The Biological Monitoring and Assessment Division is responsible for the collection of information and long-term monitoring programs on commercially and recreationally important marine resources and their fisheries.
Landings data are collected for all Maine commercial marine fisheries.
Detailed catch, effort, and biological data are collected from fishermen along the entire coast of Maine for assessment and management of the American lobster, green sea urchin, sea scallops and Atlantic herring. Samples are processed for length, weight, sex, state of maturity, gonad weight, and age composition. Data are collected for other species including quahogs, crabs, menhaden, northern shrimp, and sea cucumbers.
The division also monitors Maine's marine recreational fisheries.
Data from these studies are used in fishery stock assessments and for fishery management decisions. Scientists participate extensively with other state and federal scientists in interstate and federal stock assessments, technical committees, and plan development teams in order to provide scientific information for fishery managers.