Abstract:

This dataset has CTD and positional data from sediment grabs taken on the NOAA ship Pisces (2013) and Gordon Gunter (2014). Two shoreline collections from Louisiana and Alabama are included in the 2014 data. All sediment grabs on the NOAA cruises were made with a multicorer, unless a Shipek (R) grab is indicated. Samples from the multicorer tubes or the Shipek grab were subsampled to a depth of 5 cm. The two shoreline collections were taken to a depth of 25 cm (Slidell Louisiana, shovel collection) or to a depth of 5 cm (Dauphin Island, hand core). Sediment samples were sent to the Louisiana State University Ag center, where trace metals determination was made using EPA method 200.7.

Suggested Citation:

Stephen Landers. 2015. 2013-2014 NOAA CTD data and sediment trace metals. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N74J0C32

Publications:

Beaton, K. R., Sharma, J., Jones, C. M., Miller, J. M., Stewart, P. M., & Landers, S. C. (2017). Nematode assemblages in the Gulf of Mexico continental shelf collected during a two-year survey. Journal of Experimental Marine Biology and Ecology. doi:10.1016/j.jembe.2017.08.006

Landers, S. C., Sørensen, M. V., Beaton, K. R., Jones, C. M., Miller, J. M., & Stewart, P. M. (2017). Kinorhynch assemblages in the Gulf of Mexico continental shelf collected during a two-year survey. Journal of Experimental Marine Biology and Ecology. doi:10.1016/j.jembe.2017.05.013

Sørensen, M. V., & Landers, S. C. (2017). New species of Semnoderidae (Kinorhyncha: Cyclorhagida: Kentrorhagata) from the Gulf of Mexico. Marine Biodiversity. doi:10.1007/s12526-017-0728-x

SØRENSEN, M. V., & LANDERS, S. C. (2017). Description of a new kinorhynch species, Paracentrophyes sanchezae n. sp. (Kinorhyncha: Allomalorhagida) from the Gulf of Mexico, with differential notes on one additional, yet undescribed species of the genus. Zootaxa, 4242(1), 61. doi:10.11646/zootaxa.4242.1.3

Purpose:

To determine trace metals concentrations along the continental shelf in the Gulf of Mexico.

Data Parameters and Units:

Trace metals concentrations are in mg/kg. The final values for each sediment site are in the column entitled "blank-corrected sample conc" The sample field IDs are listed in column two, and correspond to the station number on the NOAA CTD data page. For example- Sample field ID 134-5 on the trace metals data page corresponds to station 134 on the NOAA CTD data page. 134 Shipek on the metals page corresponds to station 134 Shipek on the NOAA CTD data page. SITE DATA TABS (STATION METADATA): Vessel ([76, 63] = Pisces, Gordon Gunter, respectively); Cruise [1306, 1406]; Station [enum]; Alternate Station # [alphanumeric]; Sampling device [MC, Shipek, shovel, hand grab]; Start time [MM/DD/YY HH:MM]; End time [MM/DD/YY HH:MM]; Decimal end lat [decimal degrees]; Decimal end lon [decimal degrees]; Depth [m]; Sample depth [m]; Temperature [degrees C], Salinity [ppm], Dissolved oxygen ["OXY_MG" appears to be mg/L]; may also include Station lat [DDMM.MM], Station lon [DDMM.MM], start lat [decimal degrees]; start lon [decimal degrees]. METALS tabs: besides individual species ([mg/kg], measured and corrected); dilution factor [decimal]; minimum detection limit, MDL [mg/kg]; sample descriptions (batch number, unique ID, injection date and time, sample lab ID, sample field ID).

Methods:

Trace metals concentrations in the sediment samples were determined at Louisiana State University's Agricultural Center using Inductively Coupled Plasma (ICP) and following EPA method 200.7 (USEPA, 2001).

Instruments:

ICP-MS

Individual Files: