Share

cover art for 07. The Atlantic Ocean: chasing coccolithophores along the Argentinian coast

AtlantECO podcast

07. The Atlantic Ocean: chasing coccolithophores along the Argentinian coast

Season 1, Ep. 7

Every year there are phytoplankton blooms which take place around the Patagonian shelf and shelf-break, this bloom is so big that you can see it from space!


What are these phytoplankton and why is it important to study them? What was it like to be on board Tara during this part of the Mission Microbiomes? Did they actually find the coccolithophores, the phytoplankton responsible for the bloom?


To know more about these organisms and what was involved in finding them along the shores of South America, we are speaking with Flora Vincent, today’s guest.


Flora is a researcher who was with the Weizmann Institute as she embarked on Tara but has since set up her lab within the European Molecular Biology Laboratory in Germany to carry on studying a particular type of marine microorganisms, the protists.


She was the chief scientist in this leg of the Mission Microbiomes, the Tara Ocean Foundation latest expedition, as the boat followed the Argentinian coast from Buenos Aires to Ushuaia. Flora shares with us her experience onboard as they set off to study a bloom of coccolithophores. From collaborating with the Argentinian Hossay schooner, to chasing the bloom around the ocean and making bets to guess how many they would find… Flora relates her journey and the memories she made along the way and she also tells us about Ana Maria Gayoso, to whom this leg was dedicated.  

 

Additional information and resources:


YouTube videos:

Women in science: the Gayoso experiment.,

Mission Microbiomes: Gayoso experiment, chasing coccolithophores, part 1

Mission Microbiomes: Gayoso experiment, chasing the coccolithophores, part 2

Mission Microbiomes: chasing coccolithophores, part 3  

Blog posts: https://www.atlanteco.eu/post/the-bloom-of-coccolithophores-emiliania-huxleyi 

Wikipedia page: Ana María Gayoso - Wikipedia 


Find out more about AtlantECO on 

Our website: www.atlanteco.eu 

Twitter: @EU_AtlantECO

Instagram: @eu.atlanteco

Facebook: @Atlanteco-EU-107893811437643

YouTube: UCg1fWuQLlpSnnV8aVocHphQ



The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be  made of the information contained therein.



More episodes

View all episodes

  • 8. 52. Artificial intelligence in oceanography

    13:19||Season 3, Ep. 8
    Diving into Ocean Dynamics: A Conversation with Bruno Buongiorno NardelliIn this episode of the AtlantECO podcast, we got the chance to sit down with Bruno Buongiorno  Nardelli, a researcher based in Italy, who has spent over two decades studying the impact of ocean dynamics on climate and marine ecosystems. Join us as we unravel the complexities of his work, understand its significance, and explore what the future holds.Bruno's research focuses on understanding how various oceanic variables contribute to climate change and the behavior of marine ecosystems. Initially, his scientific education centered around geophysical fluid dynamics and remote sensing. Combining these areas, he has developed techniques utilising statistical analysis, physical models, and artificial intelligence to interpret observations and improve our knowledge of the earth’s systems.One core aspect of his research involves collecting and analyzing data from both remote sensing technologies and in situ observations. This approach allows scientists to develop more accurate predictive models and forecasts by understanding underlying processes more thoroughly. He stresses the importance of continuous observation to grasp these complex dynamics, as surface-level data alone cannot provide the full picture.Within the AtlantECO project, Bruno's efforts are directed towards analysing data to understand phytoplankton abundance through ocean color satellite data and separating natural oceanic oscillations from those induced by anthropogenic activities. Such work is vital not just for determining the ocean’s current state but also for predicting future impacts on marine ecosystems and validating climatic models.Bruno mentions that his work extends to shaping future satellite missions for the European Space Agency. These missions aim to improve our observational capabilities, especially concerning the air-sea interface dynamics. Another significant aspect is understanding how mesoscale turbulence helps transport carbon vertically within the ocean—a critical component of the global carbon cycle.Bruno acknowledges that scientific investigation is a never-ending journey. The continuous cycle of discovery and inquiry is central to advancing our understanding of ocean dynamics and their broader implications. Once AtlantECO ends, the data and insights generated will serve as a foundation for future research and projects.The ultimate goal is to provide robust data and sophisticated tools that will enable policymakers to make informed decisions regarding oceanic and environmental stewardship. Thus, Bruno and his colleagues' work is deeply intertwined with the broader mission of sustaining and protecting ocean health in this era of rapid climate change.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 7. 51. Exploring the Potential of the Atlantic Ocean: What is Bioprospecting?

