Archive for the 'Events' Category

C-CAN webinar: genetics of larval fitness in the Pacific oyster: responses to acidified seawater and temporally dynamic selection processes

Date/time: Wednesday, July 17, 2019 at 1pm PT (4pm EST)

Presented by Dr. Evan Durland, Tjärnö – Sven Lovén Centre for Marine Sciences, University of Gothenburg, Sweden and hosted by Teri King, Washington Sea Grant.

Description: The Pacific oyster is the most widely farmed shellfish species worldwide and represents the backbone of a $250M/year shellfish industry in the Pacific Northwest United States (PNW). Oysters are highly fecund, capable of producing tens of millions of offspring per spawning event but larvae routinely suffer low rates of survival to juvenile stage. Over the past decade in the PNW, ocean acidification (OA) has additionally reduced survival of larval oysters, both for those spawned in commercial hatcheries for aquaculture operations and, likely, in naturalized oyster populations in this region. A considerable amount of research has focused on the physiological impacts of low pH/high pCO2 seawater on shell formation and the early development of oyster larvae but relatively little, by contrast, is known about the chronic effects of acidified seawater on larval development and survival through to settled juvenile ‘spat’. Furthermore, the effect that larval development and survival in acidified seawater has on the genetic composition of oyster larvae largely unknown.

This webinar will focus on recent work investigating the genetic components of larval oyster survival, both in ‘normal’ and OA seawater conditions. This work combines broad, stock-based, comparisons of larval fitness through settlement stage from domesticated and ‘wild’ stocks of oysters in the PNW along with highly resolved temporal patterns of genetic change during larval development. By integrating the results from several scopes of investigation, we can begin to gain a more comprehensive view of the prominent role that genetics plays in determining not only the overall survival rates of oyster larvae but how complex mechanisms of genetic selection also may accommodate an increased adaptive potential for this species to persist in challenging aquatic environments.

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Upcoming webinar: ocean acidification – high-frequency long -term measurements of pH and deployment best practices

Time: Thursday 18 July 2019, 1:00pm Eastern Time (ET)

Description: Ocean acidification is happening. We can predict it through climate models, see it in pitted calcium carbonate shells, and feel it through aquaculture collapse. However, pH sensors are in dire need of an overhaul before we can confidently track this problem with the necessary quantitative accuracy. While the prevailing technology—glass electrode pH sensors—has served us well for years, inherent limitations of these instruments prevent them from taking part in the long-term installations that have redefined how ocean scientists gather data.

Keep up to date on the latest changes in ocean pH measurement technology by attending Sea-Bird Scientific’s upcoming webinar on ISFET pH sensors. During this live Webinar, our Senior Chemist Charles Branham, Ph.D. will cover technical information and advantages of using ISFET pH sensors. Our Content Development Manager Greg Ikeda will talk about best practices for deploying and maintaining the SeaFET V2 and SeapHOx V2, two moored ISFET pH sensors offered by Sea-Bird Scientific.

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AGU session on ocean acidification: Marine-based management of atmospheric carbon dioxide and ocean acidification

The AGU Fall Meeting will be held on 9-13 December 2019 in San Francisco, CA. The meeting will include a session on ocean acidification titled “Marine-based management of atmospheric carbon dioxide and ocean acidification”.

Session description: Ocean biology, chemistry and physics play a central role in naturally controlling oceanic/atmospheric CO2 levels. To avoid major global climate impacts and ocean acidification, reducing CO2 emissions is no longer sufficient; CO2 removal from the ocean/atmosphere system is now also required. This session will explore ways of restoring, enhancing, and augmenting naturally-occurring marine processes for regulating oceanic and atmospheric CO2 and ocean acidity levels. Specific examples include, but are not limited to: Blue Carbon, macrophyte introduction, aquaculture, permaculture, nutrient enrichment, marine BECCS, enhanced weathering, alkalinity addition, enhanced upwelling/downwelling, and chemical or physical seawater CO2 stripping, conducted at local to global scales. In addition to technical aspects, presentations on the economic, regulatory, policy, geopolitical, governance, legal and ethical implications of the preceding are also invited.

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Special session on ocean acidification at WIOMSA Symposium

The 11th WIOMSA Symposium will be held on 1-6 July 2019 in Mauritius, and will include a special session on 5 July focused on ocean acidification efforts in East Africa.

Description of the session:
The 1-day OA session will offer an opportunity for East African relevant stakeholders attending the 11th WIOMSA symposium at the University of Mauritius on 5 July to understand OA challenges while maintaining ecosystem health as well as livelihoods for local communities.

OA research and monitoring priorities for the conservation and management of the ocean and its resources will be highlighted as below:
1. To motivate government, stakeholders and civil society to change their attitudes toward CO2 emissions and the Ocean through a better understanding of the relationship between actions (or lack of), CO2 emissions, OA and
consequences for the ocean and human health.

2. To promote research, innovation and development to minimize and anticipate impacts of OA.

3. To present the OA White Paper for East Africa to a wide audience and include new concepts and ideas.

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Upcoming webinar: Community of Ocean Action on Ocean Acidification

Time: Wednesday 12 June, 9:00am Eastern Time (ET)

Description: The third webinar of the Community of Ocean Action on Ocean Acidification will take place on Wednesday 12 June at 9:00am Eastern Time. Dr Libby Jewett, Director of NOAA’s Ocean Acidification Program and co-chair of the Global Ocean Acidification Observing Network, GOA-ON, (VC16542) will present on GOA-ON status, progress and lessons learned. The presentation will be followed by a discussion about opportunities for the COA on OA to work together to advance progress on SDG 14.3.

For information on how to join the webinar, please contact the OA-ICC: OAICC.Contact-Point(at)

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Webinar: the Ocean Acidification Data Stewardship (OADS) and the Ocean Carbon Data System (OCADS) projects

When: Wednesday, May 8, 2019 6:00 PM – 7:00 PM CEST

Description: Liqing Jiang, a chemical oceanographer at NOAA/National Centers for Environmental Information (NCEI) and Associate Research Scientist at University of Maryland will discuss two data management projects residing at NCEI: the Ocean Acidification Data Stewardship (OADS) project and the Ocean Carbon Data System (OCADS) Project. OADS features rich metadata management and covers all types of ocean acidification data, including chemical, biological & model output. OCADS focuses on inorganic ocean carbon data and serves data producers from the entire international ocean carbon community.

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Workshop announcement: underway and sensor CO2 data and metadata quality control procedures

When: 1-3 April 2019

Where: Sopot, Poland

Description: It is a fundamental requirement when investigating major issues like global change to have absolute confidence in the quality of the data utilized in the process. Due to the fundamental role of surface ocean CO2 data in such investigations, significant effort has gone over the past
decade into developing techniques and methodologies that allow globally coherent quality control of this data. The goal of this workshop is to update the workshop participants on those protocols through a series of lectures and practicals given in the context of the most comprehensive surface ocean CO2 data set, the Surface Ocean CO2 Atlas.

Participation: Registration is free and on a “first come – first served” basis to welcome 20 participants at maximum. To register please send an email by 22 March 2019 to Maciej Telszewski ( and Karol Kulinski ( with your name, title and full affiliation as well as a brief description of your post in relation to the workshop agenda.

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Ocean acidification in the IPCC AR5 WG II

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