Electronic tags and genetics explore variation in migrating steelhead kelts (oncorhynchus mykiss), Ninilchik river, Alaska

Canadian Journal of Fisheries and Aquatic Sciences

Volumn 68, Issue 1, 2011, Pages 1-16

  Nielsen, Jennifer L ^a   Turner, Sara M ^a   Zimmerman, Christian E ^a  

^a U S GEOLOGICAL SURVEY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BODY SHAPE; GENETIC VARIATION; LIFE HISTORY TRAIT; MIGRATORY POPULATION; POPULATION STRUCTURE; SALMONID; SEASONAL VARIATION; SPATIOTEMPORAL ANALYSIS; SPAWNING; TAGGING;

ALASKA; NINILCHIK RIVER; UNITED STATES;

ONCORHYNCHUS MYKISS;

EID: 79551676200     PISSN: 0706652X     EISSN: 12057533     Source Type: Journal    
DOI: 10.1139/F10-124     Document Type: Article

References (94)

1. Banks, M.A., Blouin, M.S., Baldwin, B.A., Rashbrook, V.K., Fitzgerald, H.A., Blankenship, S.M., and Hedgecock, D. 1999. Isolation and inheritance of novel microsatellites in Chinook salmon (Oncorhynchus tshawytscha). J. Hered. 90(2): 281-288. doi:10.1093/jhered/90.2.281.
2. Behnke, R. 1966. Relationships of the far eastern trout, Salmo mykiss Walbaum. Copeia, 1966(2): 346-348. doi:10.2307/1441145.
3. Bendall, B., Moore, A., and Quayle, V. 2005. The post-spawning movements of migratory brown trout Salmo trutta L. J. Fish Biol. 67(3): 809-822. doi:10.1111/j.0022-1112.2005.00786.x.
4. Berg, O.K., Thronæs, E., and Bremset, G. 1998. Energetics and survival of virgin and repeat spawning brown trout (Salmo trutta). Can. J. Fish. Aquat. Sci. 55(1): 47-53. doi:10.1139/cjfas-55-1-47.
5. Block, B.A., Dewar, H., Blackwell, S.B., Williams, T.D., Prince, E.D., Farwell, C.J., Boustany, A., Teo, S.L., Seitz, A., Walli, A., and Fudge, D. 2001. Migratory movements, depth preferences, and thermal biology of Atlantic bluefin tuna. Science (Washington, D.C), 293(5533): 1310-1314. doi:10. 1126/science.1061197. PMID:11509729.
6. Burgner, R.L., Light, J.T., Margolis, L., Okazaki, T., Tautz, A., and Ito, S. 1992. Distribution and origins of steelhead trout (Oncorhynchus mykiss) in offshore waters of the North Pacific Ocean. Int. North Pac. Fish. Comm. Bull. 51: 1-92.
7. Cooke, S.J., Crossin, G.T., Patterson, D.A., English, K.K., Hinch, S.G., Young, J.L., Alexander, R.F., Healey, M.C., Van Der Kraak, G., and Farrell, A.P. 2005. Coupling noninvasive physiological assessments with telemetry to understand inter-individual variation in behavior and survivorship of sockeye salmon: development and validation of a technique. J. Fish Biol. 67(5): 1342-1358. doi:10.1111/j.1095-8649.2005.00830.x.
8. Cooke, S.J., Hinch, S.G., Crossin, G.T., Patterson, D.A., English, K.K., Healey, M.C., Shrimpton, J.M., Van Der Kraak, G., and Farrell, A.P. 2006. Mechanistic basis of individual mortality in Pacific salmon during spawning migrations. Ecology, 87(6): 1575-1586. doi:10.1890/0012-9658(2006)87[1575:MBOIMI]2.0.CO;2. PMID:16869433.
