NANO News 21

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Due to local resources and interests, NANO- Table 1 - Instruments employed for EOV measurements at NANO-DOAP sampling sites. DOAP sampling sites may use different instruments to collect data (Table 1). This is a common challenge for analyses of data from mul�ple sampling programmes. At this phase, the project is collec�ng informa�on on precision and accuracy of instruments in all its sta�ons as well as calibra�on and valida�on exercises. As soon as this is completed, NANODOAP will be able to correct the values and perform its first intersta�on comparison of data. Outreach

Figure 3 - NANO-DOAP webinars presented in April, May and June 2021. The recordings are available at POGO’s Youtube channel.

NANO-DOAP ac�vi�es regarding outreach this quarter included three webinars. For webinars, we invited NANO members and friends, to present their research in subjects related to the project scope. These were held in April, May and June and recordings of the presenta�ons and discussions are available at POGO’s Youtube channel. In June, par�cipants held an internal mee�ng to discuss strategies for standardising sample collec�ons and valida�ng the intersta�on analysis. A second mee�ng is scheduled in the next quarter for parcipant and GOA-ON member, Dr. Carla Berghoff (Argen�na), to present approaches for pH and DO measurements and for new members to introduce themselves and their sampling sta�ons. Extension of the network

A call was launched during the quarter to invite NANO members, especially from countries in Africa, La�n America and South-East Asia, to join the NANO-DOAP network of monitoring sta�ons. We have received 20 valid applica�ons from 14 countries and wish we were able to accept them all. As a result of this call, nine new sta�ons joined the project in the past few months (see green points in Figure 1).

Baja California (México) sta�on - NANO Global Project (NANO-DOAP): A bit of history Adriana Gonzalez-Silvera* and Monica Torres Beltrán University of Baja California, Mexico *Alumnus profile: h�ps://nf-pogo-alumni.org/profile/agonzal/

The NANO Global Project (NANO-DOAP) has the objec�ve of monitoring the levels of ocean acidifica�on and deoxygena�on worldwide based on data collected from a series of coastal sta�ons. One of these sta�ons is in Todos Santos Bay, Ensenada (Baja California, Mexico) where the Phytoplankton Ecology Team (POPEYE) have overseen this and other projects. As a team (Table 1), our goal has been understanding the phytoplankton community structure and dynamics and to monitor its variability along the Baja California Peninsula and beyond, to be further linked to acidifica�on and deoxygena�on. However, the par�cipa�on of POPEYE in NANO projects began earlier. In 2007, POPEYE joined the La�n-American ANTARES network with the main objec�ve of contribu�ng to studying long-term changes in coastal ecosystems, focusing on the phytoplankton community. This monitoring effort was shared by other research groups along La�n America as part of the 2012-2017 NANO La�n America Regional project “Variability in phytoplankton pigments and bio-op�cal measurements at the La�n America ANTARES-ChloroGIN �me series sta�ons“. The 10-year (2007-2016) monitoring of phytoplankton pigments and taxonomic composi�on at the ANTARES sta�on, has observed a decrease in phytoplankton biomass due to the influence of the recent Pacific Warm Anomaly (2014) and El Niñ o 2015–2016, with the consequent decrease of phytoplankton size structure.

Contact us: info@nf-pogo-alumni.org NANO website: www.nf-pogo-alumni.org

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