Results 21 to 30 of about 5,181 (201)

Pacific and Atlantic Lepeophtheirus salmonis (Krøyer, 1838) are allopatric subspecies: Lepeophtheirus salmonis salmonis and L. salmonis oncorhynchi subspecies novo [PDF]

open access: yesBMC Genetics, 2014
The salmon louse Lepeophtheirus salmonis is a parasitic copepod that infects salmonids in the Pacific and Atlantic oceans. Although considered as a single species, morphological and biological differences have been reported between lice from the two oceans.
Skern-Mauritzen, Rasmus   +2 more
openaire   +5 more sources

The influence of environmental factors on the external parasites of saithe Pollachachius virens (L.) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1995
The influence of age, length and migration pattern of saithe Pollachius virens in relation to infection with external parasites has been studied in three different areas on the west coast of Sweden. A total of six species of parasites were found.
J. Rokicki, O. Strömberg J.
doaj   +3 more sources

The caligid life cycle: new evidence fromLepeophtheirus elegansreconciles the cycles ofCaligusandLepeophtheirus(Copepoda: Caligidae) [PDF]

open access: yesParasite, 2013
The developmental stages of the sea louse Lepeophtheirus elegans (Copepoda: Caligidae) are described from material collected from marine ranched Korean rockfish, Sebastes schlegelii. In L. elegans, setal number on the proximal segment of the antennule increases from 3 in the copepodid to 27 in the adult.
Venmathi Maran, Balu Alagar   +7 more
openaire   +2 more sources

Aquaculture‐driven evolution of the salmon louse mtDNA genome

open access: yesEvolutionary Applications, 2023
Resistance toward the antiparasitic pyrethroid, deltamethrin, is reported in the Atlantic salmon louse (Lepeophtheirus salmonis salmonis), a persistent ectoparasite of farmed and wild salmonids.
Karoline Hasti Rutle   +10 more
doaj   +1 more source

Sea Lice Are Sensitive to Low Frequency Sounds

open access: yesJournal of Marine Science and Engineering, 2021
The salmon louse Lepeophtheirus salmonis is a major disease problem in salmonids farming and there are indications that it also plays a role in the decline of wild salmon stocks.
Marta Solé   +5 more
doaj   +1 more source

Temporal and spatial variations in lice numbers on salmon farms in the Hardanger fjord 2004-06 [PDF]

open access: yes, 2009
The long and narrow Hardanger fjord in western Norway has a high density of salmon farms and has had severe salmon lice, Lepeophtheirus salmonis, problems.
Bjørn   +23 more
core   +1 more source

Multiple gene analyses of caligid copepods indicate that the reduction of a thoracic appendage in Pseudocaligus represents convergent evolution [PDF]

open access: yes, 2013
Background: The Caligidae is a family of parasitic copepods containing over 30 recognised genera. They are\ud commercially important parasites as they cause disease in numerous finfish aquaculture facilities globally.\ud Morphological features are used ...
Anshary, Hilal
core   +3 more sources

Ectoparasitic copepod infestation on a wild population of Neotropical catfish Sciades herzbergii Bloch, 1794: Histological evidences of lesions on host

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2017
We analyzed the infestation of the attached copepod species Lepeophtheirus sp on a wild population of Sciades herzbergii. The infestation and occurrence of attached copepods were related to body size, maturity and sex of host and the presence of lesions ...
Deborah Fogel   +5 more
doaj   +1 more source

The use of prevalence as a measure of lice burden: a case study of Lepeophtheirus salmonis on Scottish Atlantic salmon, Salmo salar L., farms [PDF]

open access: yes, 2009
This study investigates the benefits of using prevalence as a summary measure of sea lice infestation on farmed Atlantic salmon, Salmo salar L. Aspects such as sampling effort, the relationship between abundance and prevalence arising from the negative ...
Baillie, M.   +3 more
core   +1 more source

Allee Effects May Slow the Spread of Parasites in a Coastal Marine Ecosystem [PDF]

open access: yes, 2011
Allee effects are thought to mediate the dynamics of population colonization, particularly for invasive species. However, Allee effects acting on parasites have rarely been considered in the analogous process of infectious disease establishment and ...
Connors, B. M.   +3 more
core   +1 more source

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