AQUA ME: Fish Causative Agents

Columnaris Disease/ Cotton Mouth Disease

Flavobacterium columnare

Finrot/ Tailrot

Pseudomonas fluorescens

Hemorrhagic Septicemia/ Red-Spot Disease

• Aeromonas spp.

• Pseudomonas spp.

• Vibrio spp.

Goldfish Ulcer Disease/ Furunculosis in Salmonids

Aeromonas salmonicida

Vibriosis in Fish

Vibrio spp.: Vibrio alginolyticus

• V. anguillarum

• V. chachariae

• V. cholerae

• V. harveyi

• V. metschnikovi

• V. parahaemolyticus

• V. sinaloensis

• V. vulnificus

Hitra Disease/ Cold-Water Vibriosis

Vibrio salmonicida

Yersiniosis/ Enteric “Redmouth” Disease

Yersinia ruckeri

Edwardsiellosis

Edwardsiella ictaluri

Enteric Septicemia of Catfish/ Red Head Disease/ Hole in the Head Disease

Edwardsiella ictaluri

Emphasematous Putrifactive Disease of Catfish/ Fish Gangrene and Red Diseases

Edwardsiella tarda

Bacterial Kidney Disease in Fish/ “White Boil” Disease

Renibacterium salmoninarum

Streptococcal Infection/ “Red Boil Disease”

Streptococcus spp.:

• S. agalactiae

• S. iniae

Pseudomonas Infection in Tilapia

Pseudomonas fluorescens

Vibriosis in Grouper

Vibrio spp.:

• Vibrio parahaemolyticus

• V. alginolyticus

• V. vulnificus

• V. charchariae

Ulcerative Bacterial Infection in Catfish

Aeromonas hydrophila

Fluid Belly in Sturgeon

Veronaea botryosa

Fusariosis in Sphyrnidae Sharks

Fusarium solani complex

Ovarian Microsporidiosis

Ovipleistophora ovariae

Neon Tetra Disease

Pleistophora hyphessobryconis

Pseudoloma Infection in Zebrafish

Pseudoloma neurophilia

Glugea Disease

Aflatoxicosis in Fish

Aspergillus flavus

Epizootic Ulcerative Syndrome (EUS)/ Red Spot Disease, Mycotic granulomatosis and Ulcerative Mycosis

Aphanomyces invadans

Saprolegniasis / Cotton wool disease

Saprolegnia spp.

Branchiomycosis/ GILL ROT

• Branchiomycoses sanguinis

• B. demigrans

Ichthyophoniasis/ Ichthyosporidiosis

Ichthyophonus hoferi

Exophiala Infection

• Exophiala pisciphila

• E. salmonis

• E. angulospora

Carp Pox Viral Disease

Cyprinid herpesvirus -1 (CyHV-1)

Goldfish Herpes Viral Disease/ Goldfish Hematopoietic Necrosis

Cyprinid herpesvirus -2 (CyHV-2)

Koi Herpesvirus Disease (KHVD)

Cyprinid herpesvirus -3 (CyHV-3)

Angelfish Herpesviral Disease / Singapore Disease

Alloherpesviridae family / Paramyxovirus

VIRAL HEMORRHAGIC SEPTICEMIA IN FISH

Egtved virus /VHS virus

Spring viremia in carp

Sprivivirus cyprinus

Lymphocystis Disease

Lymphocystis virus (iridoviridae)

Megalocytivirus Disease

• Tilapia Iridovirus or Infectious Spleen and Kidney Necrosis virus (ISKNV) 

• red sea bream iridovirus (RSBI 

•  turbot reddish body iridovirus (TRBIV)

Largemouth Bass Viral Disease

LMB Virus (ranavirus family)

Infectious Salmon Anemia (ISA)

Infectious salmon anemia virus (ISAV) (Orthomyxoviridae family)

KOI SLEEPY DISEASE / CARP EDEMA VIRUS DISEASE

Carp Edema virus (Poxviridae family)

VIRAL NERVOUS NECROSIS IN FISH (VNN)/ VIRAL VACUOLATIONG ENCEPHALOPATHY AND RETINOPATHY (VER)/ WHIRLING DISEASE

Piscine nodavirus

Tilapia lake viral disease (TiLV)

Tilapia Lake Virus (TiLV)

Infectious pancreatic necrosis (IPN)

infectious pancreatic necrosis virus ( Aquavirnavirus family)

Ichthyophthiriasis or “ICH” Cryptocaryonosis and White Spot Disease

• Ichthyophthirius multifilis

• Cryptocaryon irritans

Trichodiniasis

• Trichodina (45-78 µm diameter), 

• Trichodinella (24-37 µm diameter), 

• Tripartiella

Chilodonelliosis / Brooklynelliosis

• Chillodonella spp (Freshwater) 

• Brooklynella spp. (Saltwater)

Tetrahymenosis / “Guppy-Killer Disease”

• Tetrahymena corlis

• Uronema,

• Miamiensis

OTHER CILIATES

• Ambiphrya, 

• Apiosoma

• Epistylis spp

Amyloodiniosis/ White Spot Disease/ Velvet Disease

• Amyloodinium spp.(Marine) 

• Piscinoodinium spp (Fresh-water)

Ichthyobodosis / “Blue-slime Disease”

Ichthyobodo spp.

Saprolegniasis / Saprolegnia infection

Saprolegnia spp

Branchiomyces infection / Gill rot

Branchiomyces spp

Epizootic Ulcerative Syndrome (EUS) / Red Spot ds

Aphanomyces invadans

Spironucleosis / Hexamithiasis

Spironucleus spp.

• Spironucleus vortens

• Spironucleus salmonicida 

• Spironucleus barkhanus 

• S. torosa

Trypanosomiasis

Trypanosoma spp.

Granulomatous disease

Cryptobia iubilans

Coccidiosis / Eimeria infection

Eimeria southwelli

GOUSSIA INFESTATION

Goussia spp.

MONOGENEANS

• Gyrodactylids

• Ancyrocephalids

• Dactylogyrids

• Neobenedenia

• Benedenia

Gyrodactylidiasis / Skin Flukes

Gyrodactylus spp.

Dactylogyridiasis/ Gill Flukes

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Neobenedeniasis / Benedeniasis/ Eye flukes

• Neobenedenia girellae 

• Neobenedenia melleni

Camallanus Infestation / Red-worm disease

Camallanus spp.

Capillaria Infestation

Capillaria spp.

Anisakiasis / Anisakis infestation

Anisakis simplex (Herring worm

Eustrogylides infestation

Eustrogylides family

ARGULUS INFESTATION / “FISH LOUSE”

Argulus sp.

Ergasilid Infestation / Gill lice infestation / Gill Maggot

Ergasilus

Lernaeid Infestation / “Anchor worm”

Lernaea spp.

ISOPOD INFESTATION

• Alitropus spp.

• Nerocila spp.