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Chemical analysis of sediment and fish species near the Hercules 265 blowout, Gulf of Mexico, 2013

Center for Integrated Modeling and Analysis of Gulf Ecosystems (C-IMAGE)

DOI:
10.7266/N7MP517B
 
UDI:
R1.x135.119:0011
Last Update:
Mar 18 2016 13:36 UTC
 
Dataset Author(s):
Romero, Isabel
Point of Contact:
Romero, Isabel C.
University of South Florida / College of Marine Science
140 7th Ave South
St. Petersburg, Florida  33701
USA
isabelromero@mail.usf.edu
Funding Source:
RFP-I
Data Collection Period:
2013-08-25 to 2013-08-25

Identified Submitted Metadata Available
3 3 3 3

Abstract:

On July 23, 2013 a marine gas rig (Hercules 265) ignited in the northern Gulf of Mexico. The rig burned out of control for several days before being extinguished. We conducted a rapid-response sampling campaign near Hercules 265 after the fire to ascertain if sediments and fishes were polluted above earlier baseline levels. Sediment cores were collected to the SE of the rig at a distance of ~0.2 km, 8 km and 18 km using a multicorer, and demersal fishes were collected from ~0.2 to 8 km SE of the rig using a longline (508 hooks). Recently deposited sediments document that only high molecular weight (HMW) polycyclic aromatic hydrocarbon (PAH) concentrations decreased with increasing distance from the rig suggesting higher pyrogenic inputs associated with the blowout. A similar trend was observed in the foraminifera Haynesina germanica, an indicator species of pollution. In red snapper bile, only HMW PAH metabolites increased in 2013 nearly double those from 2012. Both surface sediments and fish bile analyses suggest that, in the aftermath of the blowout, increased concentration of pyrogenically-derived hydrocarbons were transported and deposited in the environment. This study further emphasizes the need for an ocean observing system and coordinated rapid-response efforts from an array of scientific disciplines to effectively assess environmental impacts resulting from accidental releases of contaminants.

Purpose:

The dataset was developed to determine if the sediment and fish near the Hercules 265 marine gas rig experienced an increase in pollution after the rig suffered a blowout.

Theme Keywords:

Hercules 265 rig, polycyclic aromatic hydrocarbons, bile metabolites

File Format:

xlsx

Dataset Downloads:

7

Chemical analysis of sediment and fish species near the Hercules 265 blowout, Gulf of Mexico, 2013



