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Freshwater Aquarium Fish Diseases

Carola E Dehler, Christopher J Secombes, Samuel A M Martin
Gut microbes are key players in host immune system priming, protection and development, as well as providing nutrients to the host that would be otherwise unavailable. Due to this importance, studies investigating the link between host and microbe are being initiated in farmed fish. The establishment, maintenance and subsequent changes of the intestinal microbiota are central to define fish physiology and nutrition in the future. In fish, unlike mammals, acquiring intestinal microbes is believed to occur around the time of first feeding mainly from the water surrounding them and their microbial composition over time is shaped therefore by their habitat...
January 20, 2017: Aquaculture
Ting Hui Ng, Siong Kiat Tan, Wing Hing Wong, Rudolf Meier, Sow-Yan Chan, Heok Hui Tan, Darren C J Yeo
The ornamental pet trade is often considered a key culprit for conservation problems such as the introduction of invasive species (including infectious diseases) and overharvesting of rare species. Here, we present the first assessment of the biodiversity of freshwater molluscs in the ornamental pet trade in Singapore, one of the most important global hubs of the ornamental aquarium trade, and discuss associated conservation concerns. We recorded freshwater molluscs from ornamental pet shops and major exporters including non-ornamental species (e...
2016: PloS One
Milad Adel, Fatemeh Ghasempour, Hamid Reza Azizi, Mohamad Hadi Shateri, Ahmad Reza Safian
Parasitic diseases are harmful and limiting factors in breeding and rearing ornamental fish industry. In this study, 400 apparently healthy ornamental fishes from five species (each species 80 specimens) including: Goldfish (Carassius auratus), guppy (Poecilia reticulate), angelfish (Pterophyllum scalare), discus (Symphsodon discus) and sailfin mollies (Poecilia latipinna) was obtained from a local ornamental fish farm in the north of Iran during 2011 to 2012. The primary purpose of this study was to determine the parasitic infections of aquarium fish in Iran...
2015: Veterinary Research Forum
František Moravec, Sarasamma Sheeba, Appukuttannair Biju Kumar
A new species of parasitic nematode, Rhabdochona (Rhabdochona) keralaensis sp. nov., is described based on specimens recovered from the intestine of Anguilla bengalensis bengalensis (Gray) collected from the freshwater bodies of Kerala State, southern India. It is characterized mainly by the presence of ten anterior prostomal teeth, absence of basal teeth, simple deirids, length of spicules, number and arrangement of preanal papillae and non-filamented eggs. Two species of camallanid nematodes, adults of Camallanus cotti Fujita, 1927 and a single Procamallanus (Spirocamallanus) sp...
March 2012: Acta Parasitologica
Shari K Hanson, Jeffrey E Hill, Craig A Watson, Roy P E Yanong, Richard Endris
The effect of 0.2% emamectin benzoate (SLICE; Intervet/ Schering-Plough Animal Health, Roseland, New Jersey) administered in top-dressed, pelleted commercial fish feed was evaluated for control of freshwater Argulus sp. in goldfish Carassius auratus and koi carp, a variant of common carp Cyprinus carpio, in freshwater aquaria at 24-25 degrees C. Sixteen individually housed goldfish were each exposed to 37 Argulus. The number of fish lice attached to each fish at the start of the experiment was not determined; however, the total number of motile fish lice in each aquarium (on fish and in the water) was determined at the start and end of each experiment...
March 2011: Journal of Aquatic Animal Health
Mary E Mainous, Stephen A Smith, David D Kuhn
Edwardsiellosis is an important bacterial infection of freshwater and marine fishes. Edwardsiella ictaluri causes enteric septicemia of catfish, and E. tarda causes emphysematous putrefactive disease of catfish and fish gangrene in various species; these diseases have considerable economic effects on the aquaculture industry. In addition, E. tarda is an important zoonotic pathogen. Thus, the reduction or elimination of these pathogens from an aquarium or aquaculture facility is imperative. This study examined a variety of commercially available chemicals for their ability to reduce or eliminate E...
