Other ID: MH34-00; IB H-4-00-MY
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Massachusetts Bay, Scituate, Massachusetts, United States, North America, North Atlantic;
Principal Investigator(s): Michael Bothner
Affiliate Investigator(s): William Martin - WHOI
Information Specialist(s): Michael Casso, Frances Lightsom
Data Type(s): Environmental Data: Dissolved Oxygen, Geochemical: Experiments, Imagery: Photo, Imagery: Video, Sampling: Geology, Time Series: Mooring (physical oceanography)
Scientific Purpose/Goals: Three day trips were completed. Day 1: Exchanged moorings off Boston and Scituate. Day 2: Collected sediment cores with the new hydraulically damped corer at Stations 2, 3 and 3b (near the benthic chamber deployment site). Deployed and recovered oxygen profiler - 2 times at Station 3 and once at Station 2. Recovered one benthic chamber by SCUBA divers. The second chamber was not found. Day 3: An attempt was made to recover the lost slow corer from location east of Stellwagen Bank at 200 m water depth. A three grapling hook assembly (on an 8-foot spreader) was used with a camera attached to the middle hook. Dann Blackwood arranged 6 submersible flashlights on the central hook which did a good job illuminating to the side and bottom. The whole assemblage was lowered on half-inch tenex rope (breaking strength about 11,000 lbs). Approximately 2 hours were spent on and around the last known position of the core. It was not seen in the camera, nor was it hooked during the dragging operation.
Start Date: 2000-09-26
Start Port/Location: Boston, MA
End Date: 2000-09-28
End Port/Location: Portland, ME
Equipment Used: Oxygen profiling system from Sayles, Benthic Chambers, Mooring tripod, Corer - piston, Grab sampler - Van Veen , Osprey camera system, Camera- deep sea, Digital camera, Bottom tripod
Information to be Derived:
Summary of Activity and Data Gathered: Lary Ball was the lead diver. Richard Rendigs and Dann Blackwood also made a dive to recover the second benthic chamber. The marker float for this chamber was missing when we arrived on station. A second marker float drifted between the time of initial confirmation of the chamber location (based on the diver-held acoustic range finder) and the actual dive. As a result, the chamber was not recovered. Moorings recovered: 4 (#624, 625, 626 and 627, all deployed FA 00003 MARCUS HANNA May 9-10, 2000). Moorings deployed: 5 (#630, 631, 632 and 634, all deployed FA 01022 MARCUS HANNA Feb. 13-14, 2001; #633 recovered FA 01051 CHRISTOPHER ANDREW Mar. 20, 2001).
Staff: Dann Blackwood, Jonathan Borden, Michael Bothner, Michael Casso, Roger Hubbell, Marinna Martini, Jenna Munson, Joseph S. Newell, Andree Ramsey, Richard Rendigs, David Walsh
Notes: Project = The Massachusetts Bay Experiment, The Massachusetts Bay Experiment
(Samples) Buczkowski, B.J., and Kelsey, S.A., 2007, Archival Policies and Collections Database for the Woods Hole Science Center's Marine Sediment Samples: U.S. Geological Survey Open-File Report 2006-1187, version 1.0.