9. Coutant, C.C. 1985. Striped bass, temperature, and dissolved oxygen: a speculative hypothesis for environmental risk. Trans. Am. Fish. Soc. 114(1): 31-61. doi:10.1577/1548-8659(1985) 114<31:SBTADO>2.0.CO;2.
10. Crespi, B.J., and Teo, R. 2002. Comparative phylogenetic analysis of the evolution of semelparity and life history in salmonid fishes. Evolution, 56(5): 1008-1020. PMID:12093015.
11. Davis, N.D., Atcheson, M., Marvin, D., and Fukuwaka, M. 2008. Interception of a PIT-tagged Columbia River Basin steelhead in the central North Pacific Ocean. Available from the School of Aquatic and Fishery Sciences, University of Washington, Seattle, Wash. NPAFC Doc. 1106.
12. Eiler, J.H. 1995. A remote satellite-linked tracking system for studying Pacific salmon with radio telemetry. Trans. Am. Fish. Soc. 124(2): 184-193. doi:10.1577/1548-8659(1995)124<0184:ARSLTS>2.3. CO;2.
13. Evans, A.F., Beaty, R.E., Fitzpatrick, M.S., and Collis, K. 2004. Identification and enumeration of steelhead kelts at a Snake River hydroelectric dam. Trans. Am. Fish. Soc. 133(5): 1089-1099. doi:10.1577/T03-121.1.
14. Excoffier, L., Laval, G., and Schneider, S. 2005. Arlequin (version 3.0): an integrated software package for population genetics data analysis [online]. Evol. Bioinform. 1: 47-50. PMID:19325852.
15. Fisher, N.I. 1993. Statistical analysis of circular data. Cambridge University Press, Cambridge, UK.
16. Fleming, I.A., and Reynolds, J.D. 2004. Salmon breeding systems. In Evolution illuminated: salmon and their relatives. Edited by A.P. Hendry and S.C. Stearns. Oxford University Press, Oxford, UK. pp.264-294.
17. Friedland, K.D., Walker, R.V., Davis, N.D., Myers, K.W., Boehlert, G.W., Urawa, S., and Ueno, Y. 2001. Open-ocean orientation and return migration routes of chum salmon based on temperature data from data storage tags. Mar. Ecol. Prog. Ser. 216: 235-252. doi:10.3354/meps216235.
18. Goudet, J. 2001. FSTAT, a program to estimate and test gene diversities and fixation indices (version 2.9.3). Available from http://www2.unil.ch/popgen/softwares/fstat.htm [updated 23 August 2005].
19. Guy, C.S., and Brown, M.L. (Editors). 2007. Analysis and interpretation of freshwater fisheries data. American Fisheries Society, Bethesda, Md.
20. Halttunen, E., Rikardsen, A.H., Davidsen, J.G., Thorstad, E.B., and Dempson, J.B. 2009. Survival, migration speed and swimming depth of Atlantic salmon kelts during sea entry and fjord migration. In Tagging and tracking of marine animals with electronic devices. Reviews: Methods and technologies in fish biology and fisheries, vol. 9. Edited by J.L. Nielsen, H. Arrizabalaga, N. Fragoso, A. Hobday, M. Lutcavage, and J. Sibert. Springer, Dordrecht, the Netherlands. pp. 35-50.
21. Hardy, O.J., and Vekemans, X. 2002. SPAGeDi: a versatile computer program to analyze spatial genetic structure at the individual or population levels. Mol. Ecol. Notes, 2(4): 618-620. doi:10. 1046/j.1471-8286.2002.00305.x.
22. arris, R.D. 2000. Water level accuracy and correcting for errors due to gravitational acceleration and liquid density. Tech. Note 001. In-Situ, Inc., Ft. Collins, Colo. pp. 2.
23. Hartt, A.C., and Dell, M.B. 1986. Early oceanic migrations and growth of juvenile Pacific salmon and steelhead trout. Int. North Pac. Fish. Comm. Bull. 46: 1-105.
