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>-a: ')) <( a: BRISTOL BAY DATA REPORT NO. 52 ID _J 1- ~ m~ <( :r: C) o1S LL 0 <( Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1974
by
Michael L. Nelson Fishery Biologist
Am:.Js Aias'kaResoutccs Libni!'v & lnlOt'm..'llton Se:;v:i.ces Library :B~dlJing. Suite 1U 3211 Providence Drive ilnchorage,AJ(99508-4514
Alaska Department of. Fish and Game Division of Commercial Fisheries Dillingham, Alaska
· .:>;;:>~TATE OF ALASKA May 21 , 197 5 ( /'.~.·-~,·p.~~.-~T. M~NT OF FISH AND GAME , ·I~.CH!l:dGE, ALAS:·: A ) LIBRARY "··. " · 1"""' ;p.o. Box a-2000 . ~. · cJIJNEAU, ALASKA 99802-2000 i
TABLE OF CONTENTS Page(s) Introduction and Background------1 Data Analysis Methods------2 Results------3 Sockeye Salmon------3 Hood River Lakes------3 Igushik Lakes------5 Tikchik Lakes------5 Lake Nunavaugaluk - Togiak District------5 King Salmon------7 Chum Salmon------8 Figures 1 - 5------9-14 Appendix------14A
Tables 1 - 2 l~ood River Sockeye Salmon------ 15-18 Tables 3 - 4 Snake River - Togiak Sockeye Salmon------ 19 Tables 5 - 6 Igushik Sockeye Salmon------ 20-22 .Tables 7 - 8 Tikchik Sockeye Salmon------ 23-25 Table 9 Sockeye Spawner Distribution by Area----- 25 !Tij.bles 10-11 Nushagak King Salmon------ 27-29 !Table 12 Togiak King Salmon------ 30 Tables 13-14 Togiak Chum Salmon------c------31-32
Appendix A (List of Bristol Bay Data Reports)------~------33-35 ! i SPAHNING GROUND SURVEYS IN THE NUSHAGAK AND TOGIAK DISTRICTS OF BRISTOL BAY, 1974 by Michael L. Nelson, Fishery Biologist Alaska Department of Fish and Game Division of Commercial Fisheries Dillingham, Alaska INTRODUCTION AND BACKGROUND Spawning ground surveys have been conducted in the Nushagak district since 1946, while comprehensive surveys in the Togiak district commenced in 1959. Early survey efforts were aimed primarily at sockeye salmon and much of the early years data is not complete or comparable in scope with surveys of recent years. t4ost surveys in the early years were aimed at determining "index escapements" for sockeye salmon for all major systems in Bristol Bay.' As accurate sockeye salmon escapements became a.vailable in the late 1950's, many of the systems sur veyed were dropped from the survey program. The Wood River aerial program, as well as Snake River in the Nushagak district, and the Kulukak and Togiak tribut- ary surveys were retained. On most of the previously described systems, surveys were continued to determine escapements, as costs have precluded establishment of counting towers or weirs. Program emphasis has shifted gradually over the years, and now king and chum salmon surveys in both districts are a major portion of the project. The· survey program includes sockeye salmon distribution and abundance studies in the l4ood River Lakes, lake Nunavaugaluk (Snake River Lake}, Kulukak and tributaries of the Togiak system; king salmon studies in the entire Nushagak district drain- age; king and chum salmon studies in the entire Togiak district drainage. The Igushik and Tikchik Lake systems wereboth surveyed in 1974 to com plement an investigation into the rehabilitation ilond enhancement opportunities of these lake systems through special funding provided by the State Legislature. Aerial survey methods employed in·l974·were comparable to those in the past (see Appendix A of the 1972 Spawning Ground Report, Bristol Bay Data Report No...... , . 34). The author flew all surveys, and · .1974 is the thi.rteenth consecutive 2 year the author has conducted all or part of the surveys. Weather during the , survey program was good to excellent in 1974. Appendix A of the 1972 Spawning Ground Report (Bristol Bay Data Report No. 34) reports in detail instructions and procedures for the implementation of the survey program in a comparable manner from year to year .. DATA ANALYSIS METHODS Since 1970 the proportional factor method has been used to determine sockeye salmon spawning population estimates by major spawning area in the Wood River Lakes system. Using this method, the first step is to estimate the total population of the major rivers (i.e. Wood, Agulowak, Little Togiak, Agulukpak, Peace, Wind and Grant Rivers) based on information gathered by_aerial surveys of each river during the season. The peak survey estimates for the major river areas between lakes were assumed to approximate the total spawning population more closely than those for creek and beach spawning areas. The assumption was made because (1) duration of . river spawning is relatively short, which allows viewing of nearly the total pop ulation at peak of spawning; and (2) the broad rivers, with clear banks and limited depth, provide conditions for viewing a higher proportion of the fish present than most creek and many beach areas do. The sum of peak survey estimates of creek and beach spawning for each major lake area was assumed to be a constant fraction of the total spawners in these areas. Since it was estimated that 376,000 sockeye _salmon had spawned in the
rivers, 1,332,800 of the 1,708,800 counted past the ~load River tower were estimated to have spawned in the creeks arid beaches adjacent to the major lakes (Table 1). The sum of the peak survey estimates. for these areas (creeks and beaches) was 484,830; 1,332,800/484,830 produced a factor of 2.75, which .was multiplied by the peak survey estimate of each 'lake to obtain the total population by lake area (Table 2). The sum of the final estimqtes was made to equal the total population of the Wood River system as obtained frop1 the tower counts. 3 Total population estimates of chum salmon in the Togiak district and sockeye salmon in the Togiak tributaries and Kulukak River systems was based on peak aerial surveys and a variation of the factor method described above. Until total popul- ation counts are.available from chum and sockeye salmon stocks in these areas, the proportional factor method will be utilized. The writer believes the values ob- tained are a very good approximation of the total spawning population. RESULTS SOCKEYE SALMON
Sockeye salmon aerial surveys were conducted in the \~ood River Lakes, Igushik Lakes and Nunavaugaluk Lake systems (Snake River Lake) to determine spawner dis- tribution and abundance by major spawning area, and in the Togiak tributaries (Gechiak, Ongivinuck and Pungokepuk), and the Kulukak River system of the Togiak district to determine spawning escapement (Figures 1-6). Wood River Lakes Peak aerial estimates of sockeye salmon for the Wood River Lakes in 1972-74 are shown on Table 1, while final population estimates adjusted to the tower count are shown on Table 2. The 1974 escapement of 1,708,800 sockeye salmon to the Hood River system was the largest escapement since 1959 (2,209,300) and contributed 75.7 percent o.f. the total Nushagak district escapement, (see below) and was 91 percent higher than the
20-year (1955-74) average escapement of 894,900. The vlood River Lakes systef, i ' which has a surface area of 164 square miles is first in importance in Nusha'gak. i district and has contributed over 68 percent of the district escapement since 1959. Percent Total Nushkgak System Escapement District Escapement Hood River 1,708,800 75.7 Igushik River 358,800 15.9
Nushagak/~·1ul chatna 15,300 0.7 Nuyakuk River 154,600 6.9 Totals 2,256,500 100.0 4 Sockeye spawning ground distribution by major type of spawning area is shown on Table 9 and Figure 1. Beach spawners (.2 ocean age) represented a higher proportion of the total population than in previous years, while .3 ocean river spawners were lower. The exceptionally large sockeye escapement of 1,708,800 in 1974 was evenly distributed throughout the entire lake system. Spawning distri bution studies by the Fisheries Research Institute of the University of Washington confirmed that the 1974 sockeye distribution did not over-crowd available spawning grounds. Beachspawners were evenly distributed throughout the upper Hood RiYer
Lakes (Lakes Beverley, l~ikchall< and Kulik). From 1946 through 1973 these three lakes have averaged 192,000, 13,000 and 72,000 spawners respectively, while the
