76 



Fishery Bulletin 101(1) 



-38° 



•34" 



26' 



84° 



80° 



100 



76° 

 200 300 



400 km 



Figure 1 



Sample collection sites and distribution by area (roughly equivalent to 

 state borders) for R. terraenovae collected during this study, 1997-99. (D) 

 represents locations where one or more R. terraenovae were captured. 

 (A) = 13 males (694-793 mm PCL); (B) = 52 females (215-786 mm PCD, 

 51 males (200-765mm PCL); (C) = 497 females (197-813 mm PCL), 

 441 males (225-828 mm PCL); (D) = 8 females (302-763 mm PCL), 7 

 males (320-658 mm PCL I; (E) = 6 females (335-738 mm PCL), 16 males 

 (271-720 mm PCL). 



vessels (16%), rod and reel (12'7( ), gill net (39^ ), and other 

 miscellaneous gear types (2%). 



Following capture, the sex of each specimen was deter- 

 mined and the specimen was weighed (to the nearest 0.1 

 kg), evaluated for sexual maturity, and its body length was 

 measured. Four body length measurements (to the nearest 

 mm) were taken from each individual: precaudal length 

 (PCL, measured from the tip of the snout to the anterior 

 termination of the precaudal pit), fork length (FL), natu- 

 ral total length (NTL, measured with tail in a "natural" 

 swimming position (Parsons, 1985]), and total length (TL, 

 measured with dorsal portion of tail bent parallel to the 

 body axis). Unless otherwise noted, precaudal lengths are 

 used throughout this study. Regression relationshiijs of 



TL, NTL, and FL on PCL were derived to facilitate com- 

 parison with other studies. 



The claspers of males were measured from the clasper 

 tip to the anterior termination of the vent. The siphon sac 

 was measured from the base of the clasper fin (where the 

 sac originates) to the anterior termination of the sac. The 

 condition of the seminal vesicles was also recorded. Male 

 maturity was indicated by calcification of the claspers and 

 the presence of a fully formed siphon sac (Clark and von 

 Schmidt, 1965; Parsons, 1983b). Gonadosomatic indices 

 (GSIs, Parsons, 1983b) were calculated for male sharks 

 with the formula 



GSl = gonad weight (g)/hody tveight (g) x 100. 



