From left, circle, J and tuna hooks, three hook shapes commonly used in

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

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What is the best hook to use for catch and release fishing? - Quora

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Hsiang-Wen HUANG, Professor (Associate), PhD, National Taiwan University, National Taiwan Ocean University, Keelung, ntou, Institute of Marine Affairs and Resource Management

Circle hook - Wikipedia

Hsiang-Wen HUANG, Professor (Associate), PhD, National Taiwan University, National Taiwan Ocean University, Keelung, ntou, Institute of Marine Affairs and Resource Management

How to choose the right fishing hook: J-hooks, circle hooks, barbed v barbless, and everything else you need to know

Stellar UltraPoint Wide Gap Offset 1/0 J-Hook (6 Pack), for Catfish, carp, Bluegill to Tuna

Hooks used for the study-14/0 circle hook (left) and 3.5 Japanese tuna

Choosing the Right Fishing Hook - Island Fisherman Magazine