Dataset: station logs - TRANSPORT Mapping Cruises
Deployment: BT-12-09

Each cruise took place on the R/V Terrapin, a 26-ft Parker with a 275 mercury outboard equipped with a davit, operated by UMCES. On each cruise, several sampling stations were occupied. A CTD cast was made at each station, and the downcast was used to measure water properties. Using a hose attached to the CTD frame, bivalve larvae were collected from near bottom to the surface by moving the CTD up through the water column in 0.5 m depth intervals at regularly spaced time intervals (e.g., every 20 s or every 60 s) depending upon the depth of the station. The water was pumped into a 55-gallon drum half filled with water (to minimize damage to the samples) and through a 64 μm mesh net to collect bivalve larvae. Water samples were collected for chl-a pigment (using a syringe/filter apparatus) to calibrate the fluorometer and for total suspended solids (using a water bottle provided by Analytical Services).