Summary for Field Activity Number 2005-038-FA

Alternate Leg ID: MH49-05

Area of Operations: Massachusetts Bay, Massachusetts, United States, North America, North Atlantic

Dates: September 28, 2005 to September 29, 2005

Objectives: Recover moorings, deploy small tripod, SCUBA dive for horse mussels, collect sediment cores, and deploy and recover sediment probe for oxygen profiles and fluxes.

Type of Activity: Sampling
Mooring work
Photography

Information to be derived: Time series data
Samples and Chemical Analysis

Summary: Moorings recovered: 3 (#786, 788 deployed FA 05022 MARCUS HANNA May 18-19, 2005; #792 deployed FA 05025 ARGO MAINE Jun. 6-8, 2005). Mooring deployed: 1 (#805, recovered FA 06003 MARCUS HANNA Feb. 8, 2006). All moorings successfully recovered. A small tripod re-deployed for February pickup. Cores collected from long-term Massachusetts Bay Stations 3 and 2. SCUBA divers collected Horse Mussels (Modiolus modiolus) from rocks (not in sediment) from MWRA Station T-4 on a drumlin south of the outfall. On Day 2, 5 cores were taken from Station 8 in Boston Harbor and 1 hour was spent using the ROV with recorded video surveying the bottom in President Roads off Deer Island (80-100 m water depth) in search of additional mussel beds. No living specimens were found. Some empty horse mussel shells suggest that further surveying might be productive.

USGS Project Number: 2921-BOF96 - Project Description

Contact: Mike Bothner (mbothner@usgs.gov)

InfoBank: uses the identifier H-2-05-MY. Visit this site for more information.