1974 total population estimates were 400,000 for Lake Beverley, 48,000 for l~ikchalk and 302,000 for Kulik (Table 2). Even with these large populations, over-crowding on the spawning grounds in these three lakes was minimal. Creek and river spawning was on par with long-term averages and/or were in the upper range of sockeye escapements for these areas. Percent fish accounted for by peak aerial estimates for the Wood River system is derived by dividing the sum of all peak survey estimates by the total escape ment as obtained from the tower count at the system outlet. Percent fish accounted for by peak aerial estimates in 1974 was 45.1 percent, which is somewhat lower than the mean average from 1960 through 1973 of 51.2 percent. The decrease in the per cent offish accounted for is explained by the increase of beach spawners. Peak survey estimates for major river areas between lakes are assumed to more nearly approach the total river spawning population than in the case of creek and beach spawning estimates. ·This assumption is made because: (l) duration of spawning in rivers is relatively short (August 25-September 5), which·allows viewing of nearly the total spawning population at peak of spawning, and (2) the broad rivers, with clear bank~ and limited depth provide conditions for viewing a higher proportion of fish present than in most creek and many beach areas. During two years when per cent of river spawning fish was high (196]:-56.3 percent and 1965-48.3 percent), the percent fish accounted for by aerial survey was also high (63.6 percent in 1961 and 5 64.6 percent in 1965). In 1974 the number of river spawning sockeye salmon was only 22.0 percent of the total population (Table 9). Beach fish have a longer spawning period than creek_and river fish, therefore fewer fish are available and accounted for by peak aerial estimates. In turn this results in a decrease of the percent fish accounted for by aerial means. Igushik Lakes The 1974 escapement of 358,800 sockeye salmon to the Igushik Lakes contributed 16 percent of the total Nushagak district escapement, and was 27 percent higher tnan the 20-year (1955-74) average escapement of 262,000. The Igushik Lakes system, which has a surface area of 27 square miles is second in importance in the Nushagak district and has contributed over 17 percent of the district escape ment since 1959. Peak aerial estimates of sockeye salmon for the Igushik Lakes system in 1974 is shown on Table 5, while Table 6 gives a summary of live peak counts by spawning area for 1954-1966 and 1974. As in the past, the Kathlene River, Ongoke River, Francis Creek and the westshore beaches of Lake Ualik were the most important spawning areas (Figure 2), contributing over 88 percent of the total system escapement. Lake Amanka, with light scattered spawning colonies, supports a relatively minor portion of the spawning population (Table 5). Distribution of spawners in the three major types of spawning areas is shown on Table 9. Large returns to the beach areas (especially the westshore of Lake Ualik) accounted for over 68 percent of the escapement, the highest ever recorded. Percent of the total escapement accounted for by peak aerial estimates in the Igushik system was 44.6 percent, which compares favorably with the past years av erage (1958-66) of 45.3 percent for this system. Ti kchi k Lakes The 1974 escapement of 154,600 sockeye salmon to the Tikchik Lake system con tributed 7 percent of the total Nushagak district escapement, and was 25 percent higher than the 20-year (1955-74) average escapement of 116,000. The Tikchik 6 Lake system has a surface area of 117 square miles and is third in importance in the Nushagak district, contributing over 9 percent of the district escape ment since 1959. Peak aerial estimates of sockeye salmon for the Tikchik Lakes system in 1974 is shown on Table 7, while Table 8 gives a summary of live peak counts by spawn ing area for 1954-1966 and 1974. Only the "Rapids" between Nuyakuk Lake and Lake Chauekuktul i and Allen River beach received a large number of returning spawners (Table 7 and Figure 3). Tik chik River and Cow Creek received disappointing escapements and all of the beach areas (excepting Allen River beach) appeared to have received light escapements. Spawner distribution in 1974 by major type of spawning habitat was very similar to the long-term average (Table 9). The number of fish accounted for by peak aerial estimates was only 25.3 per cent as compared to the past years average (1959-1966) of 40.7 percent. It is apparent that the September 1 beach survey date was too late to enumerate the peak of the beach spawning populations. Numerous instances of large numbers of dead spawned-out fish (not enumerated in the surveys) were observed throughout the lake beach areas adjacent to known important beach spawning populations in both Nuyakuk and Chauekuktuli Lakes. Further the extremely mild and warm weather resulted in considerable amounts of runoff from the glaciers which head the Portage Arm and l~irror Bay areas of Nuyakuk Lake. Glacial melt hampered observations considerably in Mirror Bay, where large numbers of fish have spawned in the past (Table 8). Had the surveys been conducted earlier, during the peak of spawning activity, and if the visability in the glacial bays had been better, the percent of fish accounted for by aerial observation would probably have been close to the long term average. Lake Nunavaugaluk-Togiak District Peak aerial estimates of sockeye salmon for Lake Nunavaugaluk (Snake River Lake), Togiak tributaries and the Kulukak River system are shown on Table 3, while 7 the estimated total populations are shown on Table 4. See Figures 4-6 for spawning distribution by system. \4ith the exception of the Snake River system, where a weir was used for enumeration purposes, the other system escapements were estimated using the proportion factor method discussed earlier. The Snake River sockeye escapement of 15,300 was slightly below the 20-year (1955-74) average escapement of 17,200, while the escapements to the Togiak tributaries and Kulukak system we.re on par with past averages. KING SALMON King salmon aerial surveys in the Nushagak drainage were flown for the seventh consecutive year on a comparable basis to establish relative escapement indicies in key index streams important to spawning king salmon stocks. The weather con ditions were generally good to excellent and all systems important to spawning king salmon were surveyed. Table 10 lists the estimated escapement by system for 1969-74 in the Nushagak district. Generally speaking, the 1974 king escapement was excellent, perhaps on par with the large observed escapement tn 1968. However, like 1973, the 1974 escapement was a much higher proportion of the total king salmon return. Commer cial catches (the best index to run size) in 1968, 73 and 74 were 78,200, 30,500, and 32,100 respectively. After examination of commercial (32,100) and subsistence (7,900) catches as well as partial tower counts from the counting station at Ekwok (6,600) and aerial survey observations (24,000), the total king salmon escapement to all Nushagak systems was estimated to be about 50 to 70,000. Table 11 shows a comparison of peak king_ salmon aerial counts in six selected key index streams.in the Nushagak district. These six streams were picked as "index" streams, due to their clear water characteristics and longer series of "fairly" unbroken data. Peak year counts were obtained in most index streams in 1974, when index stream escapement indicies were compared with previous years (Table 11). In the Togiak district all important king and chum salmon streams are flown each year to assess escapements of both species. In 1974, all areas important to 8 spawning king salmon were surveyed on July 31 and August 1 (Table 12). The 1974 escapement was similar in distribution and abundance with 1973, with the exception of an increase in the Togiak River spawning population. Like Nushagak, the 1974 Togiak king escapement was a much higher proportion of the total king return. Aerial escapements were similar in both years (Table 12), while the 1974 commercial harvest (10,800) was similar to the harvest in 1973 (10,900).
