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Lepeophtheirus salmonis, parasitizing three species of pacific salmon (Oncorhynchus spp.) : host variations in load, morphology, fecundity, and genetics of the salmon louse

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Title	Lepeophtheirus salmonis, parasitizing three species of pacific salmon (Oncorhynchus spp.) : host variations in load, morphology, fecundity, and genetics of the salmon louse
Subject	Lepeophtheirus salmonis--Juan de Fuca, Strait of (B.C. and Wash.); Lepeophtheirus salmonis--Washington (State)--Neah Bay (Bay); Pacific salmon--Juan de Fuca, Strait of (B.C. and Wash.); Pacific salmon--Washington (State)--Neah Bay (Bay)
Creator	Flanagan, Stephen
Publisher	Published by: Eastern Washington University Libraries. 816 F St. Cheney, WA 99004-2453. http://www.ewu.edu/library.xml
Date	2012
Type	text
Format	application/pdf
Source	Original format: MS Word.docx
Language	eng
Rights	The author retains all ownership rights to the copyright to this Master's Thesis. Copying of this document in whole or in part is allowable only for scholarly purposes, and with proper attribution given to the author. The content of this thesis shall not be used for commercial purposes, or for financial gain, without the permission of the author.
Provenance	Received from the EWU Graduate Studies Office.
Description-Table Of Contents	Examination of life history traits of wild Lepeophtheirus salmonis populations on salmonids (Oncorhynchus spp.) of the North Pacific, USA -- Examination of population genetics of wild Lepeophtheirus salmonis populations on salmonids (Oncorhynchus spp.) of the North Pacific, USA.
Description-Abstract	"The purpose of this study is to determine biological parameters of salmon lice (Lepeophtheirus salmonis) as they parasitize different species of Pacific Ocean salmonids off the north Pacific coast of Washington State. Parasite load counts of L. salmonis were made and individuals were collected from salmonids in their natural environment. Louse morphology and fecundity were examined using microscopy. Parasite loads were equal between different species of salmonids (p = 0.231). Lice that infected chinook salmon (n= 48) were smaller in total body length (p < 0.001), cephalothorax length (p < 0.001), and cephalothorax width (p < 0.001) when compared to lice that infected coho salmon (n = 44) or pink salmon (n=45). Lice that infected coho and pink salmon were not statistically different in body length (p = 0.213), cephalothorax length (p = 0.996), or cephalothorax width (p = 0.149). Also, L. salmonis produced fewer eggs when infecting chinook salmon (n = 24) than when infecting coho salmon (p < 0.001) or pink salmon (p < 0.001). Whereas, lice that infected coho salmon (n = 41) or pink salmon (n = 22) produced similar number of eggs (p = 0.60). These results indicate that there are factors associated with infecting chinook salmon hosts that reduce the size and fecundity of salmon lice."--Document.
Date-Created	2012
Format-Extent	1,246,208 bytes
Relation-Requires	Adobe Acrobat Reader
Relation-Is Part Of	EWU Theses Collection
Relation-Is Format Of	PDF of MS Word.docx. [2] pages before title page were not part of the original document; they were added when converted to PDF. Original signatures on page ii were redacted.
Rights-Access Rights	This thesis is embargoed for 1 year. To access the electronic copy, you must have a valid EWU Network ID and Password.
Rights-Rights Holder	Flanagan, Stephen

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Lepeophtheirus salmonis, parasitizing three species of pacific salmon (Oncorhynchus spp.) : host variations in load, morphology, fecundity, and genetics of the salmon louse

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