1. Estimating the natural spawning chum population in the Grays River Basin by Hymer, Joe Publication: Battle Ground, WA WDF 1994 . 17, [31] p. , 10004 28 cm. Date:1994 Availability: Copies available: StreamNet Library [SH 11.W36 C54 no.93-17] (1), Log in to add tags. Match: ... Estimating the natural spawning chum population in the Grays River Basin ... INTRODUCTION: Hundreds of thousands of chum returned to the Columbia River less than a century ago. In 1929, commercial landings peaked at nearly 700,000 fish (Chaney and Perry, 1976). As recently as 1942, nearly half a million Columbia River chum were landed by commercial fishermen. Sinc ethe early-1960's however, commercial catches have not exceeded two thousand fish (except 1988). In addition, peak fish/mile index area spawning ground counts have not exceeded one thousand fish (WDF, 1992). Oregon Columbia River chum escapement is currently so small the state has classified them as a "sensitive" species. In 1993, Washington's Grays River system and Hamilton Creek chum stock status were described as "depressed" (WDF, et al., 1993). ... Historically, chum were found in many Columbia River tributaries. Currently, there are a few tributaries that maintain low levels of chum production; however, the only remaining viable natural spawning populations are found in the Grays River system and Hamilton and Hardy creeks in Washington. This report will focus on the Grays River system natural spawning population. ... Washington Department of Fisheries (WDF) records indicate chum spawned in the West Fork and mainstem Grays River, Seal River, and Malone, Fossil, Hull, Klints, and Carzy Johnson creeks (WDF, 1973). No spawning ground counts could be found for Seal River and Malone Creek though chum numbers are assumed to be minimal. Chum are no longer consistently observed in Fossil, Hull, and Klints creeks and those streams are usually not surveyed. The West Fork of the Grays River peak area index counts are usually minor but are part of the annual spawning ground counts. Crazy Johnson Creek and the mainstem Grays River comprise the remaining annual spawning ground counts. By 1978 it was apparent that production had shifted to the mainstem Grays and Crazy Johnson Creek; at least partially the result of spawning habitat degradation in other areas of the Grays River system (Dammers, 1979). A map of the Grays River chum spawning areas can be found in Figure 1. ... In 1985, WDF Habitat Division constructed a pilot spawning channel at Gorley Springs. Subsequent spawning ground counts revealed a substantial number of chum spawned in the improved channel. Over 400 0chum were counted in Gorley Creek the following year (Fiscus, 1987). ... Except for 1951, pre-1968 index area counts were enumerated as fish/mile. Washington Department of Fisheries estimated 7,500 chum returned to the Grays River system in 1951. In 1978, WDF conducted a carcass tagging experiment to determine the Grays River chum natural spawning population. For the purpose of that population estimate, Grays River chum were treated as one homogenous population. Grays River total spawning ground population estimates were calculated for 1968 - 1978 using this information (Dammers, 1979). ... However, peak expansion factors for each individual stream may be more accurate. During low flow years, chum spawn primarily in the larger mainstem Grays River; during higher flows they can be found in large numbers in the smaller tributaries. In addition, individual stream peak count expansion factors are assumed to be different based on stream size, length, and flows. ... By creating individual peak count and visibility expansion factors, it is possible to re-examine historical data where peak fish/mile counts and water visibility conditions were made and use this information to construct past total natural spawning population estimates. In addition, age composition data has been gathered for many years. By combining the population estimates with the age composition, return and brood year tables could be created; hence historical Grays River chum returns could be used to predict future runs. ... In 1991, chum carcasses were tagged to determine individual peak count and create visibility expansion factors. The index areas used in the 1978 study were repeated for the 1991 study. In addition, WDF attempted to conduct a carcass tagging study to estimate the total chum natural spawning population in Gorley Creek. Details of the carcass studies and attempts to create individual natural spawn population estimates (including Gorley Creek) and re-examination of past data to improve the historical data base are provided in this report. ... peak count expansion ... Spawning ... index counts ... spawning survey ... Actions: Add to Cart
