Related items
Showing items related by metadata.
-
DocumentPro-Poor Livestock Policy Initiative: A Living from Livestock. Ex ante Tool for Ranking Policy Alternatives. EXTRAPOLATE version 1.1 Draft. User Guide 2008
Also available in:
No results found.Extrapolate is a decision support tool that assesses the impact of different policy measures. By disaggregating the effects of policy interventions the tool facilitates discussion of the relevant issues and enables users to visualise the predicted impacts of policy interventions, based on a simple numerical analysis. The tool helps decision makers to sift through a range of policy measures to identify those that could be applied in a specific situation to achieve particular outcomes that further specific policy objectives. This user guide has been written to provide step-by-step instructions for all the features of the EXTRAPOLATE software. -
No Thumbnail AvailableBook (series)Introduction to tropical fish stock assessment - Part 2: Excercises 1999
Also available in:
A selection of methods on fish stock assessment is described in detail, with examples of calculations. Special emphasis is placed on methods applicable to tropical fisheries, i.e. those based on the analysis of length-frequencies. After a short introduction to statistics, it covers the estimation of growth parameters and mortality rates, virtual population methods (including length and age based methods), gear selectivity, the yield per recruit model of Beverton and Holt, the estimation of maxim um sustainable yield using surplus production models, multispecies and multifleet problems, the assessment of migratory stocks, a discussion on the stock/recruitment relationship and the execution of demersal trawl surveys. The link between this manual and the length frequency stock assessment (LFSA) package of microcomputer programs is explained. The manual is completed with an extensive list of references (including material for further reading), a list of symbols used, a subject index and a n umber of exercises with solutions. Part 2 gives a number of exercises together with solutions. The exercises are directly related to the various chapters and sections of the manual. -
Book (series)BAYES-SA - Bayesian stock assessment methods in fisheries - User's manual 2001
Also available in:
No results found.Bayesian approaches to stock assessment provide a means for the analyst to combine information for the stock for which an assessment is needed, information based on expert opinion, and inferences for other species in a probabilistic framework. It is even possible to consider uncertainty about which model of the population dynamics is correct. This manual provides an overview of the application of Bayesian methods through a series of worked examples in EXCEL. The examples are based on biomass dyn amics and stock-recruitment models, and focus on the use of assessments that form the basis for evaluating the consequences of alternative management actions. Also available in HTM format: http://www.fao.org/3/Y1958E/Y1958E00.htm
Users also downloaded
Showing related downloaded files
No results found.