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Lepeophtheirus salmonis (Salmon louse, Lsal2020) (UVic_Lsal_1.0)

Lepeophtheirus salmonis (Salmon louse, Lsal2020) Assembly and Gene Annotation

About Lepeophtheirus salmonis

The salmon louse, Lepeophtheirus salmonis is a species of copepod in the genus Lepeophtheirus. It is a sea louse, a parasite living mostly on salmon, particularly on Pacific and Atlantic salmon and sea trout, but is also sometimes found on the three-spined stickleback. It feeds on the mucus, skin and blood of the fish. Once detached, they can be blown by wind across the surface of the sea, like plankton. When they encounter a suitable marine fish host, they adhere themselves to the skin, fins, or gills of the fish, and feed on the mucus or skin. Sea lice only affect fish and are not harmful to humans.

Picture credit: Creative Commons Attribution-Share Alike 3.0 via Wikimedia Commons (Image source) Taxonomy ID 72036

(Text from Wikipedia.)

More information General information about this species can be found in Wikipedia


The assembly presented here has been imported from INSDC and is linked to the assembly accession [GCA_016086655.3].

The total length of the assembly is 647191672 bp contained within 8066 scaffolds. The scaffold N50 value is 48457437, the scaffold L50 value is 6. Assembly gaps span 60446 bp. The GC% content of the assembly is 31.0%.


Ensembl Metazoa displaying genes imported from NCBI RefSeq annotation. Small RNA features, protein features, BLAST hits and cross-references have been computed by Ensembl Metazoa.



AssemblyUVic_Lsal_1.0, INSDC Assembly GCA_016086655.3,
Database version112.1
Golden Path Length647,191,672
Genebuild byNCBI
Genebuild methodImport
Data sourceDepartment of Biology, University of Victoria

Gene counts

Coding genes14,014
Non coding genes4,583
Small non coding genes623
Long non coding genes3,959
Misc non coding genes1
Gene transcripts27,678