SARGADOM’s Post

🎓 We are happy to share that Laura Pacho successfully defended her thesis titled ‘Foraminiferal diversity and novel trace elements for carbonate system proxies’ on November 6th. Congratulations Laura! 🎉 In seven chapters, with subjects ranging from trace metals, carbon chemistry, ecology and evolution, Laura shows where our research field is heading to. The tiny shells of foraminifera left a valuable archive, going back hundreds of millions of years, within our seafloors. When correctly interpreted, this archive shows how and when the climate on our planet had changed. This can be done since the chemical composition of these shells depends on seawater characteristics (for example temperature and pH). In her thesis, Laura describes field studies and culturing experiments to find novel ways to use the chemical composition of foraminiferal shells. With a personal note from Lennart de Nooijer: We will miss you, Laurita! You have been a wonderful colleague: everyone at the OCS department is sad to see you leave. Over the last five years, we have always seen a vibrant, cheerful and hardworking student. Gert-Jan Reichart, your promotor, and I are impressed with your energy, determination and cheerfulness and we hope that these will continue to guide you in your career! #oceanscience #oceanography #ocs #nioz #marineresearch #marinescience #foraminifera #tracemetals #carbonchemistry #ecology #evolution

The teams from UiT- The Arctic University of Norway, Ocean Census and REV Ocean have successfully dived into the Jøtul vent field. These hydrothermal vents serve as extraordinary islands in the abyss, hosting unique species found nowhere else on Earth. The extreme environment of the Jøtul vent field offers a rare glimpse into the resilience and adaptability of life. Studying and protecting this site is crucial for understanding its ecological significance and the broader implications for biodiversity in the ocean. Aurora ROV is being daily on this mission to collect water, sediment, biology, geology, and chemistry samples. The vent field is a hydrothermally active area 3000 m deep, along the Knipovich Ridge. It was discovered in 2022 by researchers from the University of Bergen (UiB). All the data from previous expeditions have brought us back to this location to get a better understanding of this extreme environment. #AuroraROV #Extreme24 #OceanScience #OceanSolutions #Arctic Institute of Marine Research (IMR), Norway Nina Jensen Leighton Rolley Stig Vågenes Lawrence Hislop Giuliana Panieri Alex Rogers Eva Ramirez-Llodra

📢 The final chapter of my PhD thesis is online! 📢 Our paper, “Holocene geoecohydrological floodplain dynamics in NE Belgium: regional drivers of local change,” is featured in the Special Issue on “Palaeo-perspectives on anthropogenic soil loss and landscape resilience,” jointly published by the Journal of Quaternary Science and Geoarchaeology. 🌊 Our research highlights how long-term changes in river floodplains are driven by variations in nearby forest cover, affecting water availability in river catchments. Over the past millennia, floodplains have shown an increasingly faster response to land cover changes in upland areas due to stronger connections between hillslopes and floodplains in more open, human-altered landscapes. These responses are complicated by local factors, such as soil type and topography, which influence both the attractiveness for settlement and cultivation, and the degree of landscape connectivity. The highly variable impact-response relationships, both in space and time, underscore the need for case-specific policy and management strategies to sustainably manage floodplain ecosystems. Most importantly, these strategies should consider that these dynamic ecosystems cannot be treated separately from their changing surrounding environments. 🌲

On behalf of the Micropaleoecology Working Group, we are pleased to introduce to everyone: The Micropaleoecology Framework In this contribution we draw attention to the incomparable record of ecosystem change that is represented by sedimentary records and the data contained within. In particular, we focus on the microfossil remains of organisms, be that skeletal (and derived geochemical and assemblage proxy) and molecular. We highlight the growing completeness of these records through datasets as well as the advancements in computational and laboratory-based analyses where as a field we are increasingly able to decipher the response of multiple trophic levels to important ecosystem changes. We outline the key micro- and molecular fossil groups available to our field and their contributions to proxies as assemblages and ecosystem tracers which are of aid to deciphering the multi-faceted response of ecosystems during environmental change. Overall, we define The Micropaleoecology Framework, documenting previous literature examples and advocating the use of mechanistic and/or systems level analysis often reserved for modern ecosystems which are uniquely achievable with the fossil records available to our science. https://lnkd.in/ebv4TgKT

🌊Welcome to read this paper 🦠Composition and Distribution of Plankton Communities in the Atlantic Sector of the Southern Ocean 🌐 by Kasyan et al Article Views 2719 Citations 15 #MarineBiology #OceanScience #PlanktonResearch #ClimateChange ✒️https://lnkd.in/dt-whTRY

