Abstract:

Abundances of viruses, prokaryotes, diatoms, dinoflagellates, ciliates and heterotrophic nanoflagellates were determined over time in mesocosm experiments measuring the effects of oil, dispersant and dispersed oil on the microbial loop. Two separate experiments were carried out in June and August 2011. Abundances in the treated mesocosms were compared to a no addition control and a glucose addition control.

Suggested Citation:

Ortmann, Alice. 2015. Dataset for: Dispersed Oil disrupts Microbial Pathways in Pelagic Food Webs. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7SF2T5Z

Publications:

Ortmann, A. C., Anders, J., Shelton, N., Gong, L., Moss, A. G., & Condon, R. H. (2012). Dispersed Oil Disrupts Microbial Pathways in Pelagic Food Webs. PLoS ONE, 7(7), e42548. doi:10.1371/journal.pone.0042548

Purpose:

These experiments were designed to quantify the effects of oil, dispersant and dispersed oil on the coastal pelagic microbial food web.

Data Parameters and Units:

Experiment - Month experiment conducted, Time: Time sample collected relative to addition of treatments (t=0)n Treatment: Control = No addition controls, Dispersant = Corexit 9500A treatment representing addition of 0.7mM carbon, Glucose = glucose treatment representing addition of 3.0 mM carbon, Oil = MC252 treatment oil representing addition of 30 mM of carbon, Oil + Dispersant = MC252 and Corexit 9500A treatment representing addition of 30.7mM carbon, HNF/ml = heterotrophic nanoflagellate abundance (per milliliter), Temperature (degrees Celsius), DO = dissolved oxygen (milligrams per liter), Salinity practical salinity units, Time – Nutrients: Time samples were collected for nutrient analysis relative to addition of treatments (t=0), DIN = dissolved inorganic nitrogen (micromoles)

Individual Files: