Article
Environmental Sciences
Howard S. J. Roe, David Freestone, Fae Sapsford
Summary: The Sargasso Sea is a high seas ecosystem in the North Atlantic Subtropical Gyre, supporting a diverse ocean ecosystem with floating macroalgae. It was designated as an Ecologically or Biologically Significant Marine Area (EBSA) a decade ago and this paper reviews the supporting scientific evidence and assesses any changes since then. It also evaluates the role of being an EBSA in conservation efforts.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biochemical Research Methods
Michal Karlicki, Stanislaw Antonowicz, Anna Karnkowska
Summary: Tiara is a deep-learning-based approach for identifying eukaryotic sequences in metagenomic datasets, able to classify nuclear and organellar eukaryotic fractions and further divide organellar sequences into plastidial and mitochondrial. Compared to the similar tool EukRep, Tiara performs better in eukaryote classification with lower calculation time.
Article
Environmental Sciences
Alexander Barth, Joshua Stone
Summary: In recent years, the capabilities of optical tools and in situ imaging devices have greatly expanded and are revolutionizing the field of plankton research. However, there is still limited research comparing these tools with traditional net-based methods, especially in open-ocean systems.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Marine
Svetlana Vazyulya, Oleg Kopelevich, Inna Sahling, Ekaterina Kochetkova, Evgenia Lange, Alexander Khrapko, Tatyana Eremina, Dmitry Glukhovets
Summary: Summer blooms of harmful cyanobacteria are common in the Baltic Sea. A new regional algorithm has been proposed to estimate cyanobacteria biomass using satellite data. The algorithm shows better performance in determining both bloom area and intensity compared to other algorithms. Spatial and temporal variability of cyanobacterial blooms in the region from 2003 to 2022 was also analyzed.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Jan Pyrih, Tomas Panek, Ignacio Miguel Durante, Vendula Raskova, Kristyna Cimrhanzlova, Eva Kriegova, Anastasios D. Tsaousis, Marek Elias, Julius Lukes
Summary: This study reveals the presence of homologs of bacterial Ffh and FtsY proteins in various plastid-lacking unicellular eukaryotes, suggesting they constitute parts of an ancestral mitochondrial signal peptide-based protein-targeting system inherited from the last eukaryotic common ancestor. This system appears to have been lost from the majority of extant eukaryotes, with implications for protein targeting in different organisms.
MOLECULAR BIOLOGY AND EVOLUTION
(2021)
Article
Microbiology
Bellineth Valencia, Michael R. Stukel, Andrew E. Allen, John P. McCrow, Ariel Rabines, Brian Palenik, Michael R. Landry
Summary: The study utilized various sequencing methods to quantify microbial abundances in water-column samples and sediment-trap-collected particles in the California Current Ecosystem. Results showed that most dominant eukaryotes and prokaryotes were underrepresented on sinking particles, while diatoms were consistently overrepresented. This highlights the importance of sequence-based quantitative approaches for assessing taxon contributions of phytoplankton to carbon export.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Biodiversity Conservation
George N. Hotos
Summary: During a survey in 2015, a diverse assemblage of organisms was found in a hypersaline pond of the Messolonghi saltworks, including Cyanobacteria, Chlorophytes, Diatoms, Protozoa, and more. Some of the protozoa have the potential to be live food candidates for marine fish larvae.
Article
Plant Sciences
Samantha P. Setta, Sarah Lerch, Bethany D. Jenkins, Sonya T. Dyhrman, Tatiana A. Rynearson
Summary: Diatoms are important components of the marine food web, but little is known about their diversity and community composition in oligotrophic offshore regions. This study compared the diatom diversity and community composition between oligotrophic and eutrophic waters along a transect in the western North Atlantic. The results showed that oligotrophic waters harbor a diverse diatom community that is distinct from coastal regions, and their composition is influenced by temperature and phosphate levels.