2. Adult Chum natural and hatcheries natural spawning, peak counts of the Lower Columbia River and tributaries and Chinook, coho, and chum summaries by Ollerenshaw, Eric Publication: Clackamas, OR ODFW 2006 , 50173 Date:2006 Availability: Copies available: StreamNet Library [StreamNet Reference] (1), Match: ... Adult Chum natural and hatcheries natural spawning, peak counts of the Lower Columbia River and tributaries and Chinook, coho, and chum summaries ... Actions: Add to Cart
3. Oregon Lower Columbia River Fall and Winter Chinook Spawning Ground Surveys, 1952-2002, Focus on 2001-2002 DRAFT and 2003 Peak Counts/Population Estimate tables   Publication: Oregon Department of Fish and Wildlife, Columbia River Management, Clackamas, OR 2003 , 51781 Date:2003 Availability: Copies available: (1), Match: ... Oregon Lower Columbia River Fall and Winter Chinook Spawning Ground Surveys, 1952-2002, Focus on 2001-2002 DRAFT and 2003 Peak Counts/Population Estimate tables ... Actions: Add to Cart
4. Summer/fall chinook salmon spawning ground survey in the Methow and Okanogan River basins, 1993 by Hillman, T.W. Publication: Boise, ID Don Chapman Consultants, Inc 1994 . 1 v. (appx. 63 leaves) , 11550 28 cm. Date:1994 Availability: Copies available: StreamNet Library [QL 639.2 .H5661 1993] (2), Match: ... Summer/fall chinook salmon spawning ground survey in the Methow and Okanogan River basins, 1993 ... Escapements and numbers of redds of summer/fall chinook salmon counted during aerial surveys on tributaries of the upper mid-Columbia River, Washington, 1956-1992. Escapement to the tributaries (ET) is peak aerial count times 3.1 fish/redd (from Meekin, 1967a). Wells count (WC) is the number of salmon passing over Wells Dam less Indian harvest. ET/WC is the quotient of escapement to the tributaries to counts at Wells Dam. ... (1) We used both ground and aerial surveys to assess number and distribution of redds, and time of spawning of summer/fall chinook salmon in sampling reaches on the Methow, Okanogan, and Similkameen Rivers. ... (3) Peak aerial counts of redds were 53% to 89% of the total ground counts: 116 redds in the Methow River, 144 in the Okanogan River, and 152 in the Similkameen River. ... (4) Spawning began the third week of September on the Methow and Similkameen rivers, and the first week of October on the Okanogan River. Activity peaked the first week of October on the Similkameen River and the third week of October on the Methow and Okanogan rivers. ... (5) Spawning progressed from higher to lower elevations on the Methow and Okanogan rivers. Redds were clumped on all rivers, but most widely dispersed on the Okanogan River. ... Spawning ... Spawning ... Spawning ... spawning timing ... Actions: Add to Cart
5. Estimating the chum salmon population in Hardy Creek 1957-93 by Hymer, Joe Publication: Battle Ground, WA WDFW 1994 . 15 leaves , 10028 28 cm. Date:1994 Availability: Copies available: StreamNet Library [SH 11 .W36 C54 no.94-11] (1), Match: ... INTRODUCTION: Historically, chum were found in many Columbia River tributaries. Currently, there are a few tributaries that maintain low levels of chum production; however the only remaining viable natural spawning populations are found in the Grays River system and Hamilton and Hardy creeks in Washington. This report will focus on the Hardy Creek chum natural spawning population. ... Generally, Hardy Creek chum escapements have been measured by fish/mile and total population estimates. The "Status Report" lists escapement in fish/mile (WDF, 1993a). The "Salmon and Steelhead Stock Inventory" also lists escapement in fish/mile (WDF, 1993b). Washington Department of Fisheries (1951) estimated chum escapement at 4,000 fish for the minor tributaries of the Washougal River area including Hamilton and Hardy creeks. The numbers of chum spawning in Hardy Creek averaged about 160 fish annually from 1967-71 (Fiscus, 1973). The later estimate was incorporated into the "Fisheries Resources in Southwest Washington" Review Draft (WDF, 1973). ... In 1978, Washington Department of Fisheries (WDF) conducted a carcass tagging experiment to determine the Hardy Creek chum spawning population. A total of 26 chum carcasses were tagged and only 6 were recovered from Hardy Crek. The low number of recoveries failed to produce a population estimate fro Hardy Creek chum (Dammers, 1979). ... However, a chum carcass tagging experiment in Hamilton Creek was successful in 1978. Considering the close stream proximity and size in addition to the similar timing of chum between Hamilton and Hardy creeks, it was assumed that the same relationship existed between peak counts and total population estimates for both streams. Therefore, the 1.53 peak count expansion factor developed for the Hamilton Creek chum