We describe the mating behavior of free-ranging Blacktip Reef Sharks, Carcharhinus melanopterus, at Palmyra Atoll. This is the first primary report of mating in C. melanopterus and the first direct observation of mating for an obligate swimming shark species. Similar to that in other nonobligate swimming shark species, mating in C. melanopterus was characterized by multiple males following a si...

to investigate the optimum conditions for extracting gelatin from whitecheek shark (carcharhinus dussumieri (skin, response surface methodology (rsm) has been adopted. in this research, the effect of naoh concentration (0.01-1 n), hcl concentration (0.01-1 n), and extraction time (3-8 h) on dependent variables, yield and melting point of the skin gelatin have been studied using central composit...