JOURNAL OF PHYCOLOGY
(2023)
Article
Environmental Sciences
Janika Reineccius, Joanna J. Waniek
Summary: Microplastics, the most widespread anthropogenic pollutant in aquatic and terrestrial environments, have large knowledge gaps regarding their origin, fate, and temporal variations in the oceans. This study analyzed sediment trap material from the deep subtropical Northeast Atlantic to assess the role of the deep ocean as a potential sink for microplastics. The study revealed that microplastic particles were present in all analyzed samples, with varying flux rates and mass fluxes among different polymers. The composition of polymers also changed significantly between years, and the correlation between some polymers and lithogenic input suggested an air transport pathway from northeast Africa and surrounding regions.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geosciences, Multidisciplinary
Hongliang Li, Jingjing Zhang, Jiliang Xuan, Zezhou Wu, Lihua Ran, Martin G. Wiesner, Jianfang Chen
Summary: This passage mainly describes the inefficiency of the biological carbon pump in the South China Sea during the El Nino event, and introduces the recovery efficiency and asymmetric response to ENOS.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Annaliese C. S. Meyer, Damian Grundle, Jay T. Cullen
Summary: Unicellular methanotrophs utilize light rare earth elements during methane oxidation, suggesting a possible terrestrial origin for aerobic methanotrophy. Despite low concentrations in the ocean, the xoxF gene is still present in marine methanotrophs. Depletion of light rare earth elements in the upper Sargasso Sea water column was collocated with microbial growth on methanol and xoxF5 gene detection.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Environmental Sciences
P. Munk, B. Buongiorno Nardelli, P. Mariani, J. Bendtsen
Summary: The larvae of European eels travel a distance of approximately 5,000 km from the Sargasso Sea to the European coasts. This study focuses on the larval drift and analyzes the effects of mesoscale processes using survey data and modeling. The distribution of larvae in the Subtropical Convergence Zone was examined, and patterns in water mass distribution and particle dispersion dynamics were analyzed. The results suggest that the larval distribution is influenced by frontal zones and current shear, challenging common interpretations of eel larval drift.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Limnology
Kuanbo Zhou, Claudia R. Benitez-Nelson, Jie Huang, Peng Xiu, Zhenyu Sun, Minhan Dai
Summary: Mesoscale eddies in the North Pacific Subtropical Gyre were found to enhance nutrient injection into the photic zone, affecting the magnitude and composition of particle export to depth. Biogenic silica fluxes were significantly higher at both the cores and edges of cyclonic eddies, with peak values occurring during the mature stage. During the bloom season, all elemental fluxes were reduced in cyclonic eddies compared to non-eddy references.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Robert Kawecki, Slawomir Hausman, Piotr Korbel
Summary: This study investigates the possibility of using simulated RSSI maps with fingerprinting-based indoor localization systems. By analyzing representative indoor scenarios, the performance of RSSI distribution maps obtained from simulations versus measurement campaigns is evaluated. The study compares the performance of the positioning system using RSSI maps prepared from measurements and using two popular indoor propagation methods. The findings have important implications for the development of indoor localization systems and may reduce deployment times by replacing reference measurements with computer simulations.
Article
Environmental Sciences
Arnab Das, Renji Remesan, Adrian L. Collins, Ashok Kumar Gupta
Summary: The global demand for sediment source fingerprinting continues to increase in order to support improved management of sediment problems. In our study, a Bayesian fingerprinting approach using MixSIAR with geochemical signatures was used, both with and without informative priors based on particle size and slope. The results showed that agricultural and barren lands were the main sediment sources, with forests being less significant. Comparing the results with a newly proposed Source Sensitivity Index (SSI) and the INVEST-SDR model, the SSI maps using informative priors showed more than 78% agreement with the INVEST-SDR model in sub-catchment prioritization for sediment sources. This study demonstrates the benefits of combining geochemical sediment source fingerprinting with SSI indices in larger catchments where spatial prioritization of soil and water conservation is challenging but necessary.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Oceanography
