13 - 16 September 2022 | Lima-Perú

Universidad Nacional Pedro Ruiz Gallo



7 May 2022 Abstract submission deadline
7 May 2022 Application for Travel support
7 June 2022 Abstract and travel support applicants notified
30 June 2022 Early registration closes
19 August 2022 Regular registration closes
7 September 2022 On-site registration


The 5th Symposium on the Ocean in a High-CO2 World

The 5th Symposium on the Ocean in a High-CO2 World is being organized by the Pedro Ruiz Gallo National University in cooperation with the International Atomic Energy Agency (IAEA). This Symposium follows the symposia in Paris in 2004, Monaco in 2008, Monterey in 2012, and Hobart in 2016, which were all key events for the international community of researchers studying ocean acidification and related stressors. The 5th symposia will maintain the traditional focus of the four previous symposia and look at ocean acidification and associated impacts on marine organisms, ecosystems, and biogeochemical cycles. Ocean acidification will be considered in combination with other global changes such as warming and deoxygenation. The Symposium is inter-disciplinary and contributions are expected to detail advances in observations, modelling, field and laboratory studies. Dedicated sessions will emphasize processes and impacts as well as consequences for humans and their potential responses through policy and management.


The 5TH INTERNATIONAL SYMPOSIUM ON THE OCEAN IN A HIGH CO2 WORLD benefits from the support of the Prince Albert II of Monaco Foundation”

Dr. Jorge Oliva Nuñez

Universidad Nacional Pedro Ruíz Gallo

Dear colleagues and friends from all over the world:

We are very happy to have you in Lima, Peru. We will all enjoy the rich history, gastronomy, drinks, music and dances of our wonderful country.

See you soon friends!


Perú is an economically stable country and its capital Lima has different districts, being Miraflores and San Isidro, the most modern and peaceful for the development of the event and accommodation. Lima has a 9.5 million inhabitants.

More info




Calle Bellavista 133, Miraflores

Miraflores - Lima, Perú



The main objective is to achieve a better understanding of the impacts of ocean acidification on different marine ecosystems, as well as on the aquaculture industry; promote the participation of interest groups and the socialization of the problem, mainly the representatives of governments and decision makers, with the aim of adopting a state policy to deal with the acidification of the ocean, in accordance with UN SDG 14 on Life Below Water whose target 14.3 says “minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels”The 5th International Symposium will bring together scientists, academics, government representatives, aquaculture entrepreneurs and fish farmers, and students from many countries around the world to present, analyze and evaluate the most relevant results related to ocean acidification and its multiple stress factors, the situation current ocean acidification and various approaches to mitigate, forecast and model capacities, as well as experimentation.

COVID-19 virus update

With continuing uncertainty for travel due to the ongoing COVID-19 pandemic, the local committee took the decision to proceed with a hybrid format (in-person/online) for the 5th International Symposium on the Ocean in High CO2 World. This is a great opportunity to meet in person, and also to connect online, increasing the participation across the globe for our global participants.

Who Should Attend:

  • Scientist and Researches
  • Government representatives
  • Policy makers within government
  • Students
  • Educators











