Addressing the Problem of Harmful Algal Blooms in Latin America and the Caribbean- A Regional Network for Early Warning and Response

Cuéllar-Martínez, Tomasa; Alonso-Hernández, Carlos; Amaya, Oscar; Quintanilla, Rebeca; Carrillo-Ovalle, Hector Leonel; M, Natalia Arbeláez; Díaz-Asencio, Lisbet; Méndez, Silvia M.; Vargas, Maribelle; Chow-Wong, Ninoska Fabiola; Valerio-González, Lorelys; Enevoldsen, Henrik; Bottein, Marie‐Yasmine Dechraoui

doi:10.3389/fmars.2018.00409

Cited by 22 publications

(21 citation statements)

References 8 publications

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“…HABs and their toxins can also negatively impact aquatic birds (Jessup et al, 2009), fish (Chang et al, 1990;Lefebvre et al, 2005;Liefer et al, 2013;Rountos et al, 2014), shellfish (Botes et al, 2003Glibert et al, 2007), marine mammals (Scholin et al, 2000;Miller et al, 2010), and others. These impacts can range from the tropics (Friedman et al, 2008;Litaker et al, 2010;Cuellar-Martinez et al, 2018) to polar oceans (Berdalet et al, 2015;Lefebvre et al, 2016). In the past decade, the emerging issue of toxic cyanobacteria in estuarine ecosystems has generated additional concern (O'Neil et al, 2012) and expanded the list of affected marine mammals to those spanning the land-sea interface (Miller et al, 2010;Gibble and Kudela, 2014).…”

Section: Monitoring Habs For Early Detection Of Health Risksmentioning

confidence: 99%

Considerations in Harmful Algal Bloom Research and Monitoring: Perspectives From a Consensus-Building Workshop and Technology Testing

Stauffer

Bowers

Buckley³

et al. 2019

Front. Mar. Sci.

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Recurrent blooms of harmful algae and cyanobacteria (HABs) plague many coastal and inland waters throughout the United States and have significant socioeconomic impacts to the adjacent communities. Notable HAB events in recent years continue to underscore the many remaining gaps in knowledge and increased needs for technological advances leading to early detection. This review summarizes the main research and management priorities that can be addressed through ocean observationbased approaches and technological solutions for harmful algal blooms, provides an update to the state of the technology to detect HAB events based on recent activities of the Alliance for Coastal Technologies (ACT), offers considerations for ensuring data quality, and highlights both ongoing challenges and opportunities for solutions in integrating HAB-focused technologies in research and management. Specifically, technological advances are discussed for remote sensing (both multispectral satellite and hyperspectral); deployable in situ detection of HAB species on fixed or mobile platforms (based on bulk or taxa-specific biomass, images, or molecular approaches); and field-based and/or rapid quantitative detection of HAB toxins (via molecular and analytical chemistry methods). Suggestions for addressing challenges to continued development and adoption of new technologies are summarized, based on a consensus-building workshop hosted by ACT, including dealing with the uncertainties in investment for HAB research, monitoring, and management. Challenges associated with choosing appropriate technologies for a given ecosystem and/or management concern are also addressed, and examples of programs that are leveraging and combining complementary approaches are highlighted.

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Section: Monitoring Habs For Early Detection Of Health Risksmentioning

confidence: 99%

Considerations in Harmful Algal Bloom Research and Monitoring: Perspectives From a Consensus-Building Workshop and Technology Testing

Stauffer

Bowers

Buckley³

et al. 2019

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…In general, in Latin America there is a high local consumption of fish and shellfish from commercial and artisanal fisheries, including non-common species such as octopus and sea cucumber with poorly described accumulation kinetics, and from emerging aquaculture activities (Barón-Campis et al, 2014). The economic consequences of bHABs on human health and losses to the fishing, aquaculture and tourism industries in Latin America have not been comprehensively investigated, but informal estimates suggest that these are substantial (Cuellar-Martinez et al, 2018).…”

Section: Ocean Environment Human Health and Socio-economic Consequencesmentioning

confidence: 99%

“…Monitoring programs for bHAB species and their toxins in seafood are sporadic on a global scale. In Latin America only a few countries have implemented routine monitoring programs and these focus exclusively on commercial species (Cuellar-Martinez et al, 2018). With such inadequate monitoring protocols to protect human health, some fish species have been banned for human consumption, e.g., in Australia and French Polynesia, because of the risk of CFP (Lehane, 2000).…”

Section: Ocean Environment Human Health and Socio-economic Consequencesmentioning

confidence: 99%

“…In Cuba, an optimized receptor binding assay (RBA) has been used to detect CTXs (Díaz-Asencio et al, 2016), and the protocol supports the validation of the assay. This will allow the implementation of a monitoring program for CTXs in this country, but to date such technological approaches have not been widely deployed in Latin America (Cuellar-Martinez et al, 2018). In any case, in addition to the drawback of the lack of certified reference materials for many toxin analogs, none of these assay methods are adequate for full qualitative and quantitative determination of lipophilic bHAB toxin analogs in either plankton or seafood matrices.…”