population in 1978 was applied to the Hardy Creek peak chum count. Based on the peak count expansion factor, an estimated 136 and 64 chum spawned in Hamilton and Hardy creeks in 1978, respectively (Dammers, 1979). ... Recent Hardy Creek chum population estimates have been developed by the Hamilton Creek peak count expansion factor. These population estimates have been published in several reports including "The Stock Assessment Report" (Howell et al. 1984) and "Columbia River Subbasin Plan". (WDF, 1990). ... Because of the apparent shift in spawning escapement trends and the importance of Hardy Creek as a major Columbia River chum producer, a carcass tagging study was conducted in Hardy Creek in 1993. The carcass tagging study was an attempt to improve Hardy Creek chum population estimates. The peak count expansion factor developed from the 1993 carcass tagging study (if applicable) could be applied to the historic peak fish counts. Spawning ground counts have been conducted since 1957 on Hardy Creek. ... Chum index counts are likely to be conducted under less than optimum water conditions. The Grays River chum carcass tagging studies were affected by water visibility conditions for determining the actual peak counts necessary for generating natural spawn population estimates. Hardy Creek water conditions were also examined to determine whether counting efficiency was affected. ... By creating individual peak count and visibility expansion factors from the 1993 carcass tagging study, it will be possible to improve Hardy Creek chum population estimates, both past and present. By determining the population estimates for this stream, a single reference source could be used for future reports. ... Details of the 1993 Hardy Creek carcass tagging study and peak count and visibility expansion factors for that stream are provided below. ... spawning survey ... index counts ... peak count expansion ... Actions: Add to Cart
6. Washington Columbia River and tributary stream survey sampling results, 1992 by Hymer, Joe Publication: Battle Ground, WA WDF 1993 . 1 v. , 11261 28 cm. Date:1993 Availability: Copies available: StreamNet Library [SH 11 .W36 C54 no.93-19] (1), Match: ... INTRODUCTION: Spawning ground surveys in the Columbia River and tributaries for spring and fall chinook, coho, sockeye, and chum salmon have been emphasized in recent years (DeVore, Fiscus, Hawkins, Hymer, LeFleur, Norman). Information collected during these survyes is used to estimate natural spawning population sizes, age and stock compositions, and to formulate a coded-wire tag (CWT) recovery database. Information gathered for Columbia River fall chinook is used in the Pacific Salmon Treaty pass through analysis, the Pacific Fisheries Management Council ocean regulatory process, and Columbia River harvest management. In addition, information for all species has been recently incorporated into the Coordinated Information System (CIS) and the Salmon and Steelhead Stock Inventory (SASSI). ... While the emphasis of this report focuses on fall chinook for the 1992 spawning year, mark recovery information is also presented for other salmon species. Spring chinook and chum natural spawn escapement estimates and mark sample data can also be found in this report. The 1992 spring chinook natural spawn age composition for Washington Columbia River tributaries located below and above Bonneville Dam can be found in Columbia River Laboratory (CRL) Progress Reports No. 93-2 and No. 93-4, respectively. Lower Columbia River chum salmon natural spawn age composition and peak index counts have also been previously summarized (Fiscus, 1993). The age and stock composition of natural spawning fall chinook upstream from McNary Dam are summarized annually in other Columbia River Lab progress reports (LaVoy, Roler). ... Fish that returned to Washington hatcheries and were put upstream outside spawning ground index areas or after spawning ground counts have been completed were considered hatchery escapement for inclusion in Columbia River fall chinook run reconstruction. ... Spawning ... Spawning ... spawning ground survey ... peak count expansion ... Actions: Add to Cart
