The histopathology of Scomber japonicus infection by Nematobothriun scombri (Trematoda: Didymozoidae) and of larval anisakid nematode infections in the liver of Pagrus pagrus

Eiras, J. C.; Rêgo, Amilcar Arandas

doi:10.1590/s0074-02761987000200001

Cited by 19 publications

(12 citation statements)

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“…For example, Lester (1980) and Eiras & Rego (1987) observed haemorrhages in the didymozoid capsules but no haemorrhages were observed by Perera (1992a, b) or in the present study. Patches of cytoplasm were found between connective tissue fibrils of the capsule wall of didymozoid-infected gill filaments (Perera 1992b), but they were not observed in the capsule wall of the present study.…”

Section: Discussioncontrasting

confidence: 76%

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Light and electron microscopic study of the pathology of a species of didymozoid (Trematoda, Digenea) infecting the gill arches of Scomber australasicus (Teleostei, Scombridae)

Perera¹

1994

Dis. Aquat. Org.

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The response of the host, slimy mackerel Scornber australasicus, to infection with a didymozoid parasite consists of (1) the formation of a capsule around the worms by proliferation of cells of the epidermis and dermis, (2) infiltration of leucocytes into the capsule wall, (3) high vascularisation of the capsule wall and (4) formation of a d d~t~o n a l filaments in the cytoplasm of the capsule epidermal cells. Neither host connective tissue, amoeboid cells nor blood vessels were observed between worm sections in the lumen of the capsule.

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Section: Discussioncontrasting

confidence: 76%

“…Lester 1979, 1980, Eiras & Rego 1987. This is one of a series of papers describing the pathological effects on the host of didymozoid parasites living in different tissues of slimy mackerel S c o m b e r australasjcus.…”

Section: Introductionmentioning

confidence: 99%

Light and electron microscopic study of the pathology of a species of didymozoid (Trematoda, Digenea) infecting the gill arches of Scomber australasicus (Teleostei, Scombridae)

Perera¹

1994

Dis. Aquat. Org.

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“…Lester (1980) and Eiras & Rego (1987) studied the pathology of some didymozonas by means of light microscopy, and I examined the light microscopic pathology of the species described in the present paper (see Perera 1992). The parasite pair occupies a space between the basal lamina of the lateral epithelium and the efferent artery, where it is encapsulated by the primary lateral epithelium and the efferent artery of the primary gill filament (Perera 1992).…”

Section: Discussionmentioning

confidence: 98%

Ultrastructure of the primary gill lamellae of Scomber australasicus infected by a didymozoid parasite

Perera¹

1992

Dis. Aquat. Org.

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Didymozoid parasites occupy the space between the basal lamina of the primary epithelium and the efferent artery of the primary gill lamellae. The response of the host, slimy mackerel, consists mainly in the formation of (1) a capsule around the worms; (2) a layer of columnar epithelia1 cells; (3) electron-dense filamentous bands around the nucleus of the ep~thelial cells of the capsule; and (4) additional chloride cells in the capsule. Additionally, subepithelial cells degenerate and amoeboid cells occur in the lumen of the capsule in response to didymozoan infection.

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“…Nematodes of the genus Hysterothylacium Moravec, Kohn et Fernandes, 1993 have been recorded in Chile (Carvajal and González, 1990), Brazil (Eiras and Rego, 1987), Kuwait (Petter and Sey, 1997), Yugoslavia (Petter and Radujkovic, 1986), Japan (Yoshinaga et al, 1989), and United States (Moser and Hsieh, 1992). Hysterothylacium spp.…”

Section: Introductionmentioning

confidence: 99%

First record of Hysterothylacium sp. Moravec, Kohn et Fernandes, 1993 larvae (Nematoda: Anisakidae) infecting the ornamental fish Hyphessobrycon eques Steindachner, 1882 (Characiformes, Characidae)

Acosta

Silva

2015

Braz. J. Biol.

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This study reports for the first time infection with Hysterothylacium sp. larvae in the ornamental fish Hyphessobrycon eques from the Paranapanema River, Jurumirim Reservoir, São Paulo State, Brazil. A sample of 33 specimens of H. eques was collected in October, 2011. Four specimens of H. eques were parasitized by Hysterothylacium sp. larvae in the intestine and coelomic cavity, with prevalence of 12.1%, mean intensity of infection of 1, and mean abundance of 0.121 ± 0.05. A total of 40 unidentified free-living nematodes were found in the stomach content of 17 fish. This fish species is introduced in the Paranapanema River. Invasive species may affect the native fauna given the introduction of pathogens and parasites. This study also complements data on the diet of H. eques due to the records of free-living nematode as part of the stomach content. Infections with Hysterothylacium sp. larvae may affect the biology of this fish and bring about profit losses to aquarists.

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The histopathology of Scomber japonicus infection by Nematobothriun scombri (Trematoda: Didymozoidae) and of larval anisakid nematode infections in the liver of Pagrus pagrus

Cited by 19 publications

References 0 publications

Light and electron microscopic study of the pathology of a species of didymozoid (Trematoda, Digenea) infecting the gill arches of Scomber australasicus (Teleostei, Scombridae)

Light and electron microscopic study of the pathology of a species of didymozoid (Trematoda, Digenea) infecting the gill arches of Scomber australasicus (Teleostei, Scombridae)

Ultrastructure of the primary gill lamellae of Scomber australasicus infected by a didymozoid parasite

First record of Hysterothylacium sp. Moravec, Kohn et Fernandes, 1993 larvae (Nematoda: Anisakidae) infecting the ornamental fish Hyphessobrycon eques Steindachner, 1882 (Characiformes, Characidae)

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