Why writing about such a theme? Well for me the answer is simple and clear!
Releasing and handling fish is something that should be done with care and respect!
Then GOD said, “Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground.” Genesis 1:26
These words are very clear and ruling doesn't mean disrespecting something! If men do not respect men, how can they respect nature?