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2.6 ASAP
The Age Structured Assessment Program (ASAP) uses forward computations assuming separability of fishing mortality into year and age components to estimate population sizes given observed catches, catch-at-age, and indices of abundance. Discards can be treated explicitly. The separability assumption is relaxed by allowing for fleet-specific computations and by allowing the selectivity at age to change smoothly over time or in blocks of years. The software can also allow the catchability associated with each abundance index to vary smoothly with time. The problem’s dimensions (number of ages, years, fleets and abundance indices) are defined at input and limited by hardware only. The input is arranged assuming data is available for most years, but missing years are allowed. The model currently does not allow use of length data nor indices of survival rates. Diagnostics include index fits, residuals in catch and catch-at-age, and effective sample size calculations. Weights are input for different components of the objective function and allow for relatively simple age-structured production model type models up to fully parameterized models.
The calculation engine was built using AD Model Builder by Drs. Christopher M. Legault (currently at the NMFS Northeast Fisheries Science Center) and Victor R. Restrepo (currently at ISSF).
ASAP has been used as an assessment tool for red grouper (SEFSC), yellowtail flounder (NEFSC), Pacific sardine (SWFSC), Pacific mackerel (SWFSC), Greenland halibut (ICES), Northern Gulf of St. Lawrence cod (DFO), Gulf of Maine cod (NEFSC), Florida lobster (FFWCC), and fluke (NEFSC).
Current Entry April 3, 2017
First Entry April 3, 2017
First ICCAT Reference ICCAT Bluefin assessment report 2010
Catalogue Committee
Proposer: Jean-Jacques Maguire
Seconder:
Reviewers:
ICCAT Secretariat
https://noaa-fisheries-integrated-toolbox.github.io/ASAP
The ASAP User's Guide is included in the installation as a PDF file.
Sample files are included in the installation.
The Technical Document distributed with ASAP contains the source code for the program.
https://noaa-fisheries-integrated-toolbox.github.io/
The Technical Document distributed with ASAP contains the source code for the program.
ASAP does not require other software to run, except a PC operating system. The current executable runs on 32-bit and 64-bit versions of Windows. It also runs on Apple computers with Intel processors and suitable Windows support. Versions of ASAP for Linux may be available on request. ASAP is part of the NOAA Fisheries Toolbox programs and it was reported that some of the programs in the Toolbox may not run correctly on Windows 10. This can be solved by installing a Windows 7 virtual computer on your Windows 10 computer. Windows 10 Hyper-V is a tool for installing virtual computers. You first need to activate Hyper-V, next make sure that your BIOS allows virtualization. Other tools exist such as Oracle's Virtual-Box.
See first paragraph above
See user manual.
See user manual
See user manual
The software is included in the NOAA Fisheries Toolbox (https://noaa-fisheries-integrated-toolbox.github.io/).