National Academies Press: OpenBook

Improving Fish Stock Assessments (1998)

Chapter: Appendix I

« Previous: Appendix H
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

I— Model* Results in Terms of Exploitable and Total Biomass

*  

The following abbreviations are used for models: ADAPT = Adaptive approach (age-structured); ADMB = Autodifferentiation Model Builder; ASA = Age-structured assessment models; SS = Stock Synthesis.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.1 Exploitable biomass values using data set 1.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.2 Exploitable biomass values using data set 2.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.3 Exploitable biomass values using data set 3.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.4 Exploitable biomass values using data set 4.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.5 Exploitable biomass values using data set 5.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.6 Total biomass values using data set 1.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.7 Total biomass values using data set 2.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.8 Total biomass values using data set 3.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.9 Total biomass values using data set 4.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×

FIGURE I.10 Total biomass values using data set 5.

Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
This page in the original is blank.
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 161
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 162
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 163
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 164
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 165
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 166
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 167
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 168
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 169
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 170
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 171
Suggested Citation:"Appendix I." National Research Council. 1998. Improving Fish Stock Assessments. Washington, DC: The National Academies Press. doi: 10.17226/5951.
×
Page 172
Next: Appendix J »
Improving Fish Stock Assessments Get This Book
×
Buy Paperback | $72.00 Buy Ebook | $59.99
MyNAP members save 10% online.
Login or Register to save!
Download Free PDF

Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries data—for example underreporting or changes in the likelihood that fish can be caught with a given type of gear—can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.

  1. ×

    Welcome to OpenBook!

    You're looking at OpenBook, NAP.edu's online reading room since 1999. Based on feedback from you, our users, we've made some improvements that make it easier than ever to read thousands of publications on our website.

    Do you want to take a quick tour of the OpenBook's features?

    No Thanks Take a Tour »
  2. ×

    Show this book's table of contents, where you can jump to any chapter by name.

    « Back Next »
  3. ×

    ...or use these buttons to go back to the previous chapter or skip to the next one.

    « Back Next »
  4. ×

    Jump up to the previous page or down to the next one. Also, you can type in a page number and press Enter to go directly to that page in the book.

    « Back Next »
  5. ×

    Switch between the Original Pages, where you can read the report as it appeared in print, and Text Pages for the web version, where you can highlight and search the text.

    « Back Next »
  6. ×

    To search the entire text of this book, type in your search term here and press Enter.

    « Back Next »
  7. ×

    Share a link to this book page on your preferred social network or via email.

    « Back Next »
  8. ×

    View our suggested citation for this chapter.

    « Back Next »
  9. ×

    Ready to take your reading offline? Click here to buy this book in print or download it as a free PDF, if available.

    « Back Next »
Stay Connected!