There seems to be a bug in 1.7 - you cannot loot Salmon, or any third-party critters that use the nonIngredientLootable parameter. Is anybody else seeing this, or is my installation corrupt?

I traced the issue to Critter.psc OnActivate:

  if nonIngredientLootable ; do I have the optional non-ingredient lootable parameter set?   actronaut.additem(nonIngredientLootable, lootableCount)

... the trouble here is that nonIngredientLootable is a FLST, not a FORM. What's weird is that this WAS working just fine until 1.6.xxx or 1.7. Does anybody have a version of the script which actually works (it should be adding the FORMs in the FLST, rather than try to add the FLST itself).

Please just post and tell me if you can or cannot loot salmon... thanks...

I've been looting salmon without any problem under 1.7.

Just tried it and I have no problems with looting and catching any salmon. (Version 1.7.7.0.6)

I strongly suspect a mod is causing your problem.