CHU~1 SAL~10N For the seventh consecut_iveyE:ar aerial surveyswere conducted in all _of the _ streams in the Togiak district drainage with substantial numbers of_spawning chum salmon. Table 13 summarizes and compares data collected from 1969 through 1974. The method of deriving total chum salmon spawning populations in each area has been fully documented in the 1968 and 1969 spawning ground reports. In 1974 a factor of 2.0 was applied to all streams (Table 14). Using the factor method to determine the total estimated spawning population from aerial survey counts, the total district escapement was estimated at 161,400 chum salmon (Table 14). ] ~. J J J
J J
J l ~J J J
] '
J 5 . 0 5 ~ ;l Scale in Miles I Indicates spawning .. 1 .. • distribution ~ ] F:igur<;> 1.--Spawning distribution in the Wood River Lakes system, Bristol Bay, Alaska, ] 10
0 s Scale in Miles
Indicates spawning • distribution
Figure 2.--Spawning distribution in the Igushik Lakes system, Bristol Bay, Alaska J
J
J .rJ Indicates spawning ~ • distribution Figure3 .--Spawning distribution :in the Tikchik Lakes system, J .Bristol Bay, Alaska J '"
-'
0 s Scale in Miles
Ind.icates spawning • distribution Figure 4---Spawning distribution in the Lake Nunavagaluk system; Bristol Bay, Alaska · L.J L.J.L.J ~ ONGIVI"HUK ~I<.E
. Indicates spawning • distribution
Figure 5.--Spawning distribution in the Togiak tributaries, Bristol Bay, Alaska 5 0 Scale in Miles N
.• Indicates spawning distribution
Figure 6 .--Spawning distribution in the Kulukak La:ke system, Bristol Bay, ·Alaska ' lliA
APPENDIX 15 TABLE 1. Comparison of peak live sockeye salmon spawning ground aerial estimates in the Wood River Lakes, 1972-74.
1972 1973 1974 Area Date No. Est. Date No. Est. Date No. Est. Wood River 8/25 . 1,500 8/21 800 8/17 26,000 Lake Aleknagik: Eagle Creek 8/ 5 20oll 8/ 9 4oll 7/28 1,3ooV; Hansen Creek 8/ 5 530¥t 8/ 5 21 o.l/ 8/ 1 3,12~ Happy Creek 8/10 7701 8/12 1ool/ 7/31 2,13~ Bear Creek 8/ 7 1 , nail 8/11 570~ 8/ 7 3,43 Yako Creek 8/ 4 470.ll 8/ 4 60.l/ 7/28 670.ll Whitefish Creeks 8/ 6 70.ll 8/16 201/ 8/ 5 260.ll Whitefish Creek Lake 8/30 30 8/ 5 200 Ice Creek 8/12 5,560.ll 8/10 5,700 8/10 7,300 Youth Creek 8/ 5 100 Sunshine Creek 8/ 8 1 ,200 8/13 1 ,600 8/10 1 ,500 Northshore Beaches 8/31 570 8/30 1,030 8/31 1 ,610 Southshore Beaches 8/31 600 8/30 360 8/31 520 Yako Beach 8/31 300 8/30 100 8/31 7,600 Lake Aleknagik Total 12,040 9,820 29,740 Agulowak River and Lower River Bay 9/ 1 45,000 8/30 100,000 8/31 96,000 Lake Nerka: Fenno Creek 8/14 1 ,ooo.l/ 8/19 190.ll 8/ 5 3,400 Upper River Bay, N.W. 8/31 500 8/30 330 8/31 470 Upper River Bay, S.E. 8/31 2,000 8/30 1 '1 00 8/31 7,000 Allah Creek to Ross Creek 8/31 850 8/30 1,830 8/31 17,800 Pike Creek 8/ 8 1,200 8/13 420 8/10 16,000 Stovall Creek 8/22 . 370.l/ 8/13 230 8/10 4,300 Stova 11 Lake 8/16 500 8/13 0 8/17 0 Bear Creek 8/8 200 8/13 50 8/10 4,300 Bear Creek Lake 8/16 100 8/13 100 8/17 200 Teal Creek .8/13 50 8/10 4,600 Portage Creek 8/22 loll N4-N6 Beach to River Bay 8/31 7,500 8/30 3,040 8/31 12,440 Pick Creek Beach 8/31 100 8/30 350 8/31 400 Pick_Creek 8/16 7,130.l/ 8/13 1 ,400 8/10 13,900 Elva Creek Beach 8/31 700 8/30 8/31 2,6501/ Elva: Creek 8/17 21 o.ll 8/13 6~~ 8/11 260-!-' Amakuk Arm 8/31 300 8/30 150 8/31 740 Amakuk Arm to Ott's Bay 8/31 850 8/30 300 8/31 2,650 Ott's Bay · 8/31 1 '1701 8/30 260.l/ 8/31 4,500 Kema Creek 8/21 56 0J 8/23 280 8/17 5,600 Kema Creek Lake 8/16 0 8/17 0 Hidden Lake Creek 8/23 670.ll 8/21 40.l/ 8/18 1 '53Q.l/ Hidden Lake 8/16 700 8/17 300 Anvil Bay 9/ 7 8,500 8/30 2,700 8/31 21,950 Anvil Bay to Elbow Pt. 8/31 3,980 8/30 720 8/31 7,850 Elbow Pt. to Lynx Creek 8/31 2,450 8/30 330 8/31 2,950 Lynx Creek to Teal Creek 8/31 200 8/30 60 8/31 780
(continued)
-·' 16 . TABLE 1. (continued)
1972 1973 1974 Area Date No. Est. Date No. Est. Date No. Est. Lynx Creek 8/17 1 ,Gooll 8/18 280 8/17 2,330l/ Lynx Lake 8/31 4,300 8/30 1,400 8/31 25,870 Lake Nerka Tota 1 47,650 16,290 164,770 Little Togiak River 8/25 7,500 8/21 4,500 8/17 8,000 Little Toqiak Lake: Northshore Beaches 8/31 750 8/30 1,060 8/31 2,240 Sot.ithshore Beaches 8/31 1,200 8/30. 1,370 8/31 1,640 D Slough Beach 9/ 7 3,100 8/30 2 '1 00 8/31 13,000 Little Togiak Creek 8/21 300 C Creek 8/ 4 4601/ Little Togiak Lake Total 5,050 4,530 17,640 Agulukpak River 9/ 1 60,000 8/30 50,000 8/31 130' 000 Lake Beverley: Hardluck Bay 9/ 7 8,500 8/30 1 '970 8/31 52,39oY Sam's Beach 8/31 400 8/30 70 8/31 3,500 Golden Horn 8/31 600 8/30 230 8/31 3,8802/ Si 1ver Horn 9/ 7 4,450 8/30 510 8/31 50' 040.::. Bl2 Beach 8/31 1,400 8/30 230 8/31 27,000 B9 Beach 8/31 0 8/30 0 8/31 3,110 Tsun Creek 8/25 300 8/30 1501/ 8/17 1 , Goo Moose CrPek 8/16 1,400 8/19 52(0 8/16 2,25Q.!./1 Hope Creek 8/16 700 . 8/21 40 8/17 1,200 Hope Creek Lake 8/16 100 8/21 0 8/17 200 Lake Beverley Total 17,850 3,720 145,170 Peace River 8/25 700 8/21 200 8/17 5,000 Lake Mikchalk: Narrows 8/16 300 8/21 80 8/31 700 Northshore Beaches 8/31 300 8/30 110 8/31 15, 79oY Southshore Beaches 8/31 1,100 8/30 350 8/31 1,150
Lake ~1i kcha 1 k Tota 1 1 ,700 540 17,640 Wind River 8/25 200 8/21 70 8/21 2,600
(continued) 17
TABLE 1. (continued)
1972 1973 974 Area Date No. Est. Date No. Est. Date No. Est. Lake Kulik: K5 Creek to Grant River 8/31 130 8/30 40 8/31 4,760 Grant River to Kll Creek 8/31 1,400 8/30 40 8/31 23,000 Kll Creek to KlO Creek 8/31 2,900 8/30 900 8/31 11 ,000 KlO Creek to K4 Creek 8/31 2,800 8/30 620 8/31 39,500 K4 Creek to K2 Creek 8/31 1,200 8/30 280 8/31 10,880 Southshore Beaches 8/31 470 8/30 130 8/31 15' 230 Miscellaneous 8/31. 0 8/30 110 8/17 5,500 Lake Kulik Tota 1 8,900 2,1:20 109,870 Grant River 8/26 3,530ll 8/21 1,500 8/17 17,700
\~ood River Lakes Total 211,620 194,090 . 770,130
lJ Ground survey counts by FRI personnel (only live spawning fish were included).
