Results 71 to 80 of about 2,583 (213)

Effects of water quality on fish parasite biodiversity and physiological responses in the host fish Clarias gariepinus from a eutrophic lake subjected to acid mine drainage in South Africa

Integrated Environmental Assessment and Management, Volume 20, Issue 5, Page 1539-1553, September 2024.
Abstract Elevated concentrations of contaminants have negative impacts on aquatic organisms and their parasites. Changes in parasite infections have been proposed as a technique for monitoring the health of aquatic ecosystems. Furthermore, alterations in physiological responses (biomarkers) of organisms have also been used to delineate ecosystem ...
Lutfiyya Latief, Beric M. Gilbert, Annemariè Avenant‐Oldewage   +2 more
wiley   +1 more source

Parasites of non-native gobies in the Włocławek Reservoir on the lower Vistula River, first comprehensive study in Poland

Knowledge and Management of Aquatic Ecosystems, 2014
A parasitological study of Ponto-Caspian gobies, including the monkey goby Neogobius fluviatilis, racer goby Babka gymnotrachelus and tubenose goby Proterorhinus semilunaris, carried out over four years in the lower ...
Mierzejewska K., Kvach Y., Stańczak K., Grabowska J., Woźniak M., Dziekońska-Rynko J., Ovcharenko M.   +6 more
doaj   +1 more source

Eye fluke-induced cataracts in natural fish populations: is there potential for host manipulation? [PDF]

, 2017
Manipulation of host phenotype (e.g. behaviour, appearance) is suggested to be a common strategy to enhance transmission in trophically transmitted parasites.
KARVONEN, A., SEPPÄLÄ, O., VALTONEN, E. T.   +2 more
core  

Histidine nutrition and genotype affect cataract development in Atlantic salmon, Salmo salar L. [PDF]

, 2005
The aim of this study was to investigate effects of dietary levels of histidine (His) and iron (Fe) on cataract development in two strains of Atlantic salmon monitored through parr-smolt transformation.
Bjerkas, E, Breck, O, Campbell, P, Rhodes, J D, Sanderson, J, Waagbo, R   +5 more
core   +1 more source

High levels of metacercarial infestation (family: Diplostomidae) do not affect host energetics and swimming performance in the Epaulette goby (Coryogalops sordidus, Gobiidae)

Journal of Fish Biology, Volume 104, Issue 4, Page 1165-1179, April 2024.
Abstract Parasites have deleterious effects on their hosts, often resulting in altered host behavior or increased energy expenditure. When organisms are exposed to suboptimal environments, parasite loading may increase. Microbialite pools along the warm temperate South African coastline have been hypothesized as refugia for Epaulette gobies ...
Hendrik D. du Toit, Gavin M. Rishworth, Nadine A. Strydom, Shaun Welman   +3 more
wiley   +1 more source

Metacercárias de Diplostomum (Austrodiplostomum) compactum Lutz, 1928 (Digenea, Diplostomidae) em peixes do rio Paraná, Brasil. Prevalência, sazonalidade e intensidade de infecção

Acta Scientiarum: Biological Sciences, 2008
Avaliou-se a ocorrência de Diplostomum (Austrodiplostomum) compactum (Digenea: Diplostomidae) no globo ocular de Plagioscion squamosissimus (corvina) e Cichla ocellaris (tucunaré), capturados mensalmente, no rio Paraná, Presidente Epitácio, Estado de São
Rosemeire de Souza Santos, Franco Dani Akira Pimenta, Maurício Laterça Martins, Haroldo Kazuyuki Takahashi, Nilton Garcia Marengoni   +4 more
doaj   +1 more source

Environmental correlates of adaptive diversification in postglacial freshwater fishes

Journal of Fish Biology, Volume 104, Issue 3, Page 517-535, March 2024.
Abstract Determining how environmental conditions contribute to divergence among populations and drive speciation is fundamental to resolving mechanisms and understanding outcomes in evolutionary biology. Postglacial freshwater fish species in the Northern Hemisphere are ideal biological systems to explore the effects of environment on diversification ...
Isabelle C. Tiddy, Kevin Schneider, Kathryn R. Elmer   +2 more
wiley   +1 more source

Fitness effects of assisted gene flow in an endangered salmonid population

Conservation Science and Practice, Volume 6, Issue 1, January 2024.
This study investigates the impact of assisted gene flow on the fitness of an endangered landlocked salmon population. Our results reveal that while assisted gene flow can have a positive influence on individual growth, it can also lead to decreased survival rates under predation risk.
Ines Klemme, Joonas Pysäys, Pekka Hyvärinen, Anssi Karvonen   +3 more
wiley   +1 more source

Freshwater fish as hosts for parasites in Australia: How much do we really know?

Ecology of Freshwater Fish, Volume 33, Issue 1, January 2024.
Abstract Australia has a highly endemic freshwater fish fauna, but basic biological knowledge for most is lacking. This includes an understanding, and description, of their parasite fauna. Additionally, the impacts of introduced fish species, and their parasites which have transferred across to native species, are also mostly unknown.
Diane P. Barton, Shokoofeh Shamsi
wiley   +1 more source

Study on the prevalence and intensity of three parasites in Sturgeon fingerlings cultured in earthen ponds

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007
In 2001, we studied 2600 sturgeon fingerlings including: 2242 Acipenser persicus, 150 Acipenser stellatus, 150 Acipenser nudiventris and 58 Huso huso from Shahid Beheshti and Yousefpour hatcheries for parasitic infection.
A. Shenavar masoleh1; M. Masoumian2; M. Sattari3; S. Bazari moghadam; J. Jalilpor; Sh. Shafiei; N. Noshi masoleh; M. Noshali; M. Masomzadeh
doaj