Evidence for sea lice-induced marine mortality of atlantic salmon (Salmo salar) in western ireland from experimental releases of ranched smolts treated with emamectin benzoate

Canadian Journal of Fisheries and Aquatic Sciences

Volumn 69, Issue 2, 2012, Pages 343-353

  Gargan, P G ^a   Forde, G ^a   Hazon, N ^b   Russell, D J F ^b   Todd, C D ^b  

^a INLAND FISHERIES IRELAND   (Ireland)

^b UNIVERSITY OF ST ANDREWS   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ABUNDANCE; BIOLOGICAL INVASION; CONSERVATION STATUS; HATCHERY; JUVENILE; LOUSE; MORTALITY; RIVER SYSTEM; SALMONID FISHERY; SMOLT; SURVIVORSHIP; TAGGING; VULNERABILITY; WILD POPULATION;

IRELAND;

LEPEOPHTHEIRUS SALMONIS; PHTHIRAPTERA; SALMO SALAR; SALMO TRUTTA; SALMONIDAE;

EID: 84858644180     PISSN: 0706652X     EISSN: 12057533     Source Type: Journal    
DOI: 10.1139/F2011-155     Document Type: Article

References (54)

1. Amundrud, T.L., and Murray, A.G. 2009. Modelling sea lice dispersion under varying environmental forcing in a Scottish sea loch. J. Fish Dis. 32(1): 27-44. doi:10.1111/j.1365-2761.2008.00980.x.
2. Anonymous. 2008. A strategy for improved pest control on Irish salmon farms, Department of Agriculture, Fisheries and Food, Dublin, Ireland. pp. 1-51.
3. Beamish, R.J., Jones, S., Neville, C.-E., Sweeting, R., Karreman, G., Saksida, S., and Gordon, E. 2006. Exceptional marine survival of pink salmon that entered the marine environment in 2003 suggests that farmed Atlantic salmon and Pacific salmon can coexist successfully in a marine ecosystem on the Pacific Coast of Canada. ICES J. Mar. Sci. 63(7): 1326-1337. doi:10.1016/j.icesjms.2006.04.011.
4. Bjørn, P.A., and Finstad, B. 1997. The physiological effects of salmon lice infection on sea trout post smolts. Nord. J. Freshw. Res. 73: 60-72.
5. Bjørn, P.A., Finstad, B., Nilsen, R., Asplin, L., Uglem, I., Skaala, Ø., Boxaspen, K.K., and Øverland, T. 2008. Nasjonal overvåkning av lakselusinfeksjon på ville bestander av laks, sjøørret og sjørøye I forbindelse med nasjonale laksevassdrag og laksefjorder (Norwegian national surveillance of salmon lice epidemics on wild Atlantic salmon, sea trout and Arctic char in connection with Norwegian national salmon rivers and fjords). NINA Rapport Number 377. pp. 1-33. Trondheim, Norway. [In Norwegian.]
6. Blackwell, B.G., Brown, M.L., and Willis, D.W. 2000. Relative weight (Wr) status and current use in fisheries assessment and management. Rev. Fish. Sci. 8(1): 1-44. doi:10.1080/10641260091129161.
7. Brooks, K., and Jones, S. 2008. Perspectives on pink salmon and sea lice: scientific evidence fails to support the extinction hypothesis. Rev. Fish. Sci. 16(4): 403-412. doi:10.1080/10641260801937131.
8. Butler, J.R.A. 2002. Wild salmonids and sea louse infestations on the west coast of Scotland: sources of infection and implications for the management of marine salmon farms. Pest Manag. Sci. 58(6): 595-608, discussion 622-629. doi:10.1002/ps.490.
9. Cairns, D.K. (Editor). 2001. An evaluation of possible causes of the decline in pre-fishery abundance of North American Atlantic salmon. Canadian Technical Report of Fisheries and Aquatic Sciences, No. 2358.
10. Connors, B.M., Krkošek, M., Ford, J., and Dill, L.M. 2010. Coho salmon productivity in relation to salmon lice from infected prey and salmon farms. J. Appl. Ecol. 47(6): 1372-1377. doi:10.1111/j.1365-2664.2010.01889.x.
11. Costello, M.J. 2009. How sea lice from salmon farms may cause wild salmonid declines in Europe and North America and be a threat to fishes elsewhere. Proc. R. Soc. Lond. B Biol. Sci. 276(1672): 3385-3394. doi:10.1098/rspb.2009.0771.
