Stock Assessments

Scientific evaluations of fish stock status, providing critical data on population sizes, health, and trends to inform management decisions.

  • Arlington, VA – The Atlantic States Marine Fisheries Commission will hold the Atlantic Croaker Benchmark Stock Assessment Workshop at the Commission’s office, 1050 N. Highland Street, Suite 200 A-N, Arlington, VA. The stock assessment will evaluate the health of Atlantic croaker stocks and inform management of this species. The Commission’s stock assessment process and meetings are open to the public, with the exception of discussions of confidential data*, when the public will be asked to leave the room.  The Stock Assessment Workshop will focus on evaluation of models and analyses developed to estimate stock status. The Commission welcomes the submission…

  • This document summarizes the 2025 Stock Assessment Updates for the Gulf of Maine (GOM) and Southern New England/Mid-Atlantic (SNE/MA) winter flounder stocks. Both assessments revise the 2011 Benchmark Stock Assessments that were peer-reviewed by an independent panel of scientific experts at the 52nd Northeast Regional Stock Assessment Workshop/Stock Assessment Review Committee (SAW/SARC 52) meeting. These assessments reflect the latest and best information available on the status of the two winter flounder stocks for use in fisheries management.

  • This assessment of the Southern New England Mid-Atlantic Winter Flounder (Pseudopleuronectes americanus) stock is a management track assessment update of the existing benchmark assessment (NEFSC 2011), and follows management track updates in 2015, 2017, 2020, and 2022. In each assessment since the benchmark, except for 2022, the stock was overfished, but overfishing was not occurring (NEFSC 2015, 2017, 2020, 2022). In the 2022 management track, stock status changed to not overfished due to a change in the recruitment stanza used to calculate biological reference points. The current assessment updates commercial fishery catch data, recreational fishery catch data, research survey indices…

  • This assessment of the Gulf of Maine Winter Flounder (Pseudopleuronectes americanus) stock is a management track assessment of the existing 2022 area-swept management track assessment (NEFSC, 2022). Based on the previous assessment the biomass status is unknown but overfishing was not occurring. This assessment updates commercial and recreational fishery catch data, research survey indices of abundance,

  • This document provides an overview of the 2025 stock assessment update for tautog (Tautoga onitis), which includes four regional stock assessments. The updates uses the assessment methodology that was approved for management use as part of the 2016 Regional Benchmark Stock Assessment and subsequently used in the 2017 and 2021 updates. The following overview provides a mix of general information that applies to all four regional assessments and region-specific information that covers stock status and landings.

  • This document presents a summary of the 2025 benchmark stock assessment for American lobster (Homarus americanus) provides the most recent information on the status of US American lobster stocks. The assessment was peer-reviewed by an independent panel of scientific experts through the Commission’s external review process.

  • The 2025 benchmark stock assessment for American lobster (Homarus americanus) provides the most recent information on the status of US American lobster stocks. The assessment was peer-reviewed and fully endorsed by an independent panel of scientific experts through the Commission’s external review process. This American Lobster Board accepted the assessment and peer-review for management use on October 27, 2025.

  • Tautog is assessed and managed in four stock regions: the Massachusetts-Rhode Island (MARI) region, the Long Island Sound (LIS) region, the New Jersey-New York Bight (NJ-NYB) region, and the Delaware-Maryland-Virginia (DMV) region. This stock assessment is an update to the existing benchmark assessment for tautog (ASMFC 2015, ASMFC 2016); the previous assessment update was completed in 2021 (ASMFC 2021). This assessment updates the accepted statistical catch-at-age model for each region with commercial and recreational fishery catch data and indices of relative abundance from fishery-independent and fishery-dependent data sources through the terminal year of 2024