Article
Plant Sciences
Angela G. Bartolo, Gabrielle Zammit, Eleni Kytinou, Frithjof Christian Kupper
Summary: The study identified and described a new species, Laurencia mediterranea, within the Laurencia complex using an integrative systematics approach. The new species showed distinct morphological characteristics and a separate genetic cluster, highlighting the importance of genetic sequences in macroalgal biodiversity research. This approach could be particularly useful in cases where biogeography is relevant and limited sequence data are available in online DNA libraries.
Article
Engineering, Environmental
Daniele de A. Miranda, Juliana Leonel, Jonathan P. Benskin, Jana Johansson, Vanessa Hatje
Summary: The study found that the distribution of PFAS in the Western Tropical Atlantic Ocean varied with depth and longitude sectors. PFAS mainly existed in the form of perfluoroalkyl carboxylic acids, and the origin of different water masses was also an important factor affecting PFAS concentrations and profiles.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Camille Leal, Dhara Avelino-Alves, Vinicius Salazar, Claudia Omachi, Cristiane Thompson, Roberto G. S. Berlinck, Eduardo Hajdu, Fabiano Thompson
Summary: This study reveals that both Low Microbial Abundance and High Microbial Abundance sponge species have stable prokaryotic communities across vast geographic regions, indicating their high adaptability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Luanda Pereira Soares, Pilar Diaz-Tapia, Alain Duran, Mutue Toyota Fujii, Ligia Collado-Vides
Summary: The addition of molecular data to taxonomic studies has led to the discovery of a new turf-forming species, which was previously considered widely distributed but is actually a complex of several distinct species. This highlights the importance of integrating molecular and morpho-anatomical studies to reveal new taxa.
Article
Environmental Sciences
Thiago Monteiro, Matheus Batista, Sian Henley, Eunice da Costa Machado, Moacyr Araujo, Rodrigo Kerr
Summary: The western Tropical Atlantic Ocean is a complex region for carbon cycle dynamics, with three distinct sub-regions showing different sea-air CO2 exchanges. The Amazon River plume waters play a crucial role in carbon uptake in this region. The carbon dynamics in the North Brazil Current and North Equatorial Current waters are sensitive to global climate change.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Multidisciplinary Sciences
Jay R. Rooker, Michelle Zapp Sluis, Larissa L. Kitchens, Michael A. Dance, Brett Falterman, Jessica M. Lee, Hui Liu, Nathaniel Miller, Hilario Murua, Alexandra M. Rooker, Eric Saillant, John Walter, R. J. David Wells
Summary: This study used natural geochemical markers to investigate the origin of yellowfin tuna in the western Atlantic Ocean. By analyzing otoliths, the study established specific nursery signatures for different production zones and found that fisheries in the western Atlantic Ocean were subsidized by outside spawning/nursery areas. The study also highlighted the complex and dynamic nature of the species' stock structure and population connectivity.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Katia Cristina Aparecido, Thierry Fredou, Leandro Nole Eduardo, Michael Maia Mincarone, Rayssa Siqueira Lima, Maria Fernanda da Silva Morais, Bastien Merigot
Summary: Mesopelagic fishes have a high functional diversity and can be grouped into 10 major functional groups. Functional diversity is higher in the deepest layers and varies between day and night.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Chen Ma, Tim Li
Summary: The study investigated the impact of different synoptic scale perturbations on tropical cyclone size in the western North Pacific and North Atlantic. Numerical model experiments showed that synoptic wave train (SWT) and easterly wave (EW) lead to the development of larger and smaller tropical cyclones, respectively, due to differences in surface wind speed and moisture generation. This in turn affects convective development and radial pressure gradients, influencing the size of the tropical cyclone.
Article
Meteorology & Atmospheric Sciences
Daniel J. Befort, Kevin Hodges, Antje Weisheimer
Summary: This study analyzed seasonal forecasting models from five European modeling centers to study tropical cyclones over the western North Pacific and North Atlantic basins. The models were able to capture the observed seasonal cycle of cyclone frequencies, but there were large differences in numbers and spatial track densities. While predictions for the western North Pacific basin were often unreliable, most models provided reliable predictions for the North Atlantic basin and were skillful in predicting interannual cyclone variability in a region covering the Caribbean and North American coastline.