~ Survey was prior to peak of spawning, hence counts were adjusted to give better estimate of population. 18
TABLE 2. Total population estimates of sockeye salmon escapement in the Wood River Lakes by major spawning area, 1972-74.
1972 1973 1974 Area Number Percent Number Percent Number Percent Hood River 2,500 0.6 1,200 0.4 40,000 2.3 Lake Aleknagik 35,000 8.1 31,000 9.4 82,000 4.8 Agulowak River 60,000 13.9 130,000 39.3 120,000 7.0 Lake Nerka 138,000 32.1 51,500 15.6 453,000 26.5 Little Togiak River 15,000 3.5 9,000 2.7 16,000 0.9 Little Togiak Lake 14,000 3.3 14,000 4.2 48,000 2.8 Agulukpak River 75,000 17.4 70,000 21.2 150,000 8.8 Lake Beverley 51 '1 00 11.9 11 ,600 3.5 400,000 23.4 Peace River 1 ,500 0.3 500 0.1 10,000 0.6 Lake Mikchalk 5,000 1 . 2 2,000 0.6 47,800 2.8 Wind River 500 0.1 200 0.1 5,000 0.3 Lake Kulik 26,000 6.0 7,000 2.1 302,000 17.7 Grant River 7,000 1.6 2,500 0.8 35,000 2.1 Wood River Lakes Totals 430,600 100.0 330,500 100.0 1,708,800 100.0 ll Factor of 2.75 was applied to sum of creek and beach spawners (see text). 19 TABLE 3. Comparison of peak live sockeye salmon spawning ground estimates in Lake Nunagaugaluk, Togiak tributaries and Kulukak River systems, 1972-74.
1972 1973 1974 Area Date No. Est. Date No. Est. Date · No. Est. Snake River 8/3D 20 8/21 60 Snake River to Eagle Creek 8/31 100 8/30 50 8/31 1 • 750 Eagle Creek 8/ 8 20 8/10 10 8/ 5 130 Eagle Creek Lake 8/ 8 20 . 8/30 30 8/31 220 Hestshore Beaches 8/31 . 280 8/30 210 8/31 4,220 Kill ian Creek 8/ 8 300 8/10 70 8/ 5 2,1 DO Eastshore Beaches 8/31 280 8/30 130 8/31 2,710 East Creek 8/ 8 20 8/10 0 8/ 5 70 Southshore Beaches 8/31 0 8/30 20 8/31 160 Lake Nunavaugaluk Total 1 ,020 540 11 ,420 Togiak River 8/13 6,000 Gechiak Lake 8/16 200 8/14 1,800 8/13 1,700 Ongivinuck Lake 8/16 1,700 8/14 1,900 8/13 1,500 Pungokepuk Lake 8/16 350 8/14 1,900 8/13 1 , 1 DO Togiak Tributaries Total 2,250 5,600 10,300 Kulukak System 8/16 200 8/14 1,600 8/13 750 Title Creek Ponds 8/16 . 1 • 500 8/14 2,400 8/13 1 ,700 Kulukak System Total 1,700 4,000 2,450
TABLE 4. Total population estimates of sockeye salmon escapement in Lake Nunavaugaluk, Togiak tributaries and Kulukak River systems, 1974.
Aerial Estimate of System Estimates Total Populationl/
Kulukak River & Lake 750- 1,500 Tithe Creek Ponds 1 ,700 3,400 Total Kulukak 2,450 4,900 Togiak River 6,000 12,000 Gechiak Lake 1,700 3,400 Ongivinuck Lake 1,500 3,000 Pungokepuk Lake 1,100 2,200 Total Tributaries 10,300 20,600 l! Estimate of total population based on aerial estimates and factor of 2.0, which accounts for fish not counted (schooled and dead fish) on the peak surveys. 20 TABLE 5. Peak live sockeye salmon spawning ground aerial estimates in the Igushik Lakes system, 1974.
1974 Area Date No. Est. Igushik River 8/ 5 200 LAKE Ar4ANKA: Longa rm Creek 8/ 5 1 '600 Middle Creek 8/ 5 60 South Creek 8/ 5 200 Amanka Beaches 8/31 1 '71 0 LAKE AMANKA TOTAL 3,570 KATHLENE RIVER: Lower River 8/10 6,500 Upper River· 8/10 20,oooll Ongoke River 8/10 10,500 KATHLENE. RIVER TOTAL 37,000 LAKE UALIK:
Frances Creek 8/15 9,0002/ Westshore Creeks 8/ 5 2,ooo=. Westshore Beaches 8/31 96,0001/ Eastshore Creeks 8/ 5 5oo.Y Eastshore Beaches 8/31 11,590 LAKE UALIK TOTAL 119,090 IGUSHIK LAKES TOTAL 159,860 l/ Surveys did not accurately assess spawning population, therefore counts were adjusted to give better estimate of population. y Areas not surveyed, populations estimated on basis of past data using proportion method. ' ' r , c___] L_j r L_____:_:J C:=J [_;J . [__.J L_j L_] [__.J L_] L_J '---.; L_] [_J ~ LJ ~ ~ABLf-~ Summary of peak l1ve sockeye salmon spawn·ing ground aerial estimates in the Igushik Lakes system, 1954-66 and 1974.
