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Shellfish area biologist staff directory

Below are the towns/cities covered by each biologist and their specialty.

Table of Contents

South Shore Shellfish Program

Cohasset to Westport, including Cape Cod and the Islands.


Thomas Shields, South Shore Regional Shellfish Supervisor & John T. Hughes Hatchery Manager

Tel: (508) 742-9767



Gregory Sawyer, Senior Shellfish Area Biologist

Areas: Fall River, Somerset, Swansea, Plymouth, Westport

Specialty: Contaminated Shellfish Relays

Tel: (508) 742-9769



John Mendes, Shellfish Area Biologist

Areas: Gosnold, Falmouth, Kingston, Duxbury, Mashpee, Oak Bluffs, Edgartown, Bourne

Specialty: Shellfish Task Force and Posting of Closure Signs on South Shore

Tel: (508) 742-9764



Terry O’Neil, Shellfish Area Biologist

Areas: Brewster, Eastham, Chatham, Dennis, Harwich, Orleans, Yarmouth, and Barnstable

Specialty: Phytoplankton Monitoring, PSP Sample Scheduling, Bacteriological Lab Backup

Tel: (508) 742-9765



Christian Petitpas, Assistant Shellfish Area Biologist

Areas: Nantucket, Tisbury, West Tisbury, Aquinnah, Chilmark, Wellfleet, Truro and Provincetown, Middle of Nantucket Sound

Specialty: Bacteriological Lab Backup Support, HAB Specialist

Tel: (508) 742-9766



Gabriel Lundgren, Assistant Shellfish Biologist

Specialty: Aquaculture permitting, surveying and field sampling support

Tel: (508) 742-9761



Susan Boehler, Bacteriology Laboratory Supervisor 

Tel: (508) 742-9759


North Shore Shellfish Program

Hull to Salisbury including greater Boston Harbor


Jeff Kennedy, North Shore Regional Shellfish Supervisor & Newburyport Shellfish Purification Plant Manager

Tel: (978) 282-0308 x165



Greg Bettencourt, Shellfish Area Biologist

Areas: Boston, Chelsea, Marblehead, Nahant, Newbury, Newburyport, Quincy, Salisbury, Swampscott, Winthrop

Specialty: Database Administrator and GIS Mapping

Tel: (978) 282-0308 x161



Melissa Campbell, Shellfish Area Biologist

Areas: Gloucester

Specialty: Phytoplankton Monitoring and Newburyport Laboratory Support

Tel: (978) 282-0308 x131



Ryan Joyce, Shellfish Area Biologist

Areas: Essex, Hingham, Hull, Ipswich, Lynn, Revere, Saugus

Tel: (979) 282-0308 x171



Devon Winkler, Shellfish Area Biologist

Areas: Beverly, Braintree, Gloucester, Ipswich, Manchester, Newbury, Rockport, Rowley, Salem, Weymouth

Specialty: Hydrographic Studies

Tel: (979) 282-0308 x169



Florence Cenci, Laboratory Supervisor

Specialty: Bacteriology and Marine Biotoxins

Tel: (979) 282-0308 x135


Newburyport Shellfish Purification Plant

Diane Regan, Laboratory Supervisor

Specialty: Shellfish Bacteriology and Vibrio Analysis

Tel: (978) 465-3553 x312