A snapshot of ocean acidification research

Dupont, Sam; Pörtner, Hans‐Otto

doi:10.1007/s00227-013-2282-9

Cited by 53 publications

(41 citation statements)

References 42 publications

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“…As a result of human activity, the atmospheric CO 2 concentrations increased from 280 ppmv in 1750 (pre-industrials atmospheric CO 2 levels) to over 391 ppmv in 2011 (IPCC, 2013), corresponding to a reduction of 0.1 units in the oceans pH (Caldeira and Wickett, 2003;IPCC, 2013), and it is expected that pH will further decrease from 0.06 to more than 0.3 units within the end of the 21st century (IPCC, 2013). Several studies revealed that the pH decrease, associated with changes in seawater chemistry, seem to have negative effects on marine ecosystems, namely on bivalves, crustaceans and fish survival capacity, physiology, growth, reproductive capacity, behaviour and development (among others, Campbell et al, 2014;Doney et al, 2012;Dupont and P€ ortner, 2013;Garrard et al, 2013;Lane et al, 2013;Langenbuch and P€ ortner, 2003;Langenbuch et al, 2006;Michaelidis et al, 2005;Widdicombe and Spicer, 2008;Wickens, 1984). Additionally, reproductive capacity may also be affected by water acidification (Widdicombe and Spicer, 2008).…”

Section: Introductionmentioning

confidence: 97%

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

Pires

Figueira

Moreira

et al. 2015

Marine Environmental Research

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Section: Introductionmentioning

confidence: 97%

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

Pires

Figueira

Moreira

et al. 2015

Marine Environmental Research

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“…While sponge diversity was found to increase at low pH sites (pH 7.8–7.9) in the Mediterranean (Goodwin et al ., ), sponge diversity decreased at low pH sites (pH 7.73–8.00) in Papua New Guinea (Fabricius et al ., ), although particular species did become significantly more abundant at sites with active CO 2 bubbling (Morrow et al ., ). Although these studies provide some insight into sponge responses to a changing climate, the co‐occurrence of OW and OA requires studies that consider these factors concurrently (Dupont & Pörtner, ).…”

Section: Introductionmentioning

confidence: 99%

Interactive effects of temperature and pCO₂ on sponges: from the cradle to the grave

Bennett

Altenrath

Woods

et al. 2016

Global Change Biology

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As atmospheric CO concentrations rise, associated ocean warming (OW) and ocean acidification (OA) are predicted to cause declines in reef-building corals globally, shifting reefs from coral-dominated systems to those dominated by less sensitive species. Sponges are important structural and functional components of coral reef ecosystems, but despite increasing field-based evidence that sponges may be 'winners' in response to environmental degradation, our understanding of how they respond to the combined effects of OW and OA is limited. To determine the tolerance of adult sponges to climate change, four abundant Great Barrier Reef species were experimentally exposed to OW and OA levels predicted for 2100, under two CO Representative Concentration Pathways (RCPs). The impact of OW and OA on early life-history stages was also assessed for one of these species to provide a more holistic view of species impacts. All species were generally unaffected by conditions predicted under RCP6.0, although environmental conditions projected under RCP8.5 caused significant adverse effects: with elevated temperature decreasing the survival of all species, increasing levels of tissue necrosis and bleaching, elevating respiration rates and decreasing photosynthetic rates. OA alone had little adverse effect, even under RCP8.5 concentrations. Importantly, the interactive effect of OW and OA varied between species with different nutritional modes, with elevated pCO exacerbating temperature stress in heterotrophic species but mitigating temperature stress in phototrophic species. This antagonistic interaction was reflected by reduced mortality, necrosis and bleaching of phototrophic species in the highest OW/OA treatment. Survival and settlement success of Carteriospongia foliascens larvae were unaffected by experimental treatments, and juvenile sponges exhibited greater tolerance to OW than their adult counterparts. With elevated pCO providing phototrophic species with protection from elevated temperature, across different life stages, climate change may ultimately drive a shift in the composition of sponge assemblages towards a dominance of phototrophic species.

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“…It is the combination of information collected in laboratory experiments, field observations (monitoring), CO 2 vents, laboratory mesocosms, FOCE, and modeling that will allow for the required mechanistic understanding and predictive power to be provided (Dupont and Pörtner, 2013).…”

Section: Discussionmentioning

confidence: 99%

Free-ocean CO<sub>2</sub> enrichment (FOCE) systems: present status and future developments

et al. 2014

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Abstract. Free-ocean CO 2 enrichment (FOCE) systems are designed to assess the impact of ocean acidification on biological communities in situ for extended periods of time (weeks to months). They overcome some of the drawbacks of laboratory experiments and field observations by enabling (1) precise control of CO 2 enrichment by monitoring pH as an offset of ambient pH, (2) consideration of indirect effects such as those mediated through interspecific relationships and food webs, and (3) relatively long experiments with intact communities. Bringing perturbation experiments from the laboratory to the field is, however, extremely challenging. The main goal of this paper is to provide guidelines on the general design, engineering, and sensor options required to conduct FOCE experiments. Another goal is to introduce xFOCE, a community-led initiative to promote awareness, provide resources for in situ perturbation experiments, and build a user community. Present and existing FOCE systems are briefly described and examples of data collected presented. Future developments are also addressed as it is anticipated that the next generation of FOCE systems will include, in addition to pH, options for oxygen and/or temperature control. FOCE systems should become an important experimental approach for projecting the future response of marine ecosystems to environmental change.

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A snapshot of ocean acidification research

Cited by 53 publications

References 42 publications

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

Interactive effects of temperature and pCO₂ on sponges: from the cradle to the grave

Free-ocean CO<sub>2</sub> enrichment (FOCE) systems: present status and future developments

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A snapshot of ocean acidification research

Cited by 53 publications

References 42 publications

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

The effects of water acidification, temperature and salinity on the regenerative capacity of the polychaete Diopatra neapolitana

Interactive effects of temperature and pCO2 on sponges: from the cradle to the grave

Free-ocean CO&lt;sub&gt;2&lt;/sub&gt; enrichment (FOCE) systems: present status and future developments

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Product

Resources

About

Interactive effects of temperature and pCO₂ on sponges: from the cradle to the grave

Free-ocean CO<sub>2</sub> enrichment (FOCE) systems: present status and future developments