Abstract:

This dataset reports percent mortality, egg production rates, hatching percent, and egestion rates for three species of copepods (Acartia tonsa, Temora turbinata, Parvocalanus crassirostris). Plankton were exposed to four experimental treatments for 48 hours including a control, dispersant (Corexit 9500A), dispersant plus crude oil, and crude oil alone. Zooplankton samples collected from Port Aransas, TX in August and October, 2013. Samples were collected from surface waters and larger plankton were removed using a 2000 um sieve.

Suggested Citation:

Almeda, Rodrigo, et al. 2016. Dataset for: Ingestion and sublethal effects of physically and chemically (Corexit) dispersed crude oil on marine planktonic copepods. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7NZ85P1

Publications:

Almeda, R., Baca, S., Hyatt, C., & Buskey, E. J. (2014). Ingestion and sublethal effects of physically and chemically dispersed crude oil on marine planktonic copepods. Ecotoxicology, 23(6), 988–1003. doi:10.1007/s10646-014-1242-6

Almeda, R., Harvey, T. E., Connelly, T. L., Baca, S., & Buskey, E. J. (2016). Influence of UVB radiation on the lethal and sublethal toxicity of dispersed crude oil to planktonic copepod nauplii. Chemosphere, 152, 446–458. doi:10.1016/j.chemosphere.2016.02.129

Purpose:

To determine the acute toxicity of the dispersant Corexit® 9500A on marine copepods.

Data Parameters and Units:

revised_Almeda et al. 2014_copepodsoildisp.xlsx-- lethal effects: species, incubation time (hours), treatment (listed below), % mortality, concentration (Ind./L) sublethal effects: treatment, species, date (MM/YYYY), eggs/female/d (the number of eggs produced per female per day, egg production date), Hatching % (the number of nauplii to total number of observed eggs and nauplii after 48 hrs), fecal pellets/cop/d (the number of fecal pellets produced by copepod per day, egestion rate) Treatments: control = absence of pollutants oil = suspensions of crude oil droplets in seawater dispersed physically (1 uL/L) oil+disp = dispersant-treated crude oil emulsions (crude oil emulsions in seawater dispersed physically and chemically, 1uL/L of crude oil + 0.05 uL/L of dispersant) disp = a solution of dispersant alone in seawater (0.05 uL/L) A, B, C, and D are the different Replicates

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