This study evaluates multi-year underwater visual, photographic and video data of bull sharks C. leucas from a shark feeding site in a marine protected area in Fiji.
The numbers follow an upward trend of attacks that scientists at the the university's International Shark Attack File, which collects and analyzes data on shark attacks, say is due to greater interaction between humans and sharks in the water. .
Prior to analysis, data on shark observations between 06:00 and 16:00 hours were standardized by dividing the number of sharks observed by the total camera deployment time (per 30 minute time interval), and expressed as number of sharks, per time interval, per 720 minutes (due to small frequency values for shorter time blocks, a 12-hour block was selected for analysis).
However, in this study such a technique is unavailable because size data of adult sharks is limited to length only; length-to-weight standards exist only for juvenile age classes (Gruber, unpublished data).
Evidence: The World Food and Agriculture Organisation's global database of fish capture records data for shark landings by country.
The sequence of the previously identified regulatory sequence URE2 from the mouse was blasted against the 1.4 × coverage survey-sequencing data of the elephant shark genome [ 38].
According to data collected by WildAid, sales of shark fin in Guangzhou, considered to be the centre of the shark fin trade in China, have dropped by 82%.
Google is going to great lengths to reinforce some of the world's undersea data cables after a series of shark bites, a product manager has revealed.
Here, we have synthesized the first global shark diversity pattern from a new database of published sources, including all 507 species described at present, and have identified hotspots of shark species richness, functional diversity and endemicity from these data.
