scholarly journals Sea lice infestation level alters salmon swimming depth in sea-cages

2016 ◽  
Vol 8 ◽  
pp. 429-435 ◽  
Author(s):  
S Bui ◽  
F Oppedal ◽  
L Stien ◽  
T Dempster
Keyword(s):  
Sea Lice ◽  
Infestation Level ◽  
Swimming Depth

scholarly journals Genome-scale comparative analysis for host resistance against sea lice between Atlantic salmon and rainbow trout

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pablo Cáceres ◽  
Agustín Barría ◽  
Kris A. Christensen ◽  
Liane N. Bassini ◽  
Katharina Correa ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Atlantic Salmon ◽  
Candidate Genes ◽  
Protein Phosphatase ◽  
Sea Lice ◽  
Genome Wide Association Studies ◽  
Dual Specificity ◽  
Dual Specificity Protein Phosphatase ◽  
Genomic Regions ◽  
Specificity Protein

AbstractSea lice (Caligus rogercresseyi) is an ectoparasite which causes major production losses in the salmon aquaculture industry worldwide. Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) are two of the most susceptible salmonid species to sea lice infestation. The objectives of this study were to: (1) identify genomic regions associated with resistance to Caligus rogercresseyi in Atlantic salmon and rainbow trout by performing single-step Genome-Wide Association studies (ssGWAS), and (2) identify candidate genes related to trait variation based on exploring orthologous genes within the associated regions across species. A total of 2626 Atlantic salmon and 2643 rainbow trout were challenged and genotyped with 50 K and 57 K SNP panels, respectively. We ran two independent ssGWAS for sea lice resistance on each species and identified 7 and 13 regions explaining more than 1% of the genetic variance for the trait, with the most important regions explaining 3% and 2.7% for Atlantic salmon and rainbow trout, respectively. We identified genes associated with immune response, cytoskeleton function, and cell migration when focusing on important genomic regions for each species. Moreover, we found 15 common orthogroups which were present in more than one associated genomic region, within- or between-species; however, only one orthogroup showed a clear potential biological relevance in the response against sea lice. For instance, dual-specificity protein phosphatase 10-like (dusp10) and dual-specificity protein phosphatase 8 (dusp8) were found in genomic regions associated with lice density in Atlantic salmon and rainbow trout, respectively. Dusp10 and dusp8 are modulators of the MAPK pathway and might be involved in the differences of the inflammation response between lice resistant and susceptible fish from both species. Our results provide further knowledge on candidate genes related to sea lice resistance and may help establish better control for sea lice in fish populations.

A SIMPLE AND SELECTIVE ELECTROCHEMICAL MAGNETO-ASSAY FOR SEA LICE eDNA DETECTION DEVELOPED WITH A QUALITY BY DESIGN APPROACH

2021 ◽  
pp. 148111
Author(s):  
Francesca Bettazzi ◽  
Serena Orlandini ◽  
Luna Zhang ◽  
Serena Laschi ◽  
Mari Mæland Nilsen ◽  
...  
Keyword(s):  
Quality By Design ◽  
Design Approach ◽  
Sea Lice ◽  
Quality By Design Approach

Transcriptome immunomodulation of in-feed additives in Atlantic salmon Salmo salar infested with sea lice Caligus rogercresseyi

2015 ◽  
Vol 47 (1) ◽  
pp. 450-460 ◽  
Author(s):  
Gustavo Núñez-Acuña ◽  
Ana Teresa Gonçalves ◽  
Valentina Valenzuela-Muñoz ◽  
Jorge Pino-Marambio ◽  
Simon Wadsworth ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feed Additives ◽  
Sea Lice ◽  
Atlantic Salmon Salmo Salar

scholarly journals Coinfection takes its toll: Sea lice override the protective effects of vaccination against a bacterial pathogen in Atlantic salmon

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Carolina Figueroa ◽  
Paulina Bustos ◽  
Débora Torrealba ◽  
Brian Dixon ◽  
Carlos Soto ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Bacterial Pathogen ◽  
Sea Lice ◽  
Protective Effects

Reduced growth in wild juvenile sockeye salmon Oncorhynchus nerka infected with sea lice

2017 ◽  
Vol 91 (1) ◽  
pp. 41-57 ◽  
Author(s):  
S. C. Godwin ◽  
L. M. Dill ◽  
M. Krkošek ◽  
M. H. H. Price ◽  
J. D. Reynolds
Keyword(s):  
Sockeye Salmon ◽  
Oncorhynchus Nerka ◽  
Sea Lice
Sign in / Sign up

Export Citation Format

Share Document