Steven E. Baer, Sara Rauschenberg, Catherine A. Garcia, Nathan S. Garcia, Adam C. Martiny, Benjamin S. Twining, Michael W. Lomas
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2019)
Article
Ecology
Benjamin J. Nettersheim, Jochen J. Brocks, Arne Schwelm, Janet M. Hope, Fabrice Not, Michael Lomas, Christiane Schmidt, Ralf Schiebel, Eva C. M. Nowack, Patrick De Deckker, Jan Pawlowski, Samuel S. Bowser, Ilya Bobrovskiy, Karin Zonneveld, Michal Kucera, Marleen Stuhr, Christian Hallmann
NATURE ECOLOGY & EVOLUTION
(2019)
Article
Oceanography
Benjamin S. Twining, Sara Rauschenberg, Steven E. Baer, Michael W. Lomas, Adam C. Martiny, Olga Antipova
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2019)
Article
Limnology
Adam C. Martiny, Lucas Ustick, Catherine A. Garcia, Michael W. Lomas
LIMNOLOGY AND OCEANOGRAPHY
(2020)
Article
Limnology
Alyse A. Larkin, Catherine A. Garcia, Kimberly A. Ingoglia, Nathan S. Garcia, Steven E. Baer, Benjamin S. Twining, Michael W. Lomas, Adam C. Martiny
LIMNOLOGY AND OCEANOGRAPHY
(2020)
Article
Multidisciplinary Sciences
Adam C. Martiny, Michael W. Lomas, Weiwei Fu, Philip W. Boyd, Yuh-ling L. Chen, Gregory A. Cutter, Michael J. Ellwood, Ken Furuya, Fuminori Hashihama, Jota Kanda, David M. Karl, Taketoshi Kodama, Qian P. Li, Jian Ma, Thierry Moutin, E. Malcolm S. Woodward, J. Keith Moore
Article
Oceanography
Bridget E. Cotti-Rausch, Michael W. Lomas, Eric M. Lachenmyer, Emily G. Baumann, Tammi L. Richardson
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2020)
Editorial Material
Ecology
Christian Hallmann, Benjamin J. Nettersheim, Jochen J. Brocks, Arne Schwelm, Janet M. Hope, Fabrice Not, Michael Lomas, Christiane Schmidt, Ralf Schiebel, Eva C. M. Nowack, Patrick De Deckker, Jan Pawlowski, Samuel S. Bowser, Ilya Bobrovskiy, Karin Zonneveld, Michal Kucera, Marleen Stuhr
NATURE ECOLOGY & EVOLUTION
(2020)
Article
Geosciences, Multidisciplinary
Jeffrey W. Krause, Michael W. Lomas
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Multidisciplinary Sciences
Domenico D'Alelio, Salvatore Rampone, Luigi Maria Cusano, Valerio Morfino, Luca Russo, Nadia Sanseverino, James E. Cloern, Michael W. Lomas
SCIENTIFIC REPORTS
(2020)
Article
Biology
Catherine A. Garcia, George Hagstrom, Alyse A. Larkin, Lucas J. Ustick, Simon A. Levin, Michael W. Lomas, Adam C. Martiny
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2020)
Article
Oceanography
Veli Caglar Yumruktepe, Baris Salihoglu, Susanne Neuer
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Limnology
Bianca N. Cruz, Samantha Brozak, Susanne Neuer
Summary: This study investigated the source, composition, and microbial communities of sinking particles in the ocean, finding that phytodetrital aggregates were the primary driver of organic carbon flux in the fall, while fecal aggregates replaced them as the dominant component in the spring. The relative composition of microbial communities in different particle categories did not show significant differences between seasons, and prokaryotic taxa associated with zooplankton gut microbiomes were indicators of sinking particles.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Limnology
Kassandra L. Dudek, Bianca N. Cruz, Beth Polidoro, Susanne Neuer
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2020)
Article
Environmental Sciences
Michael W. Lomas, Steven E. Baer, Sydney Acton, Jeffrey W. Krause
FRONTIERS IN MARINE SCIENCE
(2019)
Article
Oceanography
Jason A. Law, Robert H. Weisberg, Yonggang Liu, Dennis A. Mayer, Jeffrey C. Donovan
Summary: Time series data from a moored array of sensors are used to describe the long-term mean circulation and seasonal variations on the West Florida Continental Shelf. The observations reveal a coherent shelf-wide circulation pattern with alongshore and down-coast flow, and a coastal jet separating an upwelling region from a downwelling region influenced by the deeper ocean.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2024)