceanos em algas calcárias relatam respostas negativas não só no crescimento e na calcificação, mas também no processo de fotossíntese, espessura da parede celular, reprodução e sobrevivência das algas. Este cenário reforça a necessidade em estabelecer uma consistente rede de trabalho para proporcionar um programa de monitoramento amplo e de longo prazo, bem como infraestrutura para avaliações experimentais de impactos locais e regionais das mudanças climáticas e dos estressores locais em bancos de rodolitos.

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Effects of elevated water temperature, reduced salinity and nutrient enrichment on the metabolism of the coral Turbinaria mesenterina

Cited by 27 publications

References 46 publications

Evidence for multiple stressor interactions and effects on coral reefs

Evidence for multiple stressor interactions and effects on coral reefs

Inter-annual variability of wet season freshwater plume extent into the Great Barrier Reef lagoon based on satellite coastal ocean colour observations

Rhodoliths in Brazil: Current knowledge and potential impacts of climate change

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