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Atlantic salmon infected with salmon lice are more susceptible to new lice infections.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ugelvik, M. S. Mo, Tian-shi Mennerat, Adèle Skorping, Arne |
| Copyright Year | 2017 |
| Abstract | Aggregation is commonly observed for macroparasites, but its adaptive value remains unclear. Heavy infestations intensities may lead to a decrease in some fitness-related traits of parasites (e.g. parasite fecundity or survival). However, to a dioecious parasite, increased aggregation could also increase the chance of finding individuals of the opposite sex. In a laboratory experiment, we tested if previous experience with salmon lice (Lepeophtheirus salmonis) affected susceptibility of Atlantic salmon (Salmo salar) to later exposure to the same parasite species. We found that currently infected fish got higher intensities of new lice than naive fish. This suggests that hosts already carrying parasites are more susceptible to new lice infections. For this dioecious parasite, such positive density dependence might be adaptive, ensuring successful reproduction under conditions of low lice densities by increasing the probability of both sexes infecting the same host. |
| Starting Page | 311 |
| Ending Page | 317 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://bio.uib.no/te/papers/Ugelvik_2017_Atlantic_salmon_infected.pdf |
| PubMed reference number | 27334700v1 |
| Alternate Webpage(s) | https://doi.org/10.1111/jfd.12514 |
| DOI | 10.1111/jfd.12514 |
| Journal | Journal of fish diseases |
| Volume Number | 40 |
| Issue Number | 3 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Aspartate Transaminase Atlantic salmon allergenic extract 50 MG/ML Injectable Solution Epstein-Barr Virus Infections Fertility Hepatitis B Host-Parasite Interactions Oncorhynchus kisutch Parasites Salmo salar Trait density |
| Content Type | Text |
| Resource Type | Article |