December 2010: Journal of Aquatic Animal Health
C A Mendoza-Palmero, R Aguilar-Aguilar
We describe herein the first occurrence of the monogenean Urocleidoides vaginoclaustrum in the wild. This monogenean was originally described from an aquarium neotropical fish examined in India. Worms were collected from the gills of Xiphophorus hellerii, a species native to tropical Mexico but introduced to the Los Berros Spring in the State of Durango, Northern Mexico. These specimens showed slight morphological differences in the sclerotized structures of the haptor with respect to the specimens described from India...
October 2008: Parasitology Research
A Passantino, D Macrì, P Coluccio, F Foti, F Marino
Mycobacterium fortuitum, as well as Mycobacterium marinum and Mycobacterium chelonae, are the etiological agents of fish Mycobacterioses. Mycobacteriosis has been reported to affect a wide range of freshwater and marine fish species, suggesting an ubiquitous distribution, and can cause zoonotic infections (known as "fish tank granuloma" or "swimming pool granuloma") in humans exposed to fish and contaminated water. Infection in human consists of nodular cutaneous lesions that can progress to tenosynovitis, arthritis, and osteomyelitis, depending on the immunological status...
July 2008: Travel Medicine and Infectious Disease
R G Zanoni, D Florio, M L Fioravanti, M Rossi, M Prearo
The occurrence of Mycobacterium spp. in freshwater and marine ornamental fish was studied in Italy from June 2002 to May 2005. Two surveys were carried out, one of aquarium fish sent to the Laboratory for diagnosis, and the other of prevalence of infection by mycobacteria in ornamental fish imported into Italy. Bacterial isolation was carried out from the spleen, kidney and liver, and the isolates were subsequently identified by biochemical tests. In the first survey, 387 fish were examined and Mycobacterium spp...
June 2008: Journal of Fish Diseases
Natalie D Mylniczenko, Brigita Harris, Rachel E Wilborn, Forrest A Young
Blood culture is a diagnostic tool used in confirming bacterial disease in teleostean and elasmobranch fishes. Unlike teleosts, elasmobranchs have a normal microflora in multiple organs, but their blood has generally been considered to be sterile. In regular exams of elasmobranchs conducted at a public aquarium, occasional blood samples have tested positive on culture. This finding prompted a blood culture survey of healthy captive and wild elasmobranchs (sharks and stingrays), which showed that 26.7% of all animals were positive...
September 2007: Journal of Aquatic Animal Health
Dennis Kaw Gomez, Dong Joo Lim, Gun Wook Baeck, Hee Jeong Youn, Nam Shik Shin, Hwa Young Youn, Cheol Yong Hwang, Jun Hong Park, Se Chang Park
Betanodaviruses are the causative agents of viral nervous necrosis (VNN) in cultured marine fish. A total of 237 apparently healthy aquarium fish, marine (65 species) and freshwater (12 species) fishes and marine invertebrates (4 species), which were stocked in a commercial aquarium in Seoul, South Korea, were collected from November 2005 to February 2006. The brains of the fish and other tissues of the invertebrates were examined by reverse transcriptase-polymerase chain reaction (RT-PCR) and nested PCR to detect betanodavirus...
December 2006: Journal of Veterinary Science
Frida Ben-Ami, Daniel Gold, Bernard Fried
The discovery of Transversotrema patialense cercariae in an aquarium harboring tropical fish triggered the present study. The purpose was to estimate the potential range of infection of local freshwater and fishpond populations by T. patialense. Experimental infection of T. patialense differed among 3 species employed: 76.5% for Tilapia zillii, 37.8% for Gambusia affinis, and none for 2 varieties of Cyprinus carpio. These patterns of infectivity are different from those published previously for T. patialense infections, and they may be attributed to the origin of the fish (temperate water vs...
August 2005: Journal of Parasitology
D J Morris, A Adams
Proliferative kidney disease (PKD), caused by the malacosporean parasite Tetracapsuloides bryosalmonae, causes significant losses among salmonids in Western Europe and North America. The role of salmonid fish in the life-cycle of this parasite has been conjectured upon for over a quarter of a century. To examine whether fish can transmit the infection to bryozoans, the known invertebrate host, water containing parasitized brown trout Salmo trutta was pumped into tanks containing colonies of Fredericella sultana collected from the wild...
