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  • 11
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    Unknown
    PANGAEA
    In:  Supplement to: Kwiatkowski, Lester; Gaylord, B; Hill, Tessa M; Hosfelt, J D; Kroeker, Kristy J; Nebuchina, Yana; Ninokawa, Aaron; Russell, Ann D; Rivest, Emily B; Sesboüé, Marine; Caldeira, Ken (2016): Nighttime dissolution in a temperate coastal ocean ecosystem increases under acidification. Scientific Reports, 6, 22984, https://doi.org/10.1038/srep22984
    Publication Date: 2024-03-15
    Description: Anthropogenic emissions of carbon dioxide (CO2) are causing ocean acidification, lowering seawater aragonite (CaCO3) saturation state (Omega arag), with potentially substantial impacts on marine ecosystems over the 21st Century. Calcifying organisms have exhibited reduced calcification under lower saturation state conditions in aquaria. However, the in situ sensitivity of calcifying ecosystems to future ocean acidification remains unknown. Here we assess the community level sensitivity of calcification to local CO2-induced acidification caused by natural respiration in an unperturbed, biodiverse, temperate intertidal ecosystem. We find that on hourly timescales nighttime community calcification is strongly influenced by Omega arag, with greater net calcium carbonate dissolution under more acidic conditions. Daytime calcification however, is not detectably affected by Omega arag. If the short-term sensitivity of community calcification to Omega arag is representative of the long-term sensitivity to ocean acidification, nighttime dissolution in these intertidal ecosystems could more than double by 2050, with significant ecological and economic consequences.
    Keywords: Alkalinity, total; Aragonite saturation state; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Entire community; EXP; Experiment; Field observation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Horseshoe_Cove; Identification; Net photosynthesis rate; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Potentiometric titration; Primary production/Photosynthesis; Rocky-shore community; Salinity; Temperate; Temperature, water; Time of day; Type
    Type: Dataset
    Format: text/tab-separated-values, 9844 data points
    Location Call Number Limitation Availability
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  • 12
    Publication Date: 2024-03-15
    Description: Ocean acidification is a pervasive threat to coral reef ecosystems, and our understanding of the ecological processes driving patterns in tropical benthic community development in conditions of acidification is limited. We deployed limestone recruitment tiles in low aragonite saturation (Omega arag) waters during an in-situ field experiment at Puerto Morelos, Mexico, and compared them to tiles placed in control zones over a 14-month investigation. The early stages of succession showed relatively little difference in coverage of calcifying organisms between the low Omega arag and control zones. However, after 14 months of development, tiles from the low Omega arag zones had up to 70% less cover of calcifying organisms coincident with 42% more fleshy algae than the controls. The percent cover of biofilm and turf algae was also significantly greater in the low Omega arag zones, while the number of key grazing taxa remained constant. We hypothesize that fleshy algae have a competitive edge over the primary calcified space holders, coralline algae, and that acidification leads to altered competitive dynamics between various taxa. We suggest that as acidification impacts reefs in the future, there will be a shift in community assemblages away from upright and crustose coralline algae toward more fleshy algae and turf, established in the early stages of succession.
    Keywords: Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Aragonite saturation state, standard error; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Community composition and diversity; Coulometric titration; Coverage; Diameter; Duration; Entire community; Event label; EXP; Experiment; Field observation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Growth/Morphology; LATITUDE; LONGITUDE; Nitrate; Nitrate, standard error; North Atlantic; Number; OA-ICC; Ocean Acidification International Coordination Centre; Ojo_Gorgos; Ojo_Laja; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard error; Phosphate; Phosphate, standard error; Potentiometric titration; Replicate; Salinity; Salinity, standard error; Silicate; Silicate, standard error; Site; Temperature, water; Temperature, water, standard error; Tropical; Type; Zone
    Type: Dataset
    Format: text/tab-separated-values, 16432 data points
    Location Call Number Limitation Availability
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  • 13
    Publication Date: 2024-03-15