24. Heath, D.D., Pollard, S., and Herbinger, C. 2001. Genetic structure and relationships among steelhead trout (Oncorhynchus mykiss) populations in British Columbia. Heredity, 86(5): 618-627. doi:10.1046/j.1365-2540.2001.00867.x. PMID:11554978.
25. Hedger, R.D., Hatin, D., Dodson, J.J., Martin, F., Fournier, D., Caron, F., and Whoriskey, F.G. 2009. Migration and swimming depth of Atlantic salmon kelts Salmo salar in coastal zone and marine habitats. Mar. Ecol. Prog. Ser. 392: 179-192. doi:10. 3354/meps08227.
26. Hendry, A.P., and Berg, O.K. 1999. Secondary sexual characters, energy use, senescence, and the cost of reproduction in sockeye salmon. Can. J. Zool. 77(11): 1663-1675. doi:10.1139/cjz-77-11-1663.
27. Hendry, M.A., Wenburg, J.K., Myers, K.W., and Hendry, A.P. 2002. Genetic and phenotypic variation through the migratory season provides evidence for multiple populations of wild steelhead in the Dean River, British Columbia. Trans. Am. Fish. Soc. 131(3): 418-434. doi:10.1577/1548-8659(2002)131<0418:GAPVTT>2.0. CO;2.
28. Hendry, A.P., Morbey, Y.E., Berg, O.K., and Wenburg, J.K. 2004. Adaptive variation in senescence: reproductive lifespan in a wild salmonid population. Proc. R. Soc. Lond. B Biol. Sci. 271(1536): 259-266. doi:10.1098/rspb.2003.2600.
29. Heupel, M.R., Semmens, J.M., and Hobday, A.J. 2006. Automated acoustic tracking of aquatic animals: scales, design and deployment of listening station arrays. Mar. Freshw. Res. 57(1): 1-13. doi:10.1071/MF05091.
30. Hill, R. 1994. Theory of geolocation by light levels. In Elephant seals: population ecology, behavior, and physiology. Edited by B.J. LeBouef and R.M. Laws. University of California Press, Berkeley, Calif. pp. 227-236.
31. Hubley, P.B., Amiro, P.G., Gibson, J.F., Lacroix, G.L., and Redden, A.M. 2008. Survival and behavior of migrating Atlantic salmon (Salmo salar L.) kelts in river, estuarine, and coastal habitats. ICES J. Mar. Sci. 65(9): 1626-1634. doi:10.1093/icesjms/fsn129.
32. Jepsen, N., Koed, A., Thorstad, E.B., and Baras, E. 2002. Surgical implantation of telemetry transmitters in fish: how much have we learned? Hydrobiologia, 483(1-3): 239-248. doi:10.1023/A:1021356302311.
33. -1 rule of thumb. In Aquatic Telemetry: Advances and Applications. Proceedings of the Fifth Conference on Fish Telemetry. Ustica, Italy, 9-13 June 2003. Edited by M.T. Spedicato, G. Lembo, and G. Marmulla. FAO/COISPA, Rome, Italy. pp. 255-259.
34. Jepsen, N., Mikkelsen, J.S., and Koed, A. 2008. Effects of tag and suture type on survival and growth of brown trout with surgically implanted telemetry tags in the wild. J. Fish Biol. 72(3): 594-602. doi:10.1111/j.1095-8649.2007.01724.x.
35. Johnson, R.E., and Jones, J.D. 2001. Southeast Alaska steelhead studies, 2000 Situk River weir and surveys of regional index streams. Available from the Alaska Department of Fish and Game, Sport Fish Division, Juneau, Alaska. Rep. Fish. Data Ser. No. 01-20.
36. Jones, D.E. 1973. Steelhead and sea-run cutthroat life history in southeast Alaska. Available from the Alaska Department of Fish and Game, Sport Fish Division, Juneau, Alaska. Rep. AFS-42-1.
37. Jonsson, B., and Jonsson, N. 1993. Partial migration: niche shift versus sexual maturation in fishes. Rev. Fish Biol. Fish. 3(4): 348-365. doi:10.1007/BF00043384.
