I'm posting this mainly for myself, but others may also find it interesting or useful.
I posted weight vs length tables & equation in this blog entry:
https://fishndave.blogspot.com/2013/10/grass-carp-length-vs-weight-table.html
According to Wikipedia, Grass Carp typically live 5-9 years, rarely to 11 years...although one population in Silver Lake, Washington, has been recorded to be living 15 years or more.
https://en.wikipedia.org/wiki/Grass_carp
According to one study, age vs length information is:
Mean back calculated total length was at age:
I – 26.9 cm (10.5")
II – 58.0 cm (22.8")
III – 80.4 (31.6")
IV – 94.4 cm (37.1")
V – 109.1 cm (43")
https://www.ijsr.net/archive/v8i6/ART20198881.pdf
