Microbial Exchanges and Coupling in Coastal Atlantic Systems (MECCAS) cruise data collected aboard the R/V Gyre at the mouth of the Chesapeake Bay and northern Atlantic Ocean. Each of four MECCAS cruise data sets is divided into 3 files. File 1 contains underway surface mapping data. For this study 12 parameters were measured, including location, temperature, salinity, ammonium, nitrate, nitrite, phosphate, and silicate at +/- 0.03-0.1 um. File 2 contains vertical profiles at stations along mapping routes; the 12 parameters measured were the same as those for surface mapping data as described above. File 3 contains vertical profiles at drogue stations; 96 parameters were measured. Parameters include CTD data, zooplankton data (biomass, heterotrophic and autotrophic grazing rates, and production rate estimates), bacteria data (cell count, estimated volume, nutrient assimilation, and production rate estimates), and nanoplankton data (abundance of pigmented and non-pigmented eukaryotes and estimates of bacterial removal rates). Nutrient data contained in file 3 includes dissolved free amino acids (carbon content in free serine, glycine, and alanine in nanograms/liter.

These entries contain chlorophyll and phaeophytin data collected in June 1986 in the North West Atlantic aboard the CAPE HATTERAS on the Hyalinus cruise. The data were submitted by Byron K. Sherman of the Skidaway Institute of Oceanography.

The Bottle biochemistry data from 16 casts containing Depth/ Temperature/ Salinity/ Oxygen/ phosphate/ nitrate/ nitrite/ chlorophyll/ phaeophytin/ pressure/ bacteria measurements in this accession was collected as part of Joint Global Ocean Flux Study between October 1, 1988 and September 30, 1991 using ship CAPE HATTERAS. The data was submitted by Dr. Anthony H. Knapp, Woods Hole Oceanographic Institution, Woods Hole, MA.

The Conductivity, Temperature and Depth (CTD) and other data were collected in NW Atlantic (limit-40 W) as part of Ocean Margins Program. Data was collected from Ship CAPE HATTERAS. The data was collected over a period spanning from July 14-18, 1993. Two files of CTD data was submitted by Nelson D. Sherry, Biology Department, University of Oregon, Eugene, OR via FTP.

This dataset contains surface discrete measurements of dissolved inorganic carbon, water temperature, salinity, dissolved oxygen, nutrients, and other variables collected from discrete profile observations during the R/V Cape Hatteras cruise CapeHatteras_2006 (EXPOCODE 32KZ20060517), in the North Atlantic ocean from 2006-05-17 to 2006-05-26. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry resulting in a reduction in pH, a process termed ocean acidification. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the South Florida Project Cruises (SFP) are utilized to collect water samples to measure water inorganic carbon and hydrographic parameters including nutrients.

This dataset includes surface underway, chemical, meteorological and physical data collected during R/V Cape Hatteras cruises in the US South East Coastal Waters and North Atlantic Ocean from 2005-01-05 to 2006-05-27. These data include partial pressure (or fugacity) of carbon dioxide - water, sea surface salinity, sea surface water temperature and barometric pressure. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Wei-Jun Cai of University of Delaware as part of the South Atlantic Bight (SAB) dataset. The survey was carried out on six cruises: 5-16 January 2005, 19-30 March 2005, 27 July - 5 August 2005, 7-17 October 2005, 16-21 December 2005, and 17-27 May 2006. In all of the sampling cruises except for the one in December 2005, the research vessel transected the whole SAB from coastline to about 500 m water depth. The survey focused on 5 cross-shelf transects that are named E-, D-, C-, B-, and A-transects respectively from north to south (Figure 1). In December 2005 the ship still transected the whole SAB, but did not cover D- and B-transects and did not go beyond the 200 m isobath. Sea level pressure was recorded using an on board R.M. Young® barometric pressure sensor. Sea surface temperature (SST) and salinity were recorded continuously with an on-board SeaBird® flow through thermosalinography. Surface water and atmospheric xCO2 were also measured underway during all cruises.

This dataset includes bacterial abundance, cell volume and activity data collected using CTD rosette and bottle sampler. These data were collected aboard Nathaniel B. Palmer during cruises 96-4a (OCT 17-NOV 06, 1996), 97-01 (Jan 14 - Feb 06, 1997), and 97-03 (Apr 12 - 28, 1997), as part of the JGOFS Southern Ocean Project. The principal investigator is Dr. Hugh Ducklow, Virginia Institute of Marine Science.

Ocean biology data were collected in Southern Drake Passage and Scotia Sea during two research cruises supported by NSF awards. These two cruises, namely LMG0402 and NBP0606, were conducted during February to March 2004 and July to August 2006, respectively. Dataset includes concentration of pigments in phytoplankton, particulate organic matter concentration, macronutrients, primary productivity and microbial biomass and productivity.

Phytoplankton and other data were collected in the Antarctic from the NATHANIEL B. PALMER and ROGER REVELL from 17 October 1996 to 15 March 1998. Bottle data include enumeration and counts of bacteria, picoplankton, nanoplankton and nano microplankton. Bottle data also include concentrations of trace metals. CTD data include conductivity, temperature, and salinity profiles. Data were collected in support of the US Joint Global Ocean Flux Study / Antarctic Environments Southern Ocean Process Study (JGOFS/AESOPS).

This cruise provides the opportunity to expand the database we are amassing on Synechococcus diversity and distribution for our NSF project "The role of iron (Fe) in controlling in situ distributions and activities of marine Synechococcus" into an area that has not been well studied, and also provides the opportunity to test out hypotheses with controlled experimental manipulations of Fe, light, and temperature in the field. The Eastern Tropical South Pacific (ETSP) is a highly productive area where the small size (0.6-2 micron) fraction generally dominates biomass and accounts for ~40% of primary productivity (Duhamel & Moutin 2009). Synechococcus, a cosmopolitan picocyanobacterium, is a component of this fraction, and can be greater than 104 ml-1 in parts of the upwelling (Masquelier & Vaulot 2008). Despite this recent knowledge, the area is chronically under sampled and our understanding of the dynamics of picocyanobacteria in this region are lacking.