12. Dawson, L.H.J., Pike, A.W., Houlihan, D.F., and McVicar, A.H. 1998. Effects of salmon lice Lepeophtheirus salmonis on sea trout Salmo trutta at different times after seawater transfer. Dis. Aquat. Organ. 33(3): 179-186. doi:10.3354/dao033179.
13. Finstad, B., and Jonsson, N. 2001. Factors influencing the yield of smolt releases in Norway. Nord. J. Freshw. Res. 75: 37-55.
14. Finstad, B., Bjørn, P.A., Nilsen, S.T., and Hvidsten, N.A. 1994. Registreringer av lakselus på laks, sjøørret og sjørøye (Registrations of salmon lice on Atlantic salmon, sea trout and Arctic charr). NINA Oppdragsmelding 287, Trondheim, Norway. [In Norwegian.]
15. Finstad, B., Bjørn, P.A., Grimnes, A., and Hvidsten, N.A. 2000. Laboratory and field investigations of salmon lice (Lepeophtheirus salmonis Krøyer) infestations on Atlantic salmon (Salmo salar L.) post-smolts. Aquacult. Res. 31(11): 795-803. doi:10.1046/j.1365-2109.2000.00511.x.
16. Frazer, L.N. 2008. Sea-cage aquaculture, sea lice and declines of wild fish. Conserv. Biol. 23: 559-607.
17. Gargan, P.G., Tully, O., and Poole, W.R. 2003. The relationship between sea lice infestation, sea lice production and sea trout survival in Ireland, 1992-2001. In Salmon at the Edge. Edited by D. Mills. Blackwell Scientific Publications, Oxford, UK. pp. 119-135.
18. Gargan, P.G., Poole, W.R., and Forde, G. 2006. A review of the status of Irish sea trout stocks. In Sea trout: biology, conservation and management. Edited by G.S. Harris and N.J. Milner. Fishing News Books, Blackwell Scientific Publications, Oxford, UK. pp. 25-44.
19. Grimnes, A., and Jakobsen, P.J. 1996. The physiological effects of salmon lice infection on post-smolt of Atlantic salmon. J. Fish Biol. 48(6): 1179-1194. doi:10.1111/j.1095-8649.1996.tb01813.x.
20. Heuch, P.A., and Mo, T.A. 2001. A model of salmon louse production in Norway: effects of increasing salmon production and public management measures. Dis. Aquat. Organ. 45(2): 145-152. doi:10.3354/dao045145.
21. Heuch, P.A., Bjørn, P.A., Finstad, B., Holst, J.C., Asplin, L., and Nilsen, F. 2005. A review of the Norwegian "national action plan against salmon lice on salmonids": the effect on wild salmonids. Aquaculture, 246(1-4): 79-92. doi:10.1016/j.aquaculture.2004.12.027.
22. Holst, J.C., Jakobsen, P., Nilsen, F., Holm, M., Asplin, L., and Aure, J. 2003. Mortality of seaward-migrating post-smolts of Atlantic salmon due to salmon lice infection in Norwegian salmon stocks. In Salmon at the Edge. Edited by D. Mills. Blackwell Scientific Publications, Oxford, UK. pp. 136-137.
23. Hvidsten, N.A., Finstad, B., Kroglund, F., Johnsen, B.O., Strand, R., Arnekleiv, J.V., and Bjørn, P.A. 2007. Does increased abundance of sea lice influence survival of wild Atlantic salmon post-smolt? J. Fish Biol. 71(6): 1639-1648. doi:10.1111/j.1095-8649.2007.01622.x.
24. Jackson, D., Deady, S., Leahy, Y., and Hassett, D. 1997. Variations in parasitic caligid infestations on farmed salmonids and implications for their management. ICES J. Mar. Sci. 54(6): 1104-1112. doi:10.1016/S1054-3139(97)80015-X.
25. Jackson, D., Cotter, D., Ó Maoiléidigh, N., O'Donohoe, D., White, P., Kane, J., et al. 2011. An evaluation of the impact of early infestation with the salmon louse Lepeophtheirus salmonis on the subsequent survival of outwardly migrating Atlantic salmon, Salmo salar L., smolts. Aquaculture (Amsterdam, Netherlands), 320(3-4): 159-163. doi:10.1016/j.aquaculture.2011.03.029.
