Intraspecific Variability in the Response of the Edible Mussel Mytilus chilensis (Hupe) to Ocean Acidification

Duarte, Cristián; Navarro, Jorge M.; Acuña, Karin; Torres, Rodrigo; Manríquez, Patricio H.; Lardies, Marco A.; Vargas, Cristian A.; Lagos, Nelson A.; Aguilera, Victor M.

doi:10.1007/s12237-014-9845-y

Cited by 50 publications

(33 citation statements)

References 60 publications

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“…Comparative studies using species with geographic ranges spanning large environmental gradients in pH/p CO2 may help us to understand how long-term adaptation to different environments can modulate individual sensitivity to additional stressors 27,28 . However, there are few studies that have assessed how responses to changing pH/p CO2 conditions vary among individuals (that is, within the same species) from geographically distant populations [29][30][31] . The heterogeneous coastal ecosystem across the long latitudinal range off Chile (more than 35° and 6,000 km of coast) provides suitable conditions and a natural laboratory in which we can evaluate intraspecific variability in ocean acidification responses using individuals from different geographic areas and experiencing contrasting oceanographic regimes.…”

Section: Discussionmentioning

confidence: 99%

“…Low p CO2 conditions for all these experiments were nearly atmospheric p CO2 conditions at that time period (that is, 347-398 μ atm). They include several taxa, such as the small planktonic copepod A. tonsa 43 , newly hatched planktonic larvae and juveniles of the benthic gastropod Concholepas concholepas 29,30,44 , adult individuals of the intertidal mussel Perumytilus purpuratus 30 and juveniles of the intertidal/subtidal mussel Mytilus chilensis 31 .…”

Section: Nature Ecology and Evolutionmentioning

confidence: 99%

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Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity

et al. 2017

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Global stressors, such as ocean acidification, constitute a rapidly emerging and significant problem for marine organisms, ecosystem functioning and services. The coastal ecosystems of the Humboldt Current System (HCS) off Chile harbour a broad physical-chemical latitudinal and temporal gradient with considerable patchiness in local oceanographic conditions. This heterogeneity may, in turn, modulate the specific tolerances of organisms to climate stress in species with populations distributed along this environmental gradient. Negative response ratios are observed in species models (mussels, gastropods and planktonic copepods) exposed to changes in the partial pressure of CO 2 (p CO2 ) far from the average and extreme p CO2 levels experienced in their native habitats. This variability in response between populations reveals the potential role of local adaptation and/or adaptive phenotypic plasticity in increasing resilience of species to environmental change. The growing use of standard ocean acidification scenarios and treatment levels in experimental protocols brings with it a danger that inter-population differences are confounded by the varying environmental conditions naturally experienced by different populations. Here, we propose the use of a simple index taking into account the natural p CO2 variability, for a better interpretation of the potential consequences of ocean acidification on species inhabiting variable coastal ecosystems. Using scenarios that take into account the natural variability will allow understanding of the limits to plasticity across organismal traits, populations and species.

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Section: Discussionmentioning

confidence: 99%

Section: Nature Ecology and Evolutionmentioning

confidence: 99%

Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity

et al. 2017

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“…However, evidence for this hypothesis is circumstantial ( 9 , 12 , 13 ). We used two different approaches to study the adaptation potential of mussels to ocean acidification.…”

Section: Discussionmentioning

confidence: 99%

Naturally acidified habitat selects for ocean acidification–tolerant mussels

et al. 2017

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“…Therefore, the flux of riverine corrosive waters might have significant implications for marine calcifiers inhabiting river‐influenced coastal sites. Low Ω aragonite has been demonstrated to impact negatively the calcification and growth of the Chilean mussel Mytilus chilensis [ Duarte et al, ] and the larval ingestion rate of the Chilean gastropod Concholepas concholepas [ Vargas et al, ]. Moreover, Aguilera et al [] have shown that low‐pH freshwater discharge might impair the reproductive outcome in the neritic copepod Acartina tonsa in Southern Chile.…”

Section: Discussionmentioning

confidence: 99%

Influences of riverine and upwelling waters on the coastal carbonate system off Central Chile and their ocean acidification implications

et al. 2016

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A combined data set, combining data from field campaigns and oceanographic cruises, was used to ascertain the influence of both river discharges and upwelling processes, covering spatial and temporal variation in dissolved inorganic carbon (DIC) and aragonite saturation state. This work was conducted in one of the most productive river-influenced upwelling areas in the South Pacific coasts (36°S). Additionally, further work was also conducted to ascertain the contribution of different DIC sources, influencing the dynamics of DIC along the land-ocean range. Six sampling campaigns were conducted across seven stations at the Biobío River basin, covering approximately 200 km. Three research cruises were undertaken simultaneously, covering the adjacent continental shelf, including 12 sampling stations for hydrographic measurements. Additionally, six stations were also sampled for chemical analyses, covering summer, winter, and spring conditions over 2010 and 2011. Our results evidenced that seaward extent of the river plume was more evident during the winter field campaign, when highest riverine DIC fluxes were observed. The carbonate system along the river-ocean continuum was very heterogeneous varying over spatial and temporal scales. High DIC and pCO 2 were observed in river areas with larger anthropogenic effects. CO 2 supersaturation at the river plume was observed during all campaigns due to the influence of low pH river waters in winter/spring and high-pCO 2 upwelling waters in summer. δ 13 C DIC evidenced that main DIC sources along the river and river plume corresponded to the respiration of terrestrial organic matter. We have linked this natural process to the carbonate saturation on the adjacent river-influenced coastal area, suggesting that Ω aragonite undersaturation in surface/subsurface waters is largely modulated by the influence of both river discharge and coastal upwelling events in this productive coastal area. Conditions of low Ω aragonite might impact negatively physiological traits for marine organisms, such as bivalves, gastropods, and crustaceans. Therefore, local populations from river-influenced sites could be inherently more tolerant to ocean acidification than organisms living in regions with lower Ω aragonite variability. VARGAS ET AL.

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Intraspecific Variability in the Response of the Edible Mussel Mytilus chilensis (Hupe) to Ocean Acidification

Cited by 50 publications

References 60 publications

Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity

Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity

Naturally acidified habitat selects for ocean acidification–tolerant mussels

Influences of riverine and upwelling waters on the coastal carbonate system off Central Chile and their ocean acidification implications

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