4.4 Article

Improving satellite monitoring of coastal inundations of pelagic Sargassum algae with wind and citizen science data

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Mapping and quantifying pelagic Sargassum in the Atlantic Ocean using multi-band medium-resolution satellite data and deep learning

Chuanmin Hu et al.

Summary: Pelagic Sargassum is an important habitat for marine animals in the Atlantic Ocean, but frequent beaching events around the Caribbean Sea have caused problems. Current assessment and monitoring methods rely on satellite imagery and algorithms, but there are limitations and weaknesses in detecting nearshore waters and dealing with cloud interference. A deep-learning model called U-net was developed to overcome these difficulties, and it showed improved accuracy and data coverage compared to the current model.

REMOTE SENSING OF ENVIRONMENT (2023)

Article Environmental Sciences

First assessment of Atlantic open ocean Sargassum spp. metal and metalloid concentrations

Emilie Pauline Dassie et al.

Summary: The study conducted a preliminary assessment of open ocean Sargassum spp. element concentrations, finding that overall levels were relatively low compared to previous results, with the exception of As which needs careful consideration.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2022)

Article Environmental Sciences

Trace elements in pelagic Sargassum species in the Mexican Caribbean: Identification of key variables affecting arsenic accumulation in S. fluitans

Paulina Annette Ortega-Flores et al.

Summary: Since 2014, the Mexican Caribbean beaches have been heavily affected by massive influxes of brown seaweed Sargassum, leading to serious ecological and economic consequences. This study found significant differences in concentrations of trace elements in different species and seasons, with season, copper, iron, uronic acids, and sulfate being the main variables associated with arsenic accumulation in Sargassum.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Plant Sciences

Community-based monitoring reveals spatiotemporal variation of sargasso inundation levels and morphotype dominance across the Caribbean and South Florida

Lowell Andrew R. Iporac et al.

Summary: During the past decade, massive inundations of the holopelagic Sargassum spp. have significantly impacted beaches and coasts in the tropical Atlantic. This study characterized the spatiotemporal variation in accumulation levels and morphotype composition of the sargasso. The findings suggest that Florida and the Gulf coast have shown less susceptibility to high accumulations compared to other subregions, and the composition and accumulation levels are influenced by proximity to the Great Atlantic Sargassum Belt and dispersal through wind and water currents.

AQUATIC BOTANY (2022)

Article Geosciences, Multidisciplinary

Sinking Sargassum

Nathan F. Putman et al.

Summary: Blooms and coastal inundations of pelagic Sargassum have caused major problems to coastal communities and ecosystems throughout the tropical Atlantic over the past decade. Understanding Sargassum growth, movement, and mortality is essential to being able to predict and mitigate these events.

GEOPHYSICAL RESEARCH LETTERS (2022)

Article Nanoscience & Nanotechnology

Dynamical geography and transition paths of Sargassum in the tropical Atlantic

F. J. Beron-Vera et al.

Summary: By analyzing data from ocean drifters, this study reveals the similarity between the distribution of probability density and the observed high concentration belt of Sargassum in the tropical Atlantic. It also identifies a northwest basin in the Gulf of Mexico that attracts Sargassum, which is weakly connected to the Sargasso Sea but includes nutrient-rich regions and an upwelling system off the coast of West Africa. Transition Path Theory is then applied to infer potential pathways for Sargassum invasion, showing two possible routes from the African coast into the Intra-Americas Seas.

AIP ADVANCES (2022)

Article Meteorology & Atmospheric Sciences

Clustering analysis of the Sargassum transport process: application to beaching prediction in the Lesser Antilles

Didier Bernard et al.

Summary: This study aims to improve the prediction of Sargassum beachings in the Lesser Antilles by using clustering analysis methods. The analysis showed that different current regimes are related to the occurrence of beachings at different times. The results indicate that HYCOM data are more suitable for assessing the coastal Sargassum hazard.

OCEAN SCIENCE (2022)

Editorial Material Environmental Sciences

The silent spring of Sargassum

Damien A. Devault et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Article Environmental Sciences

Satellite remote sensing of pelagic Sargassum macroalgae: The power of high resolution and deep learning

Mengqiu Wang et al.

