Fisheries, Subsistence, and Habitat
Publications Searchable Database
Search Again| Division: | Sport Fish |
| Title: | Early-run Chinook salmon creel survey, Kasilof River, Alaska, 2002–2008 |
| Author: | Cope, J. L. |
| Year: | 2011 |
| Report ID: | Alaska Department of Fish and Game, Fishery Data Series No. 11-18 Anchorage |
| Abstract: | A harvest monitoring program estimating age, sex and length of Chinook salmon Oncorhynchus tshawytscha was conducted on the Kasilof River in 2002 and 2003. From 2004 through 2008, the program was expanded to include a creel survey estimating catch, harvest, and angler effort. The project was operated from May 16 to June 30 during all years except 2002 when it was operated from June 12 to June 30. Information collected in 2002 could not be used to generate estimates of harvest. Information collected in 2003 was combined with the Statewide Harvest Survey to estimate the age distribution of the harvest. From 2004 through 2008 catch, harvest, and angler effort estimates were generated from the creel survey for both naturally- and hatchery-produced Chinook salmon. From 2004 through 2008, mean estimated catch was 4,805 fish for naturally- and hatchery-produced Chinook salmon. Catches during this period ranged from 6,089 (SE = 596) in 2004 to 3,184 (SE = 402) in 2008. Naturally-produced catch during this period averaged 2,678 fish and ranged from 3,023 (SE = 300) in 2004 to 1,902 (SE = 231) in 2008. Hatchery-produced catch during this period averaged 2,047 fish and ranged from 3,066 (SE = 329) in 2004 to 1,222 (SE = 202) in 2008. From 2004 through 2008, mean estimated harvest was 2,440 fish for naturally- and hatchery-produced Chinook salmon. Harvest during this period ranged from 2,665 (SE = 272) in 2005 to 1,984 (SE = 305) in 2008. Naturally-produced harvest during this period averaged 714 fish and ranged from 1,107 (SE = 170) in 2007 to 572 (SE = 79) in 2005. Hatchery-produced harvest during this period averaged 1,722 fish and ranged from 2,407 (SE = 271) in 2004 to 1,129 (SE = 193) in 2008. The mean number of anglers was 13,309 and mean angler effort was 62,152 angler-hours. Estimated number of anglers ranged from 12,015 (SE = 1,235) in 2004 to 16,248 (SE = 1,660) in 2006 and effort ranged from 51,854 (SE = 6,370) in 2004 to 75,258 (SE = 5,763) angler-hours in 2006. Naturally and hatchery-produced Chinook salmon catch, harvest, and effort estimates by angler type and method are also included in this report as well as harvest estimates by age class and sex. |
| Keywords: | Kasilof River, Oncorhynchus tshawytscha, Chinook salmon, creel survey, effort, harvest, age composition |