Esca~ement Estimates b~ Year and Area Area 1954 1955 1956 1957 1958 1959 1960 Igushik.River LAKE AMANKA: Longa rm Creek 15,000 Middle Creek 500 South Creek. 1 ,000 Amanka Beaches 1,600 LAKE AMANKA TOTAL 500 4,450 2,050 2,350 2,500 22,320 18.1 00 KATHLENE RIVER: Lower River "13. 000 4,000 11,000 32,000 20,000 Upper River 15,000 6,000 3,900 15,000 5,000 Ongoke River 21,500 6,300 14,500 40,000 35,000 KATHLENE RIVER TOTAL 5,000 16,400 49,500 16,300 29,400 87,000 60,000 LAKE UALIK: Francis Creek 5,000 33,000 40,000 5,200 4,500 30,000 25,000 Westshore Creeks 2,000 Westshore Beaches 8,000 47 ,080 63,500 26,400 19,000 120,000 108,000 Eastshore Creeks 500 Eastshore Beaches 1,800 10,970 2,550 840 1,800 9,200 2,000 LAKE UALIK TOTAL 14,800 91,050 106,050 32,440 25,300 ]59,200 137,500
IGPSHIK LAKE TOTAL 20,300 111,900 157,600 51 ,090 57,250 268,520 215,600 .,...N TOTAL POPULATION ESTH~ATE BY YEAR 80,000 500,000 400,000 130,000 107 ,478 643,808 495,087 PERCENT ACCOUNTED FOR BY PEAK 25.38 22 .3·8 :19.40 39.30 5.3.27 41 .71 43.55 SURVEY ESTH1ATES ;··· "l r. .., - .. ·L__:-··- LJ LJ L.J··· C:=J . L...:J LJ C:.____) L.J LJ ~ LJ [__J c..:..:.:J [.:__] ~ ---.1 LJ TABLE 6. (continued)
Esca[Jement Estimates b,y Year and Area Area 1.961 1962 1963 1964 1965 1966 1974 I gus hi k River 100 140 40 50 200 0 200 LAKE At-lANKA: Longarm Creek 4,000 430 100 600 2,600 3,500 1,600 t~idd1e Creek 500 30 400 50 200 600 60 South Creek 1,000 10 150 1 ,300 160 1,800 200 Amanka Beaches 800 60 _1 ,040 1,150 1,120 900 1 '71 0 LAKE At-lANKA TOTAL 6,300 530 1,690 3 '1 00 4,080 6,800 3,570 KATHLENE RIVER: Lower River 100 1,100 900 9,000 6,400 14,500 6,500 Upper River 20,000 640 20,000 11 ,000 7,600 10,500 20,000 Ongoke River 18,500 1,900 ---340 7,80b 7 '1 00 28,200 10,500 KATHLENE RIVER TOTAL 48 ,'600 3,640 21,240 27,800 21 '1 00 53,200 37,000 LAKE UALIK: Francis Creek 20,000 700 1,330 4,000 6,300 9' 100 9,000 Hestshore Creeks 1 ,000 150 100 2,500 1,800 450 2,000 l~estshore Beaches 36,500 2,210 17,340 20,000 40,000 19,360 96,000 Eastshore Creeks 400 80 150 100 420 0 500 Eastshore Beaches 2,650 190 _1 ,610 1,700 6,600 3,000 11 '590 LAKE UALIK TOTAL 60,550 3,300 20,530 28,300 55' 120 31,910 119,090
IGUSHIK LAKE TOTAL 115,550 7,640 43,500 59,250 80,500 91,910 159,860
TOTAL POPULATION N. ESTit-lATE BY YEAR 294,252 15,660 92 '184 128,532 180,840 206,360 358,752 N PERCENT ACCOUNTED FOR BY PEAK 39.27 48.79 47.19 46.10 44.51 44.54 44.56 SURVEY ESTIMATES 23
TABLE 7. Peak live sockeye salmon spawning ground aerial estimates in the Tikchik Lakes system, 1974.
1974 Area Date No. Est. Nuyakuk River TIKCHIK LAKE: Creek A 8/13 1 ,200 Creek B 8/13 2,500 Creek C TIKCHIK LAKE TOTAL 3,700 TIKCHIK RIVER: Tikchik River 8/13 3,800 Cow Creek 8/13 2,600 TIKCHIK RIVER TOTAL 6,400 NUYAKUK LAKE: Northshore Beaches 9/l 810 Southshore Beaches 9/l 290 Portage Arm 9/l 120 Mirror Bay 9/l 260 Rapids 8/13 5,100 NUYAKUK LAKE TOTAL 6,580 LAKE CHAUEKUKTULI: Creek No. 1 8/13 0 Allen River Beach 9/l 20,oooll Allen River 8/13 150 Northshore Beaches 9/l 2,220 Southshore Beaches 9/l 60 LAKE CHAUEKUKTULI TOTAL 22,430 TIKCHIK LAKES TOTAL 39,110 lf Surveys did not accurately assess. spawning population, therefore counts were adjusted to give better estimate of population. r -, C=.J [ _....J L..J [..:.__] L-J L.J L.J L.._l LJ c:.:.:J L.J L..J L_J c...-J Summary ot peak l1ve sockeye salmon spawning ground aerial estimates in the Tikchik Lakes system, 1954-66 and 1974.
Escapement Estimates by Year and Area ~~A~r~e~a~~------1~9~5~4 ______~1~95~5~----~1~95~6~- 1957 1958 1959 1960 Nuyakuk River TIKCHIK LAKE: Greek A .. 500 1 ,ODD 1 DO 900 8,500 780 2,000 Creek B 390 570 500 890 2,200 2,610 5,650 Creek C 50 TIKCHIK LAKE TOTAL 890 1 ,570 600 1,790 10,700 3,390 7,700 TIKCHIK RIVER: Tikchik River 5,000 500 7,500 15,000 16,000 5,400 12,000 Cow Creek TIKCHIK RIVER TOTAL 5,000 500 7,500 15,000 16,000 5,400 12,000 NUYAKUK LAKE: Northshore Beaches 410 1 ,020 1 '250 310 820 Southshore Beaches 100 Portage Arm 100 250 r~irror Bay 900 Rapids 250 250 1 , 1DO 4,000 5,000 50 300 NUYAKUK LAKE TOTAL 250 250 1 ,610 5,270 6,250 360 2 '120 LAKE CHAUEKUKUTULI : · Creek No. 1 20 30 0 10 150 Allen River Beach 170 1,130 1,500 2,400 20,000 3,550 17,500 Allen River 0 250 1 ,400 900 50 250 Northshore Beaches 410 500 2,670 1,630 4,760 Southshore Beaches 1 , 1 DO LAKE CHAUEKUKUTULI TOTAL· 190 1,160 2 '160 4,310 23,570 :5,230 23,760 TIKCHIK LAKE TOTAL 6,330 3,480 11 ,870 26,370 56,520 14,380 45,580 TOTAL POPULATION ESTH1ATES BY YEAR 29,000 16,000 30,000 67,000 196,000 48,861 145,500 PERCENT ACCOUNTED FOR BY PEAK SURVEY ESTIMATES 21 .83 21.75 39.57 39.36 28.84 29.43 31 .33 (------, 1_._] L.--1 l__j !__j
Escapement Estimates by Year and Area ~~AIR~EA~~------~19~6~1 ____~1~96~2~-----1~9~63~ 1964 1965 1966 1974 Nu_vakuk River 160 100 400 0 TIKCHIK LAKE: Creek A 800 600 5,000 800 360 2,400 1 ,200 Creek B 1,400 620 10,000 2,000 10,000 2,600 2,500 Creek C 50 10 30 200 100 TIKCHIK LAKE TOTAL 2,250 1,230 15,000 2,830 10,560 5' 100 3,700 TIKCHIK RIVER: Tikchik River 10,000 1,840 50,000 2,750 13,200 28,600 3,800 Cow Creek 1,800 10,000 2,600 TIKCHIK RIVER TOTAL 10,000 1,840 50,000 2,750 15,000 38,600 6,400 NUYAKUK LAKE: Nor.thshore Beaches 1 ,070 420 320 6,600 4,510 1 ,370 810 Southshore Beaches 970 600 300 7 '1 00 13,320 2,680 290 Portage Arm 200 1,100 1,180 230 120 t1i rror Bay 730 230 650 2,300 19,600 2,150 260 Rapids 50 1,750 _1,500 600 750 1 '200 5,100 NUYAKUK LAKES TOTAL 2,820 3,000 2,970 17,700 39,360 7,630 6,580 LAKE CHAUEKUKTULI : Creek No. 1 10 30 100 50 100 0 0 Allen River: Beach_ .... 10,50.0. __ .. 8,400 21,000 20,500 24,500 18,400 20,000 Allen River .. ··· 500 390 200 250 320 650 150 Northshore Beaches 800 670 2,900 6,400 4,640 1,870 2,220 Southshore Beaches 500 170 240 900 310 110 60 LAKE CHAUEKUKTULI TOTAL 12,310 9,660 24,440 28,100 29,870 21,030 22,430