JOURNAL OF CLIMATE
(2022)
Article
Geography, Physical
Bernardo S. Chede, Igor M. Venancio, Thiago S. Figueiredo, Ana Luiza S. Albuquerque, Emmanoel Vieira Silva-Filho
Summary: The study reveals changes in mercury deposition and accumulation in the marine realm over the last 70 ka, with significant influence of climate change and deep ocean circulation on the geochemical cycle of mercury in marine sediments.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
M. S. Reboita, N. M. Crespo, L. M. M. Dutra, B. A. Silva, B. C. Capucin, R. P. da Rocha
Summary: This study provides a description of the synoptic features and meteorological mechanisms contributing to the genesis of the first pure tropical cyclone in the tropical western South Atlantic Ocean in March 2019, named Iba. The study also highlights the anomalous synoptic patterns linked to this unprecedented tropical cyclogenesis and presents a general overview of Iba's lifecycle.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Geography, Physical
Bernardo S. Chede, Igor M. Venancio, Thiago S. Figueiredo, Ana Luiza S. Albuquerque, Emmanoel Vieira Silva-Filho
Summary: This study investigates the deposition and accumulation changes of mercury in marine sediments in the western tropical South Atlantic over the last 70 ka. The results show higher concentrations of mercury during the glacial period due to increased atmospheric dust. The increased residence time of North Atlantic Deep Water reduces mercury concentration, and the terrigenous input from the Sao Francisco River further dilutes mercury during Heinrich stadials. The study highlights the strong influence of deep ocean circulation on the long-term deposition and accumulation of mercury in marine sediments.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Craig A. Ramseyer, Paul W. Miller
Summary: This study fills the gap in understanding the climatology and evolution of trade wind inversion (TWI) in the tropical North Atlantic (TNA) region using high-resolution ERA5 reanalysis data. The results show stronger and more frequent TWIs in the central TNA across all seasons. Analysis also reveals increasing trends in TWI frequency and strength, with a particularly strong signal from December to July. Regional forcing mechanisms responsible for these changes are discussed.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Yuhei Takaya, Naoaki Saito, Ichiro Ishikawa, Shuhei Maeda
Summary: This study investigates the influence of high sea surface temperatures in the northern tropical Atlantic on the summer climate of the Indo-western Pacific in 2010. The results suggest that these high temperatures had a considerable impact on weather patterns in the region via tropical routes and contributed to anomalous conditions.
JOURNAL OF CLIMATE
(2021)
Article
Multidisciplinary Sciences
Everton Giachini Tosetto, Arnaud Bertrand, Sigrid Neumann-Leitao, Miodeli Nogueira Junior
Summary: The study found that in the Western Tropical Atlantic, the Amazon River plume acts as an important biogeographical barrier, influencing the differences in animal communities between the Caribbean Sea and the Tropical Brazil continental shelf. Results showed more species sharing in the northwest direction, while the Amazon River region is a strong barrier for taxa with reduced dispersal capacity.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Maria Irisvalda Leal Gondim Cavalcanti, Patricia Maria Gonzalez Sanchez, Mutue Toyota Fujii
Summary: This study compared the diversity, coverage, and biomass of beached seaweeds on the north-eastern and south-eastern coasts of Brazil. The results showed that while the north-eastern coast had higher species richness, the south-eastern coast exhibited higher coverage and biomass. The frequency and distribution of beached seaweeds varied significantly across beaches in Brazil, providing insights into their biodiversity and biomass and their potential economic use in the future.
EUROPEAN JOURNAL OF PHYCOLOGY
(2022)
Article
Marine & Freshwater Biology
Fabio Nauer, Mariana Cabral Oliveira, Estela Maria Plastino, Nair Sumie Yokoya, Mutue Toyota Fujii
Summary: The effects of temperature on physiological processes in Hypnea pseudomusciformis were studied. Different ecotypes displayed decreased physiological performance at 32 degrees C. The wide thermal optimum of this species may explain its widespread distribution along the Brazilian coast.
PHYCOLOGICAL RESEARCH
(2022)
Article
Plant Sciences
Martha Vilchis, Kurt M. Dreckmann, Oscar E. Hernandez, Carlos A. Palma Ortiz, Maria Luisa Nunez Resendiz, Abel Senties
Summary: This study genetically identified 10 species of Gracilariaceae in the Yucatan Peninsula and discovered 2 new records for the Mexican Atlantic. The molecular assessment proved to be a useful tool for evaluating the diversity of Gracilariaceae species.
BOTANICAL SCIENCES
(2022)
Article
Plant Sciences
Martha Isabel Vilchis, Kurt M. Dreckmann, Abel Senties
Summary: This study used morphometric analysis to determine the existence of characters that distinguish five species of the Gracilaria mammillaris complex in the Mexican Atlantic. The results showed that only Gracilaria curtissiae differs significantly from the other species in the complex. The study suggests that an ongoing speciation process may be responsible for the lack of distinguishable morphological traits in most of the studied species.
ACTA BOTANICA MEXICANA
(2022)
Article
Plant Sciences
Nuno Tavares Martins, Valeria Cassano, Carlos Frederico Deluqui Gurgel
Summary: A genetic study was conducted on the C. sinuosa populations in Brazil, revealing two genetically distinct population groups (north vs. south). The southern populations had lower genetic diversity, suggesting past bottlenecks followed by recent colonization from northern populations.
