Advanced Survey Technologies for Assessments in the California Current Ecosystem

We support ecosystem-based fisheries management through new or innovative uses of sampling technologies.

The Advanced Survey Technologies program supports ecosystem-based fisheries management through new or innovative uses of sampling technologies, including: multi-frequency acoustic systems, remotely operated vehicles, instrumented buoys, and instrumented small craft.

Our Objectives

Advanced Surveys Technology logo.
  • Conduct fisheries research and surveys using the instrumentation and methods our program develops.
  • Develop, refine, and employ advanced survey technologies to improve the accuracy, precision, and efficiency of fisheries surveys and thus the resulting stock assessments.
  • Characterize measurement and sampling uncertainties, and define gaps in existing data
  • Maintain an emphasis on the scientific objectives, as opposed to the instrument or instrument platform being developed

Research Activities

  • Assess stocks of coastal pelagic species using acoustic-trawl surveys.
  • Utilize remotely-operated underwater vehicles to assess white abalone and demersal fish (e.g., rockfish) populations.
  • Progress restoration of white abalone populations through outcropping.
  • Progress research and development in:
    • Target Strength and Remote Target Identification, for improving acoustic classification of CPS and ensuring accurate measures when deriving biomass and abundance
    • Uncertainty Estimation, to characterize and mitigate uncertainties inherent in acoustic measures
    • Sound Scatter Modeling, for estimating expected acoustic responses and understanding physical processes in natural behaviors
    • Instrumented Small Craft, for conducting research in nearshore, littoral, or riverine environments
    • Instrumented Buoys, to obtaining long-term datasets for characterizing temporally- and spatially-varying ecosystems
    • Acoustic Survey Technology, to continue the development and application of underwater acoustics concordant with advances in sonar technologies