Abstract
This dataset contains experimental data on the biodegradation of oil in the sediment and effect of marine snow on oil biodegradation (oxygen consumption and n-alkane biodegradation).
Purpose
To understand oil degradation in the settled marine snow and the effect of bioturbation on oil biodegradation in the sediment layer.
Keywords
Oil Biodegradation, Marine Snow
UDI
R4.x267.179:0017
Date
April 2017
Point of Contact
Name
Shokouh Rahsepar
Organization
Wageningen University / Environmental Technology
Name
Albertinka J. Murk
Organization
Wageningen University / Environmental Toxicology and Technology
Funding Source
RFP-4
DOI
10.7266/N7125QPZ
Rights Information
This work is licensed under a
Creative Commons Public Domain Dedication 1.0 License.
Scholar Commons Citation
Rahsepar, Shokouh. 2017. Marine snow hampers oil biodegradation in an ocean sediment layer. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7125QPZ
Comments
Extent
Dataset contains laboratory measurements of oil degradation, no field sampling involved
Supplemental Information
The following is a list of data parameters and units per tab within the data file: Con. 1, GC data [n-alkanes (C9-C35) using C30-hopane (17a(H),21b(H)-hopane) normalized areas]: 1At1, 1Bt1, 1Ct1: 1 (refers to condition number), A (refers to replicates, A, B and C), t1 (refers to time (day), day 1st of incubation). Avg: refers to average of the three replicates (A, B and C). stdev: refers to standard deviation between three replicates; C9 - C35 – normalized area per n-alkane; Con. 3, GC data [n-alkanes (C9-C35) using C30-hopane (17a(H),21b(H)-hopane) normalized areas]: 1At1, 1Bt1, 1Ct1: 1 (refers to condition number), A (refers to replicates, A, B and C), t1 (refers to time (day), eg. day 1st of incubation). Avg: refers to average of the three replicates (A, B and C). stdev: refers to standard deviation between three replicates; C9 - C35 – normalized area per n-alkane; Temperature [Temperature (degree Celsius) in the water sample of aquaria]: Conditions – (Condition 1: “Snow + Oil”, Condition 2: “Snow”, Condition 3: “Oil”, Condition 4: “Clay control”, Condition 5: “Sediment control”); Replicates – (a, b, c); Day 0, 1, 3, 6, 9, 16, 21, 23, 29, 36, 42 – temperature of water sample per condition/replicate (C); Salinity [Salinity (‰) in the water sample of aquaria]: Conditions – (Condition 1: “Snow + Oil”, Condition 2: “Snow”, Condition 3: “Oil”, Condition 4: “Clay control”, Condition 5: “Sediment control”); Replicates – (a, b, c); Day 0, 3, 6, 9, 16, 21, 23, 29, 36, 42 – salinity of water sample per condition/replicate (‰); Oxygen% [Oxygen (% saturation) in the water sample of aquaria]: Conditions – (Condition 1: “Snow + Oil”, Condition 2: “Snow”, Condition 3: “Oil”, Condition 4: “Clay control”, Condition 5: “Sediment control”); Replicates – (a, b, c); Day 0, 1, 3, 6, 9, 16, 21, 23, 29, 36, 42 – Oxygen saturation of water sample per condition/replicate (%); Oxygen mgl [Oxygen (mg/L) in the water sample of aquaria]: Conditions – (Condition 1: “Snow + Oil”, Condition 2: “Snow”, Condition 3: “Oil”, Condition 4: “Clay control”, Condition 5: “Sediment control”); Replicates – (a, b, c); Day 0, 1, 3, 6, 9, 16, 21, 23, 29, 36, 42 – Oxygen in water sample per condition/replicate (mg/L); pH [pH (-) in the water sample of aquaria]: Conditions – (Condition 1: “Snow + Oil”, Condition 2: “Snow”, Condition 3: “Oil”, Condition 4: “Clay control”, Condition 5: “Sediment control”); Replicates – (a, b, c); Day 0, 1, 3, 6, 9, 16, 21, 23, 29, 36, 42 – pH in water sample per condition/replicate (-); The following is information describing the treatments used in the analyses: Sediment: natural uncontaminated sediment (≈ 3,2 L per each aquaria). Uncontaminated sediments were collected from the top 10 cm of an intertidal mudflat in the Dutch Wadden Sea (N 52° 56.112 E 004° 59.976) at low tide. Collected sediments were transported to the laboratory and sieved over a 1 mm sieve to remove larger organisms and particles. Oil: Surrogate Macondo oil, kindly provided by BP. 0.63 g of oil per aquaria. Clay: kaolin clay (hydrated aluminum silicate, CAS 1332-58-7, Sigma Aldrich). 3.15 g kaolin clay per aquaria Snow: Artificial marine snow was prepared in our laboratory by adding 22.5 g of commercially available alginate (alginic acid sodium salt, CAS 9005-38-3; 7.5 g for each aquarium replicate), to 1.1 L of filtered natural seawater while stirring. Then, 9.45 g of kaolin clay (hydrated aluminum silicate, CAS 1332-58-7, Sigma Aldrich; 3.15 g for each aquarium replicate) and 19 g of fresh weight of phytoplankton biomass (Chlorella pasta, Ingepro BV, Borculo, The Netherlands; 6.3 g for each aquarium replicate) were added to the solution. Separately, 188 g of CaCl2 (CAS 10043-52-4, Fluka Analytical) was dissolved in 13 L of demi-water and this solution was added to the alginate solution while stirring. The calcium causes coagulation of the alginate and precipitation of 600 mL marine-snow-like flocks. 200 mL of this artificial marine snow was used for each aquaria. Snow+Oil: consist of 200 mL snow, 0.63 g oil and 3.15 g kaolin clay.|||||