| dc.date |
2007-04-25T19:52:54Z |
|
| dc.date |
2007-04-25T19:52:54Z |
|
| dc.date |
1997-01 |
|
| dc.date.accessioned |
2013-10-16T07:47:50Z |
|
| dc.date.available |
2013-10-16T07:47:50Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
Jackson,Aaron D., Tribal Fisheries Program, Department of Natural Resources, Confederated Tribes of the Umatilla
Indian Reservation, Douglas R. Hatch, Blaine L. Parker, Columbia River Inter-Tribal Fish Commission, David A.
Close, Martin S. Fitzpatrick, Hiram Li, Oregon Cooperative Fishery Research Unit, Department of Fisheries and
Wildlife, Oregon State University, U. S. Department of Energy, Bonneville Power Administration, Division of Fish and
Wildlife, Project Number 1994-026, Contract Number 95BI39067, 97 electronic pages (BPA Report DOE/BP-39067-3) |
|
| dc.identifier |
http://hdl.handle.net/1957/4645 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/4645 |
|
| dc.description |
Based on oral interviews with tribal informants, current and former state and
federal fisheries personnel, review of records and literature, and presence/absence
sampling, it is apparent that Pacific lamprey were once abundant in ceded area streams of
the Umatilla Indian Reservation (John Day, Umatilla, Walla Walla, Tucannon, and Grande
Ronde subbasins). Current population levels appear severely depressed in all subbasins
except possibly the John Day, which could be classified as depressed. The most probable
reasons for population declines include: dams, chemical treatment activities, declining
habitat quality (e.g. high water temperatures, poor water quality, low instream flows), and
angle-iron in fishways to prevent lamprey passage. |
|
| dc.language |
en_US |
|
| dc.publisher |
Portland, Or. : Bonneville Power Administration |
|
| dc.relation |
Reports and Publications -- Other Reports and Publications |
|
| dc.relation |
Explorer Site -- Oregon Explorer |
|
| dc.subject |
Thematic Classification -- Land and People |
|
| dc.subject |
Thematic Classification -- Plants and Animals -- Fish -- Anadromous Fish -- Lamprey |
|
| dc.title |
Pacific lamprey research and restoration : 1997 annual report |
|
| dc.type |
Technical Report |
|