7. Chinook salmon spawning ground survey in Big Creek, Johnson Creek, Secesh River and Lake Creek, Salmon River subbasin, Idaho by Kucera, Paul A. Publication: Lapwai, ID NPT 1988 . v, 31 leaves , 261 28 cm. Date:1988 Availability: Copies available: StreamNet Library [SH 167 .S17 K83 1988] (1), Match: ... Chinook salmon spawning ground survey in Big Creek, Johnson Creek, Secesh River and Lake Creek, Salmon River subbasin, Idaho ... From August to September, 1988 chinook [sic] salmon spawning ground surveys were conducted on Big Creek, Johnson Creek, Secesh River and Lake Creek. All of the streams are located in the Salmon River subbasin. A total of 93 redds were enumerated in the index area in upper Big Creek which is a [sic] increase from the 1987 survey counts. Spawning peaked in upper Big Creek by August 8 and was completed by the September 5 survey. Chinook that spawned lower in the the Big Creek system spawned two to three weeks later; peaking and being essentially completed by the September 6 survey. Examination of salmon carcasses (n=74) indicated an age structure of 20% age IV and 80% age V salmon. The male female rtion (n=81) was 1:1.53. ... The Johnson Creek survey yielded a total of 135 redds with salmon spawning peaking by August 23 and being completed by the September 6 survey. One hundred and twelve salmon carcasses were sampled for an estimated age structure of 4% age III, 11% age IV fish and 86% age V fish. The male to female sex ratio (M:F) from 108 kelts was of 1:1. ... Redd count surveys in the Secesh River enumerated 83 redds in the index area, an increase of 9 redds from the 1987 count. Peak spawning occurred in the Secesh by the August 26 survey and was completed by the September 7 survey. Age structure of the spawning population, from measurements of 103 carcasses, was 5% age III fish, 7% age IV fish and 88% age V salmon. The male to female sex ratio was 1:1.29. ... Spawning ground surveys in Lake Creek yielded a total of 48 redds with spawning peaking somewhere between August 11 to August 25. Completion of spawning occurred by the September 8 survey. Age structure of the spawning population, from measurements of 24 carcasses was, 8% age III, 29% age IV and 63% age V with a sex ration (M:F) of 1:1.13 for the 32 fish sexed. ... Spawning ... Spawning ... Spawning ... Actions: Add to Cart
8. Okanagan River sockeye spawner enumeration and biological sampling 2005 by Audy, Natasha Publication: Westbank, BC, Canada ONA 2006 . iv, 27 p. , 12560 28 cm. Date:2006 Availability: Copies available: StreamNet Library [StreamNet Reference] (1), StreamNet References [StreamNet Reference] (1), Match: ... EXEC. SUMMARY: Sockeye migrated to the spawning grounds from their holding in Osoyoos Lake with the first fish counted on September 13th. Counts from Wells Dam indicated that 53,218 sockeye passed the dam's ladder. The peak counts of live and dead sockeye in the index section (Reaches 1 through 3) is 23,565. This count occurred on October 19th 2005. The date when 10% of the count run is dead which is considered the time when the peak of the run has been passed also occurred October 19th. The peak counts of live kokanee occurred on October 13th with 19 kokanee counted. The peak counts of live chinook occurred on October 16th with 16 chinook counted. the peak count of sockeye redds was 3,281. ... A peak count of 714 live sockeye were found in the VDS section (Reach 4) on October 22ne. Another high live count occurred on October 13th, this may have occurred because of medium fish visibility and because the crew had changed. The peak count of kokanee occurred on October 13th with 451 counted. ... A number of methods were used this year to estimate the ratio of male to female sockeye and determine the best method for future years. Of the three methods, gillnetting, beach seining and dead counts, we found varied ratios. Ratio of male to females for gillnetting was 1:0.71, and similarly for beach seining a ratio of 1: 0.47 was found. These methods are known to favour the capture of males. In contrast the ratio from the dead counts was 1:1.7 in favour of females. It is recommended that we continue, and preferably increase, our number of dead counts by stream walks to more accurately estimate the sex ratio. ... Actions: Add to Cart
9. Chinook salmon spawning ground survey in Big Creek, Johnson Creek, Secesh River and Lake Creek, Salmon River subbasin, Idaho by Kucera, Paul A. Publication: Lapwai, ID NPT 1987 . v, 27 leaves , 260 28 cm. Date:1987 Availability: Copies available: StreamNet Library [SH 167 .S17 K83 1987] (1), Match: ... Chinook salmon spawning ground survey in Big Creek, Johnson Creek, Secesh River and Lake Creek, Salmon River subbasin, Idaho ... From July to September, 1987, chinook [sic] salmon spawning ground surveys were conducted on Big Creek, Johnson Creek, Secesh River and Lake Creek. All of the streams were located in the Salmon River subbasin. A total of 24 redds were enumerated in the index area in upper Big Creek which is a decline from the 1986 survey counts. Spawning peaked in upper Big Creek by August 11 and was completed by August 23. Chinook that spawned lower in the Big Creek system spawned two to three weeks later; peaking and being essentially completed by September 9. Only nine salmon kelts were examined which was not sufficient for meaningful age structure or sex composition