38. Jonsson, N., Hansen, L.P., and Jonsson, B. 1991. Variation in age, size, and repeat spawning of adult Atlantic salmon in relation to river discharge. J. Anim. Ecol. 60(3): 937-947. doi:10.2307/5423.
39. Jonsson, N., Jonsson, B., and Hansen, L.P. 1997. Changes in proximate composition and estimates of energetic costs during upstream migration and spawning in Atlantic salmon Salmo salar. J. Anim. Ecol. 66(3): 425-436. doi:10.2307/5987.
40. Kalinowski, S.T., Wagner, A.P., and Taper, M.L. 2006. MLRELATE: a computer program for maximum likelihood estimation of relatedness and relationship. Mol. Ecol. Notes, 6(2): 576-579. doi:10.1111/j.1471-8286.2006.01256.x.
41. Keefer, M.L., Wertheimer, R.H., Evans, A.F., Boggs, C.T., and Peery, C.A. 2008. Iteroparity in Columbia River summer-run steelhead (Oncorhynchus mykiss): implications for conservation. Can. J. Fish. Aquat. Sci. 65(12): 2592-2605. doi:10.1139/F08-160.
42. Koo, T.S. 1962. Studies of Alaska red salmon. University of Washington Press, Seattle, Wash.
43. Kristianson, G., and Welch, D. 2007. Juvenile salmon: migration routes and survival results from the demonstration phase of the Pacific Ocean Shelf Tracking project (POST). North Pac. Anadr. Fish Comm. Tech. Rep. 7. pp. 17-18.
44. Lacroix, G.L., and Voegeli, F.A. 2000. Development of automated monitoring systems for ultrasonic transmitters. In Fish Telemetry:Proceedings of the Third Conference on Fish Telemetry in Europe, Lowestoft, UK, 20-25 June 1999. Edited by A. Moore and I. Russell. Centre for Environment, Fisheries, and AquacultureScience (CEFAS), Lowestoft, UK. pp. 37-50.
45. Lacroix, G.L., Knox, D., and McCurdy, P. 2004. Effects of implanted dummy acoustic transmitters on juvenile Atlantic salmon. Trans. Am. Fish. Soc. 133(1): 211-220. doi:10.1577/T03-071.
46. Leider, S.A., Hulett, P.L., Loch, J.J., and Chilcote, M.W. 1990. Electrophoretic comparison of the reproductive success of naturally spawning transplanted and wild steelhead trout through the returning adult stage. Aquaculture, 88(3-4): 239-252. doi:10. 1016/0044-8486(90)90151-C.
47. Lohr, S.C., and Bryant, M.D. 1999. Biological characteristics and population status of steelhead in Southeast Alaska. Available from the USDA Forest Service, Juneau, Alaska. Gen. Tech. Rep. PNW-GTR-407.
48. Lucas, M.C. 1989. Effects of implanted dummy transmitters on mortality, growth and tissue reaction in rainbow trout, Salmo gairdneri Richardson. J. Fish Biol. 35(4): 577-587. doi:10. 1111/j.1095-8649.1989.tb03007.x.
49. McKeown, B.A. 1984. Fish migration. Croom Helm Publishers, London, UK.
50. Meka, J.M., Knudsen, E.E., Douglas, D.C., and Benter, R.B. 2003. Variable migratory patterns of different adult rainbow trout life history types in a Southwest Alaska watershed. Trans. Am. Fish. Soc. 132(4): 717-732. doi:10.1577/T01-166.
51. Melnychuk, M.C., Welch, D.W., Walters, C.J., and Christensen, C. 2007. Riverine and early ocean migration and mortality patterns of juvenile steelhead trout (Oncorhynchus mykiss) from the Cheakamus River, British Columbia. Hydrobiologia, 582(1): 55-65. doi:10.1007/s10750-006-0541-1.
