This dataset presents results from surface-tethered drifting sediment traps deployed in the open ocean Gulf of Mexico during cruises of the NOAA Ship Nancy Foster, May 10-30, 2017 (NF17), and May 5-19, 2018 (NF18). Sediment trap results include particulate organic carbon flux, particulate nitrogen flux, carbon isotope ratio of sinking organic matter (13C/12C), nitrogen isotopes of sinking material (15N/14N), chlorophyll a flux, and phaeopigment flux.

This dataset presents results from surface-tethered drifting sediment traps, zooplankton net tows, dissolved inorganic nutrient concentration analyses made on water column samples, and flow cytometry samples collected in the euphotic zone, from the open ocean Gulf of Mexico during cruises of the NOAA Ship Nancy Foster, May 10-30, 2017 (NF17), and May 5-19, 2018 (NF18). Sediment trap results include particulate organic carbon flux, particulate nitrogen flux, carbon isotope ratio of sinking organic matter (13C/12C), nitrogen isotopes of sinking material (15N/14N), chlorophyll a flux, and phaeopigment flux. Mesozooplankton results include separate files for: 1) wet weight, dry weight, carbon and nitrogen biomass estimates for total zooplankton and five size fractions; 2) carbon and nitrogen percent dry weight, stable carbon (13C/12C) and nitrogen (15N/14N) isotope ratios of five size fractions; and 3) size-fractionated chlorophyll and phaeopigment gut pigment contents, pigment-based estimates of mesozooplankton grazing on phytoplankton in the euphotic zone (grazing m-2 h-1) and biomass-specific rates of grazing relative to zooplankton dry weight and carbon. Dissolved inorganic nutrient concentration measurements include nitrate+nitrite (NO3-+NO2-), ammonium (NH4+), and soluble reactive phosphorus (PO43-). Flow cytometry results include abundances of phytoplankton taxa (Prochlorococcus, Synechococcus, Photosynthetic Eukaryotes) and non-pigmented bacteria (HBACT).

This dataset presents results from zooplankton net tows taken in the open ocean Gulf of Mexico during cruises of the NOAA Ship Nancy Foster, May 10-30, 2017 (NF17), and May 5-19, 2018 (NF18). Mesozooplankton results include separate files for: 1) wet weight, dry weight, carbon and nitrogen biomass estimates for total zooplankton and five size fractions; 2) carbon and nitrogen percent dry weight, stable carbon (13C/12C) and nitrogen (15N/14N) isotope ratios of five size fractions; and 3) size-fractioned chlorophyll and phaeopigment gut pigment contents, pigment-based estimates of mesozooplankton grazing on phytoplankton in the euphotic zone (grazing m-2 h-1) and biomass-specific rates of grazing relative to zooplankton dry weight and carbon.

This project will investigate the link between nutrients, food availability, and the survival of Atlantic bluefin tuna larvae which can be used to improve stock assessments for this commercially and recreationally important species.

This dataset contains bulk tissue carbon (delta-13C) and nitrogen (delta-15N) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and marsh vertebrates collected at two created and four natural marsh sites in Plaquemines Parish, Louisiana near Lake Hermitage, West Point a la Hache, and Bay Batiste in May 2018. The data set also contains site location, species composition (determined to the lowest taxonomic level), body size, and elemental concentration information. Data are in spreadsheet format.

This dataset consists of blue crab growth and mortality data from caging and tethering experiments in turtlegrass-dominated seagrass beds of the northern Gulf of America, including Lower Laguna Madre, TX; Coastal Bend, TX; Chandeleur Islands, LA; St. George Sound, FL; Cedar Key, FL, and Charlotte Harbor, FL.

This data set contains trawl information from collections near the West Pointe a la Hache siphon in south Louisiana. Species composition (fishes and macroinvertebrates), abundance, biomass and lengths are reported, along with salinity, temperature and dissolved oxygen data. Data are in spreadsheet format.

This dataset contains bulk sulfur stable isotope values (δ34S) derived from muscle tissue collected from fish species utilizing various marsh sub-habitats (edge, creek, ponds) along a salinity gradient in restored (LHA, LHB) and natural (LHC, WPH1, WPH2, PS7) marshes at various distances from a freshwater diversion in the vicinity of West Pointe a la Hache (WPH), Lake Hermitage (LH), and Port Sulphur (PS), Louisiana in May 2018. Species composition (determined to the lowest possible taxonomic level), length, mass, sex, and sulfur content are also included in this dataset. Data are in spreadsheet format.

This dataset consists of stable isotope data from turtlegrass-dominated seagrass beds of the northern Gulf of America (formally the Gulf of Mexico), including Lower Laguna Madre, TX; Coastal Bend, TX; Chandeleur Islands, LA; St. George Sound, FL; Cedar Key, FL, and Charlotte Harbor, FL. Data are in spreadsheet format.