For me, I mostly fish alone. I don't have anyone with me to take a pick of me holding that fish in my eco freindly net getting ready to release it while the majority of the fish is in the water. I have to either hold it up so I can get a pic, or lay it on the ground so I can get the camera out and get that pic.
I release 99.999% of the fish I catch, and If it's a nice fish, I will take a picture of said fish.
I won't lay a fish in the dirt tho. Grass ok. On a rock? Maybe, haven't yet. Leaves? Maybe if it's been reaining. Gravel? Along the stream bank yes, crushed in the driveway, hell no.
As for how to improve the resource? Stay home. Don't fish.