52. Metcalfe, J.D., and Arnold, G.P. 1997. Tracking fish with electronic tags. Nature (London), 387(6634): 665-666. doi:10.1038/42622.
53. Moore, A., Russell, I.C., and Potter, E.C.E. 1990. The effects of intraperitoneally implanted dummy acoustic transmitters on the behavior and physiology of juvenile Atlantic salmon, Salmo salar L. J. Fish Biol. 37(5): 713-721. doi:10.1111/j.1095-8649. 1990.tb02535.x.
54. Morris, D.B., Richard, K.R., and Wright, J.M. 1996. Microsatellites from rainbow trout (Oncorhynchus mykiss) and their use for genetic study of salmonids. Can. J. Fish. Aquat. Sci. 53(1): 120-126. doi:10.1139/cjfas-53-1-120.
55. Mulcahy, D.M. 2003. Surgical implantation of transmitters into fish. ILAR J. 44(4): 295-306. PMID:13130160.
56. Myers, K.W., Aydin, K.Y., Walker, R.V., Fowler, S., and Dahlberg, M.L. 1996. Known ocean ranges of stocks of Pacific salmon and steelhead as shown by tagging experiments. North Pac. Anadr. Fish. Comm. Doc. No. 192, Seattle, Wash.
57. Myers, K.W., Walker, R.V., Burgner, R.L., and Anma, G. 2001. Distribution, origins, biology and ecology of juvenile steelhead (Oncorhynchus mykiss) in the Gulf of Alaska in summer 1993-2000. North Pac. Anadr. Fish Comm. Tech. Rep. 2. pp. 30-31.
58. Narum, S.R., Contor, C., Talbot, A., and Powell, M.S. 2004. Genetic divergence of sympatric resident and anadromous forms of Oncorhynchus mykiss in the Walla Walla River, USA. J. Fish Biol. 65(2): 471-488. doi:10.1111/j.0022-1112.2004.00461.x.
59. Narum, S.R., Hatch, D., Talbot, A.J., Moran, P., and Powell, M.S. 2008. Iteroparity in complex mating systems of steelhead Oncorhynchus mykiss (Walbaum). J. Fish Biol. 72(1): 45-60. doi:10.1111/j.1095-8649.2007.01649.x.
60. Nielsen, J.L., Lisle, T.E., and Ozaki, V. 1994. Thermally stratified pools and their use by steelhead in northern California streams. Trans. Am. Fish. Soc. 123(4): doi:10.1577/1548-8659(1994)123<0613:TSPATU>2.3.CO;2.
61. Nielsen, J.L., Arrizabalaga, H., Fragoso, N., Hobday, A., Lutcavage, M., and Sibert, J. (Editors). 2009. Tagging and tracking of marine animals with electronic devices. Reviews: Methods and technologies in fish biology and fisheries, vol. 9. Springer, Dordrecht, the Netherlands.
62. O'Connell, M., Danzmann, R.G., Cornuet, J.-M., Wright, J.M., and Ferguson, M.M. 1997. Differentiation of rainbow trout (Oncorhynchus mykiss) populations in Lake Ontario and the evaluation of the stepwise mutation and infinite allele mutation models using microsatellite variability. Can. J. Fish. Aquat. Sci. 54(6): 1391-1399. doi:10.1139/cjfas-54-6-1391.
63. Ogura, M., and Ishida, Y. 1992. Swimming behavior of coho salmon, Oncorhynchus kisutch, in the open sea as determined by ultrasonic telemetry. Can. J. Fish. Aquat. Sci. 49(3): 453-457. doi:10.1139/f92-053.
64. Okkonen, S.R., and Howell, S.S. 2003. Measurements of temperature, salinity and circulation in Cook Inlet, Alaska. Available from University of Alaska Coastal Marine institute, University of Alaska Fairbanks and USDOI, Minerals Management Service, Alaska OCS Region. OCS Study MMS 2003-0036.
