WebbMarine Mammals and Noise. Pay-walled Book 1995 Academic Press Richardson, J., Greene, C.R., Malme, C.I. and Thomson, D.H. Many marine mammals communicate by emitting sounds that pass through water. Such sounds can be received across great distances and can influence the behavior of these undersea creatures. Webb22 okt. 2013 · The baseline of ambient noise, the sounds produced by machines and mammals, the sensitivity of marine mammal hearing, and the reactions of marine …
Marine Mammals and Noise Request PDF - ResearchGate
WebbFig. 1. (A) Phocoena phocoena; (B) Tursiops truncatus; (C) Phoca vitulina. Audiograms of harbor porpoise, bottlenose dolphin and 3 harbor seals, and ambient third-octave sound … WebbEstimates made by Cummings and Thompson (1971) and Richardson et al. (1995) suggest that source level of sounds made by blue whales are between 155 and 188 decibels with reference to one micropascal metre.All blue whale groups make calls at a fundamental frequency of between 10 and 40 Hz, and the lowest frequency sound a human can … fintree login learning management
(PDF) Effects of Noise on Marine Mammals - ResearchGate
WebbAccording to the National Environmental Policy Act of 1969 (NEPA), there are major implications with regard to noise and its effects on marine mammals. ... Richardson, W. 1995. Marine Mammals and Noise. California: Academic Press. Ridgway, S., R. Harrison. 1989. Handbook of Marine Mammals. WebbAccess full book title Technical Aspects Of Sound Vol 3 Recent Developments In Acoustics by E. G. Richardson. Technical Aspects Of Sound Vol 3 Recent Developments In Acoustics eBook . ISBN: Author: E. G. Richardson Format: PDF, ePub, Mobi Category: ... Release: 1995 Language: en View WebbDescripció. Comparada amb la resta de foques, la foca comuna és petita: els mascles assoleixen una longitud d'1,4-1,9 metres i pesant fins als 140 kg. Les femelles fan 1,2-1,7 metres de llargada amb un pes de 45 a 80 kg.; Cos rabassut, membres curts i cap força gros, amb el nas allargat.; Pell de color groguenc o grisenc, amb taques blanquinoses i … essential booster gold comics