SSV Corwith Cramer C283C (F2018-054)

Cruise summary report

Cruise Info. 
Ship name (ship code)SSV Corwith Cramer (33CC)
Cruise identifierC283C (F2018-054)
Cruise period2019-01-27 — 2019-02-06
Port of departureSan Juan, Puerto Rico
Port of returnChristiansted, Virgin Islands, U.S.
ObjectivesThe goals of the program were primarily educational - 20 students enrolled in the Williams Mystic Maritime Studies Program joined the Cramer to learn ocean sampling techniques and collect data for analysis. The research undertaken on this cruise was a study of the Caribbean Sea and North Atlantic waters in the regions of the U.S. Virgin Islands, British Virgin Islands, and Puerto Rico. To complete this study, we occupied 19 stations consisting of:

1. Water depth profiles (to 1850m) of temperature, salinity, fluorescence, and dissolved oxygen using a CTD at 3 of the 19 stations, with accompanying Niskin bottle samples at set depths for extracted chlorophyll-a, phosphate, and pH.
2. Meter net zooplankton tow (to 600m) at 1 of 19 stations to look at species composition and density.
3. Secchi disk measurements at 4 of the 19 stations.
4. Sediment collection using a Shipek grab at 4 of 19 stations.
5. Surface Neuston zooplankton tows at 7 of the 19 stations to look at species composition and density.
6. Drifted phytoplankton net samples at 4 of the 19 stations.
7. Surface water sample collection at 15 of 19 stations for measurement of fluorescence, pH, phosphate.

In addition, we collected the following continuous data sets:
1. ADCP measurements of ocean currents
2. CHIRP bottom profiles
3. Surface temperature, salinity, fluorescence, CDOM, turbidity, wind speed and direction.
Chief scientistLisa Gilbert (Williams-Mystic)
Cruise reportSSV Corwith Cramer C283C (F2018-054) cruise report corwithcramer_c283.pdf (0.16 MB) 
Ocean/sea areas 
GeneralNorth West Atlantic Ocean (limit 40W)
Caribbean Sea
SpecificVirgin Islands, Puerto Rico