~T~IK~C~HI~K~LA*K~E~T~O~TA~L~----~2~7~,3~8~0 ____~1~5~,8~9~0 ___ 9.~2,~4~1~0 _____·5~1~·~48~0~--~9~5~,1~9~0 ____~7~2,~3~6~0 _____3~9~,~11~0~--- N TOTAL POPULATION c.n -i Total Pop. Est. Year Creeks Beaches Rivers bX Tower Count WOOD RIVER LAKES SYSTEM 1~59 32.8 50.3 16.9 2,209,300 60 27.4 55.5 17 .1 1,016,100 61 11 .4 32.3 56.3 460,700 62 24.0 65.2 10.8 873,900 63 12. 1 68.5 19.4 721,400 1964 18.9 64.0 17.1 1 ,076,100 65 40.6 11 .1 48.3 675,100 66 16.4 54.9 28.7 1 ,208,700 67 9.3 66.2 24.5 515,800 68 9.9 50.8 39.3 649,300 1969 8.6 42.4 49.0 604,300 70 14.0 52.4 33.6 1 , 162,000 71 11.2 56.8 32.0 851,200 72 17.4 45.1 37.5 430,600 73 11 . 5 23.9 64.6 330,500 1974 14.1 63.9 22.0 1,708,800 Average 17.5 50.2 32.3 905,900 IGUSHIK LAKES SYSTEt.,l/ 1959 34.30 48.20 17.50 643 ,BOO 60- 35.50 52.90 11 . 60 495,100 61 39.34 34.54 26.12 294,300 62 43.40 31.55 25.05 15,700 63 6.21 44.81 48.98 92,200 1964 27.59 38.57 33.84 128,500 65 23.08 59.28 17.64 180,800 66 47.49 27.20 25.31 206,400 74 14.93 68.37 16.70 358,800 Average 30.20 45.05 24.75 268,400 TI KCHI K LAKES SYSTEt¥f 1959 24.10 37.90 38.00 48,900 60 19.40 53.10 27.50 145,500 61 11 .19 49.63 39.18 79,800 62 9.49 64.66 25.85 37,900 63 19.69 29.95 50.36 166,600 1964 5.59 87.22 7.19 103,200 65 11 .20 .· 71 . 50 17.30 203,100 66 20.87 37.05 42.08 161,000 74 16.11 60.75 23.14 154,600 Average 15.29 54;64 30 ;07 ...... ·122 ;300 1/ Ongoke River Population included 1n creek spawmng category. . . . 2/ Raoids between Nuyakuk Lake & Lake Chauekuktul i is included in nver spawn1ng cat. . . . . ' ...... ~ . TABLE 10. Comparison of peak live king salmon spawning ground aerial estimates in the Nushagak district, 1969-74 1969 1970 1971 1972 1973 1974 Stream Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Es· NUSHAGAK DRAINAGE l•lood River 8/20 50 9/1 0 Wood River Streamsl! 8/6-16 70 8/22-9/4 0 8/13-9/1 0 8/5-17 20 Igushik River 8/5 100 8/3 40 8/3 40 8/l 100 Snake River 8/6 60 8/5 150 8/3 60 8/3 110 8/1 130 Weary River - 8/5 230 8/3 60 8/3 50 8/l 40 Nushagak River: (TOTAL) 8/8 (16oY) - 8/4 (1,210) 8/1-3 ( 5,270: Portage Creek to Ekwok Ekwok to ~1ulchatna R. r4ulchatna R. to Nuyakuk R. 8/8 60 8/1 1,000 Nuyakuk R. to Klutispaw Cr. 8/3 720 Klutispaw Cr. to King Salmon R. 8/4 300 8/3 1,620 King Salmon R. to Chichitnok R. 8/8 100 8/4 180 8/3 380 Chichitnok R. to Big Bend 8/4 730 8/3 1,220 Big Bend on North 8/3 330 Muklung River 8/2 520 8/5 5go 8/3 280 8/3 150 8/1 1,010 Iowithla River 8/2 580 8/5 700 8/3 390 8/3 170 8/1 860 Kokwok River 8/7 90 8/5 110 8/3 80 8/3 60 . Kl utuk Creek 8/7 50~ 8/5 130 8/3 .·· 160 Napotoli Creek 8/8 "20I/ Nuyakuk River 8/8 70 8/7 240 8/4 70 8/8 140 8/1 750 Tikchik River 8/3 50 Klutispaw Creek 8/8 90 8/7 320 8/4 280 8/8 380 8/3 440 King Salmon River 8/8 670 8/7 1,060 8/4 900 8/8 1 ,470 8/3 2,000 Chichitnok River 8/8 100 --- 8/4 100 8/8 110 8/3 350 NUSHAGAK DRAINAGE SUB-TOTAL 2,480 3,680 910 2,880 2,300 11,240 ~"' (continued) TABLE 10. (continued) 1969 1970 1971 1972 1973 1974 Stream Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Es ~1ULCHI\TNA DRAINAGE Mulchatna River: (TOTAL) 8/4 (oY) - 8/2 (5,330 Nushagak R. to Stuyahok R. 8/2 870 Stuyahok R. to Koktuli R. 8/2 540 Koktuli R. to Mosquito Cr. 8/4 0 8/2 2,160 Mosquito R. to Chi.lchitna R. 8/2 1,590 Chilchitna R. Chilikadrotna R. 8/2 90 Chilikadrotna R. to Turquiose Lk. 8/2 80. Stuyahok River 8/7 1,22~ 8/7 1,900 8/4 610 8/8 1. 220 8/2 2,300 Old Man Creek 8/7 8/2 40 Koktuli River 8/7 1,6002/ 8/7 1 ,500 8/4 1,450 8/8 950 8/2 3,920 t·1osqui to Creek 8/7 110- 8/2 710 Chilikadrontna River 8/4 ---=oY 8/2 450 Mulchatna drainage sub-total 2,930 3,400 2,060 2,170 12.750 .NUSHAGAK/MULCHATNA TOTAL 5,410 _] ,080 910 4,940 4,470 23,990 --- lf Includes Ice and Sunshine Creeks and Peace and Hind River·s. y Aerial coverage not complete. N 00 29 TABLE 11. Comparison of peak live king salmon spawning ground aerial estimates in selected key index streams of the Nushagak district, 1959-74. Aerial Surve,y Esca~ement Indicies Stream Year Muklung Iowithla Kl utis~aw King Salmon Stuxahok Koktuli 1959 300 230 520 740 660 430 60 160 140 700 62 80 470 63 230 1964 1,000 100 700 1 ,410 3,300 65 570 140 850 67 350 200 2,500 3,300 68 750 850 310 1 ,000 2,470 4,220 1969 520 580 90 670 1 ,220 1,600 70 590 700 320 1 ,060 1 '900 1,500 71 280 390 72 150 170 280 900 610 1,450 1973 380 1 ,470 1 '220 950 74 1 ,010 860 440 2,000 2,300 3,920 TABLE 12. Comparison of peak live king salmon spawning ground aerial estimates in the Togiak district, 1969-74. 