Summary: This study successfully extracts Sargassum features and quantifies Sargassum biomass density or areal coverage by combining high-resolution satellite data and deep learning methods, thus filling the knowledge gap in this field. The results show certain differences in the outcomes from different sensors, with higher-resolution sensors detecting more Sargassum features.

REMOTE SENSING OF ENVIRONMENT (2021)

Article Environmental Sciences

Trends in regional enterococci levels at marine beaches and correlations with environmental, global oceanic changes, community populations, and wastewater infrastructure

Lara E. Tomenchok et al.

Summary: Based on data analysis over the past 20 years, recreational beaches in Miami-Dade County, south Florida, have shown a continuous increase in enterococci levels, with a significant spike during 2015-2019. The investigation found a significant correlation between enterococci levels and Sargassum, while population, air temperature, and sea level also demonstrated strong correlations.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Oceanography

Beaching and Natural Removal Dynamics of Pelagic Sargassum in a Fringing-Reef Lagoon

Jantien Rutten et al.

Summary: This study characterizes the temporal variation in the arrival and beaching of Sargassum in a reef lagoon, revealing interannual variability in the arrival season and a decrease in nearshore Sargassum mat size with decreasing wave/wind energy. Natural wrack removal was observed under elevated water levels and increased wave action, with three types of wrack removal distinguished based on water levels relative to berm height. Higher energy waves were found to help flush part of the wrack out of the reef lagoon.

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS (2021)

Article Computer Science, Artificial Intelligence

Collective view: mapping Sargassum distribution along beaches

Javier Arellano-Verdejo et al.

Summary: The arrival of atypical pelagic Sargassum on Mexican Caribbean beaches has caused significant economic and ecological damage, and presented new challenges for coastline monitoring. This study proposes an innovative approach called Collective View, utilizing crowdsourcing for image collection, deep learning for automatic classification, and geographic information systems for visualization. The findings demonstrate that AlexNet performed best in classifying images of Sargassum, showing a maximum recall rate of 94%.

PEERJ COMPUTER SCIENCE (2021)

Article Engineering, Marine

Assessment of a Smartphone-Based Camera System for Coastal Image Segmentation and Sargassum monitoring

Nico Valentini et al.

JOURNAL OF MARINE SCIENCE AND ENGINEERING (2020)

Article Meteorology & Atmospheric Sciences

The ERA5 global reanalysis

Hans Hersbach et al.

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY (2020)

Article Ecology

Improving transport predictions of pelagic Sargassum

Nathan F. Putman et al.

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY (2020)

Article Geosciences, Multidisciplinary

Clustering of Marine-Debris- andSargassum-Like Drifters Explained by Inertial Particle Dynamics

P. Miron et al.

GEOPHYSICAL RESEARCH LETTERS (2020)

Article Environmental Sciences

Hindcasting the 2017 dispersal of Sargassum algae in the Tropical North Atlantic

Leo Berline et al.

MARINE POLLUTION BULLETIN (2020)

Article Marine & Freshwater Biology

PELAGIC SARGASSUM PREDICTION AND MARINE CONNECTIVITY IN THE TROPICAL ATLANTIC

Donald R. Johnson et al.

GULF AND CARIBBEAN RESEARCH (2020)

Article Computer Science, Information Systems

The cottage effect' in citizen science? Spatial bias in aquatic monitoring programs

Edward E. Millar et al.

INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE (2019)

Article Geosciences, Multidisciplinary

Inertia Influences Pelagic Sargassum Advection and Distribution

Maureen T. Brooks et al.

GEOPHYSICAL RESEARCH LETTERS (2019)

Article Multidisciplinary Sciences

The great Atlantic Sargassum belt

Mengqiu Wang et al.

SCIENCE (2019)

Article Remote Sensing

On the continuity of quantifying floating algae of the Central West Atlantic between MODIS and VIIRS

Mengqiu Wang et al.

INTERNATIONAL JOURNAL OF REMOTE SENSING (2018)

Article Environmental Sciences

Mapping and quantifying Sargassum distribution and coverage in the Central West Atlantic using MODIS observations

Mengqiu Wang et al.

REMOTE SENSING OF ENVIRONMENT (2016)

Article Ecology

Effect of sampling protocol and volunteer bias when sampling for macroinvertebrates

Julia Frost Nerbonne et al.

JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY (2008)