A review of the myxosporean genus Kudoa Meglitsch, 1947, and its impact on the international aquaculture industry and commercial fisheries

Moran, J. D. W.; Whitaker, David; Kent, Michael L.

doi:10.1016/s0044-8486(98)00437-2

Cited by 211 publications

(194 citation statements)

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“…High economic losses caused by Kudoa spp. infection in farmed fish have been reported for several host fish species (ALVAREZ-PELLITERO & SITJÁ- BOBODILLA, 1993;KRISTMUNDSSON & FREEMAN, 2014;MORAN et al, 1999;WHITAKER & KENT, 1991).…”

Section: Discussionmentioning

confidence: 96%

“…in Mugil liza (EIRAS et al, 2016), Trichiurus lepturus (ANDRADA et al, 2005); Mugil platanus (KNOFF & SERRA-FREIRE, 1993) Scomberomorus brasiliensis (EIRAS et al, 2014a), Odontesthes bonariensis, and Micropogonias furnieri (EIRAS et al, 2016). Most of these parasites are histozoic and place themselves within the fish's skeletal muscles, thus forming a sort of elongated plasmodium (for species list see MORAN et al, 1999;LOM & DYKOVÁ, 2006;EIRAS et al, 2014b). A relatively large number of species place themselves in other organs.…”

Section: Introductionmentioning

confidence: 99%

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Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Eiras

Fujimoto

Madi

et al. 2016

Rev. Bras. Parasitol. Vet.

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This study reports on Kudoa spp. (Myxozoa, Multivalvulida) from the fish species Lutjanus analis, Bagre marinus, Aspistor luniscutis and Lutjanus jocu, which were caught in Aracaju, state of Sergipe, Brazil. The parasites formed oval plasmodia around the esophagus of L. analis, and elongated plasmodia inside the skeletal muscle of B. marinus, A. luniscutis and L. jocu. Host myoliquefaction was not observed in all the cases studied. The current study provides a morphological and morphometric description of each parasite as well as a comparison with all the species described worldwide. Lack of molecular data impaired specific identification of the parasites. The importance of these parasites is discussed and the need for further studies on infections in Brazilian fish is emphasized because of the high economic impact of some Kudoa species which cause liquefaction in hosts' muscles and render these fish unsuitable for consumption.Keywords: Kudoa, Myxosporea, parasites, marine fish, Brazil. ResumoEste estudo relata Kudoa spp. (Myxozoa, Multivalvulida) de espécies de peixes Lutjanus analis, Bagre marinus, Aspistor luniscutis e Lutjanus jocu que foram capturados na costa litorânea de Aracaju, Estado de Sergipe, Brasil. Os parasitas formavam plasmódios ovais rodeando o esófago em L. analis, enquanto que nas espécies B. marinus, A. luniscutis e L. jocu formavam plasmódios alongados no interior das fibras musculares. Fenômenos de liquefação do músculo do hospedeiro não foram observados. O presente estudo proporciona uma descrição morfológica e morfométrica de cada parasita, sendo feita uma comparação com todas as espécies conhecidas em todo mundo. A inexistência de dados moleculares prejudica a identificação específica dos parasitas. A importância destes parasitas é discutida e a necessidade de mais estudos relacionados a infecções em peixes brasileiros é enfatizada por causa do alto impacto econômico de algumas espécies de Kudoa que causam liquefação nos músculos dos hospedeiros e tornam estes peixes impróprios para consumo.Palavras-chave: Kudoa, Myxosporea, parasitas, peixes marinhos, Brasil.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Eiras

Fujimoto

Madi

et al. 2016

Rev. Bras. Parasitol. Vet.

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“…Gilman & Eiras (1998) showed that this parasite is responsible for the rejection of large quantities of fish by the canning industry. This type of infection, and infection with related species, is impossible to fight and may have serious economic consequences in the exploitation of wild stocks of some species (see MORAN et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Parasites of marine, freshwater and farmed fishes of Portugal: a review

Eiras

2016

Rev. Bras. Parasitol. Vet.

