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Abstract

The expansion of ballan wrasse farming, used as a biological control against sea lice in Atlantic salmon, is constrained by the slow growth rate in the species and extended period required to reach deployment size. Rearing temperature and diets are the two main growth limiting factors in fish. In...

Author(s)
Cavrois-Rogacki, T.; Davie, A.; Monroig, O.; Migaud, H.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Aquaculture, 2019, 511, pp 734237
Abstract

Two groups of PIT-tagged lumpfish (initial mean weight±SD, 22.3±2.5 g) were established in land-based tanks. One group received marine pelleted feed (MF group) whilst the other received a mix of pelleted feed, live adult Artemia and frozen sea lice (LF group), both groups with a feeding rate of 2%...

Author(s)
Imsland, A. K. D.; Frogg, N.; Stefansson, S. O.; Reynolds, P.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Aquaculture, 2019, 511, pp 734224
Abstract

Two duplicate groups of individually tagged lumpfish (mean initial weight: 21.5±3.2 g) were fed either a commercially available lumpfish feed or feed blocks for a period of 123 days. The aim was to evaluate and compare the effects of these feed types on growth, cataract development and...

Author(s)
Imsland, A. K. D.; Reynolds, P.; Jonassen, T. M.; Hangstad, T. A.; Adron, J.; Elvegǻrd, T. A.; Urskog, T. C.; Hanssen, A.; Mikalsen, B.
Publisher
Wiley, Oxford, UK
Citation
Aquaculture Research, 2019, 50, 7, pp 1952-1963
Abstract

Lumpfish (Cyclopterus lumpus), a native fish of the North Atlantic Ocean, is utilized as cleaner fish to biocontrol sea lice infestations in Atlantic salmon aquaculture. However, bacterial infections are affecting cleaner fish performance. Vibrio anguillarum, the aetiological agent of vibriosis, is ...

Author(s)
Setu Chakraborty; Trung Cao; Hossain, A.; Gnanagobal, H.; Vasquez, I.; Boyce, D.; Santander, J.
Publisher
Wiley, Oxford, UK
Citation
Journal of Fish Diseases, 2019, 42, 7, pp 1057-1064
Abstract

Ballan wrasse (Labrus bergylta) are used extensively as cleaner fish to control salmon lice (Lepeophtheirus salmonis) infestations in the Atlantic salmon (Salmon salar) aquaculture industry. Fish are either cultured or caught in the wild before being transferred to salmon sea cages. Ballan wrasse ...

Author(s)
Yuen, J. W.; Dempster, T.; Oppedal, F.; Hvas, M.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Biological Control, 2019, 135, pp 117-123
Abstract

Three duplicate groups of individually tagged lumpfish (mean initial weight: 22.3±2.5 g) were fed either daily (7DW); four days per week (4DW) or three days per week (3DW) at a feeding rate of 2% body weight day-1 for a period of 126 days. There were significant differences in growth rates between...

Author(s)
Imsland, A. K. D.; Reynolds, P.; Jonassen, T. M.; Hangstad, T. A.; Elvegǻrd, T. A.; Urskog, T. C.; Hanssen, A.; Mikalsen, B.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Aquaculture, 2019, 501, pp 161-168
Abstract

In the present study, it was attempted to quantify sea lice grazing in lumpfish by using a recently published qPCR assay. This method utilizes a small aliquot (10 µL) of the stomach fluid of the lumpfish which can be collected using a sterile, 85 mm long pipette tip. We tested if repetitive...

Author(s)
Imsland, A. K. D.; Micallef, G.; Korsnes, K.; Reynolds, P.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Aquaculture, 2019, 500, pp 640-644
Abstract

Two batches of lumpfish eggs were incubated at three temperature regimes; 1-Ambient seawater 4-6°C (cold), 2-Ambient seawater for 10 days followed by a gradual increase to 10°C (gradient), 3-Constant 10°C seawater (warm). The eggs incubated in cold water had the highest egg mortality (38.5%±15.7)...

Author(s)
Imsland, A. K. D.; Danielsen, M.; Jonassen, T. M.; Hangstad, T. A.; Falk-Petersen, I. B.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Aquaculture, 2019, 498, pp 217-222
Abstract

Atlantic salmon farming is one of the largest aquaculture sectors in the world. A major impact on farm economics, fish welfare and, potentially, nearby wild salmonid populations, is the sea louse ectoparasite Lepeophtheirus salmonis. Sea louse infestations are most often controlled through...

Author(s)
McEwan, G. F.; Groner, M. L.; Cohen, A. A. B.; Imsland, A. K. D.; Revie, C. W.
Publisher
Inter-Research Science Center, Oldendorf, Germany
Citation
Diseases of Aquatic Organisms, 2019, 133, 1, pp 69-82
Abstract

Samples from moribund lumpfish were collected in a marine hatchery in Scotland in 2015. Black nodules were noted on the skin, and gills and fungal hyphae were extensively distributed in musculature and internal organs. Multifocal chronic inflammatory lesions displaced structures in all affected...

Author(s)
Saraiva, M.; Beckmann, M. J.; Pflaum, S.; Pearson, M.; Carcajona, D.; Treasurer, J. W.; West, P. van
Publisher
Wiley, Oxford, UK
Citation
Journal of Fish Diseases, 2019, 42, 3, pp 335-343

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