Assessment of Sargassum spp. management strategies in southeast Florida

Abdool-Ghany, Afeefa A.; Blare, Trent; Solo‐Gabriele, Helena M.

doi:10.1016/j.rcradv.2023.200175

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…On the other hand, [31] mentions that, initially, organic substances can be oxidized to CO 2 and H 2 O in the presence of oxygen; later, with the reduction of oxygen, they pass through a hydrolysis phase, in which the contained humidity of the waste increases and gives way to a process of the dissolution of organic matter [39]. Moreover, it has been pointed out that in the processes of hydrolysis of seaweed, during the first weeks of the process, there is a large release of soluble organic matter [40], so this would explain the gradual increase in the volume of leachate generated. Similarly, other studies [41,42] found that the solubilization of organic waste components occurs in the early stages of degradation and, as the process stabilizes, leachate generation decreases.…”

Section: Variation Of Volumes Per Year and Per Sitementioning

confidence: 99%

Assessment of Leachate Generated by Sargassum spp. in the Mexican Caribe: Part 1 Spatial Variations

Leal-Bautista,

Rodriguez-Garcia,

Acosta-González

et al. 2024

Water

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In this study, we evaluate the degradation by Sargassum spp. as a consortium in 2020 and 2021, and by species during 2021, collected at different distances from a coastline and in land deposits. The year 2021 had the largest leachate volume and the offshore site with the highest volume (60 mL/day) among five sites of collection. In relation to species’ leachate generation, S. fluitans reached 47.67 mL/day as its peak, which is earlier than S. natans (41.67 mL/day 14 days after S. fluitans). pH shows alkaline behavior and EC reflects the saline condition in the leachate, the consortium and species reaching values of pH 7.5 to 8.3 and 80 to 150 mS/cm of EC; the results do not show significant differences among sites, or between species. Despite a BOD/COD ratio of less than 0.1, the degradation process occurs as evidenced by the presence of leachate. The results confirm the existence of a variability in leachate production and the composition of Sargassum under the influence of factors such as the periodicity, site of collection, and proportions of species. Thus, even though these results emphasize leachate generation, knowing the limitations of leachate generation is crucial information for decision making on Sargassum storage and environmental management.

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Section: Variation Of Volumes Per Year and Per Sitementioning

confidence: 99%

Assessment of Leachate Generated by Sargassum spp. in the Mexican Caribe: Part 1 Spatial Variations

Leal-Bautista,

Rodriguez-Garcia,

Acosta-González

et al. 2024

Water

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“…Several factors contribute to this variability, including differences in local labour and equipment costs, variations in the density and accessibility of algae, and the specific methodologies employed for removal [40,85]. Furthermore, environmental regulations governing removal can also differ from one jurisdiction to another, affecting the overall costs [86]. Costs can also be influenced by the urgency of removal; an immediate need for clearing algae due to tourism concerns or health hazards could escalate costs [40].…”

Section: Speciesmentioning

confidence: 99%

Brown algae invasions and bloom events need routine monitoring for effective adaptation

Almela,

Tompkins,

Dash

et al. 2023

Environ. Res. Lett.

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Brown algae blooms and invasions have affected 29% of the Earth’s coast, yet there is sparse evidence of the impacts and adaptations of these events. Through a systematic review of empirical literature on these blooms and invasions, we explore the prevalence of conventional analyses of environmental, economic, and social impacts, as well as opportunities for adaptation and valorisation. The study reveals crucial inconsistencies in the current evidence base on algae impacts: fragmented metrics for quantifying blooms and their effects; inconsistent application and testing of prevention measures (e.g. forecasting, early warning systems); reliance on removal as a management approach with limited evidence of associated costs; and scant evidence of the effectiveness of impact mitigation or adaptation strategies. With a focus on economic and societal dimensions of algae events, we introduce emerging opportunities within the blue economy for bloom utilization. The findings highlight the crucial need for harmonized monitoring protocols, robust cost-benefit analysis of management and adaptation options, and evidence of pathways to valorisation of algae biomass.

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