    22:17||Season 3, Ep. 7
    In this episode, we delve into the fascinating world of bioprospecting with Tonje Heggeset and Giang-Son Nguyen from SINTEF, a renowned research organisation in Norway. In conversation with Tonje and Giang-Son, we uncover the essence of bioprospecting, its applications, and its significance within the AtlantECO project. First, we ask… what is bioprospecting? Bioprospecting involves exploring various natural sources like plants, animals, and microorganisms for commercially valuable substances such as medicinal drugs, biochemicals, and other materials. In the context of the project, the focus is on microorganisms, including bacteria and fungi, discovered in environments rich in biodiversity. These microorganisms can potentially yield new antibiotics, anti-cancer compounds, and industrial enzymes, contributing to significant advancements in medicine and industry.We then transition into the methodologies of bioprospecting. Our guests explain that there are two primary approaches: functional screening and genome/metagenome sequencing. Functional screening involves searching for specific activities in nature, such as antibiotics. On the other hand, genome sequencing entails identifying genes and predicting their functions using bioinformatics tools.Within the AtlantECO project, SINTEF is in charge of molecular bioprospecting, focusing on discovering new enzymes relevant to stakeholders. This involves data mining from various sources, functional screening, and creating a database of genetic markers for biological sensors. The aim is to provide valuable enzyme candidates for diagnostics, molecular research, and other applications, contributing to the blue economy.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 6. 50. Modelling a constantly moving Ocean

    16:05||Season 3, Ep. 6
    In this episode of the AtlantECO podcast, we explore the journeys and research of early-stage researchers involved in the AtlantECO project. Today, we meet Darshika Manral, a PhD candidate in physical oceanography at Utrecht University in the Netherlands.Darshika’s connection with the ocean came later in her career. She began in Information Technology with a Bachelor’s degree and worked as a software engineer. However, a sabbatical brought her to marine mammal research in the Lakshadweep Islands, igniting her passion for the ocean. This pivotal experience led her to pursue an Erasmus Mundus master's in marine science, blending her programming skills with ocean studies.Darshika investigates how ocean currents transport substances like plankton, plastics, nutrients, and heat using Lagrangian modelling. This method tracks the movement of virtual particles, providing insights into marine connectivity and helping predict future ocean changes. Her research plays a key role in AtlantECO’s mission to understand plankton distribution and marine ecosystems better.Within AtlantECO, Darshika's work on seascape and connectivity focuses on plankton networks and environmental constraints. Combining her model outputs with real-world observations, she collaborates with biologists to offer a comprehensive view of oceanic processes, supporting better marine conservation strategies.In her final PhD year, Darshika aims to refine her models further and strengthen collaborations. She is open to continuing in academia or any ocean research-related field, with a keen interest in science communication. Her advice for budding marine scientists? Embrace interdisciplinary research, seek community support, and remain observant of the natural world.Darshika’s message is clear: anyone can develop a connection with the ocean by staying curious and observant. Her inspiring journey underscores the importance of passion and openness to new challenges. We thank Darshika for sharing her insights and wish her success in her future endeavors.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 5. 49. Ocean cultures in South Africa