1969 1970 1971 ... .1972 1973 1974 Stream Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Es Togiak River: (Total) 7/29 {2,10o)l!7;3o (1 ,950) 8/2 (3,070)118!2 (2,490) 8/2 (2,520) 7/31 (3,82( Togiak Bay to Gechiak Cr. 7/30 270 8/2 250 8/2 210 7/31 61C Gechiak Cr. to Pungokepuk Cr. 7/30 260 8/2 400 3/2 370 7/31 65( Pungokepuk Cr. to Kashaiak R. 7/30 230 8/2 610 8/2 560 7/31 83( Kashaiak R. to Narogurum R. 7/30 210 8/2 320 8/2 270 7/31 30C Narogurum R. to Ongivinuk R. 7/30 170 8/2 290 8/2 530 7/31 57C Ongivinok R. to Togiak Lk. 7/30 810 8/2 620 8/2 580 7/31 860 Gechiak Creek 7/31 440 7/30 570 8/2 980 8/2 1,320 8/2 470 7/31 62C Pungokepuk Creek 7/31 100 7/30 50 8/2 150 8/2 200 8/2 110 7/31 200 Kashaiak River 7/31 200 7/30 60 8/2 220 8/2 210 8/2 220 7/31 120 Narogurum River 7/31 260 7/30 170 8/2 180 8/2 170 8/2 140 7/31 170 Ongivinuk River 7/31 370 7/30 310 8/2 220 8/2 220 8/2 220 7/31 220 Kipnuktuli Creek 7/31 20 No Name Creek 7/31 10 Ungalikthluk River 7/31 280 8/3 470 8/3 470 8/2 120 8/3 280 7/31 150 Kukayachagak River 7/31 60 8/3 50 8/3 220 8/3 160 8/3 30 8/ 1 30 Kulukak River 7/31 260 8/3 1,490 8/3 2,360 8/3 650 8/3 440 8/ 1 510 TOTAL 4,100 5,]20 7,870 5,540 4,450 5,840 :lJ Spawner distribution by area within Togiak River not ava"ilable. "c TABLE 13. Comp~rison of peak live chum salmon spawning ground aerial estimates in the Togiak district, 1969~74. 1969 1970 1971 1972 1973 1974 Stream Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Est. Date No. Es Slug River 7/29 5,200 8/3 . 14,400 8/2 23,200 8/2 8,000 8/2 2,700 7/31 1 'l 00 Pierce Creek 7/29 800 8/3 1,400 8/2 2,400 8/2 900 8/2 700 7/31 100 South Creek (Hag. Is.) 7/29 200 8/3 l ,800 8/2 1,500 8/2 1,700 8/2 700 7/31 300 North Creek (Hag. Is.) 7/29 700 8/3 l 'l 00 8/2 :2,600 8/2 '1,400 8/2 3,100 7/31 l 'l 00 Osviak River 7/29 5,200 8/3 6,700 8/2 11,000 8/2 13,400 8/2 9,000 7/31 5,600 Matogak River 7/29 5,400 8/3 6,300 8/2 9,300 8/2 4,000 8/2 3,400 7/31 2' l 00 Quigmy River 7/29 1,000 8/3 1,700 8/2 3,400 8/2 3,700 8/2 2,200 7/31 1 ,400 Kurtluk River 7/29 50 8/3 60 ~ ~ Togiak River: (TOTAL) 7/29 (10,600)!1 7/30 (46,500) 8/2 (16,200)!!8/2 (21,300) 8/2 (22,700) 7/31 (38,700 Togiak Bay to Gechiak Cr. 7/30 23,000 8/2 11 ,800 8/2 9,500 7/31 15,900 Gechiak Cr. to Pungokepuk Cr. 7/30 6,500 8/2 1,400 8/2 2,700 7/31 3,900 Pungokepuk Cr. to Kashaiak R. 7/30 3,700 8/2 BOO 8/2 1 ,000 7/31 3,800 Kashaiak R. to Narogurum R. 7/30 700 8/2 100 8/2 100 7/31 300 Narogurum R. to Ongivinuk R. 7/30 3,300 8/2 2,900 8/2 4,900 7/31 4,400 Ongivinok R. to Togiak Lk. 7/30 9,300 8/2 4,300 8/2 4,500 7/31 10,400 Gechiak Creek 7/31 1,000 7/30 3,200 8/2 3,200 8/2 4,600 8/2 3,100 7/31 4,300 Punqokepuk Creek 7/31 100 7/30 700 8/2 600 8/2 1,300 8/2 l ,400 7/31 2,300 Kashaiak River 7/31 300 7/30 200 8/2 900 8/2 1 '500 8/2 3,900 7/31 1 '700 Narogurum River 7/31 100 7/30 400 8/2 200 8/2 100 8/2 100 7/31 100 Ongivinuck River 7/31 300 7/30 2,400 8/2 1,200 8/2 1,800 8/2 2,400 7/31 2,600 Ungalikthluk River 7/31 1,500 8/3 700 8/3 1,600 8/3 1,600 8/3 3,500 7/31 3,000 Kukayachagak River 7/31 5,400 8/3 7,700 8/3 l 0,000 8/3 10,800 8/3 14,000 8/l 8,400 Right Hand Pt. Cr. 7/31 400 8/3 500 Metervik Bay Creek 7/31 50 8/3 0 Kulukak River 7/31 4,400 8/3 ll ,400 8/3 14,800 8/3 6,800 8/3 7,400 8/l 7,900 Kanik River 7/31 0 8/3 0 TOTAL 42,700 l 07 '160 . l 02 'l 00 82,900 80,300 80,700 !f Spawner distribution by area within Togiak River not available. 32 TABLE 14. Total population estimates of chum salmon-escapement in the Togiak district, 1974 Aeri a 1 Est. of T6tal Stream Estimate Populationl/ Slug River 1 '1 00 2,200 Pierce Creek 100 200 South Creek (Hag. Is.) 300 600 North Creek (Hag. Is.) 1 '1 00 2,200 Osviak River 5,600 11 , 200 Matogak River 2,1 00 4,200 Quigmy River 1,400 2,800 Togiak River 38,700 77,400 Gechiak Creek 4,300 8,600 Pungokepuk Creek 2,300 4,600 Kashaiak River 1,700 3,400 Narogurum River 100 200 Ongivinuck River 2,600 5,200 Ungalikthluk River 3,000 6,000 Kukayachagak River 8,400 16,800 Kulukak River 7,900 15,800 Total 80,700 161 ,400 l! Estimate of total population based on aerial estimates and a factor of 2.0, which accounts for fish not counted (schooled and dead fish) on the peak aerial surveys. 33. APPENDIX A " . LIST OF BRISTOL BAY DATA REPORT SERIES No. Title and Author (s) 1. , "A Compilation of Notes and Biological Data from the Nushagak and Togiak Districts, Bristol Bay, 1956-64" by M. L. Nelson, 1965. 49 p. (Inter-Departmental Report) 2. "ACompiJaticm of Noi;esa_nd Bio]ggic;~l DP.ti! from tbe tlys_h_ag~k ·and To9iak Districts, Bristol Bay, 1965" by M. L. Nelson, 1965. 40 p. (InterDepartmental Report) 3. "A Compilation of Notes and Biological Data from the Nushagak and Togiak Districts, Bristol Bay, 1966" by D. L. Siedelman, 1967. 21 p. (Inter-Departmental Report) 4. "Spawning Ground Surveys in the Nushagak and Togiak Districts, Bristol Bay, 1968" by M. L, Nelson, 1967, 13 p. 5. "Spawning Ground Surveys in the Nushagak and Togiak Districts, Bristol Bay, 1968" by M. L. Nelson, 1968, 17 p. 6. "Bristol Bay Annual Staff Meeting, 1966" by Bristol Bay Staff, 1969. 13 p. (Inter-Departmental Report) 7. "Bristol Bay Annual Staff Meeting, 1967" by Bristol Bay Staff, 1969. 36 p. (Inter-Departmental Report) 8. "Bristol Bay Annual Staff Meeting, 1968" by Bristol Bay Staff, 1969. 26 p. (Inter~Departmental Report) 9. "Compilation of Notes and Biological Data from the Nushagak and Togiak Districts, Bristol Bay, 1967-68" by M. L. Nelson and D. A. Biwer, 1969. 34 p. (Inter-Departmental Report) · 10. "Status Report on Freshwater Commercial Fishing in Bristol Bay" by M. L. Nelson, 1969. 