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Petra Rodewald, P. Hyvärinen, H. Hirvonen (2011)
Wild origin and enriched environment promote foraging rate and learning to forage on natural prey of captive reared Atlantic salmon parrEcology of Freshwater Fish, 20
E. Jokikokko, I. Kallio‐Nyberg, I. Saloniemi, E. Jutila (2006)
The survival of semi‐wild, wild and hatchery‐reared Atlantic salmon smolts of the Simojoki River in the Baltic SeaJournal of Fish Biology, 68
T. Bosakowski, E. Wagner (1995)
Experimental use of cobble substrates in concrete raceways for improving fin condition of cutthroat (Oncorhynchus clarki) and rainbow trout (O. mykiss)Aquaculture, 130
J. Fox, S. Weisberg (2011)
An R companion to applied regression
D. Benhaïm, Camille Leblanc, G. Lucas (2009)
Impact of a new artificial shelter on Arctic charr (Salvelinus alpinus, L.) behaviour and culture performance during the endogenous feeding period.Aquaculture, 295
J. Jensen, D. Alderdice (1983)
Changes in mechanical shock sensitivity of coho salmon (Oncorhynchus kisutch) eggs during incubationAquaculture, 32
D. Marr (1963)
The influence of surface contour on the behaviour of trout alevins S. trutta L.Animal Behaviour, 11
J. Johnsson, S. Brockmark, J. Näslund (2014)
Environmental effects on behavioural development consequences for fitness of captive-reared fishes in the wild.Journal of fish biology, 85 6
R. Nortvedt, T. Hansen, M. Holm, O. Torrissen (1985)
The effect of illumination on alevins of Atlantic salmon (Salmo salar) and rainbow trout (S. gairdneri), incubated on different substrates
P. Hyvärinen, Petra Rodewald (2013)
Enriched rearing improves survival of hatchery-reared Atlantic salmon smolts during migration in the River TornionjokiCanadian Journal of Fisheries and Aquatic Sciences, 70
D. Fraser, A. Houde, P. Debes, P. O’Reilly, J. Eddington, J. Hutchings (2010)
Consequences of farmed-wild hybridization across divergent wild populations and multiple traits in salmon.Ecological applications : a publication of the Ecological Society of America, 20 4
R. Kihslinger, G. Nevitt (2006)
Early rearing environment impacts cerebellar growth in juvenile salmonJournal of Experimental Biology, 209
(2017)
R: A language and environment for statistical computing
E. Leitritz, R. C. Lewis (1976)
Trout and salmon culture (Hatchery methods)
M. Rosengren, E. Kvingedal, J. Näslund, J. Johnsson, K. Sundell (2017)
Born to be wild: effects of rearing density and environmental enrichment on stress, welfare, and smolt migration in hatchery-reared Atlantic salmonCanadian Journal of Fisheries and Aquatic Sciences, 74
J. Näslund, M. Rosengren, D. Villar, L. Gansel, J. Norrgård, Lo Persson, J. Winkowski, E. Kvingedal (2013)
Hatchery tank enrichment affects cortisol levels and shelter-seeking in Atlantic salmon (Salmo salar)Canadian Journal of Fisheries and Aquatic Sciences, 70
R. Stringwell, A. Lock, C. Stutchbury, E. Baggett, J. Taylor, P. Gough, C. Leaniz (2014)
Maladaptation and phenotypic mismatch in hatchery-reared Atlantic salmon Salmo salar released in the wild.Journal of fish biology, 85 6
A. Zuur, E. Ieno, N. Walker, A. Saveliev, Graham Smith (2009)
Mixed Effects Models and Extensions in Ecology with R
M. Evans, T. Hori, M. Rise, I. Fleming (2015)
Transcriptomic Responses of Atlantic Salmon (Salmo salar) to Environmental Enrichment during Juvenile RearingPLoS ONE, 10
A. Alanärä (1993)
Significance of substrate and the timing of start-feeding in alevins of Arctic charr (Salvelinus alpinus)Aquaculture, 116
R. Young (2003)
Environmental Enrichment for Captive Animals
J. C. Pinheiro, D. M. Bates (2000)
Mixed‐effects models in S and S‐plus
A. Salvanes, O. Moberg, L. Ebbesson, T. Nilsen, K. Jensen, V. Braithwaite (2013)
