Territorial and agonistic interactions between farmed and wild cod (Gadus morhua)

Aquaculture Research

Volumn 42, Issue 10, 2011, Pages 1539-1548

  Sverdrup, Gisle K ^a   Meager, Justin J ^a   Fernö, Anders ^a,b   Skjæraasen, Jon E ^a   Rodewald, Petra ^a,c   Salvanes, Anne G V ^a   Järvi, Torbjörn ^d,e  

^a UNIVERSITY OF BERGEN   (Norway)

^b INSTITUTE OF MARINE RESEARCH   (Norway)

^c UNIVERSITY OF HELSINKI   (Finland)

^d INSTITUTE OF MARINE RESEARCH   (Sweden)

^e STOCKHOLM UNIVERSITY   (Sweden)

Author keywords

Aquaculture; Competition; Escaped cod; Prior residence

Indexed keywords

AGGRESSION; CONTEST COMPETITION; FISH CULTURE; FOOD AVAILABILITY; GADOID; JUVENILE; MULTIVARIATE ANALYSIS; RESEARCH WORK; SHELTER; TERRITORIALITY; WILD POPULATION;

GADUS MORHUA;

EID: 80052288469     PISSN: 1355557X     EISSN: 13652109     Source Type: Journal    
DOI: 10.1111/j.1365-2109.2010.02746.x     Document Type: Article

References (46)