26. Johansen, L.H., Jensen, I., Mikkelsen, H., Bjorn, P.A., Jansen, P.A., and Bergh, O. 2011. Disease interaction and pathogens exchange between wild and farmed fish populations with special reference to Norway. Aquaculture, 315(3-4): 167-186. doi:10.1016/j.aquaculture.2011.02.014.
27. Johnson, S.C., and Albright, L.J. 1991. The developmental stages of Lepeophtheirus salmonis (Krøyer, 1837) (Copepoda: Caligidae). Can. J. Zool. 69(4): 929-950. doi:10.1139/z91-138.
28. Kallio-Nyberg, I., Jultila, E., Saloniemi, I., and Jokikokko, E. 2004. Association between environmental factors, smolt size and the survival of wild and reared Atlantic salmon from the Simojoki River in the Baltic Sea. J. Fish Biol. 65(1): 122-134. doi:10.1111/j.0022-1112.2004.00435.x.
29. Krkošek, M., Lewis, M.A., and Volpe, J.P. 2005. Transmission dynamics of parasitic sea lice from farm to wild salmon. Proc. R. Soc. Lond. B. Biol. Sci. 272(1564): 689-696. doi:10.1098/rspb.2004.3027.
30. Krkošek, M., Ford, J.S., Morton, A., Lele, S., Myers, R.R., and Lewis, M.A. 2007. Declining wild salmon populations in relation to parasites from farmed salmon. Science, 318(5857): 1772-1775. doi:10.1126/science.1148744.
31. Lees, F., Baillie, M., Gettinby, G., and Revie, C.W. 2008. The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L.) in Scotland, 2002-2006. PLoS ONE, 3(2): e1549 doi:10.1371/journal.pone.0001549.
32. Ó Maoiléidigh, N., Browne, J., McDermott, T., Cullen, A., Bond, N., McEvoy, B., and O'Farrell, M. 1994. Exploitation and survival of River Shannon reared salmon. Fishery Leaflet 164, Roinn na Mara, Dublin. [ISSN 0332-1789.]
33. Marty, G.D., Saksida, S.M., and Quinn, T.J., 2nd. 2010. Relationship of farm salmon, sea lice, and wild salmon populations. Proc. Natl. Acad. Sci. U.S.A. 107(52): 22 599-22 604. doi:10.1073/pnas.1009573108.
34. McKibben, M.A., and Hay, D.W. 2004. Distributions of planktonic sea lice larvae Lepeophtheirus salmonis in the inter-tidal zone in Loch Torridon, Western Scotland in relation to salmon farm production cycles. Aquacult. Res. 35(8): 742-750. doi:10.1111/j.1365-2109.2004.01096.x.
35. McVicar, A.H. 2004. Management actions in relation to the controversy about salmon lice infestations in fish farms as a hazard to wild salmonid populations. Aquacult. Res. 35(8): 751-758. doi:10.1111/j.1365-2109.2004.01097.x.
36. Middlemas, S.J., Raffell, J.A., Hay, D.W., Hatton-Ellis, M., and Armstrong, J.D. 2010. Temporal and spatial patterns of sea lice levels on sea trout in western Scotland in relation to fish farm production cycles. Biol. Lett. 6(4): 548-551. doi:10.1098/rsbl.2009.0872.
37. Morton, A., Routledge, R., Peet, C., and Ladwig, A. 2004. Sea lice (Lepeophtheirus salmonis) infection rates on juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon in the nearshore marine environment of British Columbia, Canada. Can. J. Fish. Aquat. Sci. 61(2): 147-157. doi:10.1139/f04-016.
38. Morton, A., Routledge, R., and Williams, R. 2005. Temporal patterns of sea lice infestation on wild Pacific salmon in relation to the fallowing of Atlantic salmon farms. N. Am. J. Fish. Manage. 25(3): 811-821. doi:10.1577/M04-149.1.
39. Nakagawa, S. 2004. A farewell to Bonferroni: the problems of low statistical power and publication bias. Behav. Ecol. 15(6): 1044-1045. doi:10.1093/beheco/arh107.
40. Nolan, D.T., Reilly, P., and Wendelaar Bonga, S.E. 1999. Infection with low numbers of the sea louse Lepeophtheirus salmonis induces stress-related effects in postsmolt Atlantic salmon (Salmo salar). Can. J. Fish. Aquat. Sci. 56(6): 947-959. doi:10.1139/f99-021.
