I reached the conclusion that fish have emotions based on personal expieriance and from things I have read and seen:
A few examples are
(1) I had an aquarium with tropical fish, one of the kinds of fish I kept were called "kissing gouramis" to cut a long story short you buy these fish in "pairs" as they "mate" for life and when one died the other was "heart broken" and died soon afterwards.
(2) I have seen very large fish in far too small tanks in pet shops, and they to my eyes at least, look bored and sad, a bit like lizzrads and snakes do when I see them in the same conditions.
(3) I have seen (on tv) a squid flash a whole series of warning and distress signals when hooked.
(4) I have seen small male cuttle fish impersonate female ones to deceive larger male rivals in order to mate with a female*
(5) I have seen a giant octopus mother guard and care for her eggs with more dedication than a lot of birds.**
(6) Many fish return to where they where born/hatched and so must have some sort of knowledge of navigation like homing pidgeons for example.
Here is a segment from a book about fish and emotions:
do fish feel pain? | fishcount.org.uk
here is a scientific paper on fish hunting cooperatively
PLOS Biology: Interspecific Communicative and Coordinated Hunting between Groupers and Giant Moray Eels in the Red Sea
Regarding being emotionaly attached to animals I would have to say that I am, I have had pets and when they died or were ill I was genuinly distressed. Having said that I think humans are top of the food chain and have a "right" and desire to eat animals, but in my opinion only if the animal in question is treated with respect, and not as a walking £ or $ sign.
As for what I eat I would have to say that I am very dependant on dairy products and I will only buy "organic" products I am well aware that the dairy and meat industries go hand in hand (I guess thats why in my earlier post I stated that I was emotionaly biased on this subject because I know I am a hypocrate on this matter but I could not live happily as a vegan)
Lastly just for clarity I would "like" people to buy and eat more responsibly but I do not have the "right" or inclination to tell anybody what is right or wrong for them.
P.s. I am hoping in the near future to read this book "do fish feel pain victoria braithwaite 2010 (Professor of fisheries and biology)
*
Female impersonation as an alternative reproductive strategy in giant cuttlefish
**
The Hardest-Working Mom On The Planet : Krulwich Wonders... : NPR