Blue Marlin Conservation Record 2019
The Billfish Foundation maintains the largest private tag and release database in the world, with over 260,000 records. In 2019 alone, over 11,000 new tag, release, and recapture records were added to this database, representing an enormous amount of data to help us learn more about billfish life history. Of these over 11,000 new records in 2019, 2,079 were of blue marlin, including 12 blue marlin recaptures. 47.6% of blue marlin were released without tags, while 52.4% were tagged. To learn more about how to identify a blue marlin, check out our youtube channel! 1,084 blue marlin were tagged
TBF’s Top Achievements in 2019
With the year coming to a close, we thank you for your support, as we reflect on key achievements in 2019. Please consider joining TBF, if not already on board, or make a tax free year-end donation to support our critical billfish work. You can follow us on social media @thebillfishfoundation and be sure subscribe to our free monthly newsletter to stay updated on the latest billfish
2019 Tag & Release Competition Winners
Each year The Billfish Foundation recognizes the best of the best in the billfishing community to acknowledge the significant effort they contribute to our Tag & Release Program and billfish conservation. Since its inception in 1990, the program has grown to accrue over 260,000 tag and release records to become the largest private billfish tagging database in the world. In the last year alone, TBF has collected over 11,000 records! The information gathered through tag and release efforts is invaluable to increase our understanding and better our management of billfish and preserve the sport we love. This is only possible
Blue Marlin Satellite Tagging in the Gulf of Mexico
Because overfished Atlantic marlin receive no government research funding priority, large data gaps relating to their life history characteristics remain. Satellite tagging provides a means to fill some of the data gaps by recording a marlin’s location and movement in the water column, both horizontal and vertical. Each tag records variables in sunlight levels, water temperature and pressure that is converted to location and movement. Movement data then provides insight to such elements as whether oil rigs, which serve as large Fish Aggregation Devices (FADs), modify marlin movements and whether marlin remain in the region all year because
Updated English and Spanish Atlantic HMS Compliance Guides
NOAA Fisheries has released updated compliance guides for recreational fishing of highly migratory species in the Atlantic Ocean. These guides include detailed anatomical figures, identification charts, and species-specific bag limits, landing information, and reporting requirements. The guides also include information on permitting, gear restrictions, sale restrictions, chartering, and tournaments. We recommend fishers keep copies of this guide on hand (either printed out or on their phones) when they’re out fishing. This way, you can ensure that you’re following all the necessary regulations to ensure that billfish and other highly migratory species are around for generations to come. A summary
New NMFS Initiatives Benefit Longlines and Harm Recreational Community
The National Marine Fisheries Service (NMFS) is proposing initiatives that once again ignore the recreational fishing community and do not benefit billfish conservation. NMFS seeks to reinvigorate commercial catch by loosening regulations on the longline fishery. This comes despite the fact that NMFS scientists and scientists of the International Commission for the Conservation of Atlantic Tunas (ICCAT) have made it clear that fishing pressure must be reduced on overfished marlin and other species – or to use a precautionary fishing approach. These new adjustments are irresponsible and show a true lack of regard for our community, the economic capacity
New Blue Marlin Study Illuminates Age-Length Relationship
A new TBF-supported study out of the University of Miami made great strides in understanding the relationship between age and growth of Atlantic blue marlin. The study examined growth annuli in anal fin spines of 1,638 blue marlin caught as bycatch in Venezuela to determine the age of each fish. Growth annuli are small rings inside of the fin spine that increase in number as the fish ages, much like the rings in a tree trunk. They then correlated this age information to the lower jaw fork length (LJFL) to determine how well LJFL predicts fish age. The study found
Satellite Tagging Expedition – Gulf of Mexico Blue Marlin
TBF’s most recent satellite tagging expedition kicked off with a fantastic crowd all interested in learning more about blue marlin in the Gulf of Mexico and how to help with tag deployment. Tag program sponsors Costa and Yeti actively participated and had a videographer capture all the action. The New Orleans Big Game Fishing Club provided the perfect location and libations at its new Club House within the confines of the Cypress Cove Marina and Lodge’s property. An over-the-top seafood extravaganza was sponsored by the Louisiana Seafood Board, thanks to Lt. Governor Billy Nungesser and the Cypress
2018 Recreational Atlantic Billfish Landings Updates
The table below provides the total number of billfish (January 1, 2018, through, December 31, 2018) landings in numbers of fish for Atlantic blue and white marlin,
Counting Blue Marlin in the Ocean
How many blue marlin are in the ocean? Counting them isn’t exactly feasible (though you could have fun trying!) so scientists rely on catches and how much effort these catches took over the years. This is called a catch per unit effort (or CPUE) index. But how do you measure effort? And what if the effort has changed over time? Or if the fish moved because the environment changed? To help deal with these challenges, scientists use standardization methods to smooth out changes in fishing gear or the environment. The standardized CPUE index shows the trend of the fish