65. Olsen, J.B., Bentzen, P., and Seeb, J.E. 1998. Characterization of seven microsatellite loci derived from pink salmon. Mol. Ecol. 7(8): 1087-1089.
66. Park, S.D.E. 2001. Trypanotolerance in West African cattle and the population genetic effects of selection. Ph.D. dissertation, University of Dublin, Dublin, Ireland.
67. Perry, R.W., Adams, N.S., and Rondorf, D.W. 2001. Buoyancy com-pensation of juvenile Chinook salmon implanted with two different size dummy transmitters. Trans. Am. Fish. Soc. 130(1): 46-52. doi:10.1577/1548-8659(2001)130<0046:BCOJCS>2.0.CO;2.
68. Quinn, T.P. 2005. The behavior and ecology of Pacific salmon and trout. University of Washington Press, Seattle, Wash. Raymond, M., and Rousset, F. 1997. GENEPOP version 3.4. Available from http://genepop.curtin.edu.au/ [updated 14 April 2010].
69. Rice, W.R. 1989. Analyzing tables of statistical tests. Evolution, 43(1): 223-225. doi:10.2307/2409177.
70. Rideout, R.M., Rose, G.A., and Burton, M.P.M. 2005. Skipped spawning in female iteroparous fishes. Fish Fish. 6(1): 50-72.
71. Ruggerone, G.T., Quinn, T.P., McGregor, I.A., and Wilkinson, T.D. 1990. Horizontal and vertical movements of adult steelhead trout, Oncorhynchus mykiss, in the Dean and Fisher channels, British Columbia. Can. J. Fish. Aquat. Sci. 47(10): 1963-1969. doi:10.1139/f90-221.
72. Savvaitova, K.A., Kuzishchin, K.V., Maksimov, S.V., and Pavlov, S.D. 1996. Population structure of Mikizha, Salmo mykiss, in the Utkholok River (western Kamchatka). J. Ichthyol. 37(3): 216-225.
73. Scott, W.B., and Crossman, E.J. 1973. Freshwater fishes of Canada. Fish. Res. Board Can. Bull. 184.
74. Scribner, K.T., Gust, J.R., and Fields, R.L. 1996. Isolation and characterization of novel microsatellite loci: cross-species amplification and population genetic applications. Can. J. Fish. Aquat. Sci. 53(6): 685-693.
75. Sibert, J.R., and Nielsen, J.L. (Editors). 2001. Electronic tagging and tracking in marine fisheries. Kluwer Academic Publishers, Dordrecht, the Netherlands.
76. Smith, G.R., and Stearley, R.F. 1989. The classification and scientific names of rainbow and cutthroat trouts. Fisheries, 14(1): 4-10. doi:10.1577/1548-8446(1989)014<0004:TCASNO>2.0.CO;2.
77. Stabeno, P.J., Bond, N.A., Hermann, A.J., Kachel, N.B., Mordy, C.W., and Overland, J.E. 2004. Meteorology and oceanography of the Northern Gulf of Alaska. Cont. Shelf Res. 24(7-8): 859-897. doi:10.1016/j.csr.2004.02.007.
78. Summerfelt, R.C., and Mosier, D. 1984. Transintestinal expulsion of surgically implanted dummy transmitters by channel catfish. Trans. Am. Fish. Soc. 113(6): 760-766. doi:10.1577/1548-8659(1984)113<760:TEOSID>2.0.CO;2.
79. Tanaka, H., Naito, V., Davis, N.D., Urawa, S., Ueda, H., and Fukuwaka, M. 2005. First record of the at-sea swimming speed of a Pacific salmon during its oceanic migration. Mar. Ecol. Prog. Ser. 291: 307-312. doi:10.3354/meps291307.
80. Thrower, F., Guthrie, C., III, Nielsen, J., and Joyce, J. 2004. A comparison of genetic variation between an anadromous steelhead, Oncorhynchus mykiss, population and seven derived populations sequestered in freshwater for 70 years. Environ. Biol. Fishes, 69(1-4): 111-125. doi:10.1023/B:EBFI.0000022880. 52256.92.
