@Privateer please tell us more about it. And do you have a working seafood mod?
I'm no plant expert and have never really played a farmer or herbalist to see what all the options 'hooks you can use' are.
Some things that always pushed me away are;
The weights/measures, all items go to food, locations showing 'former' item (picked) and limited 'method(s)' for collection.
Most likely I'm just thinking wrong and so have not had anything I felt deserved to be public beyond bee hives which are modeled on berries, and have leave behind, will be eaten by bears and birds, and produce fistfuls of honey combs.
I do have a functional coastal sea life mod which is modeled on mushrooms to not produce leave behind, produce whole number quantities and generally need to be boiled to be 'fully' safely consumed.