Article
Engineering, Marine
Simona Retelletti Brogi, Raffaella Casotti, Benjamin Misson, Cecilia Balestra, Margherita Gonnelli, Stefano Vestri, Chiara Santinelli
Summary: This study investigated biological DOM removal in a small estuary and found that despite differences in initial conditions, the rates of DOC removal were surprisingly similar in two contrasting seasons. The concentration and quality of DOM in the estuary showed marked differences between spring and autumn, with different trends in fluorescent DOM components observed during incubation.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Marine
Konstantin Matveev
Summary: This study demonstrates the implementation of an air-cavity system on a shallow-draft hull using computational fluid dynamics modeling. The hull of a displacement barge-type air-cavity boat is numerically modified to operate at higher speeds, and computational simulations are conducted at various speeds and center of gravity positions.
Article
Limnology
Tabea Hildebrand, Helena Osterholz, Carina Bunse, Hendrik Grotheer, Thorsten Dittmar, Peter J. Schupp
Summary: This study investigated the impact of two tropical coral reef sponges on marine dissolved organic matter (DOM). The results showed that the sponges were able to uptake DOM, release dissolved inorganic nitrogen, and significantly alter the molecular composition of DOM. The findings highlight the importance of sponge-mediated DOM transformation in marine ecosystems.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Diego Frau, Alfonso Pineda, Gisela Mayora, Melina Devercelli
Summary: This study explores the mechanisms behind phytoplankton diversity patterns in natural ecosystems and finds that both environmental and temporal factors play important roles in shaping these patterns. Temporal variation is the main contributor to diversity in connected lakes, while alpha diversity is more important in isolated lakes. Alpha diversity is the most important for functional groups in both lakes. Environmental factors are more relevant in connected lakes, while temporal processes are critical for diversity patterns in both lakes.
Article
Environmental Sciences
Thomas Trombetta, Francois-Yves Bouget, Christine Felix, Behzad Mostajir, Francesca Vidussi
Summary: Temperature and light are the main drivers of seasonal dynamics in microbial planktonic diversity in coastal ecosystems, but separating their effects is challenging. This study conducted weekly sampling in a coastal lagoon in the south of France to investigate the effects of temperature on microbial community diversity and succession. Results showed that water temperature was the main driver of community diversity and succession from winter to spring.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Mathematics
Ben Mansour Dia, Mouhamadou Samsidy Goudiaby, Oliver Dorn
Summary: This paper addresses a water flow regularization problem for the two-dimensional viscous shallow water equations using local boundary conditions and a stabilizing boundary feedback control law. By iterating the approach, a stabilizing feedback control law for infinite time is built, providing an exponential decay of energy thanks to a positive arbitrary time-dependent stabilization function.
Article
Geochemistry & Geophysics
P. K. Sarath, K. R. Mangalaa, D. Cardinal, G. P. Gurumurthy, A. Dapoigny, V. V. S. S. Sarma, J. Riotte
Summary: This study presents the first investigation of silicon isotopic composition in river water from two contrasting basins in South India, showing the influence of seasonal changes and human activities on the isotopic signature.
Article
Ecology
Md. Shawkat I. Sohel, John L. Herbohn, Ying Zhao, Jeffrey J. Mcdonnell
Summary: The short-term dynamics of water use strategies for two co-occurring tree species in a tropical rainforest were investigated using continuous sap flux measurements and hourly sampling of xylem water stable isotope composition. Differences in sap flux and water source patterns were observed between the two species. The findings suggest that these differences are related to plant water storage capacity and wood anatomical features.
Article
Agronomy
Stephanie Gerin, Henriikka Vekuri, Maarit Liimatainen, Juha-Pekka Tuovinen, Jarkko Kekkonen, Liisa Kulmala, Tuomas Laurila, Maiju Linkosalmi, Jari Liski, Erkki Joki-Tokola, Annalea Lohila
Summary: This study provides continuous measurements of CO2 and N2O fluxes in a drained agricultural peatland, revealing the emissions of these greenhouse gases and their variability. The results show the significant influence of meteorological and management events on N2O emissions. This research is important for reducing the uncertainty of annual N2O budget estimations and assessing greenhouse gas emissions.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Engineering, Electrical & Electronic
Ding Nie, Min Zhang, Pengbo Wei, Mingyuan Man
Summary: This article focuses on improving the understanding of electromagnetic scattering from water waves modulated by shoaling effects from different upslope submarine topography in the nearshore zone. Simulation results showed that the angular position and higher-order harmonics of the bistatic scattering coefficient are impacted by the upslope variations, as well as the wave height and nonlinear effects of the shallow water waves. Additionally, simulations support the transfer of wave energy from low to high-frequency components in the shallow water zone with upslope submarine topography.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2021)
Review
Energy & Fuels
Shenghua Wang, Chenhao Wang, Wangbo Pan, Wei Sun, Deren Yang
Summary: Two-dimensional silicon (2D Si) possesses the general advantages of 2D materials, while also exhibiting unique surface chemistry and metal-support interactions, making it a competitive candidate in the field of catalysis.
