Article
Engineering, Marine
Anglu Shen, Hongyue Liu, Quandong Xin, Qingjing Hu, Xinliang Wang, Jufa Chen
Summary: Phosphorus is an essential nutrient for phytoplankton growth and regulates the succession of diatoms and dinoflagellates blooms in the East China Sea. This study investigated the growth interactions among major bloom-forming species and revealed that the survival strategies of Prorocentrum donghaiense and Karenia mikimotoi were superior to Skeletonema costatum in bi-algal cultures. The competition results varied with different P concentrations and sources, providing evidence for understanding the bloom succession in the ECS.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane
Summary: The assumption that there is a decline in phytoplankton abundance and productivity during temperate winters due to low irradiance and temperatures is widely accepted. However, winter phytoplankton blooms are often observed in temperate estuaries, but the lack of winter water quality monitoring makes them undocumented. The limited in situ research on winter blooms suggests that they can have significant impacts on ecosystems, but the extent and duration of these blooms are unclear due to reduced monitoring during winter.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
Mati Kahru, Clarissa Anderson, Andrew D. Barton, Melissa L. Carter, Dylan Catlett, Uwe Send, Heidi M. Sosik, Elliot L. Weiss, B. Greg Mitchell
Summary: As harmful algae blooms become more frequent, a new generation of high spectral resolution satellite missions aims to utilize satellite optical data to monitor these events. Recently, a satellite-based algorithm was used to monitor a massive bloom of the dinoflagellate Lingulodinium polyedra off Southern California in April and May 2020, marking the first time this algorithm was utilized for such purpose. New algorithms utilizing UV bands from upcoming satellites are needed for better monitoring of phytoplankton blooms, especially potentially harmful algal blooms, across large spatiotemporal scales.
ELEMENTA-SCIENCE OF THE ANTHROPOCENE
(2021)
Article
Ecology
Malcolm E. Scully, W. Rockwell Geyer, David Borkman, Tracy L. Pugh, Amy Costa, Owen C. Nichols
Summary: In late summer of 2019 and 2020, bottom waters in southern Cape Cod Bay experienced oxygen depletion and benthic mortality. This could be attributed to changes in physical conditions, including warming waters and shifting summer wind direction, which have significant implications for water column structure and phytoplankton dynamics.
Article
Limnology
Yuan Tian, Simin Hu, Xianzhi Lin, Hui Huang, Xingyu Song, Yan Yan, Xuedong Xie, Tao Li, Sheng Liu
Summary: Based on historical data and experiments, the study found that temperature rise, spring tide, and strong winds may contribute to the frequent blooms of Scrippsiella trochoidea in Daya Bay, South China Sea.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2021)
Review
Oceanography
Noelia L. Trifoglio, Hector F. Olguin Salinas, Claudio A. Franzosi, Viviana A. Alder
Summary: This study investigates the seasonal succession of phytoplanktonic and protozoan communities in Scotia Bay, Antarctica. The study also examines the relationship between these communities and environmental variables. The findings show variations in dominant species and their association with sea ice breakout and wind events in different years and seasons.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Geography, Physical
Qian Wang, Xiangdong Yang, Bing Song
Summary: This study used high-resolution diatoms to reconstruct temperature and environmental variability in the Indian summer monsoon region over the past 20,000 years. The results show a warming trend and strengthening of the monsoon since the Last Glacial Maximum, with a significant warm interval during the mid-Holocene. Changes in fossil diatom assemblages were closely linked with global and Indian monsoon climate changes. The abrupt temperature increases during the Late-glacial/Holocene transition confirm the importance of climate change in restructuring biological communities.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Microbiology
Kevin Drouet, Cecile Jauzein, Dominique Herviot-Heath, Saeed Hariri, Aitor Laza-Martinez, Cyrielle Lecadet, Martin Plus, Sergio Seoane, Marc Sourisseau, Rodolphe Lemee, Raffaele Siano
Summary: During a sampling campaign in August to September 2018, microscope analysis revealed that the Ostreopsis cf. siamensis mainly thrived in the southeast of Bay of Biscay where optimal temperatures promoted its blooms. Quantitative PCR analyses showed its presence across almost the whole bay and extending to the western English Channel. Time-series eDNA data collected suggested the species occurrence from April to September in the bay.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Biodiversity Conservation
Yunyan Deng, Fengting Li, Zhangxi Hu, Caixia Yue, Ying Zhong Tang
Summary: Dinoflagellates are unicellular microalgae playing crucial roles in aquatic ecosystems, while small heat shock proteins (sHsps) are a family of molecular chaperones found ubiquitously in all domains of life. The study revealed a high level of diversity in the sHsp gene family of dinoflagellates and a close relationship with sHsps from green algae. Moreover, the expression of sHsps in dinoflagellate resting cysts buried in marine sediment suggests a potential role in maintaining dormancy or adapting to environmental conditions.
