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Billfish Working Group
General Information

The ISC Billfish Working Group (BILLWG) provides scientific information on the current status and estimates of future trends in abundance and productivity of billfishes in the North Pacific Ocean to resource managers. This information provides the technical basis for setting annual fishery catch quotas and other management measures that are intended to optimize yield from the fishery while avoiding overfishing and ecosystem harm. The BILLWG focuses on conducting stock assessments for striped marlin (Kajikia audax), blue marlin (Makaira nigricans), and swordfish (Xiphias gladius).


Target Species Information

Striped Marlin (Kajikia audax)
Swordfish (Xiphias gladius)
Blue Marlin (Makaira nigricans)


Latest Stock Assessment

Click here to see the information.



Working Group Reports and Working Papers

Honolulu, USA (January 1999)
Nagasaki, Japan (January 2002)
Honolulu, USA (January 2004)
Honolulu, USA (January 2004)
Shizuoka, Japan (August 2005)
Honolulu, USA (November 2005)
La Jolla, USA (March 2006)
Shizuoka, Japan (November 2006)
Taipei, Chinese-Taipei (March 2007)
Busan, Korea (July 2007)
Honolulu, USA (January 2008)
Abashiri, Japan (June 2008)
Honolulu, USA (February 2009)
Busan, Korea (May 2009)
Honolulu, USA (November 2009)
Hakodate, Japan (April 2010)
Victoria, Canada (July 2010)
Honolulu, USA (January 2011)
Chinese-Taipei (May 2011)
Honolulu, USA (December 2011)
Shanghai, China (April 2012)
Honolulu, USA (January 2013)
Shizuoka, Japan (May 2013)
Honolulu, USA (February 2014)
Honolulu, USA (January 2015)
Yokohama, Japan (April 2015)
Honolulu, USA (January 2016)



Working Group Chair
  Jon Brodziak