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Looking for a SS3 model meeting our requirements

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Marco Kienzle, modified 4 Years ago.

Looking for a SS3 model meeting our requirements

Youngling Posts: 1 Join Date: 4/27/17 Recent Posts

Dear SS3 users,

 

We’ve been asked to fit a SS3 model to a fishery dataset to estimate mortality rates within a limited timeframe (< 6 weeks). Since I have no previous experience with this particular software, I am looking to re-use someone’s work to fit a SS3 model within this short timeframe.

 

I am looking for a stock synthesis model that estimates mortality rates, recruitment and stock biomasses using (1) a sample of age from landings; (2) effort; (3) yield and (4) weight at age. The data are attached. An example of fitting this dataset for stock assessment purposes using hazard functions is available at https://arxiv.org/abs/1701.07053

 

Could someone help ?

 

Regards,

Marco

 

 

 

 

Marco Kienzle 
Biometrician

 

Department of Agriculture and Fisheries

Street Address: Level 2, Building A (East), Ecosciences Precinct, Joe Baker St, Dutton Park QLD 4102 
Postal Address: Ecosciences Precinct, GPO Box 267 Brisbane Qld 4001

Courier Address: Basement 3 Loading Dock (off Joe Baker Street), Dutton Park Qld 4102 
Telephone 07 3708 8332 Fax 07 3708 8429
Email marco.kienzle@daf.qld.gov.au 
Website www.daf.qld.gov.au Call Centre 13 25 23

 

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Richard Methot, modified 4 Years ago.

RE: Looking for a SS3 model meeting our requirements

Youngling Posts: 219 Join Date: 11/24/14 Recent Posts

Marco,

I do not know of anyone who has done exactly what you are looking for.  SS does have good flexibility that might make analysis of your situation feasible, but it may not be the optimal choice.  If the animal you are working on is very short-lived (weeks), then you could configure SS with daily or weekly timesteps and analyze your 6 weeks as a time series within SS.  However, I suspect that the animal is more long-lived (few years at least), in which case it is unclear how to examine your 6 weeks of data.  I think it mostly matters whether these 6 weeks are viewed as a sample in time from which you want to infer the impact of mortality that occurred in the years prior to that 6 week period, or are you looking to make inference from mortality that is happening within that 6 week period?

So, I'm not sure whether SS is the right tool for your situation.  You can correspond with me at richard.methot@noaa.gov and describe the analysis you want to do.

Rick