Add text for washington rec catch treatment

01-data-sources.qmd

@@ -44,6 +44,8 @@ Once you have catch values for all years, contact the state representative(s) fo
 
 All states have in the past claimed that all rec. data is available on [RecFIN](http://www.recfin.org/). Users should check with state representatives for updated information on the recommended source for recreational data. One can pull historical catches [here](http://www.recfin.org). Select the "Catch / Sample Data Reports" image which takes you to the reports dashboard. Alternatively, ODBC connections can be used to pull catch estimates directly from the Comprehensive Fish Ticket table. Some data sources (e.g. MRFSS, WA historic catch estimates) are not currently available via the public login, so you need to login with an account that has permission to view the tables. Additionally, once you have catch values for all years, contact the state representative for confirmation that the values are correct.
 
+Washington provides recreational catch in numbers. This leads to two decisions for putting catches into the model: keep catch in numbers, which stock synthesis converts to weights internally; or convert catch to weight using an external estimate. Both options have been done historically. The former causes challenges for projections, but if the former is chosen, it is useful to compare the model's calculated average weight of the catch to the value used to convert numbers to weight to see if there is large disagreement. For a partial history about this issue, and approaches for some past assessments see [issue #52](https://github.com/pfmc-assessments/canary_2023/issues/52) from the canary rockfish git hub page.
+
 To obtain length composition data,
 
 1.  Go to [RecFIN](https://www.recfin.org/)