  • Paleo to present indicators of ocean acidification (paleo proxies and modelling).
  • Biogeochemical change at coastal to global scales.
  • The role of coastal processes in modifying regional rates of ocean acidification.
  • Time of emergence of trends above natural variability.
  • Attribution of drivers of change – e.g. role of anthropogenic carbon vs temperature, freshwater influence.
  • Variability at organism level (e.g. micro boundary layer, variability within ecosystems).
  • Advances in modelling ocean acidification e.g. seasonal to decadal, results from CMIP6, and downscaled or high-resolution projections.
  • Utilizing biogeochemical tracers to understand carbonate chemistry and ecosystem responses, e.g. calcification, dissolution, de-oxygenation.
  • Biogeochemical feedbacks on ocean acidification (DMS, trace metals, and nutrient cycling).
  • Novel sensors and platforms for the detection of ocean acidification.
  • Ocean acidification and other anthropogenic stressors from pollutants to harvesting.
  • Tolerance and resistance: from species to populations.
  • Acclimation and adaptation, e.g. plasticity, heritability, microevolution.
  • Integration across biological scales: physiology to populations.
  • Energetic costs, Mechanisms of calcification and energetic costs.
  • Drivers and consequences of variability (sex, reproductive etc).
  • Range shifts.
  • Physiological effects of climate change multiple stressors.
  • From local to global: linking process studies and observations, e.g. meta-analysis.
  • Biogeographical responses to ocean acidification and climate change (resilience, changes in biodiversity patterns at regional and global scales, refugia, species invasion).
  • Present and future impacts on food webs and energy flow through ecosystems.
  • Community and ecosystem responses to OA and the interaction with other stressors, including regional comparisons.
  • Understanding predator prey relationships, competition, nutritional quality.
  • Ecological effects of climate change multiple stressors
  • Modeling and forecasting changes of multi-stressors and their impact from organisms to ecosystems.
  • Upwellings. Spatial and temporal variability, low pH and Low oxygen conditions biogeochemistry. Projections and vulnerability under climate change and potential impacts. Role as source or sink of CO2.
  • Estuaries/ high CO2 coastal system (mangroves …). Variability and the role in the carbon system.
  • Polar regions.
  • Deep-sea.
  • CO2 vents.
  • Oxygen minimum zones.
  • Impacts and risks to fisheries, aquaculture and food security.
  • Economic and societal impacts from local to global scales.
  • Adapting human communities, economies, industries.
  • Managing ecosystems for Ocean Acidification (e.g. MPAs, harvesting).
  • Identifying OA refuges and strengthening ecosystem resilience.
  • Climate Intervention approaches and solutions (e.g. geo-engineering).
  • Present and future international (co-ordination) programs e.g. GOA-ON.
  • Decade of Ocean Science for sustainable development and SDG14.3.
  • National and regional OA Action plans.
  • Initiatives (e.g. Commonwealth Blue Charter, Headline Climate Indicator).
  • Decision making frameworks and implementation strategies.
  • Capacity building and regional coordination.
  • Indigenous engagement and knowledge.

Plenary Speakers

All keynote presentations will be live-streamed and recorded. Links will be provided later. The Monaco Association on Ocean Acidification (AMAO; https://www.fpa2.org/amao-en.html ) is gratefully acknowledged for its support

Meet the Plenary Speakers

We are delighted to have experts from across the globe presenting their latest findings at the 5th International Symposium on the Ocean in a High-CO2 World.

Dr. Sarah Cooley

Ocean Conservancy


Dr. Dimitri Gutiérrez

Instituto del Mar del Perú


Dr. Samantha Siedlecki

University of Connecticut


Dr. Dalin Shi

Environmental Research Center Xiamen University


Dr. Guillermo DÍaz-Pulido

Griffith University


Dr. Cristian Vargas

Universidad de Concepción


Dr. Frédéric Gazeaun

CNRS and Sorbonne University


Ms. Jessie Turner

International Alliance to Combat Ocean Acidification


Steve Widdicombe

Plymouth Marine Laboratory


The Ocean in a High-CO2 World

Ocean Acidification

International Science Symposium Series


If you would like to attend the Symposium and register in person, you must pay the on-site registration fee in cash on site. We recommend you email [email protected] with your name, email and affiliation to receive additional information.

We will be streaming all plenary sessions live to the High CO2 YouTube page.

For invoices/ receipts for registration

Please contact [email protected] indicating if the receipt is for a natural person or for an institution with the following information:

Natural person Organization/Institution
  1. Full name
  2. Passport number
  1. Name of Organization
  2. Organization number
  3. Address
  4. Full name of participant


Type of Participation Deadline of Early In-Person Registration Deadline of In-Person Regular Registration On-site Registration In Lima
Before June 30, 2022 August 19, 2022 September 12, 2022
Delegate (*) $300 USD $350 USD + 10$ transaction fee $400 USD + 10$ transaction fee
Graduate Students $250 USD $300 USD + 10$ transaction fee $350 USD + 10$ transaction fee
Undergraduate Student $200 USD $250 USD + 10$ transaction fee $280 USD + 10$ transaction fee


Type of Participation Early Online Registration Regular Online Registration
Before June 30, 2022 August 19, 2022
Delegate (*) $150 USD + 10$ transaction fee $150 USD + 10$ transaction fee
Graduate Students $100 USD $100 USD
Undergraduate Student $50 USD $50 USD
** Participants from Least developing nations Free Free
Access to plenary seminars only Free Free


Would you like to be a sponsor?

We thank the following organisations for their sponsorship of the symposium.

Principal Sponsors

Gold Sponsor

Silver Sponsor

Bronze Sponsor

Contact Us

this will answer your questions

The Organizing Committee: [email protected]

Abstract questions: [email protected]

Registration questions: [email protected]

General questions: [email protected]

Calle Bellavista 133, Miraflores
Lima - Perú

Universidad Nacional Pedro Ruiz Gallo

Universidad Nacional Pedro Ruiz Gallo

Abour our university

Convention Center

Our venue

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