Data sources

• Main Author: Armelle Jung
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: KEY WORDS Porbeagle shark; biological sampling; catch composition; drifting longline; targeted fishery; Northeast Ocean; Tac; Lamna nasus; Northeast Atlantic; Porbeagle
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.4256; http://www.iccat.int/documents/meetings/docs/scrs/scrs-08-152_jung.pdf

A population of porbeagle sharks (Lamna nasus) from the Northeast Atlantic Ocean bears a targeted fishery since the 60’s. This seasonal and traditional drifting longline activity reveals decreasing landings for 15 years. A first TAC was introduced last December based on international scientific advice considering the life history of porbeagle shark and the lake of reliable information available. In 2008, a cooperative research program called EPPARTIY was initiated by the French National Fishery Committee (CNPMEM), the Association pour l’Etude et la Conservation des Sélaciens (APECS) and the commercial fishery to collect scientific basis for the stock evaluation. EPPARTIY gather various data by onboard observers and fish market landings such as length-weight, sex maturation, geographical distribution; long term series statistic of landings and logbook as well as biological samples (stomach contents, gonads, muscle, vertebrae and liver) in order to improve biological knowledge of the exploited population. CPUE by fishing trip is relatively constant (oscillating between 6 and 10 tons) but proportion of small porbeagle landed increases. Preliminary proposal to manage the fishery is presented.