12 p. (Inter-Departmental Report) 11. "Determination of Migration Rates of Red Salmon of the Ugashik River, 1964" by S. Pennoyer and M. Seibel; 1969. 9 p. (Inter-Departmental Report) · 12 .. "Bristol Bay Gear License Statistics, 1929-67 -A Preliminary Report by D. A. Biwer, 1969. 39 p. (Inter-Departmental Report) 13. "Summary of Bristol Bay Tagging Studies, 1950-1966" by S. Pennoyer & M. L. Nelson, 1967. 86 p. (Inter-Departmental Report) 34 LIST OF BRISTOL BAY DATA REPORT SERIES (con't) No. Title and Author (s) 14. "1968 Reports to the Board of Fish and Game from the Bri sto 1 Bay Area (Anchorage Board Meeting)" by Bristol Bay Area ~1anagement and Research Staff, 1969. 47 p. (Inter-Departmental Report) 15. "Bristol Bay Intermediate High Seas Inshore Test Fishing Program, 1967" by M. Seibel, 1968. 31 p. (Inter-Departmental Report) 16. "Summary of Chum and Coho Salmon Stocks in the Togiak District of Bristol Bay" by M. L. Nelson, 1969. 17 p. 17. "Herring Fishery in the Togiak District of Bristol Bay" by D. A. Biwer, 1969. 18 p. (Inter-Departmental Report) 18. "Summary of 1960 Ugashik District and 1961 Egegik District Red Salmon Tagging Projects" Edited by M. L. Nelson, 1969. 21 p. (Inter-Departmental Report) 19. "Subsistence Fishing in Bristol Bay, 1963-1969" Edited by M. L. Nelson, 29 p. 20. "Bristol Bay Annual Staff Meeting, 1969" by Bristol Bay Staff, 1969. 27 p. (Inter-Departmental Report) 21. "Status of the Bristol Bay Salmon Fishery" by D. A. Biwer, 1969. 22 p. (Inter-Departmental Report) 22. "Bristol Bay Offshore - Inshore Test Fishing Program, 1968" by R. D. Paulus, 1969, 61 p. (Inter-Departmental Report) 23. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1969" by M.L. Nelson, 1970, 29 p. (Inter Departmental Report) 24. "Tikchik Lake System Commercial Freshwater Fishery (A Preliminary Report)" by C. Yanagawa, 1969. 50 p. 25. "Studies of Bristol Bay Fishery Resources" Edited by M. L. Nelson, 1970, 91 p. (Inter-Departmental Report) 26. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bri.stol Bay, 1970" by M. L. Nelson, 1970. 20 p. (Inter Departmental Report) 27. "Observations on ~1ortality of Red Salmon Eggs and Alevins in the Wood River Lakes, Bristol Bay" by M. L. Nelson, 1971. 25 p. (Inter-Departmental Report) 35 LIST OF BRISTOL BAY DATA REPORT SERIES (con't) " '· ' ------" 0 I ~ No. Title and Author (s) 28. "Bristol Bay Annual Staff Meeting, 1970" by Bristol Bay Staff, 1971. 12 p. (Inter-Departmental Report) 29. "Bristol Bay Annual Staff r~eeting, 1971" by Bristol Bay Staff, 1971. 40 p. (Inter-Departmental Report) 30. "Summary of Tagging Experiment Conducted in the Vicinity of llnimak Island, Alaska Peninsula" by L. Van Ray, 1971. 18 p. (Inter-Departmental Report) 31 . "Japanese High Seas Mothership Catches of Bristol Bay and Asian Sockeye Salmon" by S. Pennoyer, 1971. 21 p. (Inter-Departmental Report) 32. "Management and Associated Research Programs of the Bristol Bay Sockeye Salmon Fishery" by S. Pennoyer, 28 p. 33. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1971" by M.L. Nelson, 1971. 27 p. (Inter Departmental Report) 34. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1972" by M.L. Nelson, 1971. 27 p. (Inter Departmental Report) 35. "Bristol Bay Test Fishing Program, i969" by R. D. Paulus, 63 p. (Inter~Departmental Report) 36. "Bristol Bay Test Fishing Program, 1970" by R.D. Paulus, 50 p. (Inter-Departmental Report) 37. "Bristol Bay Annua 1 Staff r'1eeti ng, 1972" by Bri sto 1 Bay Staff, 28 p. (Inter-Departmental Report) 38. "Bristol Bay Test Fishing Program, 1971" by T.B. Namtvedt, 70 p. (Inter-Departmental Report) I' .. 39. "Fin.al Forecast of 1972 Bristol Bay Sockeye Run" by R.D. Paulus, 41 p. 40. "Compilation of Catch and Escapement Data of Nushagak and Togiak District King, Chum, Pink and Coho Salmon, 1969, 1970 and 1971" by M. L. Nelson, 1972. 56 p. (Inter-Departmental Report) 41. "Length-Girth Relationships Collected from Sockeye Salmon, Bristol Bay, 1970" by t~. L. McCurdy, 34 p. 36 LIST OF BRISTOL BAY DATA REPORT SERIES (con't) No. Title and Author (s) 42. "1972 Bristol Bay Test Fishing" by R. D. Paulus, 32 p. 43. "Egegik River System Spawning Ground Surveys" by ~1. L. Me Curdy, 276 p. ( Inter-Departmenta 1 Report) 44. "Bristol Bay Annual Staff Meeting, 1973" by Bristol Bay Manage ment and Research Staff, 8 p. (Inter~Departmental Report) 45. "Ugashik River System Spawning Ground Surveys" by M. L. McCurdy, 188 p. (Inter-Departmental Report) 46. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1973" by M. L. Nelson, 29 p. (Inter Departmental Report) 47 0 "Subsistence Fishing in Bristol Bay, 1963-]973" Edited by T. R. Schroeder, 27 p. (Inter-Departmental Report) 48. "Snake River Lake Field Operations Report, 1973" by t~. L. Nelson and R. E. Johnson, 50 p. (Inter-Departmental. Report) 49. "Bristol Bay Annual Staff Meeting, 1974" by Bristol Bay Manage ment and Research Staff, 17 p. (Inter-Departmental Report) 50. "Comments on INPFC Document 1350 (Japan, 1970) - Preliminary ADF&G Draft- Unpublished" by S. Pennoyer, 16 p (Inter-Depart mental Report) 51 0 "Bristol Bay Annual Staff Meeting, King Salmon, Alaska, 1974" by Bristol Bay Management and Research Staff, 14 p. (Inter Departmental Report) 52. "Spawning Ground Surveys in the Nushagak and Togiak Districts of Bristol Bay, 1974" by M. L. Nelson, 36 p. (Inter-Departmental Report).