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Summary Review of the Summer Flounder Stock Assessments (2000) / Chapter Skim
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Letter Report - Summary Review of the Summer Flounder Stock Assessments
Pages 1-5

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From page 1...
... , as well as to examine broader issues of fisheries data collection, management, and use. The committee fully reviewed the summer flounder stock assessments of 1997 and 1999 and held public meetings to hear the concerns of commercial fishermen, recreational fishermen, and environmental advocacy groups related to those summer flounder assessments.
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From page 2...
... applications. NOTE: NMFS = National Marine Fisheries Service, NBC = National Research Council, and VPA = virtual population analysis.
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From page 3...
... to allow for some variation in selectivity over time.3 When the CAGEAN mode! was used with varying selectivity at age O and age I, the spawning stock biomass estimates more closely followed those clerived under the ~ 999 NMFS assessment (results not shown)
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From page 4...
... In the last year of the series, each method produced almost the same estimate of fishing mortality, yet all are above the fisheries management target level for F of 0.24. 2.0 ~ .5 1.0 0.5 0.0 J"~< aim\\/ \/t'j.',,~_ _N _ ~ 1985 1990 1995 Year NMFS ADAPT CAGEAN VPA NRC ADAPT FIGURE 4 Summer flounder fishing mortality for ages 2-4 as estimated by NMFS and compared with three independently conducted model applications (see Figure ~ for legend)
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From page 5...
... Much more detailed analyses, and additional findings and recommendations, will be presented in the full report, Improving the Collection', Management, and Use of Marine Fisheries Data. 4 National Research Council.
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Key Terms

  • fishing mortality
  • stock biomass
  • stock assessment
  • spawning stock
  • stock assessments

  • cagean model
  • flounder stock
  • model builder
  • builder software
  • assessment workshop

  • flounder data
  • nmfs assessment
  • population analysis
  • separable selectivity
  • marine fisheries

  • adapt models
  • model applications
  • data using
  • survey cpue
  • conducted model

  • national marine
  • improving fish
  • fisheries data
  • age classes
  • autodifferentiation model

  • fish stock
  • models yielded
  • independently conducted
  • fisheries service
  • virtual population


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