information. ... The Johnson Creek survey yielded a total of 59 redds with salmon spawning peaking by August 26 and being completed by September 9. Thirty two salmon carcasses were sampled for an estimated age structure of 72% age IV fish and 28% age V fish and a male to female sex ratio (M:F) of 1.13:1. However, on August 26 an observation of 80 live salmon in one section of stream, showed three to four males on most redds with one female. Length frequency age assignments will be verified through scale reading where possible. ... Redd count surveys in the Secesh River enumerated 74 redds. Peak spawning occured in the Secesh by August 27 and was completed by September 10. Age structure of the spawning population, from measurements of 67 carcasses, was 1.5% age III fish, 53.7% age IV fish and 44.8% age V salmon. The sex ration was 1:68 M:1 F. ... Spawning ground surveys in Lake Creek yielded a total of 39 redds with spawning peaking somewhere between August 14 to August 28. Completion of spawning occurred by August 28. An insufficient sample size was obtained to present age composition information. ... Spawning ... Spawning ... Spawning ... Actions: Add to Cart
10. Summer Chinook salmon spawning ground surveys of the Methow and Okanogan river basins in 1990 by Langness, Olaf Paul Publication: Nespelem, WA Confederated Tribes of the Colville Reservation 1991 . viii, 87 leaves , 60210 28 cm. Date:1991 Availability: Copies available: StreamNet References [StreamNet Reference] (1), Match: ... Summer Chinook salmon spawning ground surveys of the Methow and Okanogan river basins in 1990 ... Comprehensive spawning ground data on summer chinook salmon (Oncorhynchus tshawytscha) were collected throughout the Methow and Okanogan (including Similkameen) river basins by the Confederated Tribes of the Colville Reservation under contract with Public Utility District No. 1 of Chelan County. The baseline data developed from this study, and the three previous comprehensive studies by the Yakima Indian Nation, will be used to evaluate the impact of outplantings from Eastbank Hatchery as outlined in the Rock Island Settlement Agreement. ... In most reaches, summer chinook spawning commenced at the beginning of October, and peaked during the third week. November (fall chinook) spawning activity was restricted to below the town of Methow in the Methow River Basin, and between Ellisforde and Tonasket in the Okanogan River Basin. No chinook spawning was observed in the Okanogan River from Riverside to Omak, and below Malott. Also, no spawning was observed above the railroad trestle on the Similkameen River. ... Aerial counts were: 229 chinook redds for the Methow River; 88 redds for the Okanogan River; and, 94 redds for the Similkameen River. Rafting counts were: 409 chinook redds for the Methow; 47 redds for the Okanogam River, and, 147 redds for the Similkameen River. The 1990 summer chinook count at Wells Dam was average, while the fall chinook count was low. ... Sockeye were observed spawning in the summer chinook index areas: 99 redds, Methow River; 10 redds, Okanogan River; and 16 redds, Similkameen River. ... The depth (range 23 - 105 cm, mean 47.6 cm), flow (range 22.86 - 75.59 cm/s, mean 53.07 cm/s), and substrate spawning preferences, in the Methow River, are within published ranges for summer chinook. Redd sizes (range 1.9 - 19.6 m^2), mean 6.1m^2) were also typical for the race. ... Most live salmon sighted were guarding redds, though some were seen migrating earlier in the season. The peak live count for the Methow (79) and Okanogan (26) rivers came in the third week of October. The live chinook peak in the Similkameen (85) came in the fourth week. Carcass sightings peaked two to three weeks later in all three rivers. ... spawning ground survey ... Actions: Add to Cart
11. Population estimates of natural spawning adult and jack fall chinook on the Wind, Big White Salmon, and Klickitat rivers, 1964-81 by Norman, Guy Publication: Vancouver, WA WDF 1982 . [11] p. , 10033 28 cm. Date:1982 Availability: Copies available: StreamNet References [StreamNet Reference] (1), Match: ... Population estimates of natural spawning adult and jack fall chinook on the Wind, Big White Salmon, and Klickitat rivers, 1964-81 ... INTRODUCTION: In order to develop a means of accountability for fall chinook passing over Bonneville Dam, but not accounted for in The Dalles Dam counts or Bonneville pool fisheries, existing data was reviewed and fall chinook spawning population estimates were made on the Wind, Big White Salmon, and Klickitat rivers, 1964-81. The best available data was then used to estimate the adult and jack proportions of the spawning populations estimated for each stream. ... Spawning ... peak count expansion ... Actions: Add to Cart
