Can someone explain these circle hook differences?

Circle Hooks

Product Spotlight: Gamakatsu 4X Strong Circle Hooks - The Fisherman

High Quality Commercial Longline 39960 Stainless Steel Big Fish Tuna Circle Fishing Hook - Buy Strong Stainl…

Circle hooks required for recreational shark fishing starting June 22 - The Coastland Times

Legal vs Illegal Circle Hooks: What You Really Need To Know

Can someone explain these circle hook differences?

Circle Hooks vs Octopus Hooks (Similarities and Differences)

Fishing Hooks 101: Parts, Sizes, Types, and More

Some of the hooks used in referenced research. Displayed hooks are

Circle Hooks Vs. J Hooks

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Hook size - J hooks/ Circle Hooks

Why waste hooks?