Results 21 to 30 of about 1,198 (194)

Diplostomum-Induced Sac Formation in Lenses of Ameiurus Bullheads: A Host Defence Response? [PDF]

J Fish Dis
ABSTRACT Trematodes of the genus Diplostomum (Diplostomidae) are widely distributed and significant fish pathogens known for causing a range of negative effects. Any mechanism that protects the host from the parasite thus represents an evolutionary advantage.
Ondračková M, Valigurová A, Hodová I, Bartáková V, Tkachenko MY, Janáč M, Vetešník L.   +6 more
europepmc   +2 more sources

Prevalence of Diplostomum spathaceum infectious in some endemic fishes of water resources in West Azerbaijan province [PDF]

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2013
Diplostomum spathaceum is a digenean parasite with an indirect life cycle. Its mature stage lives in gull's intestine, cercariae in snails (Lymnaeidae) liver and metacercariae stage in piscine, amphibian, and mammalian eyes.
S. Rasouli
doaj   +2 more sources

Hybridization and Immunology in Animals: A Review. [PDF]

Ecol Evol
Hybridization can reshape immune function by introducing novel genetic variation and combining parental immune traits. Across animal taxa, this process may influence resistance, tolerance, and pathogen dynamics, with important implications for disease ecology and One Health.
Graham CR, Thompson CW, Green DA, Speer KA.   +3 more
europepmc   +2 more sources

Unclear host taxonomy hinders parasite studies: An up-to-date checklist of the protozoan and metazoan parasites of Phoxinus minnows (Teleostei: Leuciscidae). [PDF]

J Fish Biol
Abstract Phoxinus minnows are small freshwater fish found throughout Eurasia. The taxonomy of this genus is still under investigation, and new species are regularly described. They are frequently introduced outside their native range due to their use as live bait for angling, and such fish introductions can have diverse impacts on the recipient areas ...
Esposito A, Denys GPJ, Foata J, Quilichini Y.   +3 more
europepmc   +2 more sources

The Effects of Hybridization and Parasite Infection on the Survival and Behaviour of Endangered Landlocked Salmon Subject to Predation-Implications for Genetic Rescue. [PDF]

Evol Appl
ABSTRACT A prerequisite of genetic rescue in endangered and genetically depauperate populations is to pre‐evaluate between possible pros and cons of hybridization for the life history and survival of the target population. We hybridized the critically endangered Saimaa landlocked salmon (Salmo salar m.
Eronen A, Janhunen M, Hyvärinen P, Kortet R, Karvonen A.   +4 more
europepmc   +2 more sources

Helminth parasites of twaite shad, Alosa fallax (Actinopterygii: Clupeiformes: Clupeidae), from the southern Baltic Sea [PDF]

Acta Ichthyologica et Piscatoria, 2009
Background. The twaite shad, Alosa fallax (Lacépède, 1803), is a migratory marine species which lives in North Atlantic and sporadically appears in the Baltic Sea.
J. Rokicki, L. Rolbiecki, A. Skóra
doaj   +3 more sources

Scientists' Warning on the Rapid Evolution of Parasites in the Anthropocene. [PDF]

Evol Appl
ABSTRACT Human activities are changing the natural world at an accelerating pace, and as a consequence exerting novel and often strong selection pressures on living organisms. For species with traits conferring huge inherent evolutionary potential, like parasites, the outcome may be rapid adaptive responses spanning multiple phenotypic traits. The rise
Poulin R, Bennett J, Blasco-Costa I, Dutra DA, Doherty JF, Dowle E, Filion A, Fredensborg BL, Hasegawa R, Herrmann KK, Keeney DB, Koehler AV, Koprivnikar J, Lagrue C, Lane HS, Leung TLF, Li CH, MacLeod CD, Mouritsen KN, Niebuhr CN, O'Dwyer K, Park E, Paterson RA, Presswell B, Randhawa HS, Ruehle B, Sabadel A, Salloum PM, Thieltges DW, Thomas F, Selbach C.   +30 more
europepmc   +2 more sources

Fauna of metazoan parasites of Pterygoplichthys pardalis (Castelnau, 1855) sold at fairs in the city of Manaus, state of Amazonas, Brazil

Acta Scientiarum: Biological Sciences, 2023
Pterygoplichthys pardalis is an endemic as well as economically important fish species in the Amazon basin. Thirty P. pardalis specimens were purchased at assorted fairs in the city of Manaus.
Makoto Enoki Caracciolo, Daniel Brito Porto, Maria Paula Mourão, José Celso de Oliveira Malta, Wanderley de Souza   +4 more
doaj   +1 more source

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

Aquaculture, 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, Jaydipbhai Suthar, Falko Baustian, Xaver Neitemeier‐Duventester, Sonja Kleinertz, Harry W. Palm   +5 more
doaj   +1 more source

The helminth fauna of brown trout (Salmo trutta) from a sub-alpine lake revisited after 40 years with introduced European minnow (Phoxinus phoxinus)

Fauna Norvegica, 2021
The helminth fauna of brown trout (Salmo trutta) in the Norwegian subalpine lake, Øvre Heimdalsvatn was studied by examination of gills, eyes, body cavity, kidney, stomach, pyloric region and intestine in a total of 112 brown trout randomly sampled in ...
Reidar Borgstrøm, Øyvind Hatleli Mestrand, John E. Brittain, Leif Lien   +3 more
doaj   +1 more source