Results 71 to 80 of about 7,241 (229)

A review of the biology and genetics of sea lice [PDF]

open access: yesICES Journal of Marine Science, 2006
Abstract Studies of the biology of sea lice have been conducted from various perspectives for two decades. For Lepeophtheirus spp., most of the published literature has centred on the economically important Lepeophtheirus salmonis, while for Caligus spp., research has focused on a wider range of species.
openaire   +1 more source

Sea trout adapt their migratory behaviour in response to high salmon lice concentrations [PDF]

open access: yes, 2017
Sea trout face growth–mortality trade-offs when entering the sea to feed. Salmon lice epizootics resulting from aquaculture have shifted these trade-offs, as salmon lice might both increase mortality and reduce growth of sea trout.
Asplin, Lars   +23 more
core   +1 more source

Effects of Vector Density on Blood Parasite Spread and Health Consequences for Avian Hosts: An Experimental Epidemiology Blueprint

open access: yesIntegrative Zoology, EarlyView.
In an experimental epidemiology setup, groups of pigeons were exposed to different numbers of infective malaria vectors. Vector number explained the speed of transmission, the final prevalence, and changes in host behavior. ABSTRACT Vector density plays a critical role in the transmission dynamics of vector‐borne diseases and thus in their health and ...
Nayden Chakarov   +3 more
wiley   +1 more source

Urbanization and Vector Species Shape Avian Malaria Prevalence in Mosquitoes

open access: yesIntegrative Zoology, EarlyView.
Avian malaria prevalence was assessed in two mosquito species across urban and peri‐urban habitats. No infections were detected in either species in urban areas, while a 2.53% prevalence was found in the native Culex pipiens from peri‐urban sites, highlighting the influence of urbanization on parasite transmission dynamics.
Paula Parra   +5 more
wiley   +1 more source

Lice pressure from salmon farms on wild sea trout (Salmo trutta) in a Norwegian fjord

open access: yesFrontiers in Marine Science, 2015
Salmon lice Lepeophtheirus salmonis are external parasites on salmonids in the marine environment. However, during recent years, salmon lice abundance has increased due to the presence of salmon farming.
Pablo Arechavala-Lopez   +2 more
doaj   +1 more source

A Fly in the Ointment? Non‐Target Fly Pest Benefits From Reduction in Ivermectin During Targeted Selective Treatment

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Targeted Selective Treatment (TST) can reduce the rate of resistance development in livestock gastrointestinal nematodes but can also reduce the effects of anthelmintics on non‐target organisms. Most studies of non‐target anthelmintic effects focus on beneficial species.
Megan J. Lewis   +3 more
wiley   +1 more source

Navigating Inter‐Municipal Collaboration Challenges: 'In‐Tensions' in Shared Service Center and Joint Venture Arrangements

open access: yesFinancial Accountability &Management, EarlyView.
ABSTRACT Municipal collaborations such as shared service centers and joint ventures are widely promoted as ways to strengthen local service capacity. Yet they often develop in uneven and sometimes unstable ways. This paper examines why arrangements built on similar institutional promises take such different trajectories in practice.
Isabell Meltzer   +1 more
wiley   +1 more source

Aquaculture and environmental drivers of salmon lice infestation and body condition in sea trout

open access: yesAquaculture Environment Interactions, 2016
Infestation of sea trout Salmo trutta L. by salmon lice Lepeophtheirus salmonis is associated with increased mortality risk and possible sub-lethal effects.
S Shephard, C MacIntyre, P Gargan
doaj   +1 more source

Production, mortality, and infectivity of planktonic larval sea lice, Lepeophtheirus salmonis (Krøyer, 1837): current knowledge and implications for epidemiological modelling [PDF]

open access: yes, 2018
Current sea louse models attempt to estimate louse burdens on wild and cultured salmon by predicting the production and distribution of lice larvae and estimating the risk of transmission. While physical characteristics of water bodies and weather can be
A J Brooker   +5 more
core   +1 more source

History of sexually transmitted infections among mpox cases in the 2022 outbreak in Spain

open access: yesHIV Medicine, EarlyView.
Abstract Objective The aim was to describe the history of sexually transmitted infections (STIs) among adult mpox men cases and to analyse sociodemographic and epidemiological characteristics according to the presence or absence of any STI diagnosed 1 or 6 months previous to mpox diagnosis during the 2022 outbreak in Spain.
Aina March‐Yagüe   +35 more
wiley   +1 more source

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