81. Voegeli, F.A., Lacroix, G.L., and Anderson, J.M. 1998. Development of miniature pingers for tracking Atlantic salmon smolts at sea. Hydrobiologia, 371/372: doi:10.1023/A:1017014903313.
82. Walker, R.V. and Myers, K. W. 2009. Behavior of Yukon Chinook salmon in the Bering Sea as inferred from archival tag data. North Pac. Anadr. Fish Comm. Bull. 5. pp. 121-130.
83. Walker, R.V., Myers, K.W., Davis, N.D., Aydin, K.Y., Friedland, K.D., Carlson, H.R., Boehlert, G.W., Urawa, S., Ueno, Y., and Anma, G. 2000. Diurnal variation in thermal environment experienced by salmonids in the North Pacific as indicated by data storage tags. Fish. Oceanogr. 9(2): 171-186. doi:10.1046/j.1365-2419.2000.00131.x.
84. Walker, R.V., Sviridov, V.V., Urawa, S., and Azumaya, T. 2007. Spatial-temporal variation in vertical distribution of Pacific salmon in the ocean. North Pac. Anadr. Fish Comm. Bull. 4. pp. 193-201.
85. Waples, R.S., and Do, C. 2008. LDNE: a program for estimating effective population size from data on linkage disequilibrium. Mol. Ecol. Resour. 8(4): 753-756. doi:10.1111/j.1755-0998. 2007.02061.x.
86. Ward, B.R., and Slaney, P.A. 1988. Life history and smolt-to-adult survival of Keogh River steelhead trout (Salmo gairdneri) and the relationship to smolt size. Can. J. Fish. Aquat. Sci. 45: 1110-1122.
87. Ward, B.R., and Slaney, P.A. 1990. Returns of pen-reared steelhead from riverine, estuarine, and marine releases. Trans. Am. Fish. Soc. 119(3): 492-499. doi:10.1577/1548-8659(1990)119<0492: ROPSFR>2.3.CO;2.
88. Weir, B.S., and Cockerham, C.C. 1984. Estimating F-statistics for the analysis of population structure. Evolution, 38(6): 1358-1370. doi:10.2307/2408641.
89. Welch, D.W., and Eveson, J.P. 1999. An assessment of light-based geolocation estimates from archival tags. Can. J. Fish. Aquat. Sci. 56(7): 1317-1327. doi:10.1139/cjfas-56-7-1317.
90. Welch, D., Boehlert, G.W., and Ward, B.R. 2002. POST - the Pacific Ocean salmon tracking project. Oceanol. Acta, 25(5): 243-253. doi:10.1016/S0399-1784(02)01206-9.
91. Welch, D.W., Ward, B.R., and Batten, S.D. 2004. Early ocean survival and marine movements of hatchery and wild steelhead trout (Oncorhynchus mykiss) determined by an acoustic array: Queen Charlotte Strait, British Columbia. Deep Sea Res. Part II Top. Stud. Oceanogr. 51(6-9): 897-909. doi:10.1016/j.dsr2. 2004.05.010.
92. Welch, D.W., Batten, S.D., and Ward, B.R. 2007. Growth, survival, and tag retention of steelhead trout (O. mykiss) surgically implanted with dummy acoustic tags. Hydrobiologia, 582(1): 289-299. doi:10.1007/s10750-006-0553-x.
93. Wertheimer, R.H., and Evans, A.F. 2005. Downstream passage of steelhead kelts through hydroelectric dams on the lower Snake and Columbia Rivers. Trans. Am. Fish. Soc. 134(4): 853-865. doi:10.1577/T04-219.1.
94. Withler, I.L. 1966. Variability in life history characteristics of steelhead trout (Salmo gairdneri) along the Pacific coast of North America. J. Fish. Res. Board Can. 23: 365-392.