Section: Amphidiniummentioning

confidence: 99%

“…Among the phycotoxin syndromes associated with benthic dinoflagellates in Latin America, human illnesses linked to CFP are clearly the most acute and socio-economically relevant, but little etiological information is available on a regional scale. Within Mexico, 25 relatively well documented cases of CFP have been reported between 1979 and 2014 (Cuellar-Martinez et al, 2018), and CTX has been found in tissues of several fish species in the Caribbean (Ley-Martinez et al, 2014). Ciguateric areas and fishes are well-known by inhabitants of Caribbean coasts, in particular, through experience from historical and recent cases of CFP.…”

Section: Amphidiniummentioning

confidence: 99%

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A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

2019

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Many benthic dinoflagellates are known or suspected producers of lipophilic polyether phycotoxins, particularly in tropical and subtropical coastal zones. These toxins are responsible for diverse intoxication events of marine fauna and human consumers of seafood, but most notably in humans, they cause toxin syndromes known as diarrhetic shellfish poisoning (DSP) and ciguatera fish poisoning (CFP). This has led to enhanced, but still insufficient, efforts to describe benthic dinoflagellate taxa using morphological and molecular approaches. For example, recently published information on epibenthic dinoflagellates from Mexican coastal waters includes about 45 species from 15 genera, but many have only been tentatively identified to the species level, with fewer still confirmed by molecular criteria. This review on the biodiversity and biogeography of known or putatively toxigenic benthic species in Latin America, restricts the geographical scope to the neritic zones of the North and South American continents, including adjacent islands and coral reefs. The focus is on species from subtropical and tropical waters, primarily within the genera Prorocentrum, Gambierdiscus/Fukuyoa, Coolia, Ostreopsis and Amphidinium. The state of knowledge on reported taxa in these waters is inadequate and time-series data are generally lacking for the prediction of regime shift and global change effects. Details of their respective toxigenicity and toxin composition have only recently been explored in a few locations. Nevertheless, by describing the specific ecosystem habitats for toxigenic benthic dinoflagellates, and by comparing those among the three key regions-the Gulf of Mexico, Caribbean Sea and the subtropical and tropical Pacific coast, insights for further risk assessment of the global spreading of toxic benthic species is generated for the management of their effects in Latin America.

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Flow velocity and light intensity combination is important for Microcystis aeruginosa physical suppression

Senavirathna,

Yan

2024

Water Environment Research

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The cyanobacterial response to flow velocity or light intensity deviates from the combined effect of both factors. The responses of Microcystis aeruginosa to different combinations of flow velocities and light intensities were tested. Growth (OD730 and protein), stress (catalase, ascorbate peroxidase, and glutathione peroxidase), and photosynthetic ability (chlorophyll‐a and fluorescence) parameters of M. aeruginosa were measured to evaluate the effects of different combinations. Exposure to different flow velocity–light combinations significantly affected the growth and physiology of M. aeruginosa. Flow velocities of 0.4 m s−1 showed a prominent influence on most of the measured parameters compared with no flow velocity or higher flow velocity conditions. The 1.2‐m s−1 flow velocity and high light intensity (1200 μmol m−2 s−1) exposure caused a significant elevation in oxidative stress. Lower velocities are beneficial for M. aeruginosa at light stress, whereas extreme velocities are adverse and elevate the stress. Two categories of light–velocity combinations were identified as preferred and extreme categories, depending on whether they suppressed or supported M. aeruginosa growth. In controlling cyanobacteria blooms using flow or high‐intensity light, it is imperative to consider the interaction of these two factors, as their combined effects can significantly vary the stress levels in cyanobacteria. A new system, designed to minimize mechanical damage on M. aeruginosa, was used to generate flow velocities. Additionally, the combined effects of flow velocities and light intensities have been considered for the first time.Practitioner Points Flow velocity can influence the effect of light on Microcystis aeruginosa. High light exposure effect on Microcystis aeruginosa can be reduced by low flow velocity. High flow velocity and high light exposure increase the stress on Microcystis aeruginosa. Different light intensities and flow velocity combinations changed Microcystis aeruginosa stress physiology.

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Addressing the Problem of Harmful Algal Blooms in Latin America and the Caribbean- A Regional Network for Early Warning and Response

Cited by 22 publications

References 8 publications

Considerations in Harmful Algal Bloom Research and Monitoring: Perspectives From a Consensus-Building Workshop and Technology Testing

Considerations in Harmful Algal Bloom Research and Monitoring: Perspectives From a Consensus-Building Workshop and Technology Testing

A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

Flow velocity and light intensity combination is important for Microcystis aeruginosa physical suppression

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