    Description: Local adaptation can cause predator populations to vary in traits and their effects on prey, but few studies have tested whether divergent predator populations respond differently to acute environmental stressors. We tested how Nucella dogwhelks from 3 populations with natural exposure to distinct environmental regimes in the California Current System altered consumption of mussel prey (Mytilus californianus) in ambient (pH 8.0, 429 µatm partial pressure of CO2 [pCO2]) and acidified (pH 7.6, 1032 µatm pCO2) seawater. Overall, experimental acidification increased the variation in consumption time observed among populations. We found reduced consumption time for the population that experienced more frequent exposure to low pH conditions in nature but not for populations with less prior exposure. Exposure to acidification also altered the individual components of consumption time—search time and handling time—depending on source population. These results indicate that impaired predator performance is not a universal response to acidification, that predation responses to acute acidification can be population specific, and that individual population responses may relate to prior exposure. Our study highlights how population-specific responses to climate change can lead to differences in ecological effects that may restructure prey communities at local scales.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2calc; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Event label; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Hopkins; Laboratory experiment; Lompoc; Mollusca; North Pacific; Nucella ostrina; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric titration; Replicates; Salinity; Salinity, standard deviation; Single species; Site; Soberanes; Species; Species interaction; Spectrophotometric; Temperate; Temperature, water; Temperature, water, standard deviation; Time, standard deviation; Time, standard error; Time in days; Treatment; Type
    Type: Dataset
    Format: text/tab-separated-values, 258 data points
    Location Call Number Limitation Availability
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  • 14
    Publication Date: 2024-03-15
    Description: To understand the effects of ocean acidification (OA) on marine calcifiers, the trade-offs among different sublethal responses within individual species and the emergent effects of these trade-offs must be determined in an ecosystem setting. Crustose coralline algae (CCA) provide a model to test the ecological consequences of such sublethal effects as they are important in ecosystem functioning, service provision, carbon cycling and use dissolved inorganic carbon to calcify and photosynthesize. Settlement tiles were placed in ambient pH, low pH and extremely low pH conditions for 14 months at a natural CO2 vent. The size, magnesium (Mg) content and molecular-scale skeletal disorder of CCA patches were assessed at 3.5, 6.5 and 14 months from tile deployment. Despite reductions in their abundance in low pH, the largest CCA from ambient and low pH zones were of similar sizes and had similar Mg content and skeletal disorder. This suggests that the most resilient CCA in low pH did not trade-off skeletal structure to maintain growth. CCA that settled in the extremely low pH, however, were significantly smaller and exhibited altered skeletal mineralogy (high Mg calcite to gypsum (hydrated calcium sulfate)), although at present it is unclear if these mineralogical changes offered any fitness benefits in extreme low pH. This field assessment of biological effects of OA provides endpoint information needed to generate an ecosystem relevant understanding of calcifying system persistence.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Area; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; CO2 vent; Coast and continental shelf; Entire community; Field observation; Frequency; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Full width at half maximum; Growth/Morphology; Mediterranean Sea; Month; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Rocky-shore community; Salinity; Salinity, standard deviation; Site; Temperate; Temperature, water; Temperature, water, standard deviation; Type; Zone
    Type: Dataset
    Format: text/tab-separated-values, 4663 data points
    Location Call Number Limitation Availability
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  • 15
    Publication Date: 2024-03-15
    Description: The emergent responses of vulnerable species to global change can vary depending on the relative quality of resources available to support their productivity under increased stress, as well as the biotic interactions with other species that may alter their access to these resources. This research tested how seawater pCO2 may interact with seasonal light availability to affect the photosynthesis and calcification of high-latitude coralline algae, and whether the responses of these calcified macroalgae are modified by physical association with a non-calcified seaweed. Through an in situ approach, our study first investigated how current seasonal environmental variation affects the growth of the understory coralline algae Crusticorallina spp. and Bossiella orbigniana in Southeast Alaska's kelp forests. We then experimentally manipulated pH to simulate end-of-century acidification scenarios, light regime to simulate seasonal light availability at the benthos, and pairings of coralline algal species with and without a fleshy red alga to examine the interactive effects of these variables on coralline productivity and calcification. Our results indicate that: 1) coralline species may face net dissolution under projected future winter pH and carbonate saturation state conditions, 2) differences in seasonal light availability in productive, high-latitude waters may not be distinct enough to modify coralline algal net calcification, and 3) association with a non-calcified red alga does not alter the response of these coralline algal species to ocean acidification scenarios. This research highlights the necessity of incorporating locally informed scenarios of environmental variability and community interactions when predicting species' vulnerability to global change.