Dataset: Nearshore Shallow Subtidal Macroalgal Preburn, Postburn and Ash-Free Dry Weight Data from October 2022 (Galapagos 2021 project)

Final no updates expectedDOI: 10.26008/1912/bco-dmo.904710.1Version 1 (2023-07-18)Dataset Type:Other Field Results

Principal Investigator: John Bruno (University of North Carolina at Charlotte)

Student, Contact: Isabel Silva Romero (University of North Carolina at Chapel Hill)

BCO-DMO Data Manager: Sawyer Newman (Woods Hole Oceanographic Institution)


Project: Temperature Regulation of Top-Down Control in a Pacific Upwelling System (Galapagos 2021)


Abstract

Increased standing macroalgal biomass in upwelling zones is generally assumed to be the result of higher nutrient flux due to upwelled waters, However, other factors can strongly impact macroalgal communities. For example, herbivory and temperature, via their effects on primary producers and the metabolic demands of consumers, can also influence macroalgal biomass and productivity, respectively. Although there is a fair number of studies looking at the interactive effects of herbivores and nutr...

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Methods & Sampling:

Macroalgae accumulated in exclusion and open cages (deployed in the seafloor) was scraped and vacuumed into independent collection mesh bags after four-week trial in October 2022 (09/15 to 10/13).  Ash-Free Dry Weight (AFDW) of the macroalgae samples was determined by drying each sample in an oven for 24 hours at 60 °C and then burning it in a muffle furnace for 4 hours at 500  °C. 

 


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Methods

Brandt, M., Silva-Romero, I., Fernández-Garnica, D., Agudo-Adriani, E., Bove, C. B., & Bruno, J. F. (2022). Corrigendum: Top-down and bottom-up control in the Galápagos Upwelling System. Frontiers in Marine Science, 9. https://doi.org/10.3389/fmars.2022.1004011