NOAA Technical Memorandum NMFS - Southwest Fisheries ...

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Figure 8. Regression plot of original angle vs. original distance (nmi) for all acoustic detections from the combined cruises. The regression was not significant (p = 0.76, n=1,527). Number of Detections 200 180 160 140 120 100 80 60 40 20 0 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100 Original Angle 36 Acoustic Detection Acoustic and Visual Detection 100 - 110 110 - 120 120 - 130 130 - 140 140 - 150 150 - 160 160 - 170 170 - 180 Figure 9. The number of acoustic detections within a given range of original angles for all cruises combined. Detections made by acoustic methods (only) are shown in black; detections made using both acoustic and visual methods are shown in gray.
Figure 10. Regression plot of the acoustic detection distance (nmi) of dolphin schools vs. sea surface temperature (°C) for the STAR 00 survey. The thermocline depth explains 0.9% of the variation in the detection distance (R 2 =0.009), which is not significant (p = 0.072, n=347). Figure 11. Regression plot for acoustic detection distance (nmi) of dolphin schools vs. thermocline strength (°/m) for the STAR 00 cruise. The thermocline strength explains 3.1% of the variation in detection distance (R 2 = 0.034); which is significant (p = 0.001, n=347). 37
Page 1 and 2: U N I R A P E D T T E M D S E N TA
Page 3: C O L A N IO T A N U N C I EA .S. D
Page 6 and 7: LIST OF TABLES Table 1. Acoustics p
Page 8 and 9: LIST OF FIGURES, con’t Figure 17.
Page 11 and 12: ACOUSTIC STUDIES OF MARINE MAMMALS
Page 13 and 14: transit to and from San Diego, Cali
Page 15 and 16: VHF radio and received using a modi
Page 17 and 18: acoustic detection distance of sper
Page 19 and 20: significantly larger than the mean
Page 21 and 22: vocalizations detected by the acous
Page 23 and 24: were less likely to be detected by
Page 25 and 26: pilot whale (n = 4), common bottlen
Page 27 and 28: species over long ranges, at night,
Page 29 and 30: VII. LITERATURE CITED Au, D., and W
Page 31 and 32: detection and satellite-tracking le
Page 33 and 34: Table 2. Hydrophone array character
Page 35 and 36: Table 5. Summary statistics for aco
Page 37 and 38: Table 9. Number of sightings and th
Page 39 and 40: Table 11. Number of schools from wh
Page 41 and 42: Table 13. Number of sonobuoys deplo
Page 43 and 44: M icrophone Hydrophones 1 2 3 4 5 6
Page 45: Figure 6. Regression plot of the ac
Page 49 and 50: Figure 14. Map of study area and mi
Page 51 and 52: Figure 18. Map of study area and fa
Page 53 and 54: Figure 22. Map of study area and Fr
Page 55 and 56: Figure 26. Map of study area and bo
Page 57 and 58: Figure 30. Map of study area and pi
Page 59 and 60: Figure 34. Map of study area and no
Page 61 and 62: Figure 38. Regression plot of the r
Page 63 and 64: VIII. APPENDICES A. Publications Ap
Page 65 and 66: Oswald, J. N. 2006. An examination
Page 67 and 68: Ocean and the Mediterranean Sea. Se
Page 69: RECENT TECHNICAL MEMORANDUMS SWFSC

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