Results 41 to 50 of about 7,600 (167)

Does bigger mean sicker? A systematic review and meta‐analysis of the intraspecific relationship between host body size and parasite infection across vertebrate taxa

Oikos, EarlyView.
Elucidating the determinants of parasite infection levels of individuals within a population is a basic but important step for understanding the roles of parasites in natural systems. Among intraspecific studies on vertebrate hosts and metazoan parasites, host body size (length/mass) is probably the most frequently reported factor determining parasite ...
Ryota Hasegawa, Daniela de Angeli Dutra, Bronwen Presswell, Jerusha Bennett, Cameron McDougall, Katherine E. Buschang, Xuhong Chai, Robert Poulin   +7 more
wiley   +1 more source

Selenium levels in Lesser Scaup ( Aythya affinis ) experimentally infected with introduced trematodes

Avian Conservation and Ecology
Lesser Scaup ( Aythya affinis ) have declined nearly 60% over the past five decades and remain below the continental population objective. Since the early 2000s, epizootic intestinal trematodiasis caused by introduced trematodes ( Cyathocotyle bushiensis
Cheyenne R Beach, Christopher N Jacques, Joseph D Lancaster, Rebecca A Cole, Heath M Hagy, Auriel M.V. Fournier   +5 more
doaj   +1 more source

Assessing the Health Impacts of Contaminants on Green Turtles (Chelonia mydas) Along the Southern Coast of Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro, Andressa Maria Rorato Nascimento de Matos, Eloiza Teles Caldart, Liana Rosa, Camila Domit, Guilherme dos Santos Lima, Ana Paula Frederico Rodrigues Loureiro Bracarense   +6 more
wiley   +1 more source

Trematode fauna of fish inhabiting reservoirs of the European part of Russia

Российский паразитологический журнал, 2023
The purpose of the research is an ecological and faunal analysis of trematodes in fish inhabiting reservoirs of the European part of Russia.Materials and methods.
N. N. Romanova, N. A. Golovina, A. A. Vishtorskaya, P. P. Golovin   +3 more
doaj   +1 more source

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

Journal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez, Miguel Mancini, Fabian Grosman, Gustavo Manuel Somoza, Carlos Augusto Strüssmann   +4 more
wiley   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

Journal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer, Peter Emerson, Matthew Bodnar, Thomas Jones, David R. Russell, Matthew Pehrson, Cheyenne R. Smith, Danielle Cleveland, Mark J. Henderson, Patricia M. Mazik   +9 more
wiley   +1 more source

Differentiating snail intermediate hosts of Schistosoma spp. using molecular approaches: fundamental to successful integrated control mechanism in Africa

Infectious Diseases of Poverty, 2018
Background Snail intermediate hosts play active roles in the transmission of snail-borne trematode infections in Africa. A good knowledge of snail-borne diseases epidemiology particularly snail intermediate host populations would provide the necessary ...
Eniola Michael Abe, Wei Guan, Yun-Hai Guo, Kokouvi Kassegne, Zhi-Qiang Qin, Jing Xu, Jun-Hu Chen, Uwem Friday Ekpo, Shi-Zhu Li, Xiao-Nong Zhou   +9 more
doaj   +1 more source

A GENERAL SURVEY OF THE HELMINTH PARASITES OF SOME FISHES FROM LAKE NASSER AT ASSWAN, A.R. EGYPT [PDF]

Assiut Veterinary Medical Journal, 1983
The helminth parasites, were surveyed from some fishes of lake Nasser at Assuan. Out of fish examined, (55.88%) were found infected with one or more species of parasites. How ever, mixed Infections were frequently met with.
M.K. EL-NAFFAR, M.F. SAOUD, I.M. HASSAN
doaj   +1 more source

Xenobiotic-Metabolizing Enzymes in Trematodes

Biomedicines, 2022
Trematode infections occur worldwide causing considerable deterioration of human health and placing a substantial financial burden on the livestock industry. The hundreds of millions of people afflicted with trematode infections rely entirely on only two
Viatcheslav Mordvinov, Maria Pakharukova
doaj   +1 more source

Challenging Host Specificity: Malacosporean Parasite Dynamics—Tetracapsuloides bryosalmonae Beyond Salmonids—An Infection Experiment

Journal of Fish Diseases, EarlyView.
ABSTRACT Proliferative Kidney Disease (PKD) is a severe parasitic disease of salmonids caused by the malacosporean endoparasite Tetracapsuloides bryosalmonae. In the fish intermediate host, the parasite is disseminated via the circulatory system and ultimately reaches the kidney, where it matures before releasing infective spores into the environment ...
Céline Möckli, Nicolas Diserens, Gary Delalay, Gastón Moré, Heike Schmidt‐Posthaus   +4 more
wiley   +1 more source