I see in the news people who want to be viewed as "likeable" bragging they release the big fish they catch. I challenge each of them to point to this being done in the Bible. Jesus' followers were fishermen who ate or sold the fish they caught.
Releasing fish promotes the message the fish are more important than the fisherman. Anyone who reads the Bible has seen Gen. 1: 26-28. It tells us God gave man dominion over animals. Hear is advice to catch and release fishermen: STOP IT.
Catch and Release Fishing - Fish & Fishing (U.S. National Park Service) (nps.gov)
Isaiah 24:1-3 Behold, the LORD maketh the earth empty (2)...as the taker of usury, so with the giver of usury to him. (3) The land shall be utterly emptied, and utterly spoiled: for the LORD hath spoken his word.