Results 11 to 20 of about 482 (151)

The right response at the right time: Exploring helminth immune modulation in sticklebacks by experimental coinfection. [PDF]

open access: yesMol Ecol, 2019
Parasites are one of the strongest selective agents in nature. They select for hosts that evolve counter‐adaptive strategies to cope with infection. Helminth parasites are special because they can modulate their hosts’ immune responses.
Piecyk A, Ritter M, Kalbe M.
europepmc   +4 more sources

Seasonality of salmonid parasites from flow‐through aquaculture in northern Germany: Emphasis on pathogenicity of Diplostomum spp. metacercaria

open access: yesAquaculture, Fish and Fisheries, 2022
The aim of the present study was to identify the parasite fauna of cultured rainbow trout (Oncorhynchus mykiss Walbaum, 1792) and Arctic charr (Salvelinus alpinus (L.)) from a flow‐through aquaculture system at Lake Tollense in northern Germany. The fish
Patrick Unger   +5 more
doaj   +2 more sources

Opposing health effects of hybridization for conservation

open access: yesConservation Science and Practice, 2021
The continuing decline of many natural plant and animal populations emphasizes the importance of conservation strategies. Hybridization as a management tool has proven successful in introducing gene flow to small, inbred populations, but can be also ...
Ines Klemme   +7 more
doaj   +2 more sources

Specific gene expression responses to parasite genotypes reveal redundancy of innate immunity in vertebrates. [PDF]

open access: yesPLoS ONE, 2014
Vertebrate innate immunity is the first line of defense against an invading pathogen and has long been assumed to be largely unspecific with respect to parasite/pathogen species.
David Haase   +6 more
doaj   +4 more sources

Exploring the diversity of Diplostomum (Digenea: Diplostomidae) in fishes from the River Danube using mitochondrial DNA barcodes [PDF]

open access: yesParasites & Vectors, 2017
Background Metacercariae of Diplostomum are important fish pathogens, but reliable data on their diversity in natural fish populations are virtually lacking. This study was conducted to explore the species diversity and host-parasite association patterns
Olena Kudlai   +3 more
doaj   +2 more sources

Are sick individuals weak competitors? Competitive ability of snails parasitized by a gigantism-inducing trematode. [PDF]

open access: yesPLoS ONE, 2013
Parasitized individuals are often expected to be poor competitors because they are weakened by infections. Many trematode species, however, although extensively exploiting their mollusc hosts, also induce gigantism (increased host size) by diverting host
Otto Seppälä   +4 more
doaj   +5 more sources

Helminths of the black-headed gull (Chroicocephalus ridibundus) from breeding colonies in north-central Poland [PDF]

open access: yesScientific Reports
Among parasites of the digestive tract of the black-headed gull (Chroicocephalus ridibundus) in Poland, the best known are species of digenetic trematodes and cestodes. Nematodes of this bird species are not well known.
Agata N. Stapf   +4 more
doaj   +2 more sources

Occurrence of Diplostomum pseudospathaceum Niewiadomska, 1984 and D. mergi Dubois, 1932 (Digenea: Diplostomidae) in Danish freshwater snails:ecological and molecular data [PDF]

open access: yesFolia Parasitologica, 2013
Freshwater pulmonate snails from three locations in Lake Furesø north of Copenhagen were screened for infection with furcocercariae (by shedding in the laboratory) and recovered parasite larvae were diagnosed by molecular methods (by performing PCR of rDNA and sequencing the internal transcribed spacer [ITS] region).
Buchmann, Kurt   +4 more
core   +5 more sources

Fitness effects of assisted gene flow in an endangered salmonid population

open access: yesConservation Science and Practice
Assisted gene flow is increasingly used to combat severe population declines. However, the associated risks, such as outbreeding depression, are often insufficiently assessed.
Ines Klemme   +3 more
doaj   +2 more sources

MALDI-TOF mass spectrometry: a new tool for rapid identification of cercariae (Trematoda, Digenea) [PDF]

open access: yesParasite, 2019
Identification of cercariae was long based on morphological and morphometric features, but these approaches remain difficult to implement and require skills that have now become rare.
Huguenin Antoine   +3 more
doaj   +2 more sources

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