Yale Scientific Magazine featured Dr Mario Lebrato’s research – a publication that challenges the 130-year-old assumption of seawater composition, of which he is the first author. Being interviewed by the oldest college magazine in the USA, Dr Lebrato shares insights on the study process, including what inspired the project. Read the article via the link below. #yale #yalescientific #yaleuniversity #yalescientificmag #yalescientificmagazine #oceanchemistry #seawaterchemistry #oceanscience #BCSSmz #BazarutoArchipelago #marinepark #Mozambique #BenguerraIsland #Benguerra #Bazaruto #marinescience #environmentalscience #fieldwork #fieldworkstation #divecentre #scientificdiving #protectouroceans #discoverocean #oceanconservation #marineconservation #marinelife #marinebiology

What lives on the seafloor of the Wadden Sea, and how sensitive are the species to disturbances caused by human influences? PhD candidate Kasper Meijer at the Groningen Institute for Evolutionary Life Sciences from the Faculty of Science and Engineering - University of Groningen created a large open-access database including species and life history traits to give more insight into the composition of sensitive seafloor communities. With over 1,000 accesses, his publication has received significant attention. Using the FAIR principles, he and his team made sure the dataset was easily usable by other users. To read more about his research visit the link below. 👇 https://lnkd.in/eHJ9FFDj #openscience #ecology #waddensea #biodiversity #rijksuniversiteitgroningen #universityofgroningen

Dr. Morgan Smith recently co-authored a paper with colleagues from the University of Oregon, University of Nevada, Reno, Oregon State University, Concord University, the Center for Applied Fire and Ecosystem Science, and Petrichor Research! The article, titled "Multi-proxy paleoenvironmental data from Paulina Marsh inform human-environmental dynamics in the Northern Great Basin U.S.A." was published in Quaternary Science Advances a few days ago. Check out the work here!   https://lnkd.in/ez3_HcQ3

I’m so pleased to announce that the first paper from my PhD research has been published in FEMS Microbiology Ecology! 📝 Arctic cyanobacterial mat community diversity decreases with latitude across the Canadian Arctic ❄🔬 Read it here (open access): https://lnkd.in/ee5RaZ8r Summary: Cyanobacterial mats are complex microbial communities commonly found in polar freshwater systems. Our study explored the diversity within these mats across a latitudinal gradient spanning the Canadian Arctic, from subarctic taiga to the High Arctic ice shelves. We discovered a reduction in microbial diversity with increasing latitude. These findings underscore the sensitivity of microbial communities to environmental changes and their significance in monitoring Arctic biodiversity. Huge thanks to my supervisors, co-authors, and colleagues for all the help and support these last few years! Federation of European Microbiological Societies University of Bath Natural History Museum NERC GW4 DTP #PolarScience #ArcticScience #PhDResearch #Cyanobacteria #Protists #DNAMetabarcoding

📃 NEW PAPER OUT! – last week 𝗮𝗻𝗼𝘁𝗵𝗲𝗿 research article from MMB PhD Katrin Haettig has been published in the journal of “Paleoceanography and Paleoclimatology”. Congratulations Katrin Haettig! 👏 Great job ✅ 𝗧𝗶𝘁𝗹𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗽𝗮𝗽𝗲𝗿: "Stable Middle Miocene Seawater Isotopes in the Eastern North Atlantic Ocean" 𝗪𝗵𝗮𝘁 𝘄𝗮𝘀 𝘁𝗵𝗲 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻? Reconstruction of seawater isotope changes based on hydrogen isotopes of alkenones. 𝗪𝗵𝘆 𝗱𝗶𝗱 𝘆𝗼𝘂 𝘀𝘁𝘂𝗱𝘆 𝗶𝘁? We applied this proxy to this sediment core because it is recording open-ocean Atlantic with published temperature and oxygen isotope records which we could/ did compare with hydrogen isotopes of alkenones (d2HC37). 𝗪𝗵𝗮𝘁 𝗮𝗿𝗲 𝘁𝗵𝗲 𝗺𝗼𝘀𝘁 𝗿𝗲𝗺𝗮𝗿𝗸𝗮𝗯𝗹𝗲/𝗶𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝘁 𝗳𝗶𝗻𝗱𝗶𝗻𝗴𝘀? Our results suggest a stable global surface seawater isotope evolution during the Middle Miocene, coupled with a long-term decrease in bottom water temperature.   𝗦𝗽𝗲𝗰𝗶𝗮𝗹 𝘁𝗵𝗮𝗻𝗸𝘀 𝘁𝗼 𝗠𝗠𝗕 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗮𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁𝘀: 🔬 Anchelique Mets for the extractions 🔬 Jort Ossebaar and Ronald van Bommel for the isotope analysis  💻 download full article below 👇   #marine #science #isotopes #biogeochemistry #research #mmb #nioz NIOZ Royal Netherlands Institute for Sea Research