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An extensive literature review is made of the parasites in marine and freshwater fish in mainland Portugal, the Portuguese archipelagos of the Azores and Madeira, as well as in farmed fish. The host(s) of each parasite species, its location in the host, site of capture of the host, whenever possible, and all the available bibliographic references are described. The economic importance of some parasites and the zoonotic relevance of some parasitic forms are discussed. A general overview of the data is provided, and some research lines are suggested in order to increase and complement the current body of knowledge about the parasites of fish from Portugal.Keywords: Parasites, fish, pathology, economy, zoonotic diseases, Portugal. ResumoÉ feita uma revisão do conhecimento dos parasitas de peixes de Portugal com base em extensa compilação bibliográfica. São referidos os parasitas de peixes marinhos e de água doce do continente, dos Arquipélagos da Madeira e dos Açores, bem como os parasitas de peixes de piscicultura. Para cada espécie é indicado o hospedeiro, localização no hospedeiro, local de pesca quando possível, e referências bibliográficas disponíveis. Discute-se a importância econômica de alguns dos parasitas e a relevância zoonótica de algumas formas. É feita uma avaliação geral dos dados e sugerem-se linhas de pesquisa que aumentem e complementem o conhecimento atual sobre os parasitas de peixes de Portugal.

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“…They are characterized by spores with four or more shell valves and polar capsules in each valve (Moran et al 1999;Lom and Dyková 2006). Several Kudoa species have been of economic concern in aquaculture and commercial marine fisheries because of negative visual impact on product quality related to macroscopic cysts in somatic muscles and because of post-mortem myoliquefaction, commonly known as "jellied meat".…”

mentioning

confidence: 99%

“…Reportedly, food poisoning from unidentified causes is often related to the consumption of tuna (Suzuki *Corresponding Author: ni-abe@city.osaka.lg.jp 2012). At present, five Kudoa species that are histozoic in somatic muscles (K. crumena, K. nova, K. neothunni, K. thunni, and K. shiomitsui) have been found in tuna (Arai and Matsumoto 1953;Moran et al 1999;Fiala and Bartosova 2010;Zhang et al 2010;Matsukane et al 2011), but it remains unclear whether these species cause food poisoning or not. Furthermore, the host specificity of K. septempunctata found in olive flounder remains unclear.…”

mentioning

confidence: 99%

Molecular characterization of kudoid parasites (Myxozoa: Multivalvulida) from somatic muscles of Pacific bluefin (Thunnus orientalis) and yellowfin (T. albacores) tuna

Abe

Maehara²

2013

Acta Parasitologica

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The public health importance of Kudoa infection in fish remains unclear. Recently in Japan a Kudoa species, K. septempunctata, was newly implicated as a causative agent of unidentified food poisoning related to the consumption of raw olive flounder. Other marine fishery products are also suspected as causative raw foods of unidentified food poisoning. For this study, we detected kudoid parasites from sliced raw muscle tissues of a young Pacific bluefin and an adult yellowfin tuna. No cyst or pseudocyst was evident in muscles macroscopically, but pseudocysts were detected in both samples histologically. One substitution (within 1100 bp overlap) and ten substitutions (within 753 bp overlap) were found respectively between the partial sequences of 18S and 28S rDNAs from both isolates. Nucleotide sequence similarity searching of 18S and 28S rDNAs from both isolates showed the highest identity with those of K. neothunni from tuna. Based on the spore morphology, the mode of parasitism, and the nucleotide sequence similarity, these isolates from a Pacific bluefin and a yellowfin tuna were identified as K. neothunni. Phylogenetic analysis of the 28S rDNA sequence revealed that K. neothunni is classifiable into two genotypes: one from Pacific bluefin and the other from yellowfin tuna. Recently, an unidentified kudoid parasite morphologically and genetically similar K. neothunni were detected from stocked tuna samples in unidentified food poisoning cases in Japan. The possibility exists that K. neothunni, especially from the Pacific bluefin tuna, causes food poisoning, as does K. septempunctata.

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A review of the myxosporean genus Kudoa Meglitsch, 1947, and its impact on the international aquaculture industry and commercial fisheries

Cited by 211 publications

References 65 publications

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Parasites of marine, freshwater and farmed fishes of Portugal: a review

Molecular characterization of kudoid parasites (Myxozoa: Multivalvulida) from somatic muscles of Pacific bluefin (Thunnus orientalis) and yellowfin (T. albacores) tuna

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