SPECIES 



SOURCE LEVEL 

 (dB, re 1 MPa @ 1 m) 



REFERENCE 

 FREQUENCY NUMBER 



ODONTOCETE 



Tursiops tnincatus 



217-228 

 175 



Broadband peak-to-peak level of clicks. 

 Broadband peak-to-peak level of clicks. 



40 



41 



Lagenorhynchus australis 



80 



Broadband RMS level of clicks. 



42 



Orcinus orca 



160 



Broadband RMS level of screams (click trains) 



43 



Stenella lognirostris 



108-115 



109-125 



85-95 



Broadband R,S levels of pulse bursts. 



"squeals" 



clicks 



44 



Inia geoffrensis 



165 



Broadband peak-to-peak levels of clicks. 



45 



Phocena phocena 



100 

 140 



Broadband RMS level of clicks. 



Mean and range of peak broadband levels of click. 



46 



43 



Physeter catadon 



135 



173.5 

 171.5(165.5-175.3) 



Peak broadband level of pulses thought to be 

 P. catadon. 



Mean 1 /3-octave level of clicks at 1 kHz. 



Mean and range of broadband level of clicks. 



47 



48 

 49 



MYSTIC ETE 

 Megaptera novaeangliae 



138.6 



148.6 

 155.4(144.3-174.4) 



Mean 1 /3-octave level at 5 kHz. 

 Mean 1 /3-octave level at 1 kHz. 

 Mean and range of broadband levels of various 

 types of signals. 



50 



Eubalaena glacialis 



172-187 



Levels in the 25-2500-Hz band for belch-like sounds. 



51 



Eschrichtius glaucus 



138-152 



Mean broadband levels for several different types of 

 low-frequency signals. Highest level measured. 



52 



Balaenoptera musculus 



159.2 

 188 



Maximum broadband level of clicks. 

 Mean level of moans in a 14-222-Hz band. 



53 

 54 



Balaenoptera physalus 



173-181 



Source level for 20-Hz pulses. 



Source level of 20-Hz pulses thought to be from 

 B. physalus, based on source level calculations 

 as cited in reference. 



55 

 56 



Balaenoptera acutorostrata 



152-6 



Maximum broadband level of cUcks. 



57 



Table 2. Summary of source level data for cetaceans (from reference 39). 



H-19 



