Effects of Circle Hooks on Sharks and Rays – IATTC Review
In March of this year, the 1st Circle Hook Workshop of the Inter-American Tropical Tuna Commission (IATTC) commenced. The goal was to analyze “scientific information regarding different circle hooks sizes and their effectiveness at mitigating bycatch and target species with the specific goal of defining the characteristics of an adequate hook for the purpose of mitigating bycatch of sea turtles in accordance with Resolution C-19-04.” In other words, which hook type and size is the most effective at reducing the catch of unwanted species for pelagic longline. Various experts were invited to present their findings on the impacts
Publication from North Carolina State Questions Atlantic Blue Marlin Post Release Survival
A science paper published in the Journal of Aquatic Animal Health, written by E. Houck et al., from North Carolina State University in the College of Veterinary Medicine and the Center for Marine Science & Technology, raised questions whether skeletal injuries caused by recreational fishing tackle could decrease post-release survival in Atlantic blue marlin. Skeletal injuries in the jaw area of 6 blue marlin caught with artificial lures and J-hooks and landed in the 2019 Big Rock Blue Marlin Tournament were examined. The conclusion, it was “suspected” that the hook injuries to the jaw had little impact on post-release
Tag Card Completion Guide
The Tag & Release Program is the cornerstone conservation program of The Billfish Foundation. Created in 1990, it was established to remedy the large gaps in knowledge of billfish life history. As a result, it has created the largest private billfish tagging database in the world, with over 270,000 records. The Tag & Release Program relies on Captains, anglers, and mates across the world to tag, release, and recapture billfish. It is a global citizen science effort that relies on the collective dedication of thousands of participants. However, it is not enough just to tag or release
2020 Conservation Record: Blue Marlin
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 1,263 were of blue marlin. Like with sailfish, there is some debate on the difference between Atlantic and Indo-Pacific blue marlin. Makaira nigricans refers to Atlantic blue marlin, while Makaira mazara are Indo-Pacific. Blue marlin can measure up to 2,000lbs and 12ft long. Like other species of billfish, the Indo-Pacific blue marlin tend to be larger
2020 Conservation Record: Sailfish
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 2,908 were of sailfish. Sailfish (Istiophorus platypterus/albicans) are native to the Atlantic, Pacific, and Indian Oceans. Istiophorus albicans refers to the Atlantic sailfish, while Istiophorus platypterus refers to the Indo-Pacific sailfish. However, many use Istiophorus platypterus for both, as there is little difference between the two aside from size and location. Here, The Billfish Foundation also
2020 Conservation Record: Striped Marlin
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 1,963 were of striped marlin. Striped marlin (Kajikia audax) are native only to the Pacific and Indian Oceans. They can grow up to 12ft long and over 450lbs. Information on how to identify a striped marlin can be found on our youtube channel. Thank you to everyone that tagged and released striped marlin last year
2020 Conservation Record: White Marlin
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 270 were of white marlin. White marlin (Kajikia albida) are native only to the Atlantic Ocean. They are often confused with roundscale spearfish (Tetrapturus georgii) as the two species appear nearly identical. For that reason, most regulatory agencies combine their management. Because of this, and because identification between the two is unreliable, TBF also combines the
2020 Conservation Record: Swordfish
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 169 were of swordfish. Swordfish (Xiphias gladius) are the only billfish species of the family Xiphiidae (as opposed to Istiophoridae). They are native to all oceans, but the vast majority of our records originate in the Atlantic. Information on how to identify a swordfish can be found on our youtube channel. Thank you to everyone that tagged
2020 Conservation Record: Black Marlin
The Billfish Foundation maintains the largest private tag and release database in the world, with 260,000 records by 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 74 were of black marlin. Black marlin (Istiompax indica) are one of our lesser reported species and are native only to the Pacific and Indian Oceans. They are one of the largest species of billfish, with records up to 15ft long and 1,600lbs. Information on how to identify a black marlin can be found on our
2020 Conservation Record: Spearfish
The Billfish Foundation maintains the largest private tag and release database in the world, with over 260,000 records by over 150,000 anglers. In 2020 alone, TBF anglers and captains tagged, released, or recaptured 7,000 billfish and tuna across the world. Of these 7,000 new records, 44 were of spearfish. Spearfish are the least represented billfish in the TBF dataset, making every new report that much more important. Thank you to everyone that tagged and released spearfish last year. Click here for information on our Tag and Release Program and here to purchase tagging equipment and other TBF items