Proceedings Paper
Ecology
T. Sidabutar, E. S. Srimariana
Summary: Research in Jakarta Bay analyzed the distribution and abundance of dinoflagellate cysts in sediments, providing early warnings for the presence of toxic species. The abundance of cysts in sediment layers is higher near the coast, and may be related to certain hydrological parameters.
3RD INTERNATIONAL CONFERENCE ON FISHERIES AND MARINE SCIENCES
(2021)
Article
Meteorology & Atmospheric Sciences
Yann Blanchard, Jacques Pelon, Christopher J. Cox, Julien Delanoe, Edwin W. Eloranta, Taniel Uttal
Summary: This study focuses on the accuracy of longwave radiation flux retrievals at the top and bottom of the atmosphere at Eureka station, Canada, in the high Arctic. The results show good agreement between radiative transfer calculations using ground-based lidar-radar profiles derived at Eureka and LW fluxes observed by CERES and reference LW fluxes at the bottom of the atmosphere. Identifying biases in different products and contributing factors helps to understand the complexities of longwave radiation flux retrievals in the Arctic region.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Geochemistry & Geophysics
P. P. Leena, N. Sravanthi, V. Anil Kumar, G. Pandithurai, A. S. Panicker
Summary: This study explores the variability, trends, and relationships of aerosol, cloud, and rainfall over three regions in the Indian subcontinent. Significant increases in aerosol properties were observed over the past two decades, impacting cloud and rainfall characteristics. Linear fit analysis confirmed aerosol-cloud-rain rate relationships during the summer monsoon period.
PURE AND APPLIED GEOPHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Agnieszka Wasilowska, Andrzej Tatur, Marek Rzepecki
Summary: The study revealed a rare phytoplankton bloom event near King George Island in Admiralty Bay during the summer of 2009/2010, which is different from the usual environmental conditions that do not support large phytoplankton blooms. This could be attributed to the edge of melting sea ice providing nutrients after a cold winter.
JOURNAL OF MARINE SYSTEMS
(2022)
Article
Multidisciplinary Sciences
Catarina Churro, Ana P. Semedo-Aguiar, Alexandra D. Silva, Jose B. Pereira-Leal, Ricardo B. Leite
SCIENTIFIC REPORTS
(2020)
Article
Marine & Freshwater Biology
Raquel A. F. Neves, Miguel A. Pardal, Silvia M. Nascimento, Alexandra Silva, Paulo J. Oliveira, Elsa T. Rodrigues
AQUATIC TOXICOLOGY
(2020)
Article
Oceanography
Mariana Santos, Helena Mourino, Maria Teresa Moita, Alexandra Silva, Ana Amorim, Paulo B. Oliveira
CONTINENTAL SHELF RESEARCH
(2020)
Article
Environmental Sciences
Ana C. Brito, Paloma Garrido-Amador, Carla Gameiro, Marta Nogueira, Maria Teresa Moita, Maria Teresa Cabrita
Article
Marine & Freshwater Biology
Eileen Bresnan, Fabiola Arevalo, Catherine Belin, Maria A. C. Branco, Allan D. Cembella, Dave Clarke, Jorge Correa, Keith Davidson, Monika Dhanji-Rapkova, Raul Fernandez Lozano, Margarita Fernandez-Tejedor, Hafsteinn Guofinnsson, David Jaen Carbonell, Aitor Laza-Martinez, Maud Lemoine, Adam M. Lewis, Luz Maman Menedez, Benjamin H. Maskrey, April McKinney, Yolanda Pazos, Marta Revilla, Raffaele Siano, Alexandra Silva, Sarah Swan, Andrew D. Turner, Laura Schweibold, Pieter Provoost, Henrik Enevoldsen
Summary: The study utilized the IOC-ICES-PICES Harmful Algal Event Database to examine the diversity and spatiotemporal distribution of harmful algal events along the Atlantic margin of Europe from 1987-2018, showcasing different toxin groups and regional differences.
