CIFA TECHNICAL PAPER 31 Parasites, infections and diseases of fishes in Africa
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The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. |
The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
M-42
ISBN 92-5-103772-8
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PREPARATION OF THIS DOCUMENT
This document has been prepared to update CIFA/T7, 1980 a publication by the same name and the same author. In the process the entire text has been rewritten and the line illustrations supplemented with photographic material. The text was rewritten not only to accommodate new accumulated data and novel experiences, but also to accord with conceptual changes in our understanding of fish pathogens, their effects on fishes and new approaches to therapy and control resulting from scientific developments since 1980.
The information contained in the original publication, as well as this updated report, is a synthesis of the author's personal experience plus published data from a wide variety of sources, including personal communication and internal reports. All sources are acknowledged in the text. A special effort was made to compile all published information from Africa on aspects of fish health and, where relevant, also data on fish pathogens in warm waters outside Africa.
In the previous document a chapter was devoted to the human-health (epidemiological) risks associated with ponds as habitats for vectors of human diseases (malaria, schistosomiasis and arbor viruses). It was decided to exclude this aspect from the present document as it has received great attention since then in current scientific literature, and to discuss the subject adequately would have extended this publication beyond its prescribed framework.
Distribution:
FAO Fisheries Department
FAO Regional Fishery Officers
CIFA Mailing List
FAO Aquaculture Projects
© FAO 1996
Paperna, l. Parasites, infections and diseases of fishes in Africa - An update CIFA Technical Paper. No.31. Rome, FAO. 1996. 220p. |
ABSTRACT |
This document complies and consolidates existing information on diseases and infections occurring in African fish. Data have been organised into a convenient format along with an update of available general information on fish diseases and their aetiological agents. Incorporated into the text are also relevant data and information on diseases found in species of African fish farmed outside Africa and general aspects of fish pathology relevant to warm water aquaculture. Information includes diagnostic aids (keys and illustrations) to assist in the recognition of disease agents, relevant data on their effects on fish, the way they are transmitted and where possible, suggestions for therapy and control. This document replaces a previous publication of the same name - CIFA/T7, 1980 by the same author. |
Glossary of fish names used in the text
3.1 Facultative pathogens and opportunists
3.1.2 Vibriosis in cultured tilapia
3.1.4 Aeromonas hydrophila and other ubiquitous facultative bacteria
3.1.5 Myxobacterial infections - gill and fin rot
3.1.6 Control of infections by facultative pathogenic bacteria
3.2 Piscine tuberculosis and other acid-fast bacterial infections
4.1 Saprolegnia and other phycomycete infections (Dermal mycoses)
4.4 Dermocystidium-like organisms
5. ECTOPARASITIC PROTOZOA (Flagellates and Ciliates)
6. INFECTIONS WITH DINOFLAGELLIDS AND ICHTHYOPHTHIRIASIS
7. PROTOZOANS OF THE GUT LUMEN
8.2 Cryptosporidium infections
9.2 Haemosporidia - Dactylosoma and hemogregarines
13.2 Metacercariae infecting fish
14.1 The Asian tape worm Bothriocephalus acheilognathii
14.2 Other tapeworm infections
14.3 Infections by larval tapeworms
16. THORNY-HEADED WORMS - ACANTHOCEPHALA
18.3 Other parasitic copepods reported from Africa
19. OTHER PARASITES OF MISCELLANEOUS TAXA
19.1 Parasitic mites (Acarina)
19.2 Pentastomid (Linguatulids or tongue worms) larvae
19.3 Larvae of bivalved molluscs
20. CLINICAL CONDITIONS WITH UNKNOWN AETIOLOGY AND NEOPLASIA
20.1 Naturally occurring cases
20.3 Neoplasia in aquarium held African fish
INDEX TO SCIENTIFIC NAMES USED IN THE TEXT
Photographic plates:
Plate 2. Lymphocystis and other iridovirus-like infections
Plate 4. Bacterial infections continued
Plate 7. Fungal infections continued
Plate 8. Ectoparasitic Protozoa
Plate 9. Ectoparasitic Protozoa continued
Plate 10. Ectoparasitic Protozoa: trichodinids
Plate 11. Ectoparasitic Protozoa: trichodinids continued
Plate 12. Dinoflagellids and Ichthyophthiriasis
Plate 13. Ichthyophthiriasis continued
Plate 14. Blood and gut Protozoa
Plate 15. Intestinal Coccidiosis
Plate 16. Extraintestinal Coccidiosis
Plate 19. Myxosporea continued and Microspora
Plate 20. Dactylogyrid Monogenea
Plate 21. Gyrodactylid Monogenea
Plate 24. Tape worms (Cestoda)
Plate 26. Nematoda continued; leeches
Plate 28. Parasitic crustacea continued
Plate 29. Parasitic crustacea continued
Plate 30. Deformations, degenerations and neoplasia
Plate 31. Neoplasia and other abnormalities
Line drawings:
Fig. 1. Ectoparasitic and intestinal Protozoa
Fig. 2. Haemosporida, Myxosporea and Microsporea
Fig. 9. Parasitic Copepoda continued and Branchiura