The settlement and reproductive success of Lepeophtheirus salmonis (Krøyer 1837; Copepoda: Caligidae) on atypical hosts
Identifieur interne : 000473 ( Main/Exploration ); précédent : 000472; suivant : 000474The settlement and reproductive success of Lepeophtheirus salmonis (Krøyer 1837; Copepoda: Caligidae) on atypical hosts
Auteurs : Campbell C. Pert [Royaume-Uni] ; A Jennifer Mordue Luntz [Royaume-Uni] ; Bríd O'Shea [Royaume-Uni] ; Ian R. Bricknell [Royaume-Uni, États-Unis]Source :
- Aquaculture Research [ 1355-557X ] ; 2012-05.
English descriptors
Abstract
The reproductive success of Lepeophtheirus salmonis settled on host and non‐host fish has been compared. Triplicate single species tanks of Atlantic salmon, marine three‐spined sticklebacks, saithe and Atlantic cod were exposed to 10 adult female L. salmonis per tank (n=30 lice per species). Adult female L. salmonis settlement and egg string production occurred only on salmon and cod, with no egg production occurring on saithe and three‐spined sticklebacks. The number of eggs in egg strings, hatching success of eggs and the survival of all larval stages to the copepodid stage were severely affected by the species of fish on which female L. salmonis had settled. L. salmonis settled on cod produced significantly fewer eggs, lower hatching rates and lower survival rates of larvae than females on Atlantic salmon. The production of egg strings by L. salmonis females infecting cod, which successfully hatch and moult through to the infective copepodid stage, albeit in small numbers, is discussed in terms of the implications to aquaculture and salmon and cod farming scenarios.
Url:
DOI: 10.1111/j.1365-2109.2011.02891.x
Affiliations:
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