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Welcome to the Stock Synthesis Discussion Forum
Content on how to use SS3 (getting started material, user manual, vignettes) can be found on our
website
.
You can post messages here by sending an email to
ss3-forum@googlegroups.com
.
When asking to join the ss3-forum Google group, please provide us with your name and the institution that you are working at in the 'Reason for joining' section of the message.
Rick & SS3 Team
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Paola Castellanos
, …
Mark Maunder
3
Jul 2
Advice on configuring ontogenetic migration in SS3
You might want to look at Hui-Hua's paper. Lee, HH., Piner, KR, Maunder, MN, Taylor, IG, Methot
unread,
Advice on configuring ontogenetic migration in SS3
You might want to look at Hui-Hua's paper. Lee, HH., Piner, KR, Maunder, MN, Taylor, IG, Methot
Jul 2
Richard Methot - NOAA Federal
Jun 30
SS3.30.25 is released
We have released version 3.30.25. Please see the 3.30.25 Release Notes. Please note the section in
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SS3.30.25 is released
We have released version 3.30.25. Please see the 3.30.25 Release Notes. Please note the section in
Jun 30
Elizabeth Perl - NOAA Affiliate
Jun 22
Call for v3.30.25 Pre-release Testing
Hello SS3 users, Late last week we put out the v3.30.25 pre-release that contains some changes to the
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Call for v3.30.25 Pre-release Testing
Hello SS3 users, Late last week we put out the v3.30.25 pre-release that contains some changes to the
Jun 22
Richard Methot - NOAA Federal
,
Guillermo Caballero Luján
6
Jun 16
June 11 SS3 webinar on interaction of growth and seasonality
And now the more accessible pre-release is: v3.30.25-prerel Pre-Release Docs Repository: nmfs-ost/ss3
unread,
June 11 SS3 webinar on interaction of growth and seasonality
And now the more accessible pre-release is: v3.30.25-prerel Pre-Release Docs Repository: nmfs-ost/ss3
Jun 16
Marta Cousido
, …
Ian Taylor - NOAA Federal
7
May 29
Why does recruitment show a StdDev in forecast years when using fixed geometric mean?
Hi Rick and Ian, Thank you very much for your support and patience helping me to understand what was
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Why does recruitment show a StdDev in forecast years when using fixed geometric mean?
Hi Rick and Ian, Thank you very much for your support and patience helping me to understand what was
May 29
Elizabeth Perl - NOAA Affiliate
May 27
FIMS Code Club happening NOW!
Hi SS3 Users, Sorry for the late notice but if you are free now, we have a FIMS Code Club meeting
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FIMS Code Club happening NOW!
Hi SS3 Users, Sorry for the late notice but if you are free now, we have a FIMS Code Club meeting
May 27
Gwladys Lambert
, …
Richard Methot - NOAA Federal
7
Mar 23
Issue setting up recdevs and initial catch, short TS of bio data
Here's a general response and I'll respond directly to you separately after studying the
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Issue setting up recdevs and initial catch, short TS of bio data
Here's a general response and I'll respond directly to you separately after studying the
Mar 23
Richard Methot - NOAA Federal
Mar 11
SS3.30.24.2 is released
SS3 Release Notes 3.30.24.2 March 2026 Greetings SS3 users. Our sharp-eyed users have found a couple
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SS3.30.24.2 is released
SS3 Release Notes 3.30.24.2 March 2026 Greetings SS3 users. Our sharp-eyed users have found a couple
Mar 11
Richard Methot - NOAA Federal
Mar 5
Update from SS3 team
Hello SS3 users, Here's a short update on what we've been working on for SS3. In February, we
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Update from SS3 team
Hello SS3 users, Here's a short update on what we've been working on for SS3. In February, we
Mar 5
Richard Methot - NOAA Federal
,
Elizabeth Gugliotti - NOAA Affiliate
2
Feb 17
Office Hours on Feb 17
Hi SS3 users, Reminder that we are having SS3 office hours today at 3 pm ET / 12 pm PT. Link to join
unread,
Office Hours on Feb 17
Hi SS3 users, Reminder that we are having SS3 office hours today at 3 pm ET / 12 pm PT. Link to join
Feb 17
Michael Schirripa
, …
Carolina Minte-Vera
6
12/8/25
ChatGPT and SS
Another useful AI is Consensus https://consensus.app/ which access only scientific papers. I have not
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ChatGPT and SS
Another useful AI is Consensus https://consensus.app/ which access only scientific papers. I have not
12/8/25
Guillermo Caballero Luján
, …
Rick Methot
4
11/18/25
Trouble fitting length distributions of the survey.