    16:56||Season 3, Ep. 5
    In the latest AtlantECO podcast we are exploring the fascinating realm of ocean cultures with our guest, Leila Nefdt from the University of Cape Town in South Africa.Leila brings a wealth of experience in marine biology and a deep commitment to ocean conservation and public engagement. Her journey from marine ecologist to science communicator offers unique insights into bridging the gap between scientific knowledge and community awareness.In our conversation, Leila shares her passion for nature, particularly the ocean, and her dedication to fostering ocean awareness through initiatives like See the Bigger Picture and her role at MARIS. She highlights the importance of connecting diverse communities with marine science and conservation efforts.We delve into the concept of ocean cultures, a term evolving from ocean literacy to encompass a broader understanding of the ocean's influence on society and vice versa. Leila explains how this shift in terminology reflects the rich tapestry of beliefs, traditions, and interactions that shape people's relationship with the ocean, especially in South Africa.Despite South Africa's coastal abundance, Leila notes the disparities in ocean access and perception among different populations. While some communities rely on the ocean for their livelihoods and spiritual practices, others face barriers like limited swimming skills or geographic distance from the coast.Turning to AtlantECO's contributions, Leila discusses ongoing efforts to enhance ocean literacy and engagement in South Africa. From developing educational resources to assessing marine science curricula, AtlantECO aims to bridge the gap between scientific knowledge and local needs.Leila emphasizes the importance of collaboration and cultural sensitivity in promoting ocean stewardship. By fostering dialogue between scientists, educators, and communities, AtlantECO seeks to empower individuals to become advocates for marine conservation.With continued effort and collaboration, we can nurture a deeper connection to the ocean and ensure its protection for generations to come.Stay tuned for more updates on AtlantECO's initiatives and how you can get involved in shaping our ocean future.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 4. 48. Strengthening biodiversity observation in support of decision making

    31:24||Season 3, Ep. 4
    In this episode of the AtlantECO podcast we delve into the Marco Bolo project with guest Nicolas Pade, the project coordinator. Marco Bolo is a research and innovation initiative funded by the European Union's Horizon Europe program. Nicolas shares his personal connection to the ocean, rooted in childhood experiences and a lifelong passion for marine biology.The discussion highlights the need to enhance biological observation in marine sciences, which often focus on physics and chemistry. Nicolas stresses the importance of integrating biology into observation efforts, aiming to create a robust base for biological data collection. He emphasises the necessity of open data practices and stakeholder engagement to ensure the data collected are relevant and utilised effectively.The Marco Bolo project addresses these challenges through three main components:Data Interoperability: Implementing high standards for data interoperability, making data open and accessible.Data Collection and Application: Developing robust protocols for data collection, applying collected data to inform environmental indicators and essential ocean variables.Stakeholder Engagement: Engaging stakeholders through surveys, community of practice meetings, and collaboration with other projects to ensure alignment with user needs.Nicolas highlights the importance of collaboration and coordination with other projects, acknowledging the complexity of marine observation and the diverse needs of stakeholders. The project aims to bridge the gap between research and decision-making, striving to create a global impact in marine science.Looking ahead, the project anticipates further stakeholder engagement, including community of practice meetings and stakeholder events. They also plan to address challenges such as adapting data to different indicators and expanding their team through recruitment efforts.Overall, the Marco Bolo project represents a concerted effort to advance marine science and foster collaboration within the research community, with the ultimate goal of improving our understanding and management of the oceans.Find out more on MARCO BOLO: https://marcobolo-project.eu/ More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 3. 47. Shallow sea mining

