29493
Fishery-Dependent Turtle Excluder Device Catch Assessment Data: Skimmer Trawl
Data Set
Published / External
28650
Turtle Excluder Device Data
Project
Completed
Skimmer trawls are utilized throughout the southeastern United States to target penaeid shrimp (Penaeidae). Because the codends of these trawls can be readily retrieved, skimmer trawls are allowed to utilize restricted tow times (55 and 75 minute, seasonally) in lieu of Turtle Excluder Device (TED) requirements as a sea turtle bycatch mitigation measure. However, observations aboard commercial vessels indicate that tow times are often exceeded. In 2008, the Southeast Fisheries Science Center Mississippi Laboratories began investigating the feasibility of TED use in skimmer trawls. Dependent testing was conducted aboard twin-rigged contracted commercial vessels during the 2008 and 2009 fishing seasons in the coastal waters of Alabama and Mississippi. The experimental design consisted of paired comparisons designed to examine shrimp catch retention, bycatch reduction, and TED usability. A TED was installed in one net (treatment), while the other was left naked with no TED installed (control). The TED was switched between port and starboard nets daily to remove potential vessel side bias. Data consists of tow level data for each net (treatment vs control) for five major catch categories; shrimp, finfish, non-shrimp crustaceans, other invertebrates, and debris. Start and end locations, times, and depths were recorded for each tow along with vessel identifier, date, tow speed, and location of the TED (port vs starboard). Data were used to determine TED efficiency with regard to shrimp catch and bycatch reduction. All dependent skimmer trawl TED testing data after 2009 were collected by the Southeast Fisheries Observer Program (SEFOP).
To investigate the feasibility of Turtle Excluder Device use in skimmer trawls.
Theme
Fishery Dependent
Theme
GOM
Theme
Gulf of Mexico
Theme
Mississippi Laboratories
Theme
Skimmer Trawl
Theme
TED
Theme
Turtle Excluder Device
Mississippi Laboratory
Pascagoula
MS
Data Set
CSV Files
As Needed
Table (digital)
Not applicable
Commercial skimmer trawl vessels
Skimmer Trawl
Data Steward
2008
Person
Gearhart, Jeff
jeff.gearhart@noaa.gov
3209 Frederic St.
Pascagoula
MS
39568
228-549-1764
228-769-8699
Distributor
2013
Organization
Southeast Fisheries Science Center
SEFSC
75 Virginia Beach Drive
Miami
FL
33149
USA
(305)361-5761
https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center
About SEFSC
Online Resource
8:00 a.m. - 4:30 p.m. EST
Metadata Contact
2008
Person
Gearhart, Jeff
jeff.gearhart@noaa.gov
3209 Frederic St.
Pascagoula
MS
39568
228-549-1764
228-769-8699
Point of Contact
2013
2021
Person
Weber, Charles J
3209 Frederic Street
Pascagoula
MS
39567-4112
228-549-1684
228-769-9200
Retired IT United Head Pascagoula
-89
-88.13333333333
30.36666666667
30.25
Discrete
2008
Sensitive
Some information contained within the data are confidential and protected under FOIA Exemption 4: Trade Secrets, Commercial or Financial Information, see 5 U.S.C. 552(b)(4). These data are released after aggregation, to protect confidentiality.
Information contained in the data are protected under FOIA exemption which apply to Government information in accordance with 5 U.S.C. 552(b)(4): Trade Secrets, Commercial or Financial Information.
NOAA NMFS does not approve, recommend, or endorse any proprietary product or proprietary material mentioned in this publication. No reference shall be made to NMFS, or to this publication furnished by NMFS, in any advertising or sales promotion which would indicate or imply that NMFS approves, recommends, or endorses any proprietary product or proprietary material mentioned herein or which has as its purpose any intent to cause directly or indirectly the advertised product to be used or purchased because of this NMFS publication. NMFS is not responsible for any uses of these data sets beyond those for which they were intended, and NMFS makes no claims regarding the accuracy of any data provided by agencies or individuals outside NMFS. Acknowledgement of NOAA NMFS would be appreciated in products derived or publications generated from this data.
Datasheets were checked in the field after sampling and data were checked after entry into the database. The principal investigators review the data for content to ensure the relevance/accuracy of data collected.
Yes
0
Yes
Yes
Yes
30 Days
NCEI-MS
365 Days
Data resides on Networked Attached Storage (NAS) environment. Security patches/updates are immediately applied to the host environment. Data is stripped/mirrored using RAID 50 technology to protect data from disk failure. Nightly backups are preformed and files are written to magnetic tape and stored in an onsite / offsite location.
Trawl catch is sorted to shrimp, finfish, non-shrimp crustaceans, other invertebrates, and debris. Shrimp and selected finfish are identified to species. Catch and length frequency data are recorded onto datasheets. Datasheets were checked in the field after sampling and data were checked after data entry. The principal investigators review the data for content to ensure the relevance/accuracy of data collected.
gov.noaa.nmfs.inport:29493
Charles Weber
2015-12-04T16:53:59
SysAdmin InPortAdmin
2022-08-09T17:11:10
2021-10-27
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
2021-10-27
1 Year
2022-10-27