| Abstract: | Some aspects of a previously described migratory paradigm for the
southern form of anadromous Dolly Varden were investigated with seven
3-year mark-recapture experiments on fish that used lakes in eight
watersheds as their winter residence. Weirs on Kodiak Island, around
Prince William Sound, and near Juneau, Alaska, were used to capture
Dolly Varden as they emigrated to the sea each spring. Dolly Varden
(<200 mm fork length) were individually marked during the first year
of each experiment (1989 or 1990), and log-linear models of their
capture histories were used to estimate probabilities of capture
during the second year (1990 or 1991). Our observations on timing of
spring emigration and dispersal of Dolly Varden at sea confirm
observations from earlier studies. Our results support the paradigm
that Dolly Varden home to the same lacustrine watershed when
overwintering in fresh water, as more than 98% of the recaptured fish
did so. Our results contradicted the paradigm that Dolly Varden
return to lakes each fall, for across study populations, 14-58% failed
to return. The most probable explanation for this anomalous behavior
is that some Dolly Varden spend the winter as sea. Differences in
maturity, size, and growth of Dolly Varden and timing of their
entrance into salt water during spring emigration were excluded as
causes of this anomalous behavior. |
| Genre: | Article |
| ProdID: | 1012876 |
| Citation Author: | Bernard, D. R.; Hepler, K. R.; Jones, J. D.; Whalen, M. E.; McBride, D. N. |
| Citation Contributing Office: | Alaska Biological Science Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 307 |
| Citation Issue: | 3 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Transactions of the American Fisheries Society |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | MAY |
| Citation No Pagination: | |
| Citation Number Of Pages: | 11 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | pp. 297-307 |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Some tests of the "migration hypothesis" for anadromous Dolly Varden (southern form); 1995; Article; Journal; Transactions of the American Fisheries Society; Bernard, D. R.; Hepler, K. R.; Jones, J. D.; Whalen, M. E.; McBride, D. N. |
| Citation Start Page: | 297 |
| Citation Volume: | 124 |
| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Some tests of the "migration hypothesis" for anadromous Dolly Varden (southern form); 1995; Article; Journal; Transactions of the American Fisheries Society; Bernard, D. R.; Hepler, K. R.; Jones, J. D.; Whalen, M. E.; McBride, D. N. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1995 00:00 -0600 |
| Publisher: | |
