Results 131 to 140 of about 203,710 (191)

Parasitic castration, growth, and sex steroids in the freshwater bonefish Cyphocharax gilbert (Curimatidae) infested by Riggia paranensis (Cymothoidea)

Neotropical Ichthyology
Cyphocharax gilbert shows parasitic castration when infested by the crustacean Riggia paranensis, being unable to reproduce. Fish were sampled in the middle rio Itabapoana, Brazil, to study the prevalence of parasitism, growth, and sex steroid ...
Neuza R. W. Lima, Juliana de S. Azevedo, Leonardo G. da Silva, Marilvia Dansa-Petretski   +3 more
doaj   +1 more source

Renal Trichodinosis in the Japanese Rice Fish, Oryzias latipes: First Report and Phylogenetic Classification

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Investigation of a disease outbreak in a hobbyist's medaka (Oryzias latipes) collection led to the detection of Trichodina sp. in the kidney tubuli of individual fish. Based on this observation, a thorough clinical workup, including native microscopy, histopathology and molecular genetics, was conducted.
J. Harl, K. Lipnik, S. Thalguter, E. Lewisch   +3 more
wiley   +1 more source

Tissue Distribution and Abundance of the Parasitic Dinoflagellate Hematodinium perezi in Naturally Infected Portunus trituberculatus

Pathogens
The parasitic dinoflagellate Hematodinium is an infectious pathogen that causes severe enzootic in numerous economically important marine crustaceans worldwide.
Ju Zhang, Meng Li, Qian Huang, Lijun Hu, Qi Xue, Jiayi Wang, Caiwen Li   +6 more
doaj   +1 more source

Vaccination Reduces Shedding of Salmonid Alphavirus Subtype 3, but Bacterial Co‐Infection Influences the Effect

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Waterborne horizontal transmission of viral diseases in fish relies on the release of infectious virus particles (termed shedding) into the aquatic environment. Both the rate and duration of shedding are critical for efficient viral spread, making interventions that reduce shedding valuable for disease control.
Søren Grove, H. Craig Morton, Dhamotharan Kannimuthu, HyeongJin Roh, Ravikumar M. Chovatia, Ma Michelle Peñaranda, Dawit Ghebretnsae, Kai Ove Skaftnesmo   +7 more
wiley   +1 more source

Toxocariasis fact sheet [PDF]

Toxocariasis is a parasitic disease in people caused by infection with a roundworm found in dogs or cats.CS223856-AWhat is toxocariasis? -- Who can get toxocariasis? -- How does someone get toxocariasis? -- What are the symptoms?

core  

Ocular Manifestations of Infectious Salmon Anaemia Virus Infection in Atlantic Salmon (Salmo salar)

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Eyes are essential sensory organs needed by teleost Atlantic salmon for high visual acuity and survival in both the wild and in aquaculture settings. In this work, we assessed the ocular manifestations of Infectious Salmon Anaemia Virus (ISAV) infection in Atlantic salmon by a cohabitation‐mediated infection assay and histological and ...
Emily Mahon, Rebecca R. Kwabiah, Hélène Paradis, Manuel A. Soto‐Dávila, Sathees Duglas, Raja Ram Gurung, Thurka Paramanathan, Ignacio Vasquez, Shams Al‐Badoosh, John Law, Javier Santander, Mark D. Fast, Robert L. Gendron   +12 more
wiley   +1 more source

Microbiome and Pathobiome Characterization in Farmed Barramundi (Lates calcarifer) During and Post Scale Drop Disease Outbreaks

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Large‐scale double‐digest RAD sequencing (ddRADseq) datasets generated for genotyping are increasingly available in aquaculture, yet their unmapped reads remain largely unexplored for pathogen surveillance. Here, we evaluated the utility and limitations of repurposing unmapped ddRADseq reads to examine pathogen‐associated and disease ...
Nguyen Thanh Vu, Xueyan Shen, Susan Gibson‐Kueh, Maura Carrai, Celestine Terence, Zhi Weng Josiah Poon, Sarah Priyanka Nelson, Saengchan Senapin, Ha Thanh Dong, Jiun‐Yan Loh, Dean R. Jerry, Jose A. Domingos   +11 more
wiley   +1 more source

Symbionts of Red King Crab from the Sea of Okhotsk: A Review of Russian Studies

Biology
The red king crab, Paralithodes camtscaticus, is a commercially significant crustacean that supports lucrative fisheries in Russia, the USA, and Norway.
Alexander G. Dvoretsky, Vladimir G. Dvoretsky   +1 more
doaj   +1 more source

Innovative Field Applications of Probiotics, Prebiotics, and Medicinal Plant Products for Disease Control in Aquaculture

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Disease outbreaks and the associated reliance on antibiotics pose major constraints to the sustainability of modern aquaculture. As regulatory pressures increase and consumer demand shifts toward residue‐free production, diverse biological interventions are gaining prominence as viable alternatives to chemotherapeutics.
Mustafa Öz, Enes Üstüner, Sümmani Çifci, Suat Dikel, Emin İleri, Furkan Budak   +5 more
wiley   +1 more source

Symbiont‐Derived Key Innovations Across the Diversity and Diets of Herbivorous Insects

Molecular Ecology, Volume 35, Issue 21, November 2026.
ABSTRACT With prodigious biomass and diversity, herbivorous insects are among the world's most successful animals. It is widely believed, however, that some plant‐based diets do not meet the needs of insect metabolism. Microbial symbionts may balance such deficits through diverse biochemistry.
Jacob A. Russell, Hannah M. Smith, Benoit Bechade, Christian Cabuslay, Melissa Carpenter, Daniel Freeman, Allison Hansen, Clesson Higashi, Yi Hu, Linyao Peng, Abigail Williams, Patrick Abbot   +11 more
wiley   +1 more source