Local drivers of the seasonal carbonate cycle across four contrasting coastal systems

McGrath, Triona; McGovern, Evin; Gregory, Clynton; Cave, Rachel

doi:10.1016/j.rsma.2019.100733

Cited by 8 publications

(7 citation statements)

References 83 publications

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“…We therefore estimated HF pH calc for 2016, which varied from 8.00 during winter to 8.20 during summer ( Figure 8A). These values were within the range of the in situ pH estimated between 7.97 and 8.35 by Marrec (2014) in the WEC and with pH values reported by McGrath et al (2019) in Irish coastal waters (between 8.00 and 8.30). Unsurprisingly, pH calc exhibited opposite dynamics to pCO 2 and was strongly related to the tidal signal.…”

Section: Short-scale Variability Of the Co 2 System In Coastal Swecsupporting

confidence: 89%

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Gac¹,

Marrec²,

Cariou³

et al. 2020

Front. Mar. Sci.

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Section: Short-scale Variability Of the Co 2 System In Coastal Swecsupporting

confidence: 89%

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Gac¹,

Marrec²,

Cariou³

et al. 2020

Front. Mar. Sci.

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“…, McGrath et al. ). The most corrosive carbonate environment in the Puget Sound estuary in Washington State, for example, commonly occurs in the winter when many species are reproductively inactive, while favorable conditions are in the spring when gametogenesis coincides with phytoplankton blooms (Pelletier et al.…”

Section: Introductionmentioning

confidence: 99%

“…For many temperate bivalve species, this occurs seasonally in the spring (Bayne 1976). Yet, challenging periods of acidification and warming can occur during other times of the year (Evans et al 2013, Joesoef et al 2015, McGrath et al 2019. The most corrosive carbonate environment in the Puget Sound estuary in Washington State, for example, commonly occurs in the winter when many species are reproductively inactive, while favorable conditions are in the spring when gametogenesis coincides with phytoplankton blooms (Pelletier et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Spencer

Venkataraman

Crim

et al. 2020

Ecological Applications

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Predicting how populations will respond to ocean change across generations is critical to effective conservation of marine species. One emerging factor is the influence of parental exposures on offspring phenotype, known as intergenerational carryover effects. Parental exposure may deliver beneficial or detrimental characteristics to offspring that can influence larval recruitment patterns, thus shaping how populations and community structure respond to ocean change. Impacts of adult exposure to elevated winter temperature and pCO2 on reproduction and offspring viability were examined in the Olympia oyster (Ostrea lurida) using three populations of adult, hatchery‐reared O. lurida, plus an additional cohort spawned from one of the populations. Oysters were sequentially exposed to elevated temperature (+4°C, at 10°C), followed by elevated pCO2 (+2,204 μatm, at 3,045 μatm) during winter months. Male gametes were more developed after elevated temperature exposure and less developed after high pCO2 exposure, but there was no impact on female gametes or sex ratios. Oysters previously exposed to elevated winter temperature released larvae earlier, regardless of pCO2 exposure. Those exposed to elevated winter temperature as a sole treatment released more larvae on a daily basis but, when also exposed to high pCO2, there was no effect. These combined results indicate that elevated winter temperature accelerates O. lurida spermatogenesis, resulting in earlier larval release and increased production, with elevated pCO2 exposure negating effects of elevated temperature. Altered recruitment patterns may therefore follow warmer winters due to precocious spawning, but these effects may be masked by coincidental high pCO2. Offspring were reared in common conditions for 1 yr, then deployed for 3 months in four estuarine bays with distinct environmental conditions. Offspring of parents exposed to elevated pCO2 had higher survival rates in two of the four bays. This carryover effect demonstrates that parental conditions can have substantial ecologically relevant impacts that should be considered when predicting impacts of environmental change. Furthermore, Olympia oysters may be more resilient in certain environments when progenitors are pre‐conditioned in stressful conditions. Combined with other recent studies, our work suggests that the Olympia may be more equipped than other oysters for the challenge of a changing ocean.

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“…The reason why in winter there are more available data is because the nutrients and in particular the levels of Dissolved Inorganic Nitrogen (DIN), reach their seasonal maximum values, due to the decrease of plants and algal growth (Hogan 2019). Furthermore, because winter is also the rainfall season, the intense weathering from rocks increases TA (McGrath et al 2019). To perform the PCA and to understand if the freshwater input can in uence the coastal carbonate chemistry, only the samples included in the rst 10 meters depth were selected.…”

Section: Marine Institute Database: Carbonate System and Nutrients Va...mentioning

confidence: 99%

Freshwater contribution along Irish coastal areas: chemical data and geological aspects

Guerra

2022

Preprint

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Open ocean carbonate chemistry is altered by the dissolution of atmospheric CO2 in seawater. Up to 40% of anthropogenic CO2 emissions have been dissolved in the surface ocean, driving changes in the marine carbonate system and promoting ocean acidification. In the open ocean Total Alkalinity (TA) shows strong correlation with salinity and temperature due to the conservative nature of its constituents there. However, in coastal areas the interaction with the continent makes these relations much more complex. Freshwater inputs can provide an additional source of TA and Dissolved Inorganic Carbon (DIC) to the coast or lower them through dilution. The aim of this study is to understand the impact of land-ocean interactions over the coastal carbonate system and therefore, over local ocean acidification processes. The Marine Institute has provided a large dataset with several surveys along the Irish coastline, from 2009 to 2018, measuring TA, DIC and nutrients (nitrate NO3−, nitrite NO2−, phosphate PO43− and silicate SiO4−). In order to understand whether the watershed geology or the land-usage can influence the coastal chemistry, the original dataset was at first reduced to have a set of variables comparable in different locations. Principal Component Analysis (PCA) was then performed. Contrasting continental influence over the coastal carbonate system was observed, which was related to the geology of the catchment area. Elucidating how land-ocean interactions affect the coastal carbonate system would help to understand coastal resilience to ocean acidification and thus support better management of coastal resources.

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Local drivers of the seasonal carbonate cycle across four contrasting coastal systems

Cited by 8 publications

References 83 publications

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations

Freshwater contribution along Irish coastal areas: chemical data and geological aspects

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Local drivers of the seasonal carbonate cycle across four contrasting coastal systems

Cited by 8 publications

References 83 publications

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Cardinal Buoys: An Opportunity for the Study of Air-Sea CO2 Fluxes in Coastal Ecosystems

Carryover effects of temperature and pCO2 across multiple Olympia oyster populations

Freshwater contribution along Irish coastal areas: chemical data and geological aspects

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Product

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Carryover effects of temperature and pCO₂ across multiple Olympia oyster populations