JOURNAL OF PHYCOLOGY
(2022)
Article
Plant Sciences
Luanda Pereira Soares, Pilar Diaz-Tapia, Alain Duran, Mutue Toyota Fujii, Ligia Collado-Vides
Summary: The addition of molecular data to taxonomic studies has led to the discovery of a new turf-forming species, which was previously considered widely distributed but is actually a complex of several distinct species. This highlights the importance of integrating molecular and morpho-anatomical studies to reveal new taxa.
Article
Plant Sciences
Sebastiana Lidielda Albuquerque da Silva, Jhullyrson Osman Ferreira Brito, Sonia Barreto Pereira, Watson Arantes Gama, Wilson Jose da Silva Junior, Ana Maria Benko-Iseppon, Valeria Cassano
Summary: This study investigated the genus Gayralia using ITS sequencing of field collections in tropical northeastern Brazil. The results showed low intraspecific divergence of G. brasiliensis and expanded its distribution to the northeastern Brazilian coast and India.
Review
Biochemistry & Molecular Biology
Nuno T. Martins, Leonardo B. Macagnan, Valeria Cassano, Carlos Frederico D. Gurgel
Summary: In the last 30 years, numerous phylogeography studies have been conducted on Brazilian marine species, identifying various physical and ecological processes as drivers of population genetic differentiation along the Brazilian coast.
Article
Plant Sciences
Cibele Conceicao dos Santos, Jose Marcos de Castro Nunes, Gabriel do Nascimento Santos, Edilene Maria dos Santos Pestana, Valeria Cassano, Goia de Mattos Lyra
Summary: This study conducted molecular, genetic, and morphological analyses of Lomentariaceae, resulting in the discovery of a new species, Ceratodictyon sanctae-crucis sp. nov., and the proposal of a new genus, Yendoa gen. nov., within Lomentariaceae. The study also revealed that Lomentariaceae now consists only of monophyletic genera, providing a more coherent taxonomic framework for the family.
Article
Plant Sciences
Mayara C. B. S. Rocha, Sonia M. B. Pereira, Maria F. Oliveira-Carvalho, Ana M. Benko-Iseppon, Caroline F. Ximenes, Mutue T. Fujii, Valeria Cassano
Summary: This study evaluated the diversity of Udotea in northeastern Brazil using morphological-based taxonomy and plastid molecular markers. A new species, Udotea dotyi, was discovered in the western south Atlantic Ocean. Further studies are needed to define a taxon named as 'Udotea cyathiformis'.
Book Review
Plant Sciences
Mutue Toyota Fujii
BRAZILIAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Sinuhe Hernandez-Marquez, Maria Eugenia Zamudio-Resendiz, Maria Luisa Nunez-Resendiz, Alexis Escarcega-Bata, Abel Senties
Summary: The diatom Minutocellus polymorphus is a widely studied species that is an ideal model for toxicity tests due to its rapid growth. Although its gross morphology has been extensively described, the ultrastructural characters associated with its importance are unknown. Through a collection made in Acapulco Bay, Guerrero, Mexico, cells morphologically identical to M. polymorphus were isolated, and a first description of the genus' ultrastructure was provided through cultures and observations in a transmission electron microscope. Further detailed studies are needed to increase knowledge about the ultrastructure of diatoms on the Mexican Pacific coasts where they are previously unknown.
Article
Plant Sciences
Maria Luisa Nunez Resendiz, Abel Senties, Kurt M. Dreckmann, Oscar E. Hernandez, Martha Isabel Vilchis
Summary: This study identified genetically differentiated groups within Gelidiella acerosa using genetic sequence data, and classified the Atlantic group as an independent species of the cryptic complex. Gelidiella papillosa sp. nov. is supported only by its genetic independence and allopatric distribution.
Article
Plant Sciences
Victor Andrei Rodrigues Carneiro, Nuno Tavares Martins, Sebastiana Lidielda Albuquerque da Silva, Maria Beatriz de Barros-Barreto, Sonia Barreto Pereira, Valeria Cassano
Summary: The first systematic molecular study of Ulva species in Brazil revealed that previously reported species were misidentified and confirmed the presence of a new species. Two new occurrences for Brazil were also discovered, expanding the geographic distribution of these species.
Review
Biodiversity Conservation
Michela Borges, Monica A. Petti, Marcelo Fukuda, Valeria Cassano, Mutue T. Fujii, A. Cecilia Z. Amaral
Summary: This article introduces the current status, funding, and future prospects of marine biological collections in the state of Sao Paulo, Brazil, emphasizing the need for joint efforts from researchers, institutions, and public authorities to protect and develop these collections.