41. O'Donohoe, P., Kennedy, S., Kane, F., Naughton, O., Tierney, D., Copley, L., and Jackson, D. 2004. National survey of sea lice (Lepeophtheirus salmonis Krøyer and Caligus elongatus Nordmann) on fish farms in Ireland -2003. Marine Institute, Fisheries Leaflet 184.
42. O'Donohoe, P., Kennedy, S., Kane, F., Naughton, O., Tierney, D., and Jackson, D. 2005. National survey of sea lice (Lepeophtheirus salmonis Krøyer and Caligus elongatus Nordmann) on fish farms in Ireland, 2004. Irish Fisheries Bulletin, 22.
43. O'Donohoe, P., Kane, F., Kennedy, S., Naughton, O., Nixon, P., Power, A., and Jackson, D. 2006. National survey of sea lice (Lepeophtheirus salmonis Krøyer and Caligus elongatus Nordmann) on fish farms in Ireland, 2005. Irish Fisheries Bulletin, 24.
44. Penston, M.J., McKibben, M.A., Hay, D.W., and Gillibrand, P.A. 2004. Observations on open-water densities of sea lice larvae in Loch Shieldaig, Western Scotland. Aquacult. Res. 35(8): 793-805. doi:10.1111/j.1365-2109.2004.01102.x.
45. R Development Core Team. 2010. R: a language and environment for statistical computing [online]. R Foundation for Statistical Computing, Vienna, Austria. Available from http://www.Rproject.org/.
46. Revie, C., Dill, L., Finstad, B., and Todd, C.D. 2009. Sea Lice Working Group Report. NINA Special Report 39, pp. 1-117. [ISSN 0804-421X.]
47. Skilbrei, O.T., and Wennevik, V. 2006. Survival and growth of searanched Atlantic salmon Salmo salar L., treated against sea lice before release. ICES J. Mar. Sci. 63(7): 1317-1325. doi:10.1016/j.icesjms.2006.04.012.
48. Sokal, R.R., and Rohlf, F.J. 1995. Biometry: the principles and practice of statistics in biological research. 3rd ed. W.H. Freeman and Co., New York.
49. Solomon, D.J., and Potter, E.C.E. 1992. The measurement and evaluation of the exploitation of Atlantic salmon. A Workshop held by the Atlantic Salmon Trust and the Royal Irish Academy, Dublin, April 1991. Atlantic Salmon Trust, Pitlochry, Scotland.
50. Stone, J., Roy, W.J., Sutherland, I.H., Ferguson, H.W., Sommerville, C., and Endris, R. 2002. Safety and efficacy of emamectin benzoate administered in-feed to Atlantic salmon Salmo salar L., smolts in freshwater, as a preventative treatment against infestations of sea lice, Lepeophtheirus salmonis (Krøyer). Aquaculture, 210(1-4): 21-34. doi:10.1016/S0044-8486(01)00822-5.
51. Tully, O., and Whelan, K.F. 1993. Production of nauplii of Lepeophtheirus salmonis (Krøyer) (Copepoda: Caligidae) from farmed and wild salmon and its relation to the infestation of wild sea trout (Salmo trutta L.) off the west coast of Ireland in 1991. Fish. Res. 17(1-2): 187-200. doi:10.1016/0165-7836(93)90018-3.
52. Tully, O., Poole, W.R., Whelan, K.F., and Merigoux, S. 1993. Parameters and possible causes of Lepeophtheirus salmonis (Krøyer) infesting sea trout (Salmo trutta L.) off the west coast of Ireland. In Pathogens of wild and farmed fish: sea lice. Edited by G.A. Boxhall and D. Defaye. Ellis Horwood, Chichester, UK. pp. 202-213.
53. Tully, O., Gargan, P.G., Poole, W.R., and Whelan, K.F. 1999. Spatial and temporal variation in the infestation of sea trout (Salmo trutta L.) by the caligid copepod Lepeophtheirus salmonis (Krøyer) in relation to sources of infestation in Ireland. Parasitology, 119(1): 41-51. doi:10.1017/S003118209900445X.
54. Whelan, K.F., and Poole, W.R. 1996. The sea trout collapse, 1989-92. In The conservation of aquatic systems. Edited by J.D. Reynolds. Proceedings of Seminar held on 18-19 February 1993. Royal Irish Academy, Dublin, Ireland. pp. 101-110.