Abstract:

This dataset reports species caught using longline and trap sets during the R/V Apalachee cruise AP-1410 from June 30 to July 08, 2014. The objectives of this project were 1) to use large chevron traps and demersal longlines to describe and examine differences in the species assemblages and relative abundances of demersal fishes associated with the eastern and western walls of DeSoto Canyon and the adjacent continental slope (75-2000 m deep), 2) to collect liver and bile samples from dominant species to examine spatial and depth-mediated differences in exposure to polycyclic aromatic hydrocarbons (PAHs), 3) to collect muscle tissue from all species for stable isotope analyses including using radiocarbon ratios to examine attenuation of long-term exposure to hydrocarbons, and 4) to collect specimens and samples (including curation of new species) to aid in resolving phylogenetic uncertainties and understanding life history traits in collected taxa. This dataset contains the metadata and sample data associated with the above objectives.

Suggested Citation:

Grubbs, R. Dean. 2015. Longline trap data collected during R/V Apalachee cruise AP-1410 in the DeSoto Canyon from 2014-06-30 to 2014-07-08.. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7H70CSB

Purpose:

To evaluate the biological diversity and trophic interactions among organisms ranging from primary producers to apex predators and from the deep-sea benthos to the coast. These data contribute to a food web model used to determine risks to ecosystem structure and function and regional economies following from extreme anthropogenic events (e.g., discharged and background hydrocarbon) and adaptive management strategies.

Data Parameters and Units:

Vessel (R/V Apalachee) Event ID (AP-1410) Event Date (DD-Month-YY) Set (DC-yearYY-SetNumber) Deep-C Station (NA, NB, DA, DB, DC, DD, DE, DF, DH, SH-WA, WDA, DDC; 1, 2, 3, 5, 6, 7) Latitude_start (decimal degrees) Longitude_start (decimal degrees) Latitude_finish (decimal degrees) Longitude_finish (decimal degrees) TDR # Serial number for Lotek temperature/depth recorder deployed on line (B, C, or D) Temperature (degrees Celsius) Depth min (meters) Depth max (meters) Actual Depth (meters) Time in (mmss) Time set (mmss) Time haul (mmss) Time out (mmss) Longline/Trap/Both/Random Gear Effort longline (hook sizes and count) Gear Effort (trap) Bait (Euthynnus, Carcharhinus, Brevoortia) SeaState (feet) Wind speed (knots) Set Comments Sediment sample (true, false) ID_Data_sample (DC-yearYY-sampleID) ID_Species (scientific name) [Anemone, Bathynomus giganteus, Caranx crysos, Carcharhinus plumbeus, Carcharhinus signatus, Centrophorus cf granulosus, Centrophorus niaukang, Chaceon quinquedens, Cheilopogon melanurus, Coryphaenoides mexicanus, Coryphaenoides rudis, Dasyatis centroura, Deania profundorum, Echeneis naucrates, Eptatretus minor, Eptatretus springeri, Galeocerdo cuvier, Helicolenus dactylopterus, Heterocarpus sp., Hexanchus griseus, Laemonema goodebeanorum, Lopholatilus chamaeleonticeps, Laemonema goodebeanorum, Mustelus canis, Myxine mcmillanae, Mustelus canis, Nephropsis aculeata, Ophichthus rex, Paraliparis calidus, Parapenaeus politus, Paraliparis sp., Pontinus longispinis, Raymanninus schmitti, Seriola dumerili, Sphyrna lewini, Squalus cubensis, Squalus mitsukurii, Stylocidaris affinis, Synaphobranchus oregoni, Thunnus atlanticus, unidentified mussel, Urophycis cirrata, Urophycis floridana] Sex (male, female) BW Body Weight (kg) Liver Weight (g) SL Standard Length for teleosts and pre-caudal length for sharks (cm) DW Disk Width for batoid (cm) CW Carapace Width for crustaceans (cm) CL Carapace Length for crustaceans (cm) FL Fork Length for telosts/sharks and disk length for batoid (cm) TL Total Length for teleosts/batoids/crustaceans and stretched total length for sharks (cm) Mature (Yes, Now) Maturity State (Mature, Juvenile, Neoteny, Pup, YOY Young of Year) Tag number (dart or satellite tag number if released) Hook/Trap Size (hook size, small/medium/large trap, rod and reel, dip net) Condition swimming behavior if released (E=excellent, G=good, F=fair, P=poor, DOA=dead) SI Stable Isotope Analysis biopsy (number of samples) GN Genetics (number of samples) RP Reproductive Tract (Yes if collected) WM White Muscle for purposes other than SI e.g. mercury analyses (number of samples) BD Blood (number of vials) BI Bile (Yes if collected) ST Stomach (Yes if collected) AG Aging Structure (S=spines, R=rays, O=otoliths, V=vertebrae) Other 1, Other 2 additional tissues collected (FSU liver, UNF liver, jaw, parasites) SP Whole Specimen retained (Yes, No) VOU Voucher Sample for museum curation (Yes if collected) Notes

Individual Files: