Upstream migratory behaviour of wild and ranched Atlantic salmon Salmo salar at a natural obstacle in a coastal spate river

2013 ◽  
Vol 83 (3) ◽  
pp. 515-530 ◽  
Author(s):  
R. J. Kennedy ◽  
I. Moffett ◽  
M. M. Allen ◽  
S. M. Dawson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar

Migratory behaviour of wild and farmed Atlantic salmon (Salmo salar) during spawning

1995 ◽  
Vol 46 (1) ◽  
pp. 1-7 ◽  
Author(s):  
F. Okland ◽  
T. G. Heggberget ◽  
B. Jonsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar ◽  
Farmed Atlantic Salmon

Prespawning migratory behaviour of wild and farmed Atlantic salmon, Salmo salar L, in a north Norwegian river

1996 ◽  
Vol 27 (5) ◽  
pp. 313-322 ◽  
Author(s):  
T G Heggberget ◽  
F økland ◽  
O Ugedal
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar ◽  
Farmed Atlantic Salmon

scholarly journals The influence of sluice gate operation on the migratory behaviour of Atlantic salmon Salmo salar (L.) smolts

2016 ◽  
Vol 1 (1-2) ◽  
pp. 90-101 ◽  
Author(s):  
Chris J. Gardner ◽  
Joel Rees-Jones ◽  
Gethin Morris ◽  
Polly G. Bryant ◽  
Martyn C. Lucas
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Sluice Gate ◽  
Gate Operation ◽  
Atlantic Salmon Salmo Salar

Downstream migration in Atlantic salmon (Salmo salar) smolt sibling groups

2004 ◽  
Vol 61 (3) ◽  
pp. 328-331 ◽  
Author(s):  
K Håkan Olsén ◽  
Erik Petersson ◽  
Bjarne Ragnarsson ◽  
Hans Lundqvist ◽  
Torbjörn Järvi
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Kin Recognition ◽  
Juvenile Fish ◽  
Downstream Migration ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar ◽  
Seaward Migration ◽  
Structured Groups ◽  
Experimental Stream

Previous studies have shown kin recognition abilities in salmonid fish. Some authors have suggested that the attraction of juvenile fish to siblings may indicate preference for shoaling with kin. The aim of the present study is to test the prerequisite for the hypothesis that siblings swim spatially closer than unrelated fish during their seaward migration as smolts. Atlantic salmon (Salmo salar) eggs from three families were each reared in two tanks to create familiar and unfamiliar sibling smolts. Before the experiment started they were tagged individually withpassive integrated transponders (PITs). Twelve individuals from each of six groups were mixed and released together at several occasions in the upper end of the 400-m-long experimental stream. An automatic PIT-monitoring system placed in the outlet recorded the time for passage of each individual leaving the stream. Eighty-five percent of the juveniles monitored by the PIT antenna showed downstream migration at night hours and they migrated significantly more often closer in time to both known and unknown siblings than to unrelated fish. The results suggest that there is a genetic component in the migratory behaviour of Atlantic salmon smolts and support the hypothesis that smolts migrate in kin-structured groups.

The pre-spawning migratory behaviour of Atlantic salmon Salmo salar in a large lacustrine catchment

2016 ◽  
Vol 89 (3) ◽  
pp. 1651-1665 ◽  
Author(s):  
R.J. Kennedy ◽  
M. Allen
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar

The migratory behaviour of wild Atlantic salmon (Salmo salar) smolts in the estuary of the River Conwy, North Wales

1995 ◽  
Vol 52 (9) ◽  
pp. 1923-1935 ◽  
Author(s):  
A. Moore ◽  
E. C. E. Potter ◽  
N. J. Milner ◽  
S. Bamber
Keyword(s):  
Atlantic Salmon ◽  
Water Column ◽  
Fresh Water ◽  
Seasonal Change ◽  
Salmo Salar ◽  
Coastal Waters ◽  
Salt Water ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar ◽  
North Wales

Thirty-two wild Atlantic salmon (Salmo salar) smolts, tagged with miniature acoustic transmitters, were tracked in the River Conwy, North Wales, to describe the freshwater and estuarine patterns of migration. Migration in fresh water was predominantly nocturnal, although there was a seasonal change in this pattern with later run fish moving during both the day and night. Smolts tagged earlier in the study spent significantly longer in the river (mean 456 ± 43 h) before migrating into coastal waters than fish tagged later in the study (mean 201 ± 30 h). The movement of smolts through the estuary was indicative of a nocturnal selective ebb tide transport pattern of migration. All of the smolts migrated seawards on an ebb tide close to the surface and within the fastest moving section of the water column. The nocturnal pattern of migration would appear to be the result of an endogenous rhythm of swimming activity that results in the smolts moving up into the water column after dusk and migrating seawards. Smolt migration in the lower portion of the estuary was indicative of active directed swimming and there was no apparent period of acclimation required when moving from fresh to salt water.

Prespawning migratory behaviour and spawning success of sea-ranched Atlantic salmon, Salmo salar L., in the River Gudenaa, Denmark

2000 ◽  
Vol 7 (5) ◽  
pp. 387-400 ◽  
Author(s):  
K. Aarestrup ◽  
N. Jepsen ◽  
G. Rasmussen ◽  
F. Økland ◽  
E. B. Thorstad ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Migratory Behaviour ◽  
Atlantic Salmon Salmo Salar ◽  
Spawning Success

Important open-ocean areas for northern Atlantic salmon (Salmo salar) — as estimated using a simple ambient-temperature approach

2013 ◽  
Vol 70 (1) ◽  
pp. 101-104 ◽  
Author(s):  
Cedar M. Chittenden ◽  
Per Fauchald ◽  
Audun H. Rikardsen
Keyword(s):  
Atlantic Salmon ◽  
Ambient Temperature ◽  
Salmo Salar ◽  
Barents Sea ◽  
Polar Front ◽  
Open Ocean ◽  
Cycle Period ◽  
Migratory Behaviour ◽  
Spatial And Temporal Patterns ◽  
Atlantic Salmon Salmo Salar

Tracking salmon migratory behaviour in the open ocean has been a challenge to researchers. As the marine phase essentially determines the size and survival of individuals and populations, it is arguably the most influential life cycle period for salmon population dynamics. Thus, methods providing an understanding of the spatial and temporal patterns of salmon marine migratory behaviour could improve the species' management and conservation. A model was developed that correlated temperature data from archival tags with sea-surface temperatures (SSTs) to identify the probable marine feeding areas of a northeastern Atlantic salmon (Salmo salar) population over 3 years. The marine distribution of the tagged population extended from the Greenland Sea, north to Svalbard, and into the eastern Barents Sea. Higher probability occupancy zones overlapped with the polar front area from September to April during all 3 years. While the migratory behaviour appeared similar between years and seasons, the fish were distributed farther south and west during the autumn of 2007 than during the autumns of 2006 and 2008. This may have been related to warmer summer SSTs and an earlier annual maximum SST. The ambient-temperature approach developed here is a cost-effective way to monitor the open-ocean migratory patterns of surface-oriented marine fishes.

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