Iberian Peninsula: Purchase via Kilo
Considering, fresh fish is a hell of a lot cheaper than beef or lamb or game ( feathered varieties and hoof varieties ) here.
Scorpio is on sale at 5.90 a kilo ... the regular price for Norwegian salmon is between 8.95 and 9.95 a kilo standard ... Calamar ( squid ) is about 5 Euros a kilo and sometimes less when in season.
Filet of sole on the other hand is on pricey side, as it is caught off southern Ireland, 14 Euros a kilo.
$ 1.33 USD = 1 Euro ( I check monthly, so last time I checked )
Sea Bream called Besugo is expensive due to small catch, about 22 Euros a kilo. Fresh Cod fish is 8 Euros a kilo. Mussels are real cheap in season, they go for 3 Euros a kilo ... Clams 8 to 10 Euros a kilo ... Fresh Sardines are cheap too, 3 to 4 Euros a kilo ...
Grouper or Ma hi Ma hi are both lovely for your soup as it is firm and white ... Grouper runs about 8 to 10 Euros a kilo depending on season.
We do not have Mahi Mahi here ... however, we have Hake which is similar ...