Date of smolt migration depends on body-size but not age in wild sea- run brown trout

Journal of Fish Biology

Volumn 49, Issue 1, 1996, Pages 157-164

  Bohlin, T ^a   Dellefors, C ^a   Faremo, U ^a  

^a UNIVERSITY OF GOTHENBURG   (Sweden)

Author keywords

migration; Salmo trutta; smolt; timing

Indexed keywords

AGE; BODY SIZE; BODY-SIZE; BROWN TROUT; MIGRATION; MIGRATIONS; SMOLT; SMOLTS;

AUTUMN; BODY HEIGHT; BODY SIZE; BROWN TROUT; SEA; SMOLT; SUMMER; TROUT;

SALMO TRUTTA; SALMONIDAE;

EID: 0030176984     PISSN: 00221112     EISSN: None     Source Type: Journal    
DOI: 10.1006/jfbi.1996.0143     Document Type: Article

References (26)

1. Bilton, H. T., Alderdice, D. F. & Schnute, J. T. (1982). Influence of time and size at release of juvenile coho salmon (Oncorhynchus kisutch) on returns at maturity. Canadian Journal of Fisheries and Aquatic Sciences 39, 426-447.
2. Bohlin, T., Dellefors, C. & Faremo, U. (1993a). Timing of sea-run brown trout (Salmo trutta) smolt migration: effects of climatic variation. Canadian Journal of Fisheries and Aquatic Sciences 50, 1132-1136.
3. Bohlin, T., Dellefors, C. & Faremo, U. (1993b). Optimal time and size for smolt migration in wild sea trout (Salmo trutta). Canadian Journal of Fisheries and Aquatic Sciences 50, 224-232.
4. Bolger, T. & Connolly, P. L. (1989). The selection of suitable indices for the measurement and analysis of fish condition. Journal of Fish Biology 34, 171-182.
5. Conte, F. P. & Wagner, H. H. (1965). Development of osmotic and ionic regulation in the juvenile steelhead trout Salmo gairdneri. Comparative Biochemistry 18, 1-15.
6. Ewing, R. D., Hart, C. E., Furtish, C. A. & Concannon, G. (1984). Effects of size and time of release on seaward migration of spring chinook salmon, Oncorhynchus tshawytscha. Fishery Bulletin 82, 157-164.
7. Farmer, G. J. (1994). Some factors which influence the survival of hatchery Atlantic salmon (Salmo solar) smolts utilized for enhancement purposes. Aquaculture 121, 223-244.
8. Greenstreet, S. P. R. (1992). Migration of hatchery reared juvenile Atlantic salmon, Salmo solar L., smolts down a release ladder. 1. Environmental effects on migratory activity. Journal of Fish Biology 40, 655-666.
9. Hoar, W. S. (1976). Smolt transformation: evolution, behavior, and physiology. Journal of the Fisheries Research Board of Canada 33, 1234-1252.
10. Holtby, L. B., McMahon, T. E. & Scrivener, J. C. (1989). Stream temperatures and inter-annual variability in the emigration timing of coho salmon (Oncorhynchus kisutch) smolt and fry and chum salmon (O. keta) fry from Carnation Creek, British Columbia. Canadian Journal of Fisheries and Aquatic Sciences 46, 1396-1405.
11. Irvine, J. R. & Ward, B. R. (1989). Patterns of timing and size of wild coho salmon (Oncorhynchus kisutch) smolts migrating from Keogh River Watershed on northern Vancouver Island. Canadian Journal of Fisheries and Aquatic Sciences 46, 1086-1094.
12. Jonsson, B. & Ruud-Hansen, J. (1985). Water temperature as the primary influence on timing of seaward migrations of Atlantic salmon (Salmo solar) smolts. Canadian Journal of Fisheries and Aquatic Sciences 42, 593-595.
13. Jonsson, N., Jonsson, B. & Hansen, L. P. (1990). Partial segregation in the timing of migration of Atlantic salmon of different ages. Animal Behaviour 40, 313-321.
14. Lundquist, H., Clarke, W. C. & Johansson, H. (1988). The influence of precocious sexual maturation on survival to adulthood of river stocked Baltic salmon, Salmo solar, smolts. Holarctic Ecology 11, 60-69.
15. Lundquist, H., McKinnell, S., Fängstam, H. & Berglund, I. (1994). The effect of time, size and sex on recapture rates and yield after river releases of Salmo solar smolts. Aquaculture 121, 245-276.
16. Neilson, J. D. & Geen, G. H. (1986). First-year growth rate of Sixes River chinook salmon as inferred from otoliths: effects on mortality and age at maturity. Transactions of the American Fisheries Society 115, 28-33.
17. Nicieza, A. G. & Brana, F. (1993). Relationships among smolt size, marine growth, and sea age at maturity of Atlantic salmon (Salmo solar) in northern Spain. Canadian Journal of Fisheries and Aquatic Sciences 50, 1632-1640.
18. Økland, F., Jonsson, B., Jensen, A. J. & Hansen, L. P. (1993). Is there a threshold size regulating seaward migration of brown trout and Atlantic salmon? Journal of Fish Biology 42, 541-550.
19. Peterman, R. M. (1982). Model of salmon age structure and its use in pre-season forecasting and studies of marine survival. Canadian Journal of Fisheries and Aquatic Sciences 39, 1444-1452.
20. SAS (1988). SAS/STAT User's Guide, Release 6.03 edition. Cary, NC: SAS.
21. Solomon, D. J. (1978). Some observations on salmon smolt migration in a chalk stream. Journal of Fish Biology 12, 571-574.
22. Solomon, D. J. (1982). Smolt migration in Atlantic salmon (Salmo salar L.) and sea trout (Salmo trutta). In Salmon and Trout Migratory Behavior Symposium, 1981 (Brannon, E. L. & Salo, E. O., eds), pp. 196-203. Seattle, WA: School of Fisheries, University of Washington.
23. Thorpe, J. E. (1977). Bimodal distribution of length of juvenile Atlantic salmon (Salmo solar L.) under artificial rearing conditions. Journal of Fish Biology 11, 175-184.
24. Ward, B. R. & Slaney, P. A. (1988). Life history and smolt-to-adult survival of Keogh River steelhead trout (Salmo gairdneri) and the relationship to smolt size. Canadian Journal of Fisheries and Aquatic Sciences 45, 1110-1122.
25. Ward, B. R., Slaney, P. A., Facchin, A. R. & Land, R. W. (1989). Size biased survival in steelhead trout (Oncorhynchus mykiss): back-calculated lengths from adults' scales compared to migrating smolt at Keogh River, British Columbia. Canadian Journal of Fisheries and Aquatic Sciences 46, 1853-1858.
26. Youngson, A. G., Buck, R. J. G., Simpson, T. H. & Hay, D. W. (1983). The autumn and spring emigrations of juvenile salmon Salmo solar L., from the Girnock Burn, Aberdeen shire, Scotland: environmental release of migration. Journal of Fish Biology 23, 625-639.