XSA by sex

[Boporo86]

Hello,

I'm new to using the XSA method and I'm trying to apply it by gender (males and females in the same assessment). Is it possible to do it using the FLXSA?

I am looking for similar references, but I have not been successful.

Thanks

[iagomosqueira]

Running XSA for 2 sexes is the same as running for two separate stocks as XSA does not assume a stock recruitment relationship. I.e. you need to provide catch-at-age, M-at-age by sex and then run 2 XSA. Laurie

[Boporo86]

Thanks for the feedback.

Precisely, I have data disaggregated by sex, so I can estimate catch at age by sex, natural mortality by sex (still to be estimated) and abundance index from surveys by sex (I can estimate them). In these cases, how is the total biomass estimated? are the biomasses of both "stocks" added? if that is the case, can you provide me with references?