Caligus rogercresseyi as a potential vector for transmission of Infectious Salmon Anaemia (ISA) virus in Chile

Oelckers, Karin; Vike, Siri; Duesund, Henrik; Gonzàlez, Jordi; Wadsworth, Simón; Nylund, Are

doi:10.1016/j.aquaculture.2013.10.016

Cited by 46 publications

(31 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…; Oelckers et al . ). Monogeneans and copepod caligids are two groups of highly pathogenic ectoparasites that cause significant injuries in farmed fish; they have been attributed as vectors of some pathogenic micro‐organisms (Xu et al .…”

Section: Accession Number Of Bacteria Species Site Of Infection Hosmentioning

confidence: 97%

Potential role of ectoparasites (Zeuxapta seriolae and Caligus lalandei) in the transmission of pathogenic bacteria in yellowtail kingfish Seriola lalandi, inferred from cultivable microbiota and molecular analyses

Sepúlveda

Torres

Infante

et al. 2016

Journal of Fish Diseases

View full text Add to dashboard Cite

Section: Accession Number Of Bacteria Species Site Of Infection Hosmentioning

confidence: 97%

Potential role of ectoparasites (Zeuxapta seriolae and Caligus lalandei) in the transmission of pathogenic bacteria in yellowtail kingfish Seriola lalandi, inferred from cultivable microbiota and molecular analyses

Sepúlveda

Torres

Infante

et al. 2016

Journal of Fish Diseases

View full text Add to dashboard Cite

“…Sea lice are ectoparasitic copepods that have become one of the main threats to salmon and trout culturing worldwide (Burridge, Lyons, Wong, MacKeigan, & VanGeest, ). This ectoparasite attaches to the host skin where it feeds on mucus, generating skin lesions, exposing the fishes to secondary infections, and even causing death during major infestation periods (Costello, ; Oelckers et al, ; Pike & Wadsworth, ; Valdés‐Donoso et al, ). Depending on the infestation intensity, salmon may also reduce their feeding rate, which has a negative impact on their growth (Costello, ; Johnson, Treasurer, Bravo, Nagasawa, & Kabata, ; Pike & Wadsworth, ).…”

Section: Introductionmentioning

confidence: 99%

The filter‐feeding bivalve Mytilus chilensis capture pelagic stages of Caligus rogercresseyi: A potential controller of the sea lice fish parasites

Montory

Chaparro

Averbuj

et al. 2020

Journal of Fish Diseases

View full text Add to dashboard Cite

The copepod Caligus rogercresseyi is an ectoparasite of several salmonid species. The pumping activity of filter‐feeding molluscs could reduce the abundance of copepod dispersive larval stages in the water column. In this research, nauplius II and copepodid larvae of C. rogercresseyi were exposed to filtering mussels (Mytilus chilensis) of different sizes. These mussels were able to filter both larval stages, although they were more efficient in catching nauplius II. The fact that nauplius II were ingested more efficiently could be explained by their smaller size, lower swimming velocity (escape) and longer resting times between movements, when they were exposed to the influx of water around the inhalant area of the mussels. Larger mussels were more effective filtering C. rogercresseyi larvae due to their larger inhalant area and the related water influx. Additionally, the results suggest that larvae captured by the mussels can be incorporated into pseudofaeces or ingested and then released as part of the faeces. Thus, high concentrations of M. chilensis surrounding salmon farms may act as biological barriers, reducing the density of copepod dispersive larval stages and, thus, salmon infestations.

show abstract

“…Recently, Oelckers et al . () provided evidence of transmission of the infectious salmon anaemia virus (ISAV) from Caligus rogercresseyi up to 48 h after being removed from an infected salmon host.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida

Novak

Lewis

Collicutt

et al. 2016

Journal of Fish Diseases

View full text Add to dashboard Cite

A bacteria-parasite challenge model was used to study the role of sea lice, Lepeophtheirus salmonis (Copepoda), as a vector of Aeromonas salmonicida subsp. salmonicida. Three hypotheses were tested: (i) L. salmonis can acquire A. salmonicida subsp. salmonicida via water bath exposure; (ii) L. salmonis can acquire the bacteria via parasitizing infected Atlantic salmon, Salmo salar; and (iii) L. salmonis can transmit the bacteria to naïve Atlantic salmon via parasitism. Adult L. salmonis exposed to varying A. salmonicida subsp. salmonicida suspensions (10(1) -10(7) cells mL(-1) ) for 1.0, 3.0 or 6.0 h acquired the bacteria externally (12.5-100%) and internally (10.0-100%), with higher prevalences associated with the highest concentrations and exposures. After exposure to 10(7) cells mL(-1) , viable A. salmonicida subsp. salmonicida could be isolated from the external carapace of L. salmonis for 120 h. Lepeophtheirus salmonis also acquired the bacteria externally and internally from parasitizing infected fish. Bacterial transmission was observed only when L. salmonis had acquired the pathogen internally via feeding on 'donor fish' and then by parasitizing smaller (<50 g) 'naive' fish. Under specific experimental conditions, L. salmonis can transfer A. salmonicida subsp. salmonicida via parasitism; however, its role as a mechanical or biological vector was not defined.

show abstract

Caligus rogercresseyi as a potential vector for transmission of Infectious Salmon Anaemia (ISA) virus in Chile

Cited by 46 publications

References 37 publications

Potential role of ectoparasites (Zeuxapta seriolae and Caligus lalandei) in the transmission of pathogenic bacteria in yellowtail kingfish Seriola lalandi, inferred from cultivable microbiota and molecular analyses

Potential role of ectoparasites (Zeuxapta seriolae and Caligus lalandei) in the transmission of pathogenic bacteria in yellowtail kingfish Seriola lalandi, inferred from cultivable microbiota and molecular analyses

The filter‐feeding bivalve Mytilus chilensis capture pelagic stages of Caligus rogercresseyi: A potential controller of the sea lice fish parasites

Investigations on the role of the salmon louse, Lepeophtheirus salmonis (Caligidae), as a vector in the transmission of Aeromonas salmonicida subsp. salmonicida

Contact Info

Product

Resources

About