Also consider the seasonality of the sampling for fishery length comp vs survey length comp. Sardines
unread,
Trouble fitting length distributions of the survey.
Also consider the seasonality of the sampling for fishery length comp vs survey length comp. Sardines
11/18/25
Nick Fisch
,
Richard Methot - NOAA Federal
2
11/13/25
Fmsy search warnings
Hi Nick, I'm glad that you looked at the forecast-report.sso to look at the iterations searching
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Fmsy search warnings
Hi Nick, I'm glad that you looked at the forecast-report.sso to look at the iterations searching
11/13/25
Elizabeth Gugliotti - NOAA Affiliate
10/20/25
Tuesday 10/21 SS3 Office Hours CANCELLED
Hello SS3 community, Due to the lapse of appropriations and the furlough status of NOAA Fisheries
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Tuesday 10/21 SS3 Office Hours CANCELLED
Hello SS3 community, Due to the lapse of appropriations and the furlough status of NOAA Fisheries
10/20/25
Guillermo Caballero Luján
, …
Elizabeth Perl - NOAA Affiliate
4
10/9/25
Error in age data composition
Hi Guillermo, As Kelli and Joel said, to get the model to run using v3.30.19 I had to change the
unread,
Error in age data composition
Hi Guillermo, As Kelli and Joel said, to get the model to run using v3.30.19 I had to change the
10/9/25
Laura Lee
2
9/25/25
error loading r4ss
Hey everyone! I found a solution...I downloaded the package source file for kableExtra and installed
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error loading r4ss
Hey everyone! I found a solution...I downloaded the package source file for kableExtra and installed
9/25/25
Brooke Lowman
, …
Mark Maunder
4
9/24/25
troubleshooting catch/F scaling issues
Hi Jason, Thanks for the quick response! I hadn't thought of 0.1 as a high CV (the catches,
unread,
troubleshooting catch/F scaling issues
Hi Jason, Thanks for the quick response! I hadn't thought of 0.1 as a high CV (the catches,
9/24/25
Richard Methot - NOAA Federal
9/19/25
SS3.30.24.1 is released
SS3 Release Notes 3.30.24.1 Sept 2025 Greetings so soon again. Well, immediately after releasing 3.30
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SS3.30.24.1 is released
SS3 Release Notes 3.30.24.1 Sept 2025 Greetings so soon again. Well, immediately after releasing 3.30
9/19/25
Larry Jacobson
, …
Quang Huynh
5
9/19/25
Gompertz growth for Pacific saury and the long spawning season
Hi Rick, Thanks for the helpful info about how growth is incremented for each cohort. For (1), what I
unread,
Gompertz growth for Pacific saury and the long spawning season
Hi Rick, Thanks for the helpful info about how growth is incremented for each cohort. For (1), what I
9/19/25
Elizabeth Gugliotti - NOAA Affiliate
9/16/25
No SS3 webinar this week
Hi SS3 users, We originally had a webinar scheduled for this week on Thursday, September 18, but we
unread,
No SS3 webinar this week
Hi SS3 users, We originally had a webinar scheduled for this week on Thursday, September 18, but we
9/16/25
Laura Lee
, …
Ian Taylor - NOAA Federal
7
9/16/25
Advice on length-based selectivity
Thanks everyone for the feedback! Lots of ideas to investigate and I am very appreciative. Best,
unread,
Advice on length-based selectivity
Thanks everyone for the feedback! Lots of ideas to investigate and I am very appreciative. Best,
