34602
MMSREEFish_Collections
Entity
Published / External
8927
MMSReefish Study Databases from 1993-1999 field collections (SEC7-95-11 Fish Mortalities From Explosive Removal of Petroleum Platforms)
Data Set
Impacts of the Explosive Removal of Offshore Oil and Gas Structureson Fish Stocks in the Gulf of MexicoOffshore oil and gas platforms in the Gulf of Mexico (GOM) function as artificial reefs attracting a wide variety of marine life. Explosives are frequently used to remove these structures. These data describe the first comprehensive study to quantitatively assess impacts of the explosive removal of offshore oil and gas structures on fish. Between July 1993 and May 1999 surface and underwater sampling was conducted at nine explosive oil and gas platform removals in the GOM to estimate fish mortality. Water depth ranged from 14-36 m. After explosives were detonated, field personnel operating from inflatable boats used dip nets to collect all dead fish that floated to the surface while divers manually sampled dead fish that sank to the sea floor. The most severely impacted fish species at explosive structure removals in order of abundance were Atlantic spadefish (Chaetodipterus faber), blue runner (Caranx crysos), red snapper (Lutjanus campechanus), and sheepshead (Archosargus probatocephalus). These four species accounted for 86 of estimated mortality. Numbers of all other impacted species were far below those of the top four. Mortality estimates for red snapper were incorporated into stock assessment analyses. The impact of including explosive platform removal data was that abundance estimates were almost indistinguishable from the original assessment. The differences were well within the statistical estimation variances for the original assessment.
Quantify the impacts of explosives used in the removal of offshore petroleum production platforms on fishes residing near these artificial reefs. Provide information for FMPs and offshore technology groups.
National Centers for Environmental Information - Silver Spring, Maryland
Silver Spring
MD
NCEI Archive
Spreadsheet
Original_Data_1: MMSREEFish_Collections includes data for fish collections made after explosives were detonated at the platforms.
1
AREA
CHARACTER
18
No
No
Active
Gulf of Mexico lease area used by US Dept. of Interior/BOEM/BSEE.
2
BLOCK
NUMERIC
3
No
No
Active
Gulf of Mexico offshore structure identification designation used by US Dept. of Interior/BOEM/BSEE.
3
ID
CHARACTER
4
No
No
Active
Platform identification name.
4
YEAR
NUMERIC
4
No
No
Active
Year of detonation and sample collection.
5
MONTH
NUMERIC
2
No
No
Active
Month of detonation and sample collection.
6
DAY
NUMERIC
2
No
No
Active
Day of detonation and sample collection.
7
TIME
NUMERIC
4
No
No
Active
Time of explosives detonation using 24 hr clock in Central Time as recorded from a watch (regardless of daylight savings time or standard time).
8
DEPTH_METERS
NUMERIC
2
No
No
Active
Water depth of platform in meters.
9
LATITUDE
NUMERIC
5
No
No
Active
Latitude of platform in degrees.
10
LONGITUDE
NUMERIC
6
No
No
Active
Longitude of platform in degrees.
11
SPECIES
CHARACTER
21
No
No
Active
Common name of fish species collected. NA = not applicable (no fish collected in sample).
12
TOTAL_LENGTH_CM
CHARACTER
5
No
No
Active
Total length of fish in cm. NA=not applicable.
13
TAG
CHARACTER
2
No
No
Active
Was the fish tagged? YES or NO, NA=not applicable.
14
WEIGHT_KG
CHARACTER
5
No
No
Active
Weight of fish in kg. NA=not applicable.
15
COUNT
NUMERIC
1
No
No
Active
If COUNT=1 then this record represents one fish. If COUNT=0 then no fish were collected in this sample.
16
DISTANCE_METERS
CHARACTER
7
No
No
Active
Distance in meters from the platform at which the sample was collected. If distance=0 then sample was collected in footprint area under the platform.
17
COMPASS_DIRECTION
CHARACTER
2
No
No
Active
Direction from platform where sample was collected. N=north, NE=northeast, etc.
18
SAMPLING_GEAR
CHARACTER
5
No
No
Active
Sampling gear in which fish were collected. See Dataset_Metadata tab for futher information.
RAD=Refers to a circular survey of radius 3.35 m conducted on the sea floor by divers.
TRAN=Refers to a diver survey of the sea floor conducted along a transect line attached to the perimeter of the platform at the sea floor.
UPLN=Refers to samples collected by divers from the sea floor in the footprint under the platform. At a given platform (BLOCK) all dead fish collected under the platform were combined into a single sample.
OWLN=Refers to a sampling net placed on the seafloor prior to detonation of explosives and retrieved from the surface after the detonation.
SURF1=Refers to the collection dead fish floating on the sea surface after the first detonation of explosives at the platform.
SURF2=Refers to the collection dead fish floating on the sea surface after the second detonation (if one occurred) of explosives at the platform.
SURF3=Refers to the collection dead fish floating on the sea surface after the third detonation (if one occurred) of explosives at the platform.
19
OWLNNET
CHARACTER
2
No
No
Active
Unique number associated with each individual OWLN sample. See Dataset_Metadata tab for futher information.
20
OWLN_AREA_SQM
CHARACTER
4
No
No
Active
Area in square meters for the OWLNNET associated with this record. See Dataset_Metadata tab for futher information.
21
TRAN_WIDTH_METERS
CHARACTER
2
No
No
Active
Estimated width in meters for the TRANS sample associated with this record. See Dataset_Metadata tab for futher information.
22
RAD_AREA_SQM
CHARACTER
5
No
No
Active
Area in square meters for the RAD sample associated with this record. See Dataset_Metadata tab for futher information.
23
UPLN_COMBINED_AREA_SQM
CHARACTER
6
No
No
Active
Cumulative total area in square meters for all the UPLN samples collected under the platform at this BLOCK. See Dataset_Metadata tab for futher information.
Data Steward
1993
Person
Gitschlag, Gregg
Gregg.Gitschlag@noaa.gov
4700 Avenue U
Galveston
TX
77551
409-766-3517
Contact by email preferred.
Distributor
2006
Organization
National Centers for Environmental Information - Silver Spring, Maryland
NCEI-MD
NOAA/NESDIS E/OC SSMC3, 4th Floor, 1351 East-West Highway
Silver Spring
MD
20910-3282
(301) 713-3277
Metadata Contact
1993
Person
Gitschlag, Gregg
Gregg.Gitschlag@noaa.gov
4700 Avenue U
Galveston
TX
77551
409-766-3517
Contact by email preferred.
Point of Contact
2006
Person
Baumer, Tim J
tim.baumer@noaa.gov
4700 Avenue U
Galveston
TX
77551
409-766-3784
2016
https://www.ncei.noaa.gov/archive/accession/0156750/1.1/data/0-data/InPort_ID_8927/InPort_ID_8927/CSV/MMSREEFish_Collections/MMSREEFish_Collections.csv
2006
Organization
National Centers for Environmental Information - Silver Spring, Maryland
MMSREEFish_Collections.csv
tabular digital data (Microsoft Excel, CSV, or other tabular format)
CSV - Comma Separated Values (Text)
gov.noaa.nmfs.inport:34602
David Huddleston
2016-09-01T13:42:42
SysAdmin InPortAdmin
2023-10-17T16:12:09
2021-05-07
Southeast Fisheries Science Center
SEFSC
75 Virginia Beach Drive
Miami
FL
33149
USA
(305)361-5761
www.sefsc.noaa.gov
8:00 a.m. - 4:30 p.m. EST
1001
Public
No
2021-05-07
1 Year
2022-05-07