Archive for the 'Meetings' Category

Upcoming webinar: Integrated modeling of OAH: supporting management in the California Current

Date: Tuesday, September 3, 2019 7:00-9:00 pm CEST

Description: The purpose of this webinar is to share an update on a 6-year effort to build an integrated model of the California Current System and apply it to investigations of ocean acidification and hypoxia, including local anthropogenic inputs and climate change. Panelists will:
provide an update on the status of the modeling system;
share early examples of model applications; and,
discuss how the model investments are already being leveraged to applications beyond acidification and hypoxia.

Jim McWilliams, UCLA Department of Earth and Atmospheric Sciences
Curtis Deutsch, University of Washington School of Oceanography
Fayçal Kessouri, Biogeochemistry Department, Southern California Coastal Water Research Project
Daniele Bianchi, UCLA Department of Earth and Atmospheric Sciences

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Upcoming webinar: Ocean Acidification in the northwestern Gulf of Mexico

GCAN Webinar Series Presents: Dr. Xinping Hu & Dr. Leticia Barbero

Date: August 21st @ 1:00pm EST

Description: A five-year (2013-2018) time-series of the carbonate chemistry data (pCO2, pH, and carbonate saturation state) collected in surface waters at the Flower Garden Banks National Marine Sanctuary in the northwestern Gulf of Mexico (nwGOM) revealed variable temporal trends. pC O2 and pH showed significant positive (dpC O 2/dt = 5.0±1.1 μatm yr-1) and negative trends (dpH/dt = – 0.0040±0.0010 yr-1), respectively. Both trends were significantly greater than those observed in the open ocean. However, carbonate saturation states with respect to aragonite (Ωarag) did not exhibit statistically significant changes. The difference between these trends (or the lack of) may be partially due to the increase in sea surface temperature (0.25±0.09˚C yr-1), in addition to CO2 induced ocean acidification. In contrast,
significant decadal acidification (ΔpH ~ -0.1) in the subsurface waters (~50-250 m) w as observed in the broader nwGOM based on three separate cruises (2007, 2016, and 2017). Substantial accumulation of respirational CO2 along with atmospheric CO2 uptake may have both contributed to this acidification, but with many unknowns. We will discuss an upcoming project funded by the NOAA’s Ocean Acidification Program (OAP) that targets the ocean acidification problem in the nwGOM.

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Registration open: A Changing Arctic conference, 2-5 June 2020, Tromso, Norway

The FRAM Centre, Nature Climate Change, and Nature Reviews Earth and Environment are pleased to present

A Changing Arctic
June 2-5, 2020
Clarion Hotel The Edge, Tromsø, Norway

Robust evidence now exists for anthropogenically-forced shifts in the Earth’s environment. Observations in the Arctic reveal dramatic reductions in the extent and thickness of the sea ice, rising atmospheric temperatures, widespread permafrost degradation and ocean acidification. These changes bring with them implications for biology, ecosystem services and society in general.
Full understanding of current and projected Arctic environmental change is becoming an imperative in order to minimize and manage corresponding impacts. This conference aims to provide a forum for the three main themes of:

Land – incorporating ecological impacts, permafrost, and landscape evolution
Ocean (coastal and open) – incorporating physical changes, ocean acidification, and ecological impacts
The Future — covering social aspects and including mitigation, adaptation, exploration, and management

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Upcoming webinars hosted by the International Alliance to Combat Ocean Acidification

Webinar 1: Coral Reefs in a High CO2 World: How are coral reefs experiencing acidification combined with additional stressors and what can governments do about it?

With presentations from:
NOAA Ocean Acidification Program
Brazilian Ocean Acidification Network (tentative)
Coral Reef Alliance
State of Hawaii Coral Program Lead

Webinar 2: Unveiling OA Action Plans: Members provide an overview of process and content for creating their government lead OA Action Plans including the tangible actions they are taking to respond to the threat of ocean acidification.

With presentations from:
New Zealand OA Community
Government of the Netherlands
State of Oregon
City of Vancouver, Canada

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Session on ocean acidification, 36th International Geological Congress, 2-8 March 2020, Delhi, India

The 36th International Geological Congress will be held on 2-8 March 2020 in Delhi, India, and will include a session on ocean acidification under the theme “Oceans in a Changing World”.

Session name: Response of Marine Organisms to Ocean Acidification

Session description: Over the last century, extensive anthropogenic activities on earth led to an unprecedented increase in the atmospheric CO2 concentration and thus warming our climate. The surface oceans absorb a substantial part of the anthropogenically emitted CO2 and increased accumulation of CO2 in the surface ocean waters is increasing H+ and bicarbonate ion (HCO3-1) concentrations, coupled with decreasing pH [acidification (OA)] and carbonate ion (CO3-2) concentrations. The major shift in dissolved inorganic carbon speciation in surface seawater is affecting calcium carbonate saturation state, which is vital for numerous marine calcifying organisms. There have also been examples of resilient species under low pH condition. Autotrophic organism, like phytoplankton may respond differently to this ocean changes since increasing CO2 may be beneficial to them as a substrate for photosynthesis. Our oceans also experiencing warming and hence, under collective (multi-) stress may become deleterious for marine biota. Further, ocean warming is resulting in major changes in ocean physics which may further change nutrient availability and light penetration. These may have potential to impact the entire food chain, fisheries resources and carbon cycling. This symposium intends to include field and laboratory studies on extent of ocean acidification and its impact on marine ecology, with particular emphasis on Indian waters.

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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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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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Ocean acidification in the IPCC AR5 WG II

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