Comparative evaluation of sea-urchin larval stage sensitivity to ocean acidification

Passarelli, M.C.; César, Augusto; Riba, Inmaculada; DelValls, T.À.

doi:10.1016/j.chemosphere.2017.06.001

Cited by 16 publications

(3 citation statements)

References 55 publications

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“…Sediment samples were collected from two sampling sites according the contamination levels (Figure 1): low contaminated (Palm Island, PAI) and intermediate contamination (Piaçaguera channel, CPI). Chemical characterization of the sampling sites can be found in [22]. Briefly, seawater elements were below detection limits, 24 • C (±1) of temperature, pH 8.0 ± 1, and a DO below 60% when sampling.…”

Section: Study Area and Sampling Stationsmentioning

confidence: 99%

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Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

et al. 2021

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CO2 enrichment in the marine environment caused by leakages from carbon capture and storage technologies may occur over operational procedures. An integrated approach using weight-of-evidence was applied to assess the environmental risk associated with the acidification caused by CO2 enrichment in coastal sediments from Santos (Brazil). Chemical analyses (metal(loid)s and organic contaminant (e.g., hydrocarbons), toxicity tests (amphipods mortality, sea-urchin embryo-larval development) and macro-benthic community structure alteration assessment were performed with different acidified scenarios (pH 8.0–6.0) for two stations with different contamination degrees. These lines of evidence were statistically analyzed and integrated (multivariate analysis and ANOVA). Results of toxicity showed significant chronic effects starting at pH 7.0 while acute effects were observed starting at pH 6.5. The macro-benthic community integrity showed significant differences for all treatments at the Piaçaguera channel station, considered to be moderately contaminated. Results from the multivariate analysis correlated toxic effects and increase in the mobility of some elements with acidification. Also, the biological indexes were correlated with concentrations of dissolved Zn in seawater. The pH of 6.0 was extremely toxic for marine life due to its high acidification and metal bioavailability. The approach herein identified and discriminated the origin of the degradation caused by the acidification related to the enrichment of CO2.

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Section: Study Area and Sampling Stationsmentioning

confidence: 99%

“…Recent studies have evaluated the relationship between decrease in seawater pH, adverse effects on marine organisms, and changes in the metal concentrations [7,8,[18][19][20][21][22][23]. However, none of these studies have been designed or applied under an integrative point of view using multiples lines of evidence as recommended by [24].…”

Section: Introductionmentioning

confidence: 99%

Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

et al. 2021

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“…Also, it was adapted (iv) to be used for the bioaccumulation and NRRT assays. The laboratory-scale injection systems employed (Figure 2) for ecotoxicological and ecological integrity assessment were described by [16] and chemical analyses, acute and chronic toxicity tests, ecological integrity and metal bioaccumulation are further described in [18,19]. The CO2 injection system proposed mimics acidification by CO2 enrichment in marine ecosystems.…”

Section: Experimental Designmentioning

confidence: 99%

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

et al. 2023

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The Weight-of-Evidence (WOE) approach uses multiple lines of evidence to analyze the adverse effects associated with CO2 enrichment in two stations from the Gulf of Cádiz (Spain) with different contamination degrees. Sediment contamination and metal (loid) mobility, toxicity, ecological integrity, and bioaccumulation from the samples exposed to different acidification scenarios (pH gradient from 8.0 to 6.0) were used in the WOE. The experiments were conducted under laboratory conditions using a CO2-bubbling system. Different integration approaches such as multivariate analyses were used to evaluate the results. The results indicated that the adverse biological effects under pH 6.5 were related to the mobility of dissolved elements (As, Fe, Cu, Ni, and Zn). Furthermore, the pH reduction was correlated to the increase of bioaccumulation of As, Cr, Cu, Fe, and Ni in the tissues of mussels at pH 7.0. The noncontaminated sediment showed environmental degradation related to the acidification at pH values of 7.0; whereas the sediment moderately contaminated showed both environmental risks, caused by acidification and the presence and the increase of the bioavailability of contaminants. The WOE approach supposes an effective tool to identify and distinguish the causes of adverse effects related to the enrichment of CO2 in marine environments.

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Impacts of ocean acidification on hermit crab communities through contrasting responses of Pagurus filholi (de Man, 1887) and Clibanarius virescens (Krauss, 1843)

Tomatsuri

Kon

2019

Aquat Ecol

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Comparative evaluation of sea-urchin larval stage sensitivity to ocean acidification

Cited by 16 publications

References 55 publications

Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

Impacts of ocean acidification on hermit crab communities through contrasting responses of Pagurus filholi (de Man, 1887) and Clibanarius virescens (Krauss, 1843)

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