Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cataracts in cichlid fish

E J Noga, E D Wolf, P T Cardeilhac

    Journal of the American Veterinary Medical Association
    |December 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Aquarium-raised tilapia exhibited bilateral cataracts and skeletal abnormalities, suggesting a potential inherited condition affecting vision and physical development in Sarotherodon mossambicus.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Perch liver reaction to Triaenophorus nodulosus plerocercoids with an emphasis on piscidins 3, 4 and proliferative cell nuclear antigen (PCNA) expression.

    Veterinary parasitology·2013
    Same author

    Infiltration and activation of acidophilic granulocytes in skin lesions of gilthead seabream, Sparus aurata, naturally infected with lymphocystis disease virus.

    Developmental and comparative immunology·2011
    Same author

    Structure-activity relationships of piscidin 4, a piscine antimicrobial peptide.

    Biochemistry·2011
    Same author

    Evidence for synergism of the antimicrobial peptide piscidin 2 with antiparasitic and antioomycete drugs.

    Journal of fish diseases·2010
    Same author

    Antiparasitic activity of the antimicrobial peptide HbbetaP-1, a member of the beta-haemoglobin peptide family.

    Journal of fish diseases·2010
    Same author

    Histopathology of culture-associated skin erosions and papillary hyperplasia of Atlantic halibut, Hippoglossus hippoglossus (L.).

    Journal of fish diseases·2010
    Same journal

    Acute-onset neurologic signs in an indoor/outdoor domestic shorthair cat.

    Journal of the American Veterinary Medical Association·2026
    Same journal

    Progressive exophthalmos and strabismus in a 4-year-old Jersey steer.

    Journal of the American Veterinary Medical Association·2026
    Same journal

    Orchiectomy in horses: closed technique and primary closure of the incision.

    Journal of the American Veterinary Medical Association·2026
    Same journal

    Stranguria in a 3-month-old Holstein-Friesian heifer.

    Journal of the American Veterinary Medical Association·2026
    Same journal

    Caudal vena cava-to-aorta ratio in hemodynamically stable and unstable client-owned rabbits.

    Journal of the American Veterinary Medical Association·2026
    Same journal

    Dogs with intrahepatic portal hypertension of congenital cause have distinct diagnostic findings compared to dogs with chronic hepatitis-related portal hypertension.

    Journal of the American Veterinary Medical Association·2026
    See all related articles

    Area of Science:

    • Aquatic animal health
    • Ophthalmology
    • Genetics

    Background:

    • Tilapia (Sarotherodon mossambicus) are a common aquarium species.
    • Vision impairment can significantly impact aquatic animal welfare and behavior.
    • Cataracts are a common cause of vision loss in various species.

    Purpose of the Study:

    • To investigate the occurrence and characteristics of bilateral cataracts in aquarium-raised tilapia.
    • To identify associated physical abnormalities in affected fish.
    • To explore the potential hereditary nature of the condition.

    Main Methods:

    • Ophthalmic examination of affected tilapia.
    • Observation of swimming behavior and general function.
    • Histological analysis of lens tissue.

    Related Experiment Videos

  • Preliminary breeding experiments.

    • Main Results:

    • Bilateral cataracts were observed in tilapia, causing impaired vision and object avoidance.
    • Affected fish also displayed skeletal abnormalities, including fin deformities, jaw malformations, and spinal curvature.
    • Histological examination revealed progressive degeneration of the cataractous lens portions.
    • Initial breeding trials suggested a possible inherited basis for the condition.

    Conclusions:

    • Bilateral cataracts and associated skeletal abnormalities in Sarotherodon mossambicus may be an inherited condition.
    • This condition impacts vision and physical development in affected tilapia.
    • Further genetic studies are warranted to confirm the heritability and understand the underlying mechanisms.