The global increase in harmful algal blooms (HABs) has become a growing concern over the years, and New York State (NYS) is no exception. The Finger Lakes region in NYS has been identified as a hotspot for HABs, with Cayuga Lake having the highest number of blooms reported. The Cayuga Lake HABs Monitoring Program has been tracking cHABs (dominant bloom taxa, chlorophyll A, and microcystin levels) since 2018. However, limited research has been conducted on the microbiome of HABs in this region. In this study, the microbiome of HABs in the Cayuga Lake was surveyed and compared with non-HAB baseline samples. Using 16S rDNA community analysis, common bloom-forming cyanobacteria, were identified, with Microcystis being the dominant taxa in high toxin blooms. Further, this study evaluated the ability of Microcystis mcyA qPCR to detect elevated levels of potential toxigenic Microcystis in water samples using both benchtop and handheld qPCR devices. The results showed good performance of the qPCR assay as a screening for high toxin versus low/no toxin blooms. Additionally, the handheld qPCR device holds potential for in-field rapid (<1 h) screenings for high toxin blooms. This study provides insights into the microbiome of HABs in Cayuga Lake and offers a potential tool for rapid screening of high toxin blooms.
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http://dx.doi.org/10.1016/j.jenvman.2024.120128 | DOI Listing |
Toxicon
December 2024
USDA Agricultural Research Service, Hydrology and Remote Sensing Laboratory, 10300 Baltimore Ave, Beltsville, MD, 20705, USA. Electronic address:
Cyanobacteria blooms were detected in 2017 and 2018 in Cayuga Lake, New York, with paralytic shellfish poisoning toxins (PSPTs) the primary toxin detected. Analysis of these samples by HPLC with chemical oxidation, receptor binding assay, ELISA, and LC-MS/MS confirmed the presence of PSPTs but each method gave highly unusual results based on the theory establishing each method. The structures of the toxins could not be identified and may be 'unusual' or unelucidated PSPTs.
View Article and Find Full Text PDFJ Environ Manage
March 2024
Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA. Electronic address:
The global increase in harmful algal blooms (HABs) has become a growing concern over the years, and New York State (NYS) is no exception. The Finger Lakes region in NYS has been identified as a hotspot for HABs, with Cayuga Lake having the highest number of blooms reported. The Cayuga Lake HABs Monitoring Program has been tracking cHABs (dominant bloom taxa, chlorophyll A, and microcystin levels) since 2018.
View Article and Find Full Text PDFBMJ Open
July 2022
Department of Critical Care and Anaesthesia, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia.
Objectives: To inform national planning, six indicators posed by the Commission on Global Surgery were collected for the Mongolian surgical system. This situational analysis shows one lower middle-income country's ability to collect the indicators aided by a well-developed health information system.
Design: An 11-year retrospective analysis of the Mongolian surgical system using data from the Health Development Center, National Statistics Office and Household Socio-Economic Survey.
Ecotoxicology
December 2020
Finger Lakes Institute, Hobart and William Smith Colleges, Geneva, NY, 14556, USA.
Deleterious health effects in humans and wildlife are associated with the consumption of fish contaminated by mercury (Hg). This study was conducted to assess Hg concentrations in biota of the Finger Lakes (New York, USA), a region where fisheries are important for the economy but where no assessment of the drivers of food web Hg dynamics exists to date. Additionally, this region is of interest for the study of Hg bioaccumulation because of the importance of agricultural land cover, which can affect lake trophic status and thus the bioavailability of methyl Hg (MeHg).
View Article and Find Full Text PDFEcotoxicology
December 2020
Division of Fish and Wildlife, New York State Department of Environmental Conservation, 625 Broadway, Albany, NY, 12233, USA.
We collected 849 fish of 16 species from New York portions of Lake Erie, Lake Ontario and the intervening Niagara River and its tributary Cayuga Creek, and analyzed fillets from individual fish for total mercury. Concentrations ranged from 0.029 to 1.
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