No, but some species of fish have been nicknamed Lover Fish. It is inadvisable to refer to them as such though since the nickname refers to many different fish.
A lover of beauty is called an aesthete.
A freedom lover is often called a "libertarian" or an "advocate for liberty".
A married man's lover outside of marriage is called a mistress. There is not such a clear cut term for a woman's lover outside of marriage. He may simply be called her lover, he could also be called her boy toy.
Yes, but there are plenty more fish in the sea.
A naturist is someone who could be considered a wildlife lover.
A lover of animals or a person opposed to animal cruelty is called a zoophile.
A lepidoptophile
a collection of fish is called a school of fish
A person who has a Passion for nature is called a nature lover. Also he or she is called a GREEN lover! SPP.
anglophile
film buff
Inspector