    18:45||Season 3, Ep. 3
    In the latest episode of the AtlantECO podcast, we delve into one of our case studies, which aims to apply the knowledge and resources developed in the project to existing challenges in shallow sea diamond mining. Our guest, Natasha Karenyi, sheds light on the considerations necessary for developing and implementing environmental regulations of coastal areas.Natasha, a marine biologist and lecturer at the University of Cape Town (UCT), shares her journey toward studying and researching marine biology. With a childhood curiosity sparked by high school biology classes and a love for swimming, Natasha's passion for the ocean led her to specialise in benthic ecology and pursue a PhD at the Nelson Mandela University.In our case study, we focus on two countries, Namibia and South Africa, both of which have keen interests in diamond and phosphate mining, as well as petroleum extraction. However, these countries have different policy frameworks, data limitations, and understandings of their marine systems. Natasha highlights the specific challenges and needs within each country and the importance of addressing them to develop effective environmental regulations.Supporting Policy Making through AtlantECO: to address these challenges, AtlantECO implements various strategies. In Namibia, they collaborate with the Namibian Ministry of Fisheries and Marine Resources and Debmarine Namibia to provide baseline benthic information for informed policy decisions. In South Africa, they work with the Department of Mineral Resources to develop guidelines for environmental management of ocean mining.Through research and collaborative efforts, Natasha and her team have identified several challenges that hinder effective environmental impact assessments (EIAs) and marine spatial planning (MSP) processes. These challenges include the lack of consideration for cumulative and indirect impacts, insufficient inclusion of social and economic aspects, and limited access to information; these aspects were all included in the recommendations made recently. As we progress, we aim to further support the different stakeholders in their endeavour to develop EIA processes, streamline reporting standards across sectors, and enhance the integration of social and economic considerations.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 2. 46. Mega marine heatwaves in the North Atlantic

    21:49||Season 3, Ep. 2
    In the latest episode of the AtlantECO Podcast, we delve into the critical topic of mega heatwaves in the Atlantic withguest Thomas Frölicher. The conversation covers the causes, consequences, monitoring, and future expectations of theseincreasingly observed phenomena, including the recent heatwave observed in the North Atlantic.Thomas Frölicher, originally from landlocked Switzerland, shares his unique journey into oceanography. Growing up with a curious mind inspired by his father's interest in physics, Thomas eventually found his passion for environmental science. His focus on atmospheric physics led him to explore oceanography during his PhD, where he investigated the variations in oceanic oxygen concentration and its connection to human-caused global warming.We then discuss marine heatwaves, defined as periods of persistently warm ocean temperatures. Thomas explains that these events are becoming more prevalent globally, affecting ecosystems, weather patterns, and land conditions. The North Atlantic, in particular, is experiencing mega heatwaves, with temperatures significantly higher than ever recorded. Thomas discusses potential causes of marine heatwaves, such as enhanced air-sea heat uptake, changing ocean currents, and various other factors. The global ocean currently faces record-high temperatures, with about 30% experiencing a marine heatwave. The North Atlantic stands out with temperatures 0.5 degrees higher than previous records, raising concerns among scientists.To understand these heat waves, scientists rely on high-temporal-resolution datasets from satellites, ARGO floats, buoys, and ocean models. Thomas emphasises the importance of collaboration among researchers with diverse expertise to comprehensively analyse the multitude of factors contributing to the current temperature anomalies. We then touch upon the consequences of mega heat waves on marine life and ecosystems, and Thomas highlights the sensitivity of ecosystems to high temperatures, leading to damages worth billions of dollars in industries such as fisheries and tourism. In AtlantECO project, Thomas and his team aim to assess the impact of a combination of multiple extreme events in the Atlantic, providing valuable data for managing ocean resources and mitigating risks.More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 1. 45. Navigating the Ocean's Wonders with Mayibongwe Buthelezi