12. Spring Chinook spawning ground surveys in the Methow River Basin in 2005 by Humling, Michael Publication: Olympia, WA WDFW 2006 . 48 p. , 12559 28 cm. Date:2006 Availability: Copies available: StreamNet Library [StreamNet Reference] (1), StreamNet References [StreamNet Reference] (1), Match: ... Spring Chinook spawning ground surveys in the Methow River Basin in 2005 ... This report summarizes the spring Chinook spawning ground surveys conducted in the Methow Basin in 2005. Comprehensive surveys were conducted on foot within historical spring Chinook spawning habitat. ... Spawning was first observed during the second week of August within the higher elevation reaches of the surveyed tributaries. Peak spawning appeared to be temperature related and gradually progressed downstream throughout the basin. Spawning was concluded by mid-September in all surveyed tributaries. A total of 566 redds were found in the Methow (N = 294), Chewuch (N = 217) and Twisp (N = 55) sub-basins. ... The Wells Dam spring Chinook count (N = 4,996) was adjusted by subtracting the estimated number of summer Chinook included as part of the count (N - 2,281), spring Chinook collected for hatchery broodstocks (N = 740), and the estimated spring Chinook escapement to the Okanogan Basin (N = 156). Hence, the estimated spring Chinook run escapement to the spawning grounds in the Methow Basin was 1,819 fish. Based on redds [sic] counts, the estimated spawning escapement in the Methow River was 747 fish, Chewuch River was 508 fish, and 121 fish in the Twisp River. The estimated spawning escapement (N = 1,376) represents 75.6% of the adjusted Wells Dam count. ... A total of 540 spring Chinook carcasses were recovered from the upper Methow (N = 242), Chewuch (N = 259), and Twisp (N = 39) sub-basins. Carcass recoveries were 33.7%, 51.1% and 32.2% of the estimated escapements to Methow, Chewuch, and Twisp sub-basins, respectively. Overall, 39.2% of the basin-wide spawning escapement was recovered as carcasses. Expanded carcass recoveries suggest that 38.7% (N = 533) of the spring Chinook spawning in the Methow Basin were wild fish. Although the proportion of wild fish in the Methow (N = 185; 28.1%), Chewuch (N = 223; 43.8%), and Twisp (N = 87); 71.9%) sub-basins varied substantially. Expanded coded-wire tag recoveries suggest that the hatchery component of the spawning escapement consisted of 87.8% (N = 693) Methow composite stock, 4.1% (N = 33) Twisp stock, and 3.8% (N = 30) non-ESA-listed spring Chinook released in the Methow River basin. The remaining fish consisted of 4.1% (N = 33) ou-of-basin strays from other Columbia Basin hatcheries. ... spawning ground surveys ... redd counts ... Actions: Add to Cart
13. Salmon and steelhead investigations by Bjornn, Ted C. Publication: Boise, ID IDFG 1966 . [i], 57 p. , 61 28 cm. Date:1966 Availability: Copies available: StreamNet Library [QL 638 .S21 S3551 1965] (1), Match: ... Salmon spawning ground surveys, Salmon River drainage ... A weir was placed in the South Fork of the Salmon River below the major spawning area, and a run of about 2,000 adult chinook was enumerated. More than one-half of the spawning population was 3-year-old male fish . Sex and age composition data were recorded at the weir and related to comparable data collected from redd counts and fish found dead on the spawning grounds. Close agreement was noted between weir and dead fish data. Redds were counted at a rate of 1.5 per female chinook thought to be on the spawning grounds. ... Indications were that the peak of spawning activity in Bear Valley and Elk Creeks was earlier by about one week in 1965 than in several years previous. Frequent checks should be made prior to the scheduled survey data to determine if the spawning time on each stream is similar to the past years. ... spawning survey ... spawning distribution ... spawning ground survey ... Actions: Add to Cart
14. Estimating the population size of natural spawning bright fall Chinook in the Big White Salmon River by Hymer, Joe Publication: Battle Ground, WA WDF 1991 . 1 v. (unpaged) ; 28 cm ; appendices, lit. cited; 8 tables , 220 28 cm. Date:1991 Availability: Copies available: StreamNet Library [SH 11 .W36 C54 no.91-20] (1), Match: ... Estimating the population size of natural spawning bright fall Chinook in the Big White Salmon River ... INTRODUCTION: Significant numbers of fall chinook [sic] spawning occurred in the Big White Salmon River during October and November in 1987 and again in 1988 (Hymer, 1988). Coded-wire tag recoveries from carcasses sampled during late fall 1987 and 1988 revealed those fish were primarily stray Upriver Bright stock from Bonneville and Little White Salmon hatcheries (Hymer, 1989). No expansion factor has been developed to estimate the late fall spawning segment of the population in this river. Preliminary populstion estimates for the late spawning fall chinook were based on a variety of factors including live and dead fish counts, water visibility, stock timing and the tule (early fall) peak fish count expansion factor. Natural spawning fall chinook numbers are needed for the fall chinook database and run reconstruction. A mark-recapture study was conducted from October-December, 1989 to determine a population estimate and peak count expansion factor. Data collected from this study would be used to confirm the stock origin. Details of the study including population estimation, age and stock composition are provided below. ... Actions: Add to Cart