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Alkalinity, total, standard error; Aragonite saturation state; Benthos; Bicarbonate ion; Bossiella orbigniana; Buoyant mass; Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Comment; Containers and aquaria (20-1000 L or 〈 1 m**2); Crusticorallina adhaerens; Crusticorallina muricata; Crusticorallina painei; Date/time end; Date/time start; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Identification; Irradiance; Laboratory experiment; Light; Macroalgae; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Other; Oxygen evolution; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Plantae; Potentiometric titration; Primary production/Photosynthesis; Replicate; Rhodophyta; Salinity; Salinity, standard deviation; Single species; Sitka_Sound; Species; Spectrophotometric; Temperate; Temperature, water; Temperature, water, standard deviation; Treatment; Type; Wet mass
    Type: Dataset
    Format: text/tab-separated-values, 29470 data points
    Location Call Number Limitation Availability
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  • 16
    Publication Date: 2024-03-15
    Description: Early life history stages of marine fishes are often more susceptible to environmental stressors than adult stages. This vulnerability is likely exacerbated for species that lay benthic egg masses bound to substrate because the embryos cannot evade locally unfavorable environmental conditions. Lingcod (Ophiodon elongatus), a benthic egg layer, is an ecologically and economically significant predator in the highly-productive California Current System (CCS). We ran a flow-through mesocosm experiment that exposed Lingcod eggs collected from Monterey Bay, CA to conditions we expect to see in the central CCS by the year 2050 and 2100. Exposure to temperature, pH, and dissolved oxygen concentrations projected by the year 2050 halved the successful hatch of Lingcod embryos and significantly reduced the size of day-1 larvae. In the year 2100 treatment, viable hatch plummeted (3% of normal), larvae were undersized (83% of normal), yolk reserves were exhausted (38% of normal), and deformities were widespread (94% of individuals). This experiment is the first to expose marine benthic eggs to future temperature, pH, and dissolved oxygen conditions in concert. Lingcod are a potential indicator species for other benthic egg layers for which global change conditions may significantly diminish recruitment rates.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Body depth; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Category; Chordata; Coast and continental shelf; Date; Development; Diameter; EXP; Experiment; Fish; Fish larvae, length; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Growth/Morphology; Hatching time; Head, length; Head depth; Identification; Laboratory experiment; Larvae; Length; Mass; Monterey_Peninsula; Nekton; Nitrogen; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Oil globule area; Ophiodon elongatus; Oxygen; Oxygen, dissolved; Oxygen, dissolved, standard deviation; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; pH, standard deviation; Potentiometric; Potentiometric titration; Replicate; Reproduction; Salinity; Salinity, standard deviation; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type; Yolk area; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 179910 data points
    Location Call Number Limitation Availability
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  • 17
    Publication Date: 2024-06-12
    Description: We present measured and estimated seawater physiochemical parameters at CO2 vents and ambient pH sites along the coast of Ischia (Italy) across water depths from 1 m to 40 m. We characterized the physical and chemical parameters in four CO2 venting sites (vent 1 to vent 4) and reference sites with ambient pH with no venting activity (two reference sites for each CO2 vent). SeaFETTM Ocean pH sensors (Satlantic) were deployed to quantify variation in pH at the CO2 vents and their corresponding ambient pH sites at the same depths where benthic surveys were performed from May to October 2019. Before deployment, the SeaFETs were calibrated with ambient pH water. The mean offset between calibration samples and calibrated SeaFET pH was ± 0.006 units (n= 44 water samples), indicating a high-quality pH dataset. The pH sensors were deployed in the recently discovered CO2 vents (Vent 2, Vent 3, Vent 4) and one of the corresponding reference areas with no visible vent activity during the same period (ambient 2a, ambient 3a, ambient 4a). The pH and seawater physicochemical parameters for vent 1 and their corresponding ambient sites (site Castello Aragonese) are also included here. This data from the Castello Aragonese site was originally reported by Kroeker et al., 2011. Discrete water samples were collected using Niskin bottles at the vent and reference areas with ambient pH to measure: i) the carbonate system parameters during the pH sensor deployment, and ii) the dissolved inorganic nutrients. Salinity was measured using a CTD (CTD Sea-Bird Electronics SBE 19 Plus Seacat). Discrete water samples for total alkalinity (AT) were collected within 0.25 m of the pH sensors using standard operating protocols. Precision of the AT measurements of CRMs was 〈 2 μmol kg-1 from nominal values. AT and pHT along with in situ temperature and depth were used to determine the remaining carbonate system parameters for each sampling period using the R package seacarb v3.2.12 (Gattuso et al., 2023).