Article
Oceanography
J. M. Magalhaes, A. C. Pires, J. C. B. da Silva, M. C. Buijsman, P. B. Oliveira
Summary: Physical oceanography increasingly uses satellite remote sensing to survey the under-sampled ocean, with the latest Synthetic Aperture Radars (SARs) providing continuous monitoring. This study documents the horizontal structure of Internal Solitary Waves (ISWs) between two submarine canyons off the Western Iberian Peninsula using SAR images. The study investigates using a sea surface energy proxy as an indicator for high-energy ISW interaction events, and highlights the importance of understanding ISW vertical structure changes during wave-wave interactions in coastal regions.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Environmental Sciences
Marcos Mateus, Miguel Remondes, Ligia Pinto, Alexandra Silva
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Oceanography
Jorge Ramos, Miriam Tuaty-Guerra, Mariana Almeida, Ana C. Raposo, Maria J. Gaudencio, Alexandra D. Silva, Nuno Rodrigues, Sergio M. Leandro, Miguel Caetano
Summary: The Nazare acute accent artificial reef (NAR) off the western coast of Portugal aimed to improve social and economic resilience of local communities by creating a safer and closer area for fishing. The reef, developed using a multidisciplinary approach, was found to be mature and colonized by various macrobenthic assemblages without negative impacts on soft bottom macrofauna. It also contributed to fish aggregation, particularly attracting small fish species, thereby potentially benefitting the local fishing community.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Iria Garcia-Moreiras, Anabela Oliveira, Ana Santos, Paulo B. Oliveira, Ana Amorim
Summary: The study analyzed the distribution of modern dinoflagellate cysts in the NW Iberian shelf, revealing significant land-sea and latitudinal gradients, as well as the influence of environmental factors on cyst composition and abundances. The findings provide insight into the ecological signals present in the cyst assemblages and suggest the potential use of cyst records as evidence for past marine ecosystem reconstructions in the region.
FRONTIERS IN MARINE SCIENCE
(2021)
Review
Environmental Sciences
Jose A. Fernandes-Salvador, Keith Davidson, Marc Sourisseau, Marta Revilla, Wiebke Schmidt, Dave Clarke, Peter I. Miller, Paola Arce, Raul Fernandez, Luz Maman, Alexandra Silva, Callum Whyte, Maria Mateo, Patricia Neira, Marcos Mateus, Manuel Ruiz-Villarreal, Luis Ferrer, Joe Silke
Summary: The shellfish aquaculture industry in the European Atlantic Arc is impacted by harmful algal blooms that produce biotoxins accumulating in shellfish flesh, affecting consumer health. Regulatory monitoring focuses on harmful cells and toxin concentrations, but there is a need for early warning systems for business planning. Web portals and operational Early Warning Systems (EWS) are being developed, incorporating environmental data parameters and varied forecasting approaches to mitigate HAB-generated harmful effects. Advanced EWS include satellite data and oceanographic modeling to predict HAB behavior, with traffic light indices for easy risk assessment and expert interpretation of multiple data streams for future risk assessment. Proof-of-concept EWS combine model information with in-situ data, sometimes using machine learning-based approaches.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Ecology
P. Fonseca, A. D. Silva, M. M. Angelico, S. Garrido
Summary: This study investigated the diets of three abundant coastal pelagic fish species in the eastern Atlantic and estimated the impact of cannibalism and intraguild predation on egg mortality. The study found that there was diet overlap between the three species, but their diets varied. Sardine was found to have the greatest impact on fish egg mortality.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Oceanography
Ines Farias, Silvia Perez-Mayol, Sofia Vieira, Paulo B. Oliveira, Ivone Figueiredo, Beatriz Morales-Nin
Summary: This study explores the use of otolith microchemical composition as a tool to differentiate A. carbo specimens caught in different areas, and studies the potential birth areas and spatial migration patterns throughout the species' life cycle. The results show that otolith microchemical composition can discriminate the locations where specimens were caught, supporting the separation between the northern and southern distribution areas of A. carbo. The study also suggests the existence of two natal sources and confirms the migratory behavior of A. carbo.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2022)
Article
Oceanography
Jorge M. Magalhaes, Jose C. B. da Silva, Rita Nolasco, Jesus Dubert, Paulo B. Oliveira
Summary: This study assesses the variability of coastal internal wave systems off the western Portuguese shelf using satellite imagery and temperature records. The data shows significant variability on timescales of a few days. A regional ocean circulation model and linear theory are used to analyze the impact of mesoscale variability on the observed internal wave patterns.
CONTINENTAL SHELF RESEARCH
(2022)
Article
Marine & Freshwater Biology
Mariana Santos, Maria Teresa Moita, Paulo B. Oliveira, Ana Amorim
Summary: The study investigated the main meteorological and oceanographic drivers influencing phytoplankton community structure and dynamics in two wide-open bays influenced by coastal upwelling. Significant spatial and seasonal differences were observed in phytoplankton community patterns between Lisbon Bay and Lagos Bay. The occurrence and persistence of harmful algal blooms were found to be higher in Lagos Bay compared to Lisbon Bay, with different influencing factors shaping the phytoplankton communities in the two bays.
JOURNAL OF SEA RESEARCH
(2021)