    16:34||Season 3, Ep. 1
    A Journey from Nongoma to the Atlantic Ocean: Mayi, currently in the second year of his Ph.D. at the University of Pretoria, takes us through his remarkable journey. Born and raised in the small village town of Nongoma in Kwazulu Natal, South Africa, Mayibongwe's connection with the ocean began unexpectedly during a school trip in grade 10 or 11. Despite being inland, he pursued microbiology, eventually participating in prestigious cruises, exploring the Atlantic Ocean's marginal ice zone.Microbial Marvels in the Ocean: Mayi's research focuses on marine microbial communities, specifically bacteria and single-cell algae. He delves into the intricate world of microbial ecology, emphasising the importance of understanding microorganisms' role in processes like carbon sequestration and nitrogen cycling. His work, centred around Dimethylsulfoniopropionate (DMSP), seeks to uncover microbial physiological responses to environmental fluctuations. Mayibongwe explains the significance of studying microorganisms in the ocean, highlighting how these tiny organisms, with their enormous impact, play a crucial role in maintaining Earth's balance by cycling essential gases and nutrients.Sailing the Atlantic Meridional Transect (AMT): Mayibongwe shares his experience aboard the RRS Discovery during the latest AMT. The AMT, an annual multidisciplinary program, conducts biological, chemical, and physical oceanographic research between the UK and the South Atlantic. Mayibongwe's role involved collecting seawater samples for his Ph.D., contributing valuable data to the AtlantECO project. Mayibongwe reflects on the unique experience of being the only representative from his region, the joy of encountering penguins in Falklands Island, and the unexpected birthday celebration during the crossing of the line. He expresses gratitude to his supervisor, Prof. Makhalanyane, and the AtlantECO programme for exposing him to these extraordinary opportunities.Future Aspirations: Looking ahead, Mayi acknowledges current collaborators like Prof. Jonathan Todd and his research group at the University of Norwich, emphasising the importance of collaboration in DMSP research. His immediate goals include completing his Ph.D., publishing papers, and continued engagement with the AtlantECO program. Ultimately, Mayibongwe aspires to establish his own research group and collaborate with scientists globally.Stay tuned for the next episode and more engaging conversations with scientists shaping the future of marine research. More on AtlantECO: www.atlanteco.eu  The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.
  • 21. 44. Exploring plankton biodiversity

    22:53||Season 2, Ep. 21
    In this podcast episode, we are starting a new series looking at the Early Stage Researchers in AtlantECO. Our guest in the first episode of this series is Fabio Benedetti,  marine scientist specialising in plankton biodiversity and its role in ecosystem functioning and climate regulation. Fabio, who is based at ETH Zurich, explains that his fascination lies in studying the small creatures in the ocean, particularly plankton. He has been researching plankton diversity for a decade, focusing on understanding their distribution, patterns, and their future trajectory. Fabio's research falls within the field of macroecology and biogeography, where he maps the biodiversity of plankton. By analysing observational data collected over the years using data mining and machine learning tools, he extracts hidden information and maps indicators of plankton diversity in space and time. He emphasises the importance of combining disparate datasets to gain new insights that might have been missed when working with individual datasets.Fabio's work contributes to a better understanding of the biodiversity and ecological dynamics of plankton in the ocean. His research helps uncover valuable information about the distribution and characteristics of these vital organisms, ultimately aiding in the conservation and protection of marine ecosystems.Within AtlantECO, Fabio’s main role is to aggregate and curate plankton observation data from various sources. This data includes information on different plankton species, their diversity, and productivity. By bringing together diverse datasets, the aim is to create a comprehensive understanding of plankton biodiversity in the Atlantic Ocean. The aggregated data is then made available to the scientific community for further research and analysis. In collaboration with colleagues in the project, Fabio also develops statistical pipelines and mapping packages to extract valuable information from the aggregated data. By generating maps of plankton biodiversity and productivity, scientists can identify global patterns and study interactions between different plankton species. These maps serve as a foundation for developing indicators to monitor and predict the response of plankton to future changes in climate variables. With ongoing climate change and rising anthropogenic CO2 emissions, understanding how plankton biodiversity and production will respond to these changes is crucial.In addition to his data aggregation and mapping activities, Fabio also supervises early-stage researchers, explaining his passion for mentoring future ocean scientists and his desire to find a permanent position in academia or a related field where he can continue to support and inspire young researchers. Fabio also offers advice to those starting their careers in marine sciences, so make sure to listen to the full episode to benefit from his wisdom!Get in touch with Fabio: fabio.benedetti@usys.ethz.ch  More on AtlantECO: www.atlanteco.eu  Logo by Louise MerquiolMusic by No Pilot The AtlantECO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862923. This output reflects only the author’s view and the European Union cannot be held responsible for any use that may be made of the information contained therein.