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R1.x135.119-0011-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Richard McKenzie
      Organisation name: 
          University of South Florida
      Position name: 
          GIS Analyst
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  8139742852
              Facsimile: 
                  8139742852
          Address: 
            Address: 
              Delivery point: 
                  4202 E. Fowler Ave.
                  LIB122
              City: 
                  Tampa
              Administrative area: 
                  Florida
              Postal code: 
                  33620
              Country: 
                  USA
              Electronic mail address: 
                  rwmcken2@usf.edu
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2016-12-15T21:30:03+00:00
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
  Dataset URI: 
      https://data.gulfresearchinitiative.org/metadata/R1.x135.119:0011
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Identification info: Data identification: Citation: Citation: Title: Chemical analysis of sediment and fish species near the Hercules 265 blowout, Gulf of Mexico, 2013 Alternate title: Hercules 265 blowout Date: Date: Date: 2014-11-30 Date type: Date type code: creation Abstract: On July 23, 2013 a marine gas rig (Hercules 265) ignited in the northern Gulf of Mexico. The rig burned out of control for several days before being extinguished. We conducted a rapid-response sampling campaign near Hercules 265 after the fire to ascertain if sediments and fishes were polluted above earlier baseline levels. Sediment cores were collected to the SE of the rig at a distance of ~0.2 km, 8 km and 18 km using a multicorer, and demersal fishes were collected from ~0.2 to 8 km SE of the rig using a longline (508 hooks). Recently deposited sediments document that only high molecular weight (HMW) polycyclic aromatic hydrocarbon (PAH) concentrations decreased with increasing distance from the rig suggesting higher pyrogenic inputs associated with the blowout. A similar trend was observed in the foraminifera Haynesina germanica, an indicator species of pollution. In red snapper bile, only HMW PAH metabolites increased in 2013 nearly double those from 2012. Both surface sediments and fish bile analyses suggest that, in the aftermath of the blowout, increased concentration of pyrogenically-derived hydrocarbons were transported and deposited in the environment. This study further emphasizes the need for an ocean observing system and coordinated rapid-response efforts from an array of scientific disciplines to effectively assess environmental impacts resulting from accidental releases of contaminants. Purpose: The dataset was developed to determine if the sediment and fish near the Hercules 265 marine gas rig experienced an increase in pollution after the rig suffered a blowout. Status: Progress code: completed Point of contact: Responsible party: Individual name: Isabel C. Romero Organisation name: University of South Florida, College of Marine Science Position name: Research Associate Contact info: Contact: Phone: Telephone: Voice: 1 727-553-3358 Facsimile: Address: Address: Delivery point: 140 7th Ave S City: St. Petersburg Administrative area: Florida Postal code: 33701 Country: USA Electronic mail address: isabelromero@mail.usf.edu Role: Role code: principalInvestigator Descriptive keywords: Keywords: Keyword: Hercules 265 rig Keyword: polycyclic aromatic hydrocarbons Keyword: bile metabolites Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: Northern Gulf of Mexico Type: Keyword type code: place Language: eng;USA Topic category: Topic category code: biota Topic category: Topic category code: environment Topic category: Topic category code: oceans Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -90.52 East bound longitude: -90.33 South bound latitude: 28.22 North bound latitude: 28.37 Geographic element: BoundingPolygon: Polygon: gml:MultiPoint: gml:pointMember: Point: gml:pos: 28.37 -90.52 gml:pointMember: Point: gml:pos: 28.32 -90.39 gml:pointMember: Point: gml:pos: 28.22 -90.33 Temporal element: Temporal extent: Extent: Time period: Description: ground condition Begin date: 2013-08-25 End date: 2013-08-25 Supplemental Information: Foraminifera abundance (%), sediment PAHs (ng/g), sediment biomarkers (ng/g), Fish Fork length (cm), Fish NPH (ug/g), Fish Phen (ug/g), Fish BAP (ng/g). The following is a list of PAHs used in the analysis: Naphthalene (N) and alkylated homologues (NC1-C4); Acenaphthylene (ACL); Acenaphthene (ACE); Fluorene (F); Dibenzothiophene (D) and their alkylated homologues (DC1-C2); Phenanthrene (P), Anthracene (AN) and their alkylated homologues (P/ANC1-C4); Fluoranthene (FL), Pyrene (PY) and their alkylated homologues (FL/PYC1-C4); Benz[a]anthracene (BAA), Chrysene (C) and their alkylated homologues (BAA/CC1-C4); Benzo[b]fluoranthene (BBF); Benzo[k]fluoranthene (BKF); Benzo[a]pyrene (BAP), Dibenz[a,h]anthracene (DA) and alkylated homologues (BP/PERC1-C4); Indeno[1,2,3-cd]pyrene (ID); Benzo[ghi]perylene (BGP).
          
Spatial Information: The following are the coordinates for the 3 sample sites referenced in the dataset: Site 1: 28.37° N, 90.52° W; Site 2: 28.32° N, 90.39° W; Site 3: 28.22° N, 90.33° W;
          
The fish used in the PAH analysis were collected by means of long line deployment between Sampling Sites 1 (28.37° N, 90.52° W) and 2 (28.32° N, 90.39° W).|||||
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) Contact info: Contact: Phone: Telephone: Voice: +1-361-825-3604 Facsimile: +1-361-825-2050 Address: Address: Delivery point: 6300 Ocean Drive Unit 5869 City: Corpus Christi Administrative area: Texas Postal code: 78412-5869 Country: USA Electronic mail address: griidc@gomri.org Online Resource: Online Resource: Linkage: URL: http://data.gulfresearchinitiative.org Protocol: Role: Role code: distributor Distributor format: Format: Name: xlsx Version: inapplicable File decompression technique: Distributor transfer options: Digital transfer options: Transfer size: 0.064 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R1.x135.119:0011 Protocol:
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Metadata maintenance: Maintenance information: Maintenance and update frequency: Maintenance note: This ISO metadata record was created using the 'Check and Save to File' (with form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2015-09-14T17:56:19+00:00 Maintenance note: This ISO metadata record was created using the 'Check and Save to File' (with form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2015-09-15T15:27:26+00:00 Maintenance note: This ISO metadata record was created using the 'Check and Save to File' (with form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2015-11-12T21:23:44+00:00
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