Article
Chemistry, Inorganic & Nuclear
Ya Yin, Zhao Chen, Run-Hao Li, Fan Yi, Xiao-Cui Liang, Shi-Qi Cheng, Kai Wang, Yue Sun, Yi Liu
Summary: This study reported the synthesis of three supramolecular platinum(II) metallacycles through coordination-driven self-assembly, demonstrating properties of aggregation-induced emission enhancement (AIEE) and reversible mechanofluorochromism, which could be potentially applied in cell imaging and solid-state lighting.
INORGANIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Laila Toum, Lucia Sandra Perez-Borroto, Andrea Natalia Pena-Malavera, Catalina Luque, Bjorn Welin, Ariel Berenstein, Dario Fernandez Do Porto, Adrian Vojnov, Atilio Pedro Castagnaro, Esteban Mariano Pardo
Summary: Identifying high-yield genotypes under low water availability is crucial for soybean climate-smart breeding. This study conducted phenotyping experiments and transcriptomic analysis to identify potential breeding markers associated with stress tolerance and yield stabilization in soybeans.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Jose A. Medina-Vega, S. Joseph Wright, Frans Bongers, Stefan A. Schnitzer, Frank J. Sterck
Summary: Research has shown that lianas in tropical forests have an advantage in maintaining water balance during seasonal drought compared to trees, and they maximize leaf cover to cope with high light conditions in the dry season. This has significant implications for tree and forest dynamics.
Article
Forestry
Xiuhua Zhao, Ping Zhao, Liuwei Zhu, Qian Wang, Yanting Hu, Benjamin M. Cranston, Julia Kaplick, Ouyang Lei, Xia Chen, Guangyan Ni, Qing Ye, Cate Macinnis-Ng
Summary: Understanding species-specific water use patterns and the sensitivity of tree transpiration to environmental drivers is crucial for evaluating forest dynamics and land use changes under global change. Results showed that the strongest environmental drivers of sap flow were photosynthetically active radiation (PAR), vapor pressure deficit (VPD) and temperature across sites, indicating the complexity of quantifying land water budgets for areas covered by different species.
Article
Limnology
Manuel Maldonado, Lindsay Beazley, Maria Lopez-Acosta, Ellen Kenchington, Benoit Casault, Ulrike Hanz, Furu Mienis
Summary: The biogeochemical cycling of silicon is crucial for the ecological functioning of the ocean, with Vazella pourtalesii sponges in the aphotic zone of the central Scotian Shelf in Canada playing a significant role in silicon utilization and cycling. Despite individual low rates of silicic acid consumption, the massive sponge population leads to substantial annual consumption and accumulation of biogenic silica, with a portion being recycled as silicic acid before permanent burial. This silica-silicic acid turnover enriches the bottom water of the central Scotian Shelf, sustaining a feedback mechanism that supports the long-term persistence of the sponge aggregations.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Marine & Freshwater Biology
Francesca Strano, Valerio Micaroni, Simon K. Davy, Manuel Maldonado, James J. Bell
Summary: This study characterized the reproduction mode and early life stages of the sponge Crella incrustans in temperate Pacific waters, revealing it to be a simultaneous hermaphrodite with internal fertilization, asynchronous development, and brooded embryos. Under laboratory conditions, 94.3% of larvae settled within 2 days and metamorphosed into functional settlers within a week.
