Lateral view of 9/0 J-hook, 3.6 sun Japanese tuna and 18/0 circle hooks

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

Rite Angler Stainless Steel 2X Ringed Circle Tuna

Lateral view of 9/0 J-hook, 3.6 sun Japanese tuna and 18/0 circle

Trident Hook J-Circle wide gap hook for fresh and salt water-JK

Fudo Super Ocean Tuna Ringed Eye Hooks - Melton Tackle

Lateral view of 9/0 J-hook, 3.6 sun Japanese tuna and 18/0 circle

Fudo Super Ocean Kona Cut Needle Eye Hooks - 2 Pack - 10/0

PBA Japanese Tuna Hook - Portland Bluefin Adventure

Package:80pcs, 6 sizes to meet your need. SILANON Tuna Circle Hook Get ready for your next fishing trip, and make sure your tackle box is full of useful fishing accessories, try out this tuna circle fishing hooks. This stainless steel fishing hooks set is all you need for a successful day out on the water, catching all kinds of squid with friends or family. SILANON is here to help you catch more fish and have a more enjoyable time on the water.

Tuna Circle Hooks, Stainless Steel Catfish Circle Hooks Saltwater 2x Strong Short Shank Big Game Hooks for Catfish Bass Tuna Size 8/0-18/0

FUDO Tuna Ringed Eye Hooks are true “J Hooks” that provide more open throat and grasp than that of the Southern Tuna style. These are versatile hooks that provide great performance when trolling or fishing bait for large gamefish.

Fudo Hooks - Super Ocean Tuna Needle Eye Hooks 8/0 - 2pk

Total catch (number caught) by hook type (18/0 circle hook vs. 3.6

FUDO Tuna Ringed Eye Hooks are true “J Hooks” that provide more open throat and grasp than that of the Southern Tuna style. These are versatile hooks that provide great performance when trolling or fishing bait for large gamefish.

Super Ocean Tuna Ringed Eye Hooks 8/0 (2 Pack)

Sturgeon biodiversity and conservation

Fishing Hooks Tuna Circle Hook - 80pcs Stainless