[Bug Report]: plots using SSB output for mammals render incorrectly

[andybeet]

Describe the bug

Neus atlantis post processing of SSB/recruits shows strange pattern in plots of some species (RWH, BWH, SAL). Could be in the post processing, could be in the atlantistools functions.

Is this a duplicate issue?

• I have searched the existing data.

Can you provide a reprex?

No,

What are you expecting to happen?

Additional content

No response

Session info

sessionInfo()
#> R version 4.5.2 (2025-10-31 ucrt)
#> Platform: x86_64-w64-mingw32/x64
#> Running under: Windows 11 x64 (build 26200)
#> 
#> Matrix products: default
#>   LAPACK version 3.12.1
#> 
#> locale:
#> [1] LC_COLLATE=English_United States.utf8 
#> [2] LC_CTYPE=English_United States.utf8   
#> [3] LC_MONETARY=English_United States.utf8
#> [4] LC_NUMERIC=C                          
#> [5] LC_TIME=English_United States.utf8    
#> 
#> time zone: America/New_York
#> tzcode source: internal
#> 
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> 
#> loaded via a namespace (and not attached):
#>  [1] digest_0.6.37     fastmap_1.2.0     xfun_0.52         glue_1.8.0       
#>  [5] knitr_1.51        htmltools_0.5.8.1 rmarkdown_2.30    lifecycle_1.0.5  
#>  [9] cli_3.6.5         reprex_2.1.1      withr_3.0.2       compiler_4.5.2   
#> [13] rstudioapi_0.17.1 tools_4.5.2       evaluate_1.0.5    yaml_2.3.10      
#> [17] rlang_1.1.7       fs_1.6.7

^{Created on 2026-05-21 with reprex v2.1.1}