Using artificial substrates to quantify Gambierdiscus and other toxic benthic dinoflagellates for monitoring purposes

Autor: Patricia A. Tester, R. Wayne Litaker, Emilio Soler-Onís, Juan Fernández-Zabala, Elisa Berdalet
Přispěvatelé: National Oceanic and Atmospheric Administration (US), Intergovernmental Oceanographic Commission of UNESCO, Scientific Committee on Oceanic Research, Agencia Estatal de Investigación (España)
Rok vydání: 2022
Předmět:
Zdroj: Harmful algae. 120
ISSN: 1878-1470
Popis: Special issue Marine Benthic Harmful Algal Blooms.-- 9 pages, 3 figures, supplementary materials https://doi.org/10.1016/j.hal.2022.102351.-- Data Availability: Data are included in Supplementary Table S1
Collecting methods generally used to determine cell abundances of toxic benthic dinoflagellates (BHAB) use cells dislodged from either macrophytes or artificial substrates. This article compares the advantages of the macrophyte and artificial substrate methods and discusses which method is more appropriate for use in monitoring programs that focus on toxic BHAB species identification and quantification. The concept of benthic dinoflagellate “preference” for specific macrophytes was also reviewed. Examination of data from 75 field studies showed macrophytes with higher surface area per unit biomass harbored higher concentrations of Gambierdiscus cells. There was no definitive evidence that cells were actively selecting one macrophyte over another. This observation supports the use of artificial substrates (AS) as a means of assessing cell abundances in complex habitats because cell counts are normalized to a standardized surface area, not macrophyte biomass. The artificial substrate method represents the most robust approach, currently available, for collecting toxic, benthic dinoflagellates for a cell-based early warning system
The FAO-WHO-IOC-IAEA effort to provide guidance on implementation of early warning systems for harmful algal blooms inspired this effort as did the special session at ICHA202, the DINO12 Conference and its associated BHAB Sampling Workshop (supported by MAC2/4.6d/249 MIMAR + project framework). Funding was also provided by NOAA and the CoCliME project (Grant 6904462) endorsed by the international program of IOC, UNESCO and SCOR GlobalHAB (www.globalhab.info)
With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S)
Databáze: OpenAIRE
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