December 2006: Parasitology
M Pate, V Jencic, M Zolnir-Dovc, M Ocepek
Thirty-five aquarium fish were investigated for the presence of mycobacteria by culture and molecular methods. The following species were examined: goldfish Carassius auratus auratus, guppy Poecilia reticulata, 4 three-spot gourami Trichogaster trichopterus, dwarf gourami Colisa lalia, Siamese fighting fish Betta splendens, freshwater angelfish Pterophyllum scalare, African cichlid fish Cichlidae spp., cichlid fish Microgeophagus altispinosus, cichlid fish Pseudotropheus lombardoi, blue streak hap Labidochromis caeruleus, sterlet Acipenser ruthenus, southern platyfish Xiphophorus maculatus, and catfish Corydoras spp...
April 6, 2005: Diseases of Aquatic Organisms
F M Akaishi, H C Silva de Assis, S C G Jakobi, D R Eiras-Stofella, S D St-Jean, S C Courtenay, E F Lima, A L R Wagener, A L Scofield, C A Oliveira Ribeiro
The water-soluble fraction (WSF) of crude oil is a complex highly volatile and toxic mixture of hydrocarbon chains (polyaromatics, heterocyclics), phenols, and heterocyclic compounds containing nitrogen and sulfur. To evaluate the toxic effects of WSF in tropical freshwater teleosts and to develop methodologies that could investigate the toxic mechanisms of WSF in tropical organisms, an acute toxicity experiment was conducted with Astyanax sp. Three dilutions (15%, 33%, and 50%) of WSF obtained from Campos Bay's crude oil (Brazil) were used to study morphological and biochemical responses of the fish...
February 2004: Archives of Environmental Contamination and Toxicology
K Molnár, F Shaharom-Harrison, Cs Székely
Ninety-five specimens of 14 freshwater fish species from small streams in the Kuala Terengganu district and the Lake Kenyir Reservoir, Malaysia, were surveyed for coccidian infections. Six fish species proved to be infected with apicomplexans belonging to the genus Goussia. In all of these fishes Goussia species were found in unsporulated and semisporulated stages. Oöcysts of four species inhabiting the intestinal epithelium became sporulated in tap-water within 24 hours. In two fish species sporulation failed and only unsporulated oöcysts were recorded in the intestine...
May 2003: Systematic Parasitology
A Decostere
Flavobacterium columnare is the cause of columnaris disease, a serious condition affecting numerous freshwater fish species all over the world. Hitherto, only very scarce information is available on the pathogenesis of this bacterial disease, making it difficult to adopt a preventive approach to combat this pathogen. This study ambiates to shed more light on the way F. columnare interacts with its host. Since a number of difficulties occur in trying to isolate F. columnare from diseased fish, first of all, a selective medium was developed which enabled to recover various isolates from diseased live-bearing aquarium fish...
2002: Verhandelingen—Koninklijke Academie Voor Geneeskunde Van België
R P Yanong
Because thousands of species comprise the aquarium hobby, ornamental fish nutrition is an art and a science that must be approached systematically and holistically. Examinations of species-specific anatomy and natural history are useful starting points. Food fish research provides fundamental nutritional information, but food fish are not ideal models for all ornamentals. This article briefly addresses freshwater and marine fish issues, including considerations for pond fish and live foods.
January 1999: Veterinary Clinics of North America. Exotic Animal Practice
T R Cecil
With the continued popularity of fish as pets, a market can be established for veterinarians with experience with aquatic animals. Fish owners often form a strong and significant emotional, as well as economic, bond with their aquariums or ponds. With proper husbandry, common mistakes made by fish owners can be treated, if not avoided. Diagnosis and treatment of a majority of common fish problems can be facilitated through an understanding of proper saltwater and freshwater fish husbandry.
January 1999: Veterinary Clinics of North America. Exotic Animal Practice
P H Greenwood
No abstract text is available yet for this article.
December 1966: Journal of Small Animal Practice
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