    Keywords: a1a_amb; a1b_amb; a2a_amb; a2b_amb; a3a_amb; a3b_amb; a4a_amb; a4b_amb; Alkalinity, total; Alkalinity, total, standard deviation; Alkalinity titrator (Mettler Toledo G20S Compact Titrator, Switzerland); Ammonia; Ammonia, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated with seacarb package in R; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate chemistry; Carbonate system computation flag; CO2 vent; CTD, Sea-Bird, SBE 19plus [Seacat]; DATE/TIME; DEPTH, water; Event label; LATITUDE; LONGITUDE; Mediterranean Sea; Nitrate; Nitrate, standard deviation; Nitrite; Nitrite, standard deviation; Number; OA Natural analog; Ocean acidification; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Phosphate; Phosphate, standard deviation; Salinity; Seal QuAAtro SFA Analyzer, Seal Analytical, 800 TM; seawater; Silicate; Silicate, standard deviation; Temperature, water; Type; v1n_elow; v1n_low; v1s_elow; v1s_low; v2_low; v3_low; v4_low
    Type: Dataset
    Format: text/tab-separated-values, 139429 data points
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  • 18
    Publication Date: 2023-02-08
    Description: Predator loss and climate change are hallmarks of the Anthropocene yet their interactive effects are largely unknown. Here, we show that massive calcareous reefs, built slowly by the alga Clathromorphum nereostratum over centuries to millennia, are now declining because of the emerging interplay between these two processes. Such reefs, the structural base of Aleutian kelp forests, are rapidly eroding because of overgrazing by herbivores. Historical reconstructions and experiments reveal that overgrazing was initiated by the loss of sea otters, Enhydra lutris (which gave rise to herbivores capable of causing bioerosion), and then accelerated with ocean warming and acidification (which increased per capita lethal grazing by 34 to 60% compared with preindustrial times). Thus, keystone predators can mediate the ways in which climate effects emerge in nature and the pace with which they alter ecosystems.
    Type: Article , PeerReviewed
    Format: text
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  • 19
    Publication Date: 2022-05-25
    Description: Author Posting. © The Oceanography Society, 2015. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 28, no. 2 (2015): 48-61, doi:10.5670/oceanog.2015.31.
    Description: Oceanic and coastal waters are acidifying due to processes dominated in the open ocean by increasing atmospheric CO2 and dominated in estuaries and some coastal waters by nutrient-fueled respiration. The patterns and severity of acidification, as well as its effects, are modified by the host of stressors related to human activities that also influence these habitats. Temperature, deoxygenation, and changes in food webs are particularly important co-stressors because they are pervasive, and both their causes and effects are often mechanistically linked to acidification. Development of a theoretical underpinning to multiple stressor research that considers physiological, ecological, and evolutionary perspectives is needed because testing all combinations of stressors and stressor intensities experimentally is impossible. Nevertheless, use of a wide variety of research approaches is a logical and promising strategy for improving understanding of acidification and its effects. Future research that focuses on spatial and temporal patterns of stressor interactions and on identifying mechanisms by which multiple stressors affect individuals, populations, and ecosystems is critical. It is also necessary to incorporate consideration of multiple stressors into management, mitigation, and adaptation to acidification and to increase public and policy recognition of the importance of addressing acidification in the context of the suite of other stressors with which it potentially interacts.
    Description: Funding for research on acidification and multiple stressors was provided by NOAACSCOR NA10NOS4780138 to DLB, NASA NNX14AL8 to JS, NSF OCE-1219948 to JMB, NSF OCE-927445 and OCE-1041062 to LAL, NSF EF-1041070 to W-JC, a Linnaeus grant from the Swedish Research Councils VR and Formas to SD, NSF EF-0424599 to SCD, NSF OCE-1041038 to UP, NSF EF-1316113 to BAS, NSF ANT-1142122 to AET, NSF OCE-1316040 to AMT, and the NOAA Ocean Acidification Program Office to BP, LMM, and WCL.
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 20
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    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Publication Date: 2022-10-31
    Description: Dataset: Abalone consumption rates from the Sitka Sound (SSSC)
    Description: To determine the effect of current and future seasonal differences in carbonate chemistry on abalone bioenergetics, this experiment exposed juvenile, non-reproductive (36 ± 5 mm) H. kamschatkana to three pH/pCO2 levels (i.e., pHT 8.1, 7.8, 7.5) for four months in a flow-through system at the Sitka Sound Science Center (SSSC) from June-October 2017. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/855075
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1752600
    Keywords: Feeding ; Energetics ; Abalone ; Ocean acidification ; Diet
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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