9/16/25
Richard Methot - NOAA Federal
9/10/25
SS3.30.24 is released
We have released version 3.30.24. Please see the 3.30.24 Release Notes. We always encourage everyone
unread,
SS3.30.24 is released
We have released version 3.30.24. Please see the 3.30.24 Release Notes. We always encourage everyone
9/10/25
Brooke Lowman
,
Kelli Johnson
3
9/9/25
help interpreting and diagnosing errors in r4ss::SS_output()
Ah, yes, that fixed it. Thank you! On Monday, September 8, 2025 at 1:56:16 PM UTC-4 Kelli Johnson
unread,
help interpreting and diagnosing errors in r4ss::SS_output()
Ah, yes, that fixed it. Thank you! On Monday, September 8, 2025 at 1:56:16 PM UTC-4 Kelli Johnson
9/9/25
Laura Lee
, …
Mark Maunder
6
8/25/25
Best practices for setting starting value of initial equilibrium catch
We have discussed this several times in the past. After a quick look, I could not find a summary of
unread,
Best practices for setting starting value of initial equilibrium catch
We have discussed this several times in the past. After a quick look, I could not find a summary of
8/25/25
Guillermo Caballero Luján
, …
Richard Methot - NOAA Federal
3
8/25/25
Max AgeComp observations
This number is one of the very few hard limits on size of arrays in SS3. Exceeding this limit only
unread,
Max AgeComp observations
This number is one of the very few hard limits on size of arrays in SS3. Exceeding this limit only
8/25/25
Laura Lee
,
Richard Methot - NOAA Federal
2
8/25/25
Error: Fmsy/mey is <1/3 of Fspr are you sure? check for convergence
Hi Laura, Fmsy is legitimately much less than Fspr40% if steepness is low. If steepness is > ~0.7,
unread,
Error: Fmsy/mey is <1/3 of Fspr are you sure? check for convergence
Hi Laura, Fmsy is legitimately much less than Fspr40% if steepness is low. If steepness is > ~0.7,
8/25/25
Elizabeth Gugliotti - NOAA Affiliate
2
8/18/25
SS3 Office Hours Tuesday, August 19
Hello everyone, This is a reminder of our SS3 office hours happening tomorrow, August 19 at 3 pm ET /
unread,
SS3 Office Hours Tuesday, August 19
Hello everyone, This is a reminder of our SS3 office hours happening tomorrow, August 19 at 3 pm ET /
8/18/25
Laura Lee
, …
Ian Taylor - NOAA Federal
4
8/14/25
Error using superperiod for length comps
Thanks so much for figuring this out! I'm glad it was something simple. Best, Laura On Wed, Aug
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Error using superperiod for length comps
Thanks so much for figuring this out! I'm glad it was something simple. Best, Laura On Wed, Aug
8/14/25
Richard Methot - NOAA Federal
7/22/25
SS webinar is today, July 22
Sorry for getting the date wrong in the title in yesterday's message. Here is the correct meeting
unread,
SS webinar is today, July 22
Sorry for getting the date wrong in the title in yesterday's message. Here is the correct meeting
7/22/25
Richard Methot - NOAA Federal
7/21/25
SS3 webinar tomorrow, 7/21 on effect of time-varying biology on reference points
Greetings SS3 users. Tomorrow, I'll give a webinar that accompanies the pre-release we made
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SS3 webinar tomorrow, 7/21 on effect of time-varying biology on reference points
Greetings SS3 users. Tomorrow, I'll give a webinar that accompanies the pre-release we made
7/21/25