INVERTEBRATE BIOLOGY
(2021)
Article
Environmental Sciences
Manuel Maldonado, Maria Lopez-Acosta, Kathrin Busch, Beate M. Slaby, Kristina Bayer, Lindsay Beazley, Ute Hentschel, Ellen Kenchington, Hans Tore Rapp
Summary: Research on different species of hexactinellid sponges shows significant variations in microbial nutrient fluxes, with V. pourtalesii microbiota utilizing various pathways to produce ammonium that fosters sponge growth but also leads to consumption of large amounts of ammonium from seawater, impacting the surrounding ecosystem.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Limnology
Julien Thebault, Aurelie Jolivet, Matthieu Waeles, Helene Tabouret, Sophie Sabarot, Christophe Pecheyran, Aude Leynaert, Klaus Peter Jochum, Bernd R. Schone, Lukas Frohlich, Valentin Siebert, Erwan Amice, Laurent Chauvaud
Summary: Human activities are increasingly impacting phytoplankton dynamics in coastal ecosystems globally, but there are major disparities among sites and through time. Studying chemical information archived in shells of Pecten maximus can provide insights into phytoplankton dynamics over larger scales.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Review
Biology
Tyler J. Carrier, Manuel Maldonado, Lara Schmittmann, Lucia Pita, Thomas C. G. Bosch, Ute Hentschel
Summary: This article integrates embryology and microbiology to review the transmission of symbiotic microorganisms in marine sponges. The study finds that vertical transmission is common but not universal, and that transmission occurs during specific developmental stages. Additionally, the microbial abundance in sponges influences the properties of the developmental microbiome.
Article
Green & Sustainable Science & Technology
Emma Michaud, Adelaide Aschenbroich, Olivier Gauthier, Francois Fromard, Josephine Y. Aller, Robert C. Aller, Guillaume Brunier, Edward J. Anthony, Antoine Gardel, Vincent Le Garrec, Aude Leynaert, Gerard Thouzeau
Summary: This study characterizes the impact of early mangrove development on benthic infaunal assemblages and suggests that spatial variables play a role in shaping benthic diversity patterns. Understanding mangrove dynamics at suitable spatial scales is crucial for mangrove management and restoration plans.
Article
Fisheries
Amanda Schadeberg, Eleanor Ford, Alina M. Wieczorek, Louise C. Gammage, Maria Lopez-Acosta, Ivana Buselic, Timotej Turk Dermastia, Marcos Fontela, Cristina Galobart, Natalia Llopis Monferrer, Marek Lubosny, Stefania Piarulli, Giuseppe Suaria
Summary: The COVID-19 pandemic has negatively impacted marine early-career researchers (ECRs), exacerbating existing challenges and hindering their success and well-being. The disruption caused by the pandemic has affected networking opportunities, practical experience, and publication production for marine ECRs.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Limnology
Maria Lopez-Acosta, Manuel Maldonado, Jacques Grall, Axel Ehrhold, Celia Sitja, Cristina Galobart, Fiz F. Perez, Aude Leynaert
Summary: In coastal systems, the contribution of diatoms to the silicon cycle is well-known, while the contribution of benthic silicifiers such as sponges has rarely been studied. This study quantified the silicon fluxes and stocks of sponge fauna in the Bay of Brest, France. The findings indicate that sponge silicon stocks are much larger than diatom stocks and have a slower turnover rate. However, it is unclear whether the silicon budget of the Bay is at steady state.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Multidisciplinary Sciences
Maria Lopez-Acosta, Clemence Potel, Morgane Gallinari, Fiz F. Perez, Aude Leynaert
Summary: Recent studies have indicated that sponges are also important in the marine silica cycle. They accumulate large stocks of biogenic silica and undergo intra-annual changes in their silicon stocks. A year-long study was conducted on the effect of nudibranch predation on sponge population and it was found that after 5 months of predation, sponge biomass decreased by 95% due to nudibranch predation. However, sponges were able to partially recover within 7 months through rapid growth and assimilation of dissolved silicon.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Manuel Maldonado, Maria Lopez-Acosta, Samuel Abalde, Isabel Martos, Hermann Ehrlich, Aude Leynaert
Summary: The dissolution of biogenic silica is crucial for silicon regeneration in the ocean, with different sponge skeletons exhibiting varying dissolution rates. However, the overall impact of these differences on the concept of sponge as important silicon sinks remains unclear.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Ecology
Paul J. Treguer, Jill N. Sutton, Mark Brzezinski, Matthew A. Charette, Timothy Devries, Stephanie Dutkiewicz, Claudia Ehlert, Jon Hawkings, Aude Leynaert, Su Mei Liu, Natalia Llopis Monferrer, Maria Lopez-Acosta, Manuel Maldonado, Shaily Rahman, Lihua Ran, Olivier Rouxel
Summary: The element silicon is crucial for the growth of silicified organisms in marine ecosystems, connecting biogeochemical cycles of various elements. Recent studies have shown that the total silicon inputs and outputs in the ocean are significantly higher than previously estimated, leading to important modifications and updates in understanding the global silicon cycle.