论文信息 - NEW DATA ON THE RATIO BETWEEN FIN AND BODY WEIGHTS FOR SHARK SPECIES CAUGHT BY THE PORTUGUESE SURFACE LONGLINE FLEET

NEW DATA ON THE RATIO BETWEEN FIN AND BODY WEIGHTS FOR SHARK SPECIES CAUGHT BY THE PORTUGUESE SURFACE LONGLINE FLEET

In past years there has been a debate regarding the ratios between fin and body weight for sharks. This debate has been particularly important in Europe where a 5% value was implemented by EC in 2003. Herein we report new data on the conversion rates for four pelagic shark species (BSH-Blue shark, Prionace glauca; FAL-Silky shark, Carcharhinus falciformis;OCS-Oceanic whitetip shark, Carcharhinus longimanus; SPZ-Smooth hammerhead shark, Sphyrna zygaena) caught in the equatorial area of the Atlantic Ocean (between 5oN and 5oS) by the Portuguese longliners targeting swordfish.

M. N. Santos | Alexandra Garcia

[1] Enric Cortés,et al. PRELIMINARY REASSESSMENT OF THE VALIDITY OF THE 5% FIN TO CARCASS WEIGHT RATIO FOR SHARKS , 2006 .

[2] M. N. Santos,et al. FACTORS FOR CONVERSION OF FIN WEIGHT INTO ROUND WEIGHT FOR THE BLUE SHARK (PRIONACE GLAUCA) , 2005 .

[3] B. García-Cortés,et al. PRELIMINARY RELATIONSHIPS BETWEEN THE WET FIN WEIGHT AND THE BODY WEIGHT OF SOME LARGE PELAGIC SHARKS CAUGHT BY THE SPANISH SURFACE LONGLINE FLEET , 2004 .