Future needs for Stock Synthesis

1. Future needs for Stock Synthesis

2. Last years requests • See website (http://www.fisheriesstockassessment.com/TikiWiki/tiki-index.php?page=Report+from+the+SS2+Tutorial+2007) • Most requests were implemented

3. This years requests • See website (http://www.fisheriesstockassessment.com/TikiWiki/tiki-index.php?page=Future+needs+for+Stock+Synthesis+2008)

4. Rick’s to do list • TO-DO list • revised input of Tag parameters • MCMC output • Catch cap in forecast (may cause derivative problem) • F implementation error • wtfreq and tag output in nudata • Fishery sector designation (comm vs recr) • read empirical size-at-age • read empirical body wt-at-age • rebuilder output • SIS output • neg binomial like fxn for survey observations better male selex options

5. Request from Rick Methot • Currently for movement:1. user specifies which GP, seas, source, dest combinations will havemovement2. parameters are required for each combination selectedShortcomings:1. movement cannot be gender specific2. movement rates in a multi-area model cannot be sharedAre these shortcomings a big deal for you, or just a minor hindrance?Possible Solution:1. add gender as a condition for specifying movement2. add a code for selected movement pattern to each condition3. then only need to create movement parameters for the N movement patterns4. this will allow, for example, males and females for a particularsource - dest to share the same movement parameters, or not. Also wouldallow movement rate between area 1 and 3 to share same movementparameters as are used between areas 1 and 2.Similarly for the tag-recapture parameters, I could revise so that youwould create a list of unique tag mortality parameters, tag reportingparameters, tag dispersion parameters, etc. Then, each tag group wouldspecify which parameter it was using.

6. Natural mortality (see worksheet) Where sa is the same as the 6 parameter selectivity curve

7. Other suggestions?