Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Stunkard, Horace W.

doi:10.2307/1540444

Cited by 26 publications

(27 citation statements)

References 24 publications

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“…In the life cycle of these cestodes, adults infect the intestine of elasmobranchs, the definitive hosts, and larval forms are found in the celomatic cavity and musculature of teleosteans, crustaceans, and cephalopods, second intermediate hosts (Agustí et al 2005;Aznar et al 2007;Campbell and Beveridge 1994;Knoff et al 2002;Scholz et al 1998;Stunkard 1977). Nevertheless, accidental human infections by larvae of Trypanorhyncha due to ingestion of raw fish meat have been reported (Bates 1990).…”

Section: Introductionmentioning

confidence: 99%

Trypanorhyncha cestodes of hygienic-sanitary importance infecting flounders Paralichthys patagonicus Jordan, 1889 and Xystreurys rasile (Jordan, 1891) of the Neotropical region, Brazil

et al. 2012

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From February 2007 to July 2010, 27 specimens of Paralichthys patagonicus, and from September to December 2010, 30 specimens of Xystreurys rasile were purchased from fish markets in the municipalities of Cabo Frio and Rio de Janeiro, State of Rio de Janeiro, Brazil. The fishes were measured, necropsied, filleted, and further had their organs investigated. In P. patagonicus, 19 (70, 3 %) were parasitized with metacestodes of Trypanorhyncha species: Nybelinia erythraea, N. lingualis, Heteronybelinia nipponica, Pterobothrium crassicolle, Grillotia carvajalregorum, and Callitetrahynchus gracilis. In X. rasile, 17 (56, 6 %) were parasitized with metacestodes: N. erythraea, N. lingualis, H. nipponica, and G. carvajalregorum. The parasitological indices of prevalence, intensity, mean intensity, abundance, mean abundance, range of infection, and infection sites of each parasite species are presented. This is the first report of Trypanorhyncha cestodes parasitizing specimens of P. patagonicus and X. rasile. These cestodes were studied due to their importance during fish sanitary inspection, if one considers the harm that the repulsive aspect of infected meat causes to consumers.

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Section: Introductionmentioning

confidence: 99%

Trypanorhyncha cestodes of hygienic-sanitary importance infecting flounders Paralichthys patagonicus Jordan, 1889 and Xystreurys rasile (Jordan, 1891) of the Neotropical region, Brazil

et al. 2012

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“…These metacestodes have long been known from the intestines of teleost fish and the genus Scolex Mueller, 1788 was proposed to accommodate them with Scolex pleuronectis Mueller, 1788 the type species (Stunkard 1977). Subsequently, other species were described and placed in this genus until Rudolphi (1819), doubting the validity of these species, synonymised them as Scolex polymorphus Rudolphi, 1819.…”

mentioning

confidence: 99%

Tetraphyllidean metacestodes of teleosts of the Great Barrier Reef, and the use of in vitro cultivation to identify them

Chambers¹,

Cribb²,

Jones³

2000

FOLIA PARASIT

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Abstract. The tetraphyllidean metacestode diversity of 310 teleost fishes, including 87 species from 31 families, was examined from Heron Island, The Great Barrier Reef, Australia. Eleven metacestode 'types' were identified with the use of light microscopy. Host-specificity varied greatly among metacestode types. Incorporation of in vitro cultivation allowed generic identification for some types. Types 1 and 2 belong to Uncibilocularis Southwell, 1925, and have triloculate bothridia and one pair of forked hooks with unequal prongs; Type 3 has quadriloculate bothridia. Hook development was insufficient to determine in which genus, Acanthobothrium van Beneden, 1849 or Calliobothrium van Beneden, 1850, this type may belong. Type 4 has unilocular bothridia with simple edges and belongs to Anthobothrium van Beneden, 1850. Type 5 has multiloculated bothridia which are invaginated within pouches. This type belongs to the Rhinebothriinae although its generic identity cannot be determined. The bothridia of Type 5 everted within 24 hours of in vitro cultivation and revealed the presence of two forms, one having 48 loculi per bothridium, the other 72 per bothridium. In vitro studies provide additional support for existing theories of onchobothriid scolex development.Tetraphyllidean metacestodes have traditionally been difficult to identify due to their relatively featureless scolex morphology, which lacks the diagnostic features of the adult cestodes. These metacestodes have long been known from the intestines of teleost fish and the genus Scolex Mueller, 1788 was proposed to accommodate them with Scolex pleuronectis Mueller, 1788 the type species (Stunkard 1977). Subsequently, other species were described and placed in this genus until Rudolphi (1819), doubting the validity of these species, synonymised them as Scolex polymorphus Rudolphi, 1819. Observations since then have suggested that the above species represent a number of tetraphyllidean species so that the names S. pleuronectis and S. polymorphus have become collective names encompassing metacestodes that share features common to this order of cestodes (Wardle and McLeod 1952, Caira and Ruhnke 1991, Dick and Choudhury 1995.Many species of fish on The Great Barrier Reef are known to harbour tetraphyllidean metacestodes (Lester and Sewell 1989) but no real attempt has been made to distinguish them. A number of workers have endeavoured, using in vitro techniques, to induce maturation of the metacestode scolex to more closely represent that of the adult, thus allowing at least partial identification of the species (Hamilton and Byram 1974, Carvajal et al. 1982). With that purpose in mind, in vitro cultivation was used in addition to morphological techniques to identify and quantify the number of species of tetraphyllidean metacestodes found parasitising teleost fishes of Heron Island, The Great Barrier Reef, Australia. MATERIALS AND METHODSMetacestodes were dissected from their hosts with the aid of a dissecting microscope. Specimens for morphological examination were...

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“…Después de estudiarlos, los nemátodes se guardaron en alcohol de 70% en viales de vidrio de 5 cm de altura con tapa de goma. Todas las muestras incluyeron una etiqueta 2 cm x 3 cm de papel canson en la que se colocó los siguientes datos: 1) Nombre y localización del parásito; 2) Nombre científico y vulgar del huésped; 3) Procedencia del huésped; 4) Fecha de colecta; 5) Nombre del colector y 6) Número de registro (el mismo de la libreta o ficha de recolección Joyeux & Baer (1936), Dollfus (1942), Yamaguti (1959), Stunkard (1977), Gaevskaya (1977), Palm (1995), Scholz et al (1998), Palm & Walter (2000) y Palm (2004). Las larvas del nemátodo Anisakis de acuerdo con Berland (1961), Koyama et al (1969), Smith & Wootten (1978), Smith (1983) y Matsuura et al (1992).…”

Section: Dosidicus Gigasunclassified

HELMINTOS PARÁSITOS DE Dosidicus gigas “POTA” EVISCERADA EN AREQUIPA, PERÚ

2011

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Studies on Tetraphyllidean and Tetrarhynchidean Metacestodes From Squids Taken on the New England Coast

Cited by 26 publications

References 24 publications

Trypanorhyncha cestodes of hygienic-sanitary importance infecting flounders Paralichthys patagonicus Jordan, 1889 and Xystreurys rasile (Jordan, 1891) of the Neotropical region, Brazil

Trypanorhyncha cestodes of hygienic-sanitary importance infecting flounders Paralichthys patagonicus Jordan, 1889 and Xystreurys rasile (Jordan, 1891) of the Neotropical region, Brazil

Tetraphyllidean metacestodes of teleosts of the Great Barrier Reef, and the use of in vitro cultivation to identify them

HELMINTOS PARÁSITOS DE Dosidicus gigas “POTA” EVISCERADA EN AREQUIPA, PERÚ

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