Results 31 to 40 of about 6,559 (224)

Snorkel technology to reduce sea lice infestations: efficacy depends on salinity at the farm site, but snorkels have minimal effects on salmon production and welfare

Aquaculture Environment Interactions, 2019
Sea lice are a critical health issue in most salmonid farming regions. New cage-based technologies can prevent infestations from occurring, such as the ‘snorkel’, which introduces an impermeable barrier that separates salmon lice Lepeophtheirus salmonis ...
Oppedal, F, Bui, S, Stien, LH, Overton, K, Dempster, T   +4 more
doaj   +1 more source

Reduced Infestation Levels of Lepeophtheirus salmonis in Atlantic Salmon (Salmo salar) following Immersion Exposure to Probiotic Aliivibrio spp.

Applied Microbiology, 2023
Salmon lice (Lepeophtheirus salmonis) constitute a major challenge during the production of farmed Atlantic salmon in Norway. Preventive measures are considered to have a higher impact on sustainable control than lice treatment.
Marius Steen Dobloug, Camilla Skagen-Sandvik, Øystein Evensen, Koestan Gadan, Marit Jørgensen Bakke, Henning Sørum, Kira Salonius   +6 more
doaj   +1 more source

Identifying salmon lice transmission characteristics between Faroese salmon farms

Aquaculture Environment Interactions, 2018
Sea lice infestations are an increasing challenge in the ever-growing salmon aquaculture sector and cause large economic losses. The high salmon production in a small area creates a perfect habitat for parasites.
Kragesteen, TJ, Simonsen, K, Visser, AW, Andersen, KH   +3 more
doaj   +1 more source

Economic Burden Associated with Head Louse (Pediculus humanus capitis) Infestation in Iran

Iranian Journal of Public Health, 2020
Background: The head louse infestation is a public health issue in the world especially, affecting most people who live in camps, school-aged children and their families. Head lice treatment has economic ramifications that often under calculated. The aim
Mojtaba SALIMI, Abedin SAGHAFIPOUR, Hadi HAMIDI PARSA, Majid KHOSRAVI   +3 more
doaj   +1 more source

Of lice and math: using models to understand and control populations of head lice. [PDF]

PLoS ONE, 2011
In this paper we use detailed data about the biology of the head louse (pediculus humanus capitis) to build a model of the evolution of head lice colonies.
María Fabiana Laguna, Sebastián Risau-Gusman   +1 more
doaj   +1 more source

Co‐phylogeny and biogeography of the myrmecophilous beetle Paussus favieri (Carabidae, Paussinae) and its host ant Pheidole pallidula (Hymenoptera, Myrmicinae)

Insect Science, EarlyView.
Strict patterns of co‐divergence have rarely been documented other than among organisms and their symbionts. In this paper, using a molecular approach, we inferr the population‐level phylogenies of a Mediterranean ant species Pheidole pallidula and its nest parasite, the obligate myrmecophilous beetle Paussus favieri. We then investigate the role of co‐
Davide Bergamaschi, Wendy Moore, Andrea Di Giulio   +2 more
wiley   +1 more source

Bath Treatments With Emamectin Benzoate Control Dactylogyrideans Infecting Colossoma macropomum Gills Without Altering Physiology of This Host Fish

Journal of Fish Diseases, EarlyView.
ABSTRACT Intensification of fish aquaculture worldwide has led to severe problems of diseases caused by parasitic dactylogyrideans. In this study, the anti‐dactylogyridean efficacy of treating Colossoma macropomum with baths of emamectin benzoate (EMB) was investigated for the first time, along with the effects of this treatment on the haematology and ...
Raimundo Rosemiro de Jesus Baia, Marcela Nunes Videira, Amanda Mendes Pacheco, Eliane Tie Oba Yoshioka, Marcos Tavares‐Dias   +4 more
wiley   +1 more source

Lousicidal efficacy of camphor oil, d-phenothrin, and deltamethrin against the slender pigeon louse, Columbicola columbae

International Journal of Veterinary Science and Medicine, 2014
The slender pigeon louse, Columbicola columbae, is an annoying ectoparasite of pigeons. The aims of present work were to study the prevalence of lice infestations among pigeons in Gharbia governorate, Egypt, and to compare the lousicidal efficacy of ...
Hanem F. Khater, Mohamed M. El-Shorbagy, Shaker A. Seddiek   +2 more
doaj   +1 more source

Epidemiology of Salmonid Rickettsial Septicemia (SRS) in Farmed Salmon: The Role of Sea Lice Infestations in Mortality Risk

Journal of Fish Diseases, EarlyView.
ABSTRACT Piscirickettsia salmonis , the causal agent of salmonid rickettsial septicemia (SRS), is the main pathogen affecting farmed salmonids in Chile. Outbreaks of SRS lead to substantial economic losses for producers. Many determinants related to SRS outcomes are still poorly understood.
Benjamín Diethelm‐Varela, Nicolhole Atero, Francisca Córdova‐Bührle, Enrico L. Rezende, Stefan Gelcich, Osvaldo Sandoval, Carlos Navarro, Fernando O. Mardones   +7 more
wiley   +1 more source

Impact of variable physical conditions and future increased aquaculture production on lice infestation pressure and its sustainability in Norway

Aquaculture Environment Interactions, 2020
Salmon lice infestation is a challenge for wild post-smolt salmon during migration from their natal river to the sea in several regions of Norway.
MS Myksvoll, AD Sandvik, IA Johnsen, J Skarðhamar, J Albretsen   +4 more
doaj   +1 more source