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    Parasitic diseases

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    Date
    2004
    Author
    Cruz-Lacierda, Erlinda R.
    Erazo-Pagador, Gregoria E.
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    Abstract
    A wide variety of parasitic organisms have been reported as causing significant problems in grouper aquaculture. In the hatchery and nursery stages, parasitic diseases of groupers are caused predominantly by protozoans, particularly the ciliates. When grouper fry are transferred to grow-out facilities, they are subjected to handling and transport stress. These fish often carry a large variety and high intensity of ciliated protozoans, skin and gill monogeneans and caligid copepods.

    This chapter deals with the major parasites of cultured groupers including infections caused by protozoans, monogeneans, didymozoid digeneans, nematodes, caligid copepods, isopods and leeches.
    URI
    http://hdl.handle.net/10862/1706
    Citation
    Cruz-Lacierda, E. R., & Erazo-Pagador, G. E. (2004). Parasitic diseases. In K. Nagasawa & E. R. Cruz-Lacierda (Eds.), Diseases of cultured groupers (pp. 33-57). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center. http://hdl.handle.net/10862/1706
    Publisher
    Aquaculture Department, Southeast Asian Fisheries Development Center
    Subject
    Parasites; Protozoan diseases; Infectious diseases; Fish diseases; Husbandry diseases; Parasitic diseases; Cilia; Fish culture; Groupers; Epinephelus
    Type
    Book chapter
    ISBN
    9718511709
    Collections
    • Diseases of Cultured Groupers [7]

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      A textbook on diseases of cultured warmwater fish and shrimps in the Philippines. Eleven chapters cover essential information on the basic principles of disease causation, major diseases of cultured fish and crustaceans, particularly shrimps, and methods of prevention and control. Emphasis is made on major diseases that occur in the Philippines and other countries in the Asian region. Included also are topics on harmful algae, immunology and molecular biological diagnostic techniques.
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      Health management in aquaculture 

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      Conference paper

      Parasitic crustaceans in fishes from some Philippine Lakes 

      NC Lopez - In Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture: Proceedings … Seminar-Workshop held on October 21-23, 1997, INNOTECH, Commonwealth Ave., Diliman, Quezon City, Philippines, 2001 - Aquaculture Department, Southeast Asian Fisheries Development Center; Philippine Council for Aquatic and Marine Research and Development (PCAMRD), Department of Science and Technology; Bureau of Fisheries and Aquatic Resources
      Parasitic crustaceans are among the most harmful parasites of fishes. Certain species cause disease outbreaks and mortalities in aquaculture, facilities, and sometimes in natural systems, resulting in serious economic losses. Edible fishes from some Philippine lakes also show infestation by parasitic crustaceans. The branchiuran, Argulus indicus Weber, and the copepod, Lernaea cyprinacea Linnaeus, were recovered from the skin and base of the dorsal fin, respectively, of the mudfish Channa striata from Laguna de Bay. L. cyprinacea was also found on the white goby Glossogobius giurus in Naujan Lake. In La Mesa Reservoir, the gills of wild populations of tilapias Oreochromis niloticus and Tilapia zillii, white goby, and silvery theraponid Therapon plumbeus were infected with the copepod, Ergasilus philippinensis Velasquez. An isopod, Alitropus typus Edwards, was recovered from the buccal and gill cavities of several fishes from Lake Taal, namely; the mud gudgeon Ophiocara aporos, cardinal fish Apogon thermalis, silvery theraponid, and cage cultured Oreochromis niloticus. Previous reports and above finding indicate wide host specificity of the parasites. Of these four parasites, only Ergasilus philippinensis has not been reported to cause mass mortality in cultured fishes. Measures should be undertaken to prevent their introduction to other water bodies in which they do not yet occur.

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    Library & Data Banking Services Section | Training & Information Division
    Aquaculture Department | Southeast Asian Fisheries Development Center (SEAFDEC)
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