Results 31 to 40 of about 220,082 (250)

Stable isotope analysis of ectoparasites as a tool for understanding trophic interactions with mammalian hosts. [PDF]

Med Vet Entomol
Ectoparasites showed significant δ15N enrichment compared to their hosts, indicating trophic enrichment, but δ13C preservation varied. Lice, fleas and ticks preserve their hosts' isotopic fingerprints to varying degrees, with lice reflecting host dietary patterns most closely, likely due to their exclusive, host‐specific feeding behaviour. The presence
Mortier GG, Black S, Kitchener AC, Hantke G, Stevens LA, Grayston-Smith LJ, Baker PJ, Perotti MA.   +7 more
europepmc   +2 more sources

Caligus rogercresseyi acetylcholinesterase types and variants: a potential marker for organophosphate resistance

Parasites & Vectors, 2018
Background Control of the sea louse Caligus rogercresseyi in the Chilean salmonid industry is reliant on chemical treatments. Azamethiphos was introduced in 2013, although other organophosphates were previously used.
Celia Agusti-Ridaura, Michael Dondrup, Tor E. Horsberg, Jong S. Leong, Ben F. Koop, Sandra Bravo, Julio Mendoza, Kiranpreet Kaur   +7 more
doaj   +1 more source

Epidemiological and therapeutic studies on sheep lice in Sayint district, South Wollo Zone, Northeast Ethiopia

Frontiers in Veterinary Science, 2022
An epidemiological (cross-sectional) and therapeutic (randomized controlled field trial) study was conducted on sheep lice in Sayint district, South Wollo, Northeast Ethiopia.
Simegn Legesse, Mussie Hailemelekot, Habtamu Tamrat, Yeshwas F. Alemu   +3 more
doaj   +1 more source

Ectoparasitic Arthropods Collected From Some Northern Ohio Mammals [PDF]

, 2017
Ectoparasitic arthropods were collected from some fur-bearing mammals in northern Ohio. Specimens representing seven mammalian species were examined and found to collectively harbor acarines, fleas, and biting lice.
Johnston, Scott A, Rockett, C. Lee
core   +3 more sources

Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice

Frontiers in Marine Science, 2020
Phenylalanine hydroxylase (PAH) is a crucial enzyme involved in tyrosine biosynthesis, having roles in neurological and physiological processes. The purpose of PAH has received little attention in crustaceans despite extensive investigations in other ...
Prashanna Guragain, Prashanna Guragain, Bjørnar Sporsheim, Astrid Skjesol, Anna Solvang Båtnes, Yngvar Olsen, Atle M. Bones, Atle M. Bones, Per Winge, Per Winge   +9 more
doaj   +1 more source

PROSPECTIVE EVALUATION OF MEDIUM-TERM OUTCOMES OF PATIENTS UNDERGOING HYSTEROSCOPIC UTERINE SEPTUM RESECTION

International Journal of Health Services Research and Policy, 2021
Objectives: To retrospectively and prospectively investigate the pregnancy outcomes after hysteroscopy (H/S) for septum resection in patients detected to have a uterine septum after presenting with a history of recurrent pregnancy loss (RPL), diagnosis ...
Gülten Çirkin Tekeş
doaj   +1 more source

Salmon louse labial gland enzymes: implications for host settlement and immune modulation

Frontiers in Genetics
Salmon louse (Lepeophtheirus salmonis) is a skin- and blood-feeding ectoparasite, infesting salmonids. While feeding, labial gland proteins from the salmon louse may be deposited on the Atlantic salmon (Salmo salar) skin.
Helena Marie Doherty Midtbø, Christiane Eichner, Lars Are Hamre, Michael Dondrup, Linn Flesland, Kristoffer Helland Tysseland, Heidi Kongshaug, Andreas Borchel, Renate Hvidsten Skoge, Frank Nilsen, Aina-Cathrine Øvergård   +10 more
doaj   +1 more source

Sea lice prevention strategies affect cleaner fish delousing efficacy in commercial Atlantic salmon sea cages

Aquaculture Environment Interactions, 2020
Over the last 2 decades, cleaner fishes have been employed to remove external sea lice parasites from Atlantic salmon Salmo salar in sea cages. Norway, Scotland, Ireland, and the Faroe Islands combined now use ~60 million cleaner fish per year.
Gentry, K, Bui, S, Oppedal, F, Dempster, T   +3 more
doaj   +1 more source

Using human head lice to unravel neglect and cause of death [PDF]

, 2018
Despite the common association of human lice with abandoned or neglected people, no procedure to assess pediculosis, aimed to detect signs of neglect, exists.
Beagley, Boutellis, Burnett, Buxton, Connor, Ferris, Hammer, Hilal-Dantan, M. Alejandra Perotti, Maunder, O'Connor, Simonetta Lambiase   +11 more
core   +1 more source

Dissipative eigenvalue problems for a Sturm-Liouville operator with a singular potential [PDF]

, 2000
We present a study of optical signatures of salmon lice and the ability to distinguish them from a reference zooplankton species.
Brydegaard, Mikkel, Kiørboe, Thomas, Nielsen, Josefine Holm, Pedersen, Christian, Prangsma, Jord C., Rodrigo, Peter John   +5 more
core   +1 more source