Nematodes of elasmobranch fishes from the southern coast of Brazil

Knoff, Marcelo; Clemente, Sérgio Carmona de São; Pinto, Roberto Magalhães; Gomes, Delir Corrêa

doi:10.1590/s0074-02762001000100009

Cited by 28 publications

(14 citation statements)

References 13 publications

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“…It should be noted that Antarctic Chondrichthyes are not infected with adult nematodes. However, representatives of the families Anisakidae, Cystidicolidae and Camallanidae occur in Chondrichthyes in other geographical regions of the World (Mozgovoy 1953;Hartwich 1974;Chabaud 1975a, b;Anderson 2000;Knoff et al 2001a). …”

Section: Geographical Distribution and Host Specificity Of Antarctic mentioning

confidence: 99%

Helminths of Antarctic fishes: Life cycle biology, specificity and geographical distribution

Rocka

2006

Acta Parasitologica

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Bony fishes (Teleostei) play an important role in the completion of life cycles of helminth parasites in the Antarctica. These fishes may be definitive, second intermediate or paratenic hosts of the helminths. The most species-rich taxon is Digenea. Virtually all of these digeneans use teleosts as definitive hosts. Only one species, Otodistomum cestoides, occurs as the adult stage in skates (Chondrichthyes), with teleosts as its second intermediate host. Among 14 cestode species maturing in fishes only one, Parabothriocephalus johnstoni, occurs in a bony fish, Macrourus whitsoni, whereas the others are parasites of Chondrichthyes (cartilaginous fishes). Antarctic Chondrichthyes are not infected with nematode and acanthocephalan species. Specificity to the intermediate and/or paratenic hosts of the majority of Antarctic helminths is wide, whereas that for definitive hosts is often narrower, restricted to one order or sometimes even to one or two host species. Almost all of 73 helminth species maturing in Antarctic fishes are endemics. Only 4 digenean and one nematode species are cosmopolitan or bipolar.

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Section: Geographical Distribution and Host Specificity Of Antarctic mentioning

confidence: 99%

Helminths of Antarctic fishes: Life cycle biology, specificity and geographical distribution

Rocka

2006

Acta Parasitologica

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“…Voucher specimens are deposited in the Coleção Helmintológica do Instituto Oswaldo Cruz (CHIOC), Fiocruz, Rio de Janeiro, RJ, Brazil. At least one specimen of each host species was deposited as voucher host, simbiotype sensu Brooks (1993) (Knoff et al 2001).…”

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confidence: 99%

Digenea and acanthocephala of elasmobranch fishes from the southern coast of Brazil

Knoff

Clemente

Pinto

et al. 2001

Mem. Inst. Oswaldo Cruz

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“…Although the number of cases of anisakiasis diagnosed each year is increasing throughout the world and the presence *Corresponding author: ifigueiredo@id.uff.br Israel Figueiredo Junior et al 400 of Anisakis nematodes has been confirmed in several species of fish in the Brazilian coast (Pereira et al 2000, Knoff et al 2001, Melo et al 2006, Knoff et al 2007, Motta et al 2008, the infectious status of the human population along the coast of Brazil is unclear. To the best of our knowledge, there are no proven reported clinical cases or serological analyses of the Brazilian population.…”

Section: Introductionmentioning

confidence: 99%

Cross-sectional study of serum reactivity to Anisakis simplex in healthy adults in Niterói, Brazil

Figueiredo

Vericimo

Cardoso

et al. 2013

Acta Parasitologica

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Although the incidence of anisakiasis is rising worldwide, its frequency is still unknown in Brazil. The aim of this study was to verify immunoreactivity to Anisakis simplex antigens in healthy adults and determine its possible relationship with frequency of fish consumption and allergy symptoms. A prospective cross-sectional study was carried out with 67 volunteers recruited from a military facility in Niterói, Brazil. The subjects completed a structured questionnaire and serum titers of specific anti-Anisakis IgE and IgG antibodies were measured. The association between frequency of fish intake and IgE reactivity was evaluated by Fisher's exact test. Almost all subjects (97.0%, 65/67) that consumed seafood; 64.6% (42/65) ate fish at least once weekly. Of all seafood consumers, 56.9% (37/65) reported allergy symptoms, being gut allergies most often cited (35.5%). IgE seroreactivity to Anisakis simplex was found in 20.9% of subjects (14/67), with 13.4% (9/67) reacting exclusively to somatic antigen, 3.0% (2/67) exclusively to excretory/secretory antigens and 4.5% (3/67) to both antigens. There was a significant association between frequency of fish consumption and positive serology (p = 0.019). An immunoblot assay for Anisakis antigens showed different positive bands for IgG. The direct relationship between ELISA reactivity and frequency of fish intake and absence of association with allergy symptoms suggests previous contact with Anisakis simplex antigens.

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Nematodes of elasmobranch fishes from the southern coast of Brazil

Abstract: New records for nematode species recovered from elasmobranch fishes in

Cited by 28 publications

References 13 publications

Helminths of Antarctic fishes: Life cycle biology, specificity and geographical distribution

Helminths of Antarctic fishes: Life cycle biology, specificity and geographical distribution

Digenea and acanthocephala of elasmobranch fishes from the southern coast of Brazil

Cross-sectional study of serum reactivity to Anisakis simplex in healthy adults in Niterói, Brazil

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