Resumen del producto

Hundreds of satellite popup tags have been deployed on striped marlin, blue marlin, black marlin, White marlin and sailfish with exceptionally high premature tad shedding rates. The longest DAL for PAT tags on billfish are as follows: sailfish: 135 days; blue marlin 334 days; black marlin 211 days; striped marlin 259 days; and white marlin 150 days. These “record” DAL are exceptions; the vast majority of billfish PAT tag datasets are much shorter. For example, two of the most comprehensive PAT tagging studies involved striped marlin (n=245) and black marlin (n=67); the average DAL for striped marlin was 49 days with 6% remaining on the fish for the programmed duration, and the DAL for black marlin was 55 days, with 13% remaining on the fish for the programmed duration. Identifying migratory pathways, potential spawning areas and the stock structure is possible with such short tag retention. In an attempt to advance the study of billfish, we implanted 99 archival tags into the peritoneal cavity of striped marlin (Kajikia audax). Despite problems with tag failure, pour results blaze a path for the future of billfish research.

Palabras clave: Tagging; billfish; archival tags

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