15. 2005 upper Columbia River summer Chinook spawning ground surveys by Miller, Todd Publication: Wenatchee, WA WDFW 2006 . 14 p. , 12558 28 cm. Date:2006 Availability: Copies available: StreamNet References [StreamNet Reference] (1), Match: ... 2005 upper Columbia River summer Chinook spawning ground surveys ... Summer Chinook salmon spawning ground surveys in the Methow and Okanogan river basins began in 1956. Spawning ground methodology has ranged from aerial peak counts to comprehensive total ground conts initiated in 1990. The Washington Department of Fish and Wildlife Supplementation Research Team (SRT) has been conducting spawning ground surveys in tributaries above Wells Dam and in the Chelan River since 1998. The objectives of the surveys were to 1) enumerate the total number of summer Chinook redds in the Okanogan and Methow River Basins; 2) collect biological data (e.g., scales, length, egg retention, location) from wild and hatchery summer Chinook carcasses; and 3) recover CWTs from hatchery carcasses. ... spawning ground surveys ... Actions: Add to Cart
16. Personal communication - tables of historical peak counts of salmon escapements in coastal Oregon watersheds   Publication: unpublished 1985 . 2 leaves; 2 tables , 60062 Date:1985 Availability: Copies available: StreamNet Library (1), StreamNet Library (), Match: ... Personal communication - tables of historical peak counts of salmon escapements in coastal Oregon watersheds ... spawning ground survey ... Actions: Add to Cart
17. Spawning chinook, coho, and chum salmon surveys in coastal watersheds of Oregon, 1981   Publication: Portland, OR ODFW 1982 . 38 pp. including appendices, lit. cited; 18 tables; 3 figures , 60056 Date:1982 Availability: Copies available: StreamNet Library (1), StreamNet Library (), Match: ... Spawning chinook, coho, and chum salmon surveys in coastal watersheds of Oregon, 1981 ... index counts ... peak count expansion ... spawning survey ... Actions: Add to Cart
18. Spawning chinook, coho, and chum salmon surveys in coastal watersheds of Oregon, 1979   Publication: Charleston, OR ODFW 1980 . 13 pp. including appendices, lit. cited; 5 tables; 3 figures , 51224 Date:1980 Availability: Copies available: StreamNet Library (1), Match: ... Spawning chinook, coho, and chum salmon surveys in coastal watersheds of Oregon, 1979 ... index counts ... peak count expansion ... spawning survey ... Actions: Add to Cart
19. 2001 Columbia River chum return by Keller, Ken Publication: Vancouver, WA WDFW 2002 . 18 p. , 12527 28 cm. Date:2002 Availability: Copies available: StreamNet Library [SH 11 .W36 C54 no. 02-9] (2), Match: ... Spawning ground counts are made annually on the Grays River system and Hardy and Hamilton creeks. The Grays River enters the Columbia River at River Mile 21 (RM 21). Chum spawn in the main stem Grays from the covered bridge (RM 9) to about 0.5 miles upstream from the confluence with the West Fork Grays (RM 12). Tributary spawning occurs in the West Fork Grays and Crazy Johnson Creek (about 0.5 miles up from the mouth of the W.F. Grays). Until December of 1999, spawning also occurred on Gorley Creek (RM 12). At that time high water changed the channel of the Grays River eliminating Gorley Creek as well as the 800 foot long spawning channel that had been constructed at Gorley Creek in 1995. The peak spawning time for Grays River chum is mid to late November. ... Hardy Creek enters the Columbia River at about RM 142, four miles below Bonneville Dam. Chum spawn in Hardy Creek from the railroad culvert downstream for about one mile. Hamilton Creek enters the Columbia River at about RM 143. Chum spawn in the lower 1.5 miles of the stream and in a small spring fed tributary know as Spring Channel. The Spring Channel was renovated in the summer of 1996. The peak spawning time for Hardy and Hamilton creek chum is early to mid December. ... Actions: Add to Cart
