Longline Trap Survey of Demersal Fish in DeSoto Canyon
Updated 4mo ago
14files
Available on 2 platforms
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Description
July 18 to August 4, 2013 survey aboard the R/V Apalachee (cruise AP-1307) collected data on demersal fish species in the DeSoto Canyon, Gulf of Mexico. The dataset includes biological measurements (species name, sex, weight, length, maturity) and fishing operation details (bait, gear, effort, sea state) from longline and trap sets at depths from 75 to 2000 meters. It was produced by NOAA NCEI as part of research into deep-sea to coast connectivity following the Deepwater Horizon oil spill.
Use Cases
Comparing species assemblages and relative abundances between the eastern and western walls of DeSoto Canyon using species name and catch location data.
Analyzing fish population structure by sex and maturity state across different depth ranges (75-2000 m).
Studying the relationship between environmental conditions (sea state, pressure, temperature) and fishing effort or catch composition.
Supporting phylogenetic studies by identifying specimens from which tissue samples were collected for further analysis.
Strengths
Provides detailed biological data including weight, length, sex, and maturity state for caught species.
Covers a specific, well-documented temporal range (July 18 to August 4, 2013) and geographic area (DeSoto Canyon).
Includes contextual environmental data from fishing operations such as bait used, gear type, and sea state.
Limitations
Key quantitative details like total row count, file size, and complete column list are unavailable from all sources.
Conflicting last updated dates exist between platforms (2013-08-04 vs. 2026-03-05), casting uncertainty on data currency.
The results of any ancillary analyses performed on collected samples are not included in this dataset.
Provenance
Source
NOAA_NCEI
Collection Method
Data collected via demersal longlines and large chevron traps deployed from the R/V Apalachee.
Time Range
2013-07-18 to 2013-08-04
Freshness
2026-03-05 23:39:12.948327
Geography
DeSoto Canyon, Gulf of Mexico, specifically the eastern and western canyon walls and adjacent continental slope.
License information is not provided. The dataset is associated with the Gulf of Mexico Research Initiative (GoMRI) and the Deepwater Horizon oil spill event.