Oh no, they change that much and sometimes even more. The hump is a sexual selection trait - the bigger the hump, the more likely it is that a male will get to mate. While not all pink salmon get a hump that large, the Barry Whites of the humpy salmon world have a great big shoulder boulder that makes the lady fish swoon.
Here’s one of those fishy freaks: www.landbigfish.com/articles/default.cfm?ID=352
OtisRamflow@lemm.ee 6 months ago
Might be exaggerated, but some get pretty crazy looking.
www.adfg.alaska.gov/index.cfm?adfg=wildlifenews.v…
steal_your_face@lemmy.ml 6 months ago
Coho is my favorite
OtisRamflow@lemm.ee 6 months ago
Chinook, looks like hot iron.
Kedly@lemm.ee 6 months ago
Welp, Lemmy’s now able to hug a site to death now too! We did it Lemmy!
Syd@lemm.ee 6 months ago
It’s going strong here. Have you been banned from Alaska recently?
Kedly@lemm.ee 6 months ago
Ah, it works for me now too. I guess it was a short hug of death xD