TABLE 1. Relative abundance and distribution of identified humpback whales in southeast Alaskan waters 1967-79[a]
| Year | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 |
| Glacier Bay | 20 | 20 | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 25 | 25 | 19/3[] | 3 |
| Lynn Canal | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 1 | 3 | 3 | 3 | 1/5 | 5 |
| Frederick Sound | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 35 | 40 | 40 | 40 | 40/50 | 80 |
| Total | 60 | 60 | 60 | 60 | 60 | 60 | 65 | 61 | 68 | 68 | 68 | 60/58 | 88 |
[a] Specific dates of censuses, sighting techniques and sighting effort not given. Based on a table presented by the Juraszs at the meeting.
[] First number signifies number originally counted at beginning of season/second number after decrease in number of whales in Glacier Bay and increase in other areas. The identified whales that left Glacier Bay are not necessarily the same individuals that produced the increased numbers in Lynn Canal and Frederick Sound later.
TABLE 2. Number of humpback whales (individual census) entering Glacier Bay during "influxes". (modified from Jurasz and Jurasz, 1979)
| Year | 1976 | 1977 | 1978 |
| First Influx | 9 | 7 | 7 |
| Second Influx | 11 | 17 | 16 |
| Seasonal Maximum | 20 | 24 | 23 |
TABLE 3. Age composition of humpback whales per year in Glacier Bay (modified from Jurasz and Jurasz, 1979)
| YEAR | 1976 | 1977 | 1978 |
| NO. OF CALVES | 1 | 2 | 4 |
| NO. OF IDENTIFIED ADULTS | 14 | 14 | 18 |
| NO. OF JUVENILES | 6 | 1 | |
| TOTAL NO. OF ADULTS | 19 | 19 | 18 |