Results 31 to 40 of about 1,311 (226)

Prediction of size-dependent risk of salmon smolt (Salmo salar) escape through fish farm nets

Aquacultural Engineering, 2020
Abstract The escape of small smolt through farm cage netting is a major challenge faced by the Norwegian salmon farming industry. Escape can occur when the smolt placed in the cages are smaller than the size estimated by the farmers. Furthermore, one may assume wrong mesh-properties as the cage netting change shape and/or state from stiff (mesh bars ...
Sistiaga, Manu Berrondo, Herrmann, Bent, Forås, Eskil, Frank, Kevin, Sunde, Leif Magne   +4 more
openaire   +4 more sources

Abundance of native fishes, wild‐introduced salmonids and escaped farmed rainbow trout in a Patagonian reservoir

Lakes & Reservoirs: Science, Policy and Management for Sustainable Use, 2014
AbstractThe introduction of salmonids in Patagonia has resulted in significant impacts on its lakes, as well as a major impact on streams, in which native fishes seem to have been displaced almost completely by rainbow trout (Oncorhynchus mykiss). Another perspective is that the introduced salmonid species have resulted in wild fish populations that ...
Cussac, Victor Enrique, Becker, Leandro Anibal, Aigo, Juana del Carmen, Conte-Grand, Cecilia, Blasetti, Guillermo, Cordero, Pedro, Crichigno, Sonia Alejandra, Nabaes Jodar, Diego Nicolás   +7 more
openaire   +2 more sources

Impacts of wild fishes attracted to open-cage salmonid farms in Norway

Aquaculture Environment Interactions, 2014
Salmonid farming affects both the environment and other industries, with impacts of wild fish attracted to fish farms being a major concern. Here, we summarized existing knowledge on the impacts of such aggregations around open-cage salmonid farms in ...
I Uglem, Ø Karlsen, P Sanchez-Jerez, BS Sæther   +3 more
doaj   +1 more source

Risk assessment on reduced animal welfare by marking and tracking of farmed fish and fish for cultivation

, 2016
According to the NFSA, farmed fish escaping from sea-cage aquaculture may constitute serious environmental damage, foremost by interbreeding with wild fish. Governmental management is aiming at preventing the escape of farmed fish and to remove escapees.
Norwegian Scientific Committee for Food Safety
core   +1 more source

Risks to stocks of native trout of the genus Salmo (Actinopterygii: Salmoniformes: Salmonidae) of Serbia and management for their recovery [PDF]

Acta Ichthyologica et Piscatoria, 2015
Background. Insufficiently controlled stocking compromises the high diversity of wild trout stocks of Serbia. Native brown trout, Salmo cf. trutta Linnaeus, 1758, and Macedonian trout, Salmo macedonicus (Karaman, 1924), reveal remarkable diversity ...
P. Simonović, Z. Vidović, A. Tošić, D. Škraba, J. Čanak-Atlagić, V. Nikolić   +5 more
doaj   +3 more sources

Siblingship tests connect two seemingly independent farmed Atlantic salmon escape events

Aquaculture Environment Interactions, 2016
Aquaculture escapees represent a threat to the genetic integrity of native populations, may spread infectious agents and display ecological interactions with wild fish.
M Quintela, V Wennevik, AGE Sørvik, Ø Skaala, OT Skilbrei, K Urdal, BT Barlaup, KA Glover   +7 more
doaj   +1 more source

A pan-European valuation of the extent, causes and cost of escape events from sea cage fish farming

Aquaculture, 2015
AbstractAs part of an EU funded 7th Framework project, Prevent Escape, a programme of research was undertaken to document the extent, size and knowledge of the causes of escapes from marine fin fish farms in Europe over a three year period. Escape incidents were identified and assessed through questionnaires across the 6 countries (Ireland, UK, Norway,
Jackson, Dave, Drumm, Alan, McEvoy, Sarah, Mendiola, Diego, Gabina, Gorka, Borg, Joseph A., Papageorgiou, Nafsika, Karakassis, Yannis, Black, Kenneth D., Jensen, Osten   +9 more
openaire   +3 more sources

Genetic analysis of Atlantic salmon captured in a netting station reveals multiple escapement events from commercial fish farms [PDF]

Fisheries Management and Ecology, 2012
AbstractMicrosatellite DNA analysis and statistical assignment methods were implemented to identify the origin of 190 farmed escaped Atlantic salmon recaptured over a period of 2 months at a netting station located in Trondheim fjord, Norway. Samples were also collected from farms within the region. The escapees originated from a minimum of two sources,
Z. Zhang, K. A. Glover, V. Wennevik, T. Svåsand, A. G. E. Sørvik, P. Fiske, S. Karlsson, Ø. Skaala   +7 more
openaire   +1 more source

Adult recaptures of farmed Atlantic salmon post-smolts allowed to escape during summer [PDF]

, 2010
The influence of time of escape on survival to adulthood was tested in farmed Atlantic salmon Salmo salar smolt and post-smolts. Escape events were simulated in a small fjord in western Norway during and after the natural period of smolt migration by ...
Skilbrei, Ove, OT Skilbrei
core   +1 more source

Genetic screening of farmed Atlantic salmon escapees demonstrates that triploid fish display reduced migration to freshwater [PDF]

, 2016
Each year, hundreds of thousands of farmed Atlantic salmon escape from fish farms into the wild. Some of these escapees enter freshwater, and manage to interbreed with native populations. To hinder further genetic introgression in native populations, the
K. Urdal, Skilbrei, Ove, Madhun, Abdullah Sami, Y. Tang, Seliussen, Bjørghild Breistein, V. Wennevik, Sørvik, Anne Grete Eide, Skaala, Øystein, O. T. Skilbrei, K. A. Glover, J. B. Bos, L. Unneland, B. B. Seliussen, A. G. E. Sørvik, Ø. Skaala, Bos, J. B., A. S. Madhun, Unneland, Laila, Glover, Kevin, Tang, Y., Urdal, Kurt, Wennevik, Vidar, Skilbrei, Ove Tommy   +22 more
core   +1 more source