Mechanical properties of sand tiger shark (Carcharias taurus) vertebrae in relation to spinal deformity

2013 ◽  
Vol 216 (22) ◽  
pp. 4256-4263 ◽  
Author(s):  
D. R. Huber ◽  
D. E. Neveu ◽  
C. M. Stinson ◽  
P. A. Anderson ◽  
I. K. Berzins
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Tania Monreal‐Pawlowsky ◽  
Susan M Thornton ◽  
Mark Frederick Stidworthy ◽  
Paul Hale

2016 ◽  
Vol 47 (1) ◽  
pp. 351-353 ◽  
Author(s):  
Daniela Florio ◽  
Stefano Gridelli ◽  
Maria Letizia Fioravanti ◽  
Renato Giulio Zanoni

2014 ◽  
Vol 65 (8) ◽  
pp. 674 ◽  
Author(s):  
M. S. Passerotti ◽  
A. H. Andrews ◽  
J. K. Carlson ◽  
S. P. Wintner ◽  
K. J. Goldman ◽  
...  

Bomb radiocarbon analysis of vertebral growth bands was used to validate lifespan for sand tiger sharks (Carcharias taurus) from the western North Atlantic (WNA) and southwestern Indian Oceans (SIO). Visual counts of vertebral growth bands were used to assign age and estimate year of formation (YOF) for sampled growth bands in eight sharks from the WNA and two sharks from the SIO. Carbon-14 results were plotted relative to YOF for comparison with regional Δ14C reference chronologies to assess the accuracy of age estimates. Results from the WNA validated vertebral age estimates up to 12 years, but indicated that ages of large adult sharks were underestimated by 11–12 years. Age was also underestimated for adult sharks from the SIO by 14–18 years. Validated lifespan for C. taurus individuals in the present study reached at least 40 years for females and 34 years for males. Findings indicated that the current age-reading methodology is not suitable for estimating the age of C. taurus beyond ~12 years. Future work should investigate whether vertebrae of C. taurus record age throughout ontogeny, or cease to be a reliable indicator at some point in time.


2015 ◽  
Vol 66 (2) ◽  
pp. 158 ◽  
Author(s):  
Shara M. Teter ◽  
Bradley M. Wetherbee ◽  
Dewayne A. Fox ◽  
Chi H. Lam ◽  
Dale A. Kiefer ◽  
...  

Globally, population declines for the sand tiger shark (Carcharias taurus) have resulted in calls for informed management of populations, including in the western North Atlantic, where they have been listed as a Species of Concern by NOAA Fisheries. However, information on movements and habitat use, critical for informed management of this sand tiger population, is limited. We investigated horizontal and vertical movements of sand tigers along the US east coast using pop-up archival satellite transmitters, supplemented by acoustic telemetry. Thirteen sand tiger sharks were tagged with satellite and acoustic transmitters in Delaware Bay in late August and early September 2008. Ten of these provided satellite data for horizontal tracks using a Kalman filter. Males left Delaware Bay in autumn and moved south along the continental shelf until reaching waters off North Carolina. Females moved east to waters near the edge of the continental slope. Average depth of males was positively correlated with shark size. All individuals spent at least 95% of their time in waters of 17–23°C. Sand tiger sharks appear most susceptible to fisheries in November and December. Slight expansion of the boundaries and timing of an existing shark-directed bottom longline area closure would likely reduce by-catch of sand tiger sharks and enhance recovery of the stock.


2019 ◽  
Author(s):  
Joshua K. Moyer ◽  
Stephanie F. Shannon ◽  
Duncan J. Irschick

Zoo Biology ◽  
2020 ◽  
Vol 39 (5) ◽  
pp. 355-363
Author(s):  
Jennifer Wyffels ◽  
Chris Coco ◽  
Chris Schreiber ◽  
Daniel Palmer ◽  
Tonya Clauss ◽  
...  

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