20. Population estimates and age composition of naturally spawning fall chinook in lower Columbia River tributaries, 1984   Publication: unpublished 1985 . (6 pp); 6 tables , 60052 Date:1985 Availability: Copies available: StreamNet Library (1), StreamNet Library (), Match: ... Population estimates and age composition of naturally spawning fall chinook in lower Columbia River tributaries, 1984 ... index counts ... peak count expansion ... Actions: Add to Cart
21. Personal communication from Mark Miller to Chuck Pevan [sic] by Miller, Mark Publication: S.l. s.n. 1997 . [9] leaves , 10044 28 cm. Date:1997 Availability: Copies available: StreamNet References [StreamNet Reference] (1), Match: ... Here is the information you requested on historical spawning ground surveys from app. C & E. Please note that no aerial surveys were conducted on the Methow River in 1996. Instead, we used a reduction factor on ground counts to estimate a peak aerial survey. The estimate allows us to continue the long term trend analysis we have used in past years for the Methow River. ... Actions: Add to Cart
22. ODFW North Coast Fish District unpublished files: winter steelhead peak redd and fish counts on the Salmonberry River   Publication: S.l. unpublished 1998 . 1 leaf; 1 tables; 0 figures , 50043 Date:1998 Availability: Copies available: StreamNet Library (1), StreamNet Library (), Match: ... ODFW North Coast Fish District unpublished files: winter steelhead peak redd and fish counts on the Salmonberry River ... spawning survey ... Actions: Add to Cart
23. Salmon and steelhead investigations   Publication: Boise, ID IDFG 1966 . (ix) 110 p. , 426 28 cm. Date:1966 Availability: Copies available: StreamNet Library [QL 638 .S21 S3551 1964] (1), Match: ... Salmon spawning ground surveys, Salmon River drainage ... A weir in the upper South Fork of the Salmon River was used to count a run of 2,895 chinook into the river. Thirty-six percent of the run was harvested by the sport fishery, leaving a spawning escapement of about 1,800. The spawning population was calculated to be comprised of 1,094 males and 710 females. The number of redds counted after spawning was completed exceeded the number of females thought to be on the spawning grounds by about 58 percent. ... JOB 2: Ground and aerial counts of chinook salmon redds in the Salmon and Snake River drainages were made again in 1964. Most of the areas were counted from the ground in conjunction with the collection of life history data from dead spawners examined on the spawning grounds. ... There were more (4.9 - 23.6 percent) spring- and summer-run chinook salmon counted at the dams in the Columbia and Snake Rivers in 1964 than in 1963, except at Ice Harbor Dam where the spring-run chinook count was 11.3 percent smaller than in 1964 than 1963. Accordingly, the number of redds counted in the Salmon River drainage in 1964 (8,424) was also up from the count in 1963 (7,254). The number of redds counted in both spring-run and summer-run chinook spawning areas was more than in 1963. ... Downstream migrant juvenile chinook salmon and rainbow-steelhead trout (Salmo gairdneri) were sampled at the louver trap portion of the Lemhi weir and at screen traps L-43 and L-5. At the louver trap 3,423 juvenile chinook salmon and 540 rainbow-steelhead trout were caught in the 156 days of trapping. In 172 days of trapping at screen L-43, 89.3 chinook salmon and 86 rainbow-steelhead trout were caught. The atch at screen L-5 in 38 days of trapping was 3,334 chinook salmon and 23 rainbow-steelhead trout. The peak of downstream movement of chinook salmon juveniles occurred during October as evidenced by the large catches at all three sampling stations. Chinook salmon appeared to be sampled equally well at all the three sampling sites; however, the catch of rainbow-steelhead trout was markedly higher at the louver trap as compared to the catch at screens L-43 and L-5. Juvenile steelhead trout may not be captured in the screen traps as readily as juvenile chinook salmon, or captured more readily in the louver trap. ... spawning survey ... Actions: Add to Cart
24. Addendum to 8/13/80 naturally spawning population estimates memo by Kreitman, Gayle Publication: Vancouver, WA WDF 1981 . [10] leaves; 3 tables , 10029 28 cm. Date:1981 Availability: Copies available: StreamNet References [StreamNet Reference] (1), Match: ... Addendum to 8/13/80 naturally spawning population estimates memo ... index counts ... peak count expansion ... Actions: Add to Cart
25. Electronic datafile on chinook, coho and chum peak counts in coastal Oregon streams   Publication: S.l. unpublished 1996 . 1 computer file , 60558 Date:1996 Availability: Copies available: StreamNet Library (1), StreamNet Library (), Match: ... Electronic datafile on chinook, coho and chum peak counts in coastal Oregon streams ... spawning ground survey ... Actions: Add to Cart
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