Dataset Submitted

Temporal assessment of Polycyclic aromatic hydrocarbons in deep-sea shrimp species in the Gulf of Mexico

Authors: Isabel C. Romero
Identified On: Feb 20 2024 15:25 UTC
DOI: https://doi.org/10.7266/y7tc2ar6
UDI: NO.x959.000:0019
Project Information

Funded By:
National Oceanic and Atmospheric Administration

Research Group:
DEEPEND/RESTORE Trends and drivers of faunal abundance of the offshore Gulf of Mexico

Point of Contact

Isabel C. Romero
University of South Florida / College of Marine Science
isabelromero@usf.edu

Data Collection Period
2022-07-30
to
2023-05-08
Theme keywords

Deep-sea shrimp, Polycyclic aromatic hydrocarbons

Abstract:

Understanding the potential impact to the deep-pelagic habitat after the Deepwater Horizon spill is important due to their large abundance and role in the marine food web (as prey for shallow-living fish and marine mammal species). This study includes polycyclic aromatic hydrocarbons (PAHs) in deep-water shrimps to asses exposure to oil residues in the Gulf of Mexico (GoM). Samples were collected in 2022 and 2023.

Suggested Citation:

Isabel C. Romero. Temporal assessment of Polycyclic aromatic hydrocarbons in deep-sea shrimp species in the Gulf of Mexico. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/y7tc2ar6

Purpose:

To understand temporal trends.

Data Parameters and Units:

ng/g

Methods:

Samples were analyzed on an Agilent 7890B gas chromatograph 7010 triple quadrupole mass spectrometer. Injections (1 µl) into the multi-mode inlet in split-less mode were conducted. Inlet temperature held at 325°C. A 30m fused silica column (Rxi 5Sil MS with Integra-Guard, 30m x 0.25mm x 0.25μm, Cat# 13623-124, Restek, Bellafonte, PA, USA) was used with the following oven parameters: initial temperature 60°C, hold time 2 min; ramp 1 rate 8°C/min to 200°C, hold time 0 min; ramp 2 rate 4°C/min to 300°C, hold time 0 min, ramp 3 rate 10°C/min to 350°C, hold time 5 min. Helium was used for carrier flow at a rate of 1 ml/min and Nitrogen gas was used for collision cell gas. The transfer line between the GC oven and the MS was held at 320°C, the ion source was held at 270°C, and both quadrupoles were held at 150°C. For accuracy and precision of sample sets, the instrument was tuned daily to PFTBA (perfluorotributylamine), and samples were checked with certified standards. Sample batches were re-analyzed when replicated standards exceeded ±20% of relative standard deviation (RSD), and/or when recoveries were low.