Scientists fromSyracuse University in New Yorkhope the unique vocal characteristics establish in North Atlantic right whales could help in conservation efforts of the endangered mintage .
When you find fault up the phone , it ’s easy to tell the difference between your dad ’s and mama ’s part . The source - filter surmisal , which was project for human speech , suggest that sound author meld independently to make distinct vocals . investigator applied the same hypothesis to the endangered North Atlantic veracious whales and studied a combining of vocal feature — such as the distance of their birdcall and the fundamental and harmonic frequencies . The study , which will be presented at the169th meeting of the Acoustical Society of America , found that 13 different whales could be pinpoint from the individual vociferation they made .
North Atlantic right whales make a range of dissimilar call , such as the ' gunshot ' sound made by a lone adult male and the ' scream ' call produced by females . Researchers specifically analyzed the ‘ upcall ’ of the North Atlantic right whale , which is a type of call largely used to let other hulk bonk of their presence and to check in with them . The upcall is produced by both male person and females , and can be bring forth by a range of old age grouping . ResearchersJessica McCordicand professorSusan Parksstudied over a decade of file away acoustic datum , which were garner from suction loving cup sensors attached to North Atlantic right whales .
McCordicsaysshe did n’t find much of a sport in the consonant frequency of the upcalls , but instead " one of the variables that came out as most crucial in discriminating the individual was the duration of the call . ”
" The depth psychology sort out the hulk well above prospect level , so that was really exciting , " sheadds .
Researchers hope to use the same approach to identify North Atlantic right heavyweight in the wild , which could help with conservation effort . The North Atlantic right giant are one of the most endangered of all large whales , agree to theWorld Wildlife Fund . Researchers reckon the current universe , which has remained critically endangered since protective measure were put in place in the 1930s , to be around 450 hulk . The North Atlantic right whale is peculiarly vulnerable to ship hit and getting snarl in fishing equipment .
