« Previous AbstractRespiratory symptoms and peak expiratory flow in children with asthma in relation to volatile organic compounds in exhaled breath and ambient air    Next Abstract"Relationship of personal exposure to volatile organic compounds to home, work and fixed site outdoor concentrations" »

J Fish Dis

Title:		"Study of the hooking behaviour of Lepeophtheirus salmonis (Kroyer, 1837) copepodids on Atlantic salmon, Salmo salar L., using a novel in vivo test system"
Author(s):		Delfosse C; Lafont-Lecuelle C; Barthelemy H; Chabaud C; Teruel E; Bienboire-Frosini C; Pageat P;
Address:		"Research Institute in Semiochemistry and Applied Ethology (IRSEA) Route du Chene, Quartier Salignan, Apt, France. Research Institute in Semiochemistry and Applied Ethology - Aquaculture Research Centre (IRSEA-ARC), Vikebukt, Norway"
Journal Title:		J Fish Dis
Year:		2018
Volume:		20171117
Issue:		6
Page Number:		969 - 972
DOI:		10.1111/jfd.12747
ISSN/ISBN:		1365-2761 (Electronic) 0140-7775 (Linking)
Abstract:		"The screening of putative semiochemicals involved in the interaction between Lepeophtheirus salmonis copepodid and the Atlantic salmon could be used to develop methods to prevent infestation. A bioassay was designed to evaluate the attractiveness of Atlantic salmon for L. salmonis copepodids by counting the number of hooked parasites. A salmon was bathed in a tank with 60 copepodids during 45 min. The salmon was humanely killed and its body was scrubbed above a plastic bag. The content of the bag was filtered to count the number of hooked parasites. This procedure was tested at different water temperatures and for different body mass. The temperature significantly influenced the number of hooked copepodids (p < .05). Smolts presented significantly more hooked copepodids at a higher water temperature (24.6 at 13.8 degrees C) compared to smolts at a lower temperature (18.6 at 6.1 degrees C; p = .011). No correlation was found between the body mass and the number of hooked parasites (p = .65). This bioassay was used to successfully measure the attractiveness of Atlantic salmon for L. salmonis copepodids, making it an interesting tool to screen putative semiochemicals designed to prevent the infestation"
Keywords:		Animals Aquaculture/*methods *Chemotaxis Copepoda/*physiology Ectoparasitic Infestations/parasitology/*veterinary Fish Diseases/*parasitology Host-Parasite Interactions *Salmo salar Lepeophtheirus salmonis Atlantic salmon attractiveness copepodid hooking;
Notes:		"MedlineDelfosse, C Lafont-Lecuelle, C Barthelemy, H Chabaud, C Teruel, E Bienboire-Frosini, C Pageat, P eng England 2017/11/18 J Fish Dis. 2018 Jun; 41(6):969-972. doi: 10.1111/jfd.12747. Epub 2017 Nov 17"