1. Anderson J.L., Laurel B.J. & Brown J.A. (2007) Diel changes in behaviour and habitat use by age-0 Atlantic cod (Gadus morhua L.) in the laboratory and field. Journal of Experimental Marine Biology and Ecology 351, 267-275.
2. Bekkevold D., Hansen M.M. & Nielsen E.E. (2006) Genetic impact of gadoid culture on wild fish populations: predictions, lessons from salmonids, and possibilities for minimizing adverse effects. ICES Journal of Marine Science 63, 198-208.
3. Berejikian B.A., Tezak E.P., Riley S.C. & LaRae A.L. (2001) Competitive ability and social behaviour of juvenile steelhead reared in enriched and conventional hatchery tanks and a stream environment. Journal of Fish Biology 59, 1600-1613.
4. Berg E. (2007) 2.2 Norsk kysttorsk. In: Kyst og Havbruk (ed. by E. Dahl, P.K. Hansen, T. Haug & Ø Karlsen), pp. 81-83. Institute for Marine Research, Bergen, Norway.
5. Biro P.A., Ridgway M.S. & Noakes D.L.G. (1997) The central-place territorial model does not apply to space-use by juvenile brook charr Salvelinus fontinalis in lakes. Journal of Animal Ecology 66, 837-845.
6. Björnsson B. (1993) Swimming speed and swimming metabolism of Atlantic cod (Gadus morhua) in relation to available food - a laboratory study. Canadian Journal of Fisheries and Aquatic Sciences 50, 2542-2551.
7. Brawn V.M. (1961) Aggressive behaviour in the cod (Gadus callarias L.). Behaviour 18, 107-147.
8. Deverill J.I., Adams C.E. & Bean C.W. (1999) Prior residence, aggression and territory acquisition in hatchery-reared and wild brown trout. Journal of Fish Biology 55, 868-875.
9. Einum S. & Fleming I.A. (1997) Genetic divergence and interactions in the wild among native, farmed and hybrid Atlantic salmon. Journal of Fish Biology 50, 634-651.
10. Einum S. & Fleming I.A. (2001) Implications of stocking: ecological interactions between wild and released salmonids. Nordic Journal of Freshwater Research 75, 56-70.
11. Fleming I.A. & Einum S. (1997) Experimental tests of genetic divergence of farmed from wild Atlantic salmon due to domestication. ICES Journal of Marine Science 54, 1051-1063.
12. Gotceitas V. & Brown J.A. (1993) Substrate selection by juvenile Atlantic cod (Gadus morhua) effects of predation risk. Oecologia (Berlin) 93, 31-37.
13. Gotceitas V., Fraser S. & Brown J.A. (1995) Habitat use by juvenile Atlantic cod (Gadus morhua) in the presence of an actively foraging and non-foraging predator. Marine Biology (Berlin) 123, 421-430.
14. Grant J.W.A. (1993) Whether or not to defend - the influence of resource distribution. Marine Behaviour and Physiology 23, 137-153.
15. Grant S.M., Brown J.A. & Boyce D.L. (1998) Enlarged fatty livers of small juvenile cod: a comparison of laboratory-cultured and wild juveniles. Journal of Fish Biology 52, 1105-1114.
16. Hart P.J.B. & Salvanes A.G.V. (2000) Individual variation in competitive performance of juvenile cod and its consequences for growth. Journal of the Marine Biological Association of the United Kingdom 80, 569-570.
17. Hawkins A.D., Urquart G.G. & Smith G.W. (1980) Ultrasonic tracking of juvenile cod by means of a large spaced hydrophone array. In: A Handbook of Biotelemetry and Radio Tracking (ed. by C.J. Amlaner Jr & D.W. MacDonald), pp. 461-470. Pergamon Press, Oxford, UK.
18. Hedenskog M., Petersson E. & Järvi T. (2002) Agonistic behavior and growth in newly emerged brown trout (Salmo trutta L) of sea-ranched and wild origin. Aggressive Behavior 28, 145-153.
19. Höglund E., Bakke M.J., Øverli Ø., Winberg S. & Nilsson G.E. (2005) Suppression of aggressive behaviour in juvenile Atlantic cod (Gadus morhua) by l-tryptophan supplementation. Aquaculture 249, 525-531.
20. Huntingford F. & Adams C. (2005) Behavioural syndromes in farmed fish: implications for production and welfare. Behaviour 142, 1207-1221.
21. Huntingford F.A. (1987) Animal Conflict. Chapman, London, UK.
22. Huntingford F.A. (2004) Implications of domestication and rearing conditions for the behaviour of cultivated fishes. Journal of Fish Biology 65, 122-142.
23. Hutchings J.A. & Baum J.K. (2005) Measuring marine fish biodiversity: temporal changes in abundance, life history and demography. Philosophical Transactions of the Royal Society B-Biological Sciences 360, 315-338.
24. Jonsson B. & Jonsson N. (2006) Cultured Atlantic salmon in nature: a review of their ecology and interaction with wild fish. ICES Journal of Marine Science 63, 1162-1181.
25. Laurel B.J., Gregory R.S., Brown J.A., Hancock J.K. & Schneider D.C. (2004) Behavioural consequences of density-dependent habitat use in juvenile cod Gadus morhua and G. ogac: the role of movement and aggregation. Marine Ecology-Progress Series 272, 257-270.
26. Maher C.R. & Lott D.F. (1995) Definitions of territoriality used in the study of variation in vertebrate spacing systems. Animal Behaviour 49, 1581-1597.
27. Martinez M., Bédard M., Dutil J.D. & Guderley H. (2004) Does condition of Atlantic cod (Gadus morhua) have a greater impact upon swimming performance at U-Crit or sprint Speeds? Journal of Experimental Biology 207, 2979-2990.
28. Metcalfe N.B., Valdimarsson S.K. & Morgan I.J. (2003) The relative roles of domestication, rearing environment, prior residence and body size in deciding territorial contests between hatchery and wild juvenile salmon. Journal of Applied Ecology 40, 535-544.
29. Moe H., Dempster T., Sunde L.M., Winther U. & Fredheim A. (2007) Technological solutions and operational measures to prevent escapes of Atlantic cod (Gadus morhua) from sea cages. Aquaculture Research 38, 91-99.
30. Nakano S. (1995) Individual-differences in resource use, growth and emigration under the influence of a dominance hierarchy in fluvial red-spotted masu salmon in a natural habitat. Journal of Animal Ecology 64, 75-84.
31. Nicieza A.G. & Metcalfe N.B. (1999) Costs of rapid growth: the risk of aggression is higher for fast-growing Salmon. Functional Ecology 13, 793-800.
32. Nordeide J.T. & Fosså J.H. (1992) Diet overlap between 2 subsequent year-classes of juvenile coastal cod (Gadus morhua L) and wild and reared cod. Sarsia 77, 111-117.
33. Norwegian Directorate of Fisheries (2010) Statistics for aquaculture. Available at (accessed 19 November 2010).
34. Olla B.L., Davis M.W. & Ryer C.H. (1994) Behavioural deficits in hatchery-reared fish: potential effects on survival following release. Aquaculture and Fisheries Management 25, 19-34.
35. Olla B.L., Davis M.W. & Ryer C.H. (1998) Understanding how the hatchery environment represses or promotes the development of behavioural survival skills. Bulletin of Marine Science 62, 531-550.
36. Pearsons T.N., Fritts A.L. & Scott J.L. (2007) The effects of hatchery domestication on competitive dominance of juvenile spring Chinook salmon (Oncorhynchus tshawytscha). Canadian Journal of Fisheries and Aquatic Sciences 64, 803-812.
37. Petersson E. & Järvi T. (2000) Both contest and scramble competition affect the growth performance of brown trout, Salmo trutta, parr of wild and of sea-ranched origins. Environmental Biology of Fishes 59, 211-218.
38. Rosenlund G. & Halldorsson O. (2007) Cod juvenile production: research and commercial developments. Aquaculture 268, 188-194.
39. Ryer C.H. & Olla B.L. (1991) Agonistic behaviour in a schooling fish - form, function and ontogeny. Environmental Biology of Fishes 31, 355-363.
40. Salvanes A.G.V. & Braithwaite V.A. (2005) Exposure to variable spatial information in the early rearing environment generates asymmetries in social interactions in cod (Gadus morhua). Behavioral Ecology and Sociobiology 59, 250-257.
41. Steingrund P. & Fernö A. (1997) Feeding behaviour of reared and wild cod and the effect of learning: two strategics of feeding on the two-spotted goby. Journal of Fish Biology 54, 334-348.
42. Sundström L.F., Lõhmus M. & Johnsson J.I. (2003) Investment in territorial defence depends on rearing environment in brown trout (Salmo trutta). Behavioral Ecology and Sociobiology 54, 249-255.
43. Tupper M. & Boutilier R.G. (1995a) Effects of habitat on settlement, growth and postsettlement survival of Atlantic cod (Gadus morhua). Canadian Journal of Fisheries and Aquatic Sciences 52, 1834-1841.
44. Tupper M. & Boutilier R.G. (1995b) Size and priority at settlement determine growth and competitive success of newly settled Atlantic cod. Marine Ecology Progress Series 118, 295-300.
45. Venter O., Grant J.W.A., Noel M.V. & Kim J.W. (2008) Mechanisms underlying the increase in young-of-the-year Atlantic salmon (Salmo salar) density with habitat complexity. Canadian Journal of Fisheries and Aquatic Sciences 65, 1956-1964.
46. Volpe J.P., Taylor E.B., Rimmer D.W. & Glickman B.W. (2000) Evidence of natural reproduction of aquaculture-escaped Atlantic salmon in a coastal British Columbia river. Conservation Biology 14, 899-903.