In May 2007, the 5-foot, 94-pound shark died of stress-related complications related to her unknown pregnancy after undergoing a yearly checkup. The 10-inch shark pup was found during a necropsy of Tidbit, surprising aquarium officials. They initially thought the embryonic pup was either a product of a virgin birth or a cross between the blacktip and a male of another shark species which has ne...

Recreational fisheries management has traditionally been more concerned with quantifiable, catch-centric goals than angler-centric perceptions. However, the attitudes of fishers affect their behavior, which can alter the effort they make towards conservation actions, and ultimately, the outcome for exploited or threatened species. We conducted a quantitative human dimensions study into the driv...

Sharks play a vital role in the health of marine ecosystems, but the potential threat that sharks pose to humans is a reminder of our vulnerability when entering the ocean. Personal shark deterrents are being marketed as the solution to mitigate the threat that sharks pose. However, the effectiveness claims of many personal deterrents are based on our knowledge of shark sensory biology rather t...

Tiger Shark is a scalable, parallel file system designed to support interactive multimedia applications, particularly large-scale ones such as interactive television (ITV). Tiger Shark runs under the IBM AIX® operating system, on machines ranging from RS/6000 desktop workstations to the SP2® parallel supercomputer. In addition to supporting continuous-time data, Tiger Shark provides scalabilit...

Several factors that influence the evolution of the unusual head morphology of hammerhead sharks (family Sphyrnidae) are proposed but few are empirically tested. In this study we tested the 'enhanced binocular field' hypothesis (that proposes enhanced frontal binocularity) by comparison of the visual fields of three hammerhead species: the bonnethead shark, Sphyrna tiburo, the scalloped hammerh...

The teeth of the Great White Shark have been examined to ascertain whether there is any commonality in the arrangement or number of the marginal serrations (peaks) or, indeed, whether individual sharks have a unique pattern of shapes or size of the peaks. The teeth of the White Shark are characteristic in size and shape with serrations along almost the entire mesial and distal margins. This stu...

objective(s) shark liver oil (slo) is an immunomodulator. macrophages play a key role in host defense against pathogens like fungi. candida albicans have mechanisms to escape immune system. we determined the effect of killed-candida on the in vitro viability of macrophages and the effect of slo on augmentation of this potency. materials and methods peritoneal macrophages were separated and cult...

This is part of an occasional series that recalls some of the stories reported 10 years ago in the News section of the Journal. This September, results of a phase III study of the shark cartilage extract AE-941 (Neovastat) suggested no benefit of the product on overall survival of patients with renal cell cancer. The findings come as a disappointment to researchers in a field plagued by negativ...

This report presents descriptive statistical summaries and generalized linear model (GLM) analyses of catch data for oceanic whitetip shark Carcharhinus longimanus and silky shark C. falciformis in the Hawaii-based pelagic longline fishery. This paper is a collaborative effort begun at the Secretariat of the Pacific Community (SPC) in New Caledonia and completed at the NOAA Fisheries Pacific Is...

The risk of predation by sharks is considered to have a strong influence on dolphin behavior, especially group formation and habitat use (Heithaus 2001a). Although evidence of shark attacks on dolphins abounds (in the form of shark bite scars, shark stomach contents, etc.), there have been no published reports in which researchers have directly observed a shark attack on a dolphin in the wild. ...