Environmental enrichment promotes neural plasticity and cognitive ability in fishProceedings of the Royal Society B: Biological Sciences, 280
J. Näslund, K. Aarestrup, S. Thomassen, J. Johnsson (2012)
Early enrichment effects on brain development in hatchery-reared Atlantic salmon (Salmo salar): no evidence for a critical periodCanadian Journal of Fisheries and Aquatic Sciences, 69
J. Näslund, J. Johnsson (2016)
Environmental enrichment for fish in captive environments: effects of physical structures and substratesFish and Fisheries, 17
Katharina Sternecker, J. Geist (2010)
The effects of stream substratum composition on the emergence of salmonid fryEcology of Freshwater Fish, 19
T. Heming, R. Preston (1981)
Differential effect of formalin preservation on yolk and tissue of young chinook salmon (Oncorhynchus tshawytscha Walbaum)Canadian Journal of Zoology, 59
J. Pinheiro, D. Bates, S. DebRoy, D. Sarkar (2017)
Nlme: Linear and nonlinear mixed effects models, R package version 3.1‐131
R. Peterson, D. Martin-Robichaud (1995)
Yolk utilization by Atlantic salmon (Salmo salar L.) alevins in response to temperature and substrateAquacultural Engineering, 14
T. Hansen, D. Møller (1985)
Yolk Absorption, Yolk Sac Constrictions, Mortality, and Growth During First Feeding of Atlantic Salmon (Salmo salar) Incubated on Astro-turfCanadian Journal of Fisheries and Aquatic Sciences, 42
R. Nortvedt (1986)
The activity of alevins of Atlantic salmon and rainbow trout, incubated on different substrates
R. Nortvedt (1986)
The timing of emergence of Atlantic salmon and rainbow trout, incubated on different substrates
S. Pinho, Jéssica Brol, E. Almeida, G. Mello, G. Jerônimo, M. Emerenciano (2016)
Effect of stocking density and vertical substrate addition on growth performance and health status of fat snook Centropomus parallelusAquaculture, 457
M. Koskinen, T. Haugen, C. Primmer (2002)
Contemporary fisherian life-history evolution in small salmonid populationsNature, 419
T. Hansen (1985)
Artificial hatching substrate: Effect on yolk absorption, mortality and growth during first feeding of sea trout (Salmo trutta)Aquaculture, 46
R. A. Bams (1969)
Symposium on salmon and trout in streams. Lectures in fisheries
Environmental enrichment aims for a deliberate increase in structural complexity in otherwise plain rearing units, helping to reduce aberrant traits and promote welfare of fish kept in captivity. Before putting enrichment protocols into practice, however, practitioners like hatchery managers need clear guidelines on enrichment measures and on the substrates used. In the present study, we used rainbow trout as a model species for salmonid rearing and investigated the use of a single layer of three different gravel types, i.e., small (4–8 mm), medium (8–16 mm) and large (16–32 mm), for environmental enrichment during egg incubation, endogenous and first feeding of rainbow trout and compared this to a barren control. From the egg stage onwards, we determined mortality, fungal prevalence as well as growth of larvae and fingerlings. We found that gravel size significantly affected mortality and fungal prevalence with the smallest gravel size and the control showing the lowest incidents. Growth of larvae and fingerlings was not affected by gravel, both when compared between gravel types and to the barren control. When using gravel for environmental enrichment in salmonid hatcheries, a small gravel size should be used. Small gravel provides the fish with a more natural environment without compromising practical feasibility of enrichment in hatcheries, still allowing for easy visual inspection and manual control of the reared fish.
Journal of Applied Ichthyology – Wiley
Published: Apr 1, 2019
Keywords: ; ; ; ; ;
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