On a New Species of Hysterothylacium (Nematoda: Anisakidae) from Cauque mauleanum (Pisces: Atherinidae) by Brightfield and Scanning Electron Microscopy

Torres, Patricio; Andrade, Paula Márcia Marques de Campos; Silva, Ricardo

doi:10.1590/s0074-02761998000600010

Cited by 21 publications

(13 citation statements)

References 8 publications

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“…Prevalence (%) of gastrointestinal helminth parasites of loggerhead sea turtles in the Mediterranean and north-east (NE) Atlantic. Only those species recorded with >10% prevalence in at least 1 study are shown tion of fish discarded from fishing vessels, since the adult stages of the species live in teleosts (Bruce et al 1994, Torres et al 1998). …”

Section: Composition and Aggregation Of Helminth Communitiesmentioning

confidence: 99%

Gastrointestinal helminth community of loggerhead sea turtle Caretta caretta in the Adriatic Sea

Gračan

Buršić²,

Mladineo³

et al. 2012

Dis. Aquat. Org.

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We analysed the intestinal helminth community of 70 loggerhead sea turtles Caretta caretta with a curved carapace length ranging from 25 to 85.4 cm, recovered dead in neritic foraging habitats in the Adriatic Sea in 1995 to 2004. The overall prevalence of infection was high (70.0%), with a mean abundance of 36.8 helminth parasites per turtle. Helminth fauna comprised 5 trematodes (Calycodes anthos, Enodiotrema megachondrus, Orchidasma amphiorchis, Pachypsolus irroratus, Rhytidodes gelatinosus) and 3 nematodes (Sulcascaris sulcata, Anisakis spp., Hysterothylacium sp.), with 6 taxa specific for marine turtles. In terms of infection intensity and parasite abundance, O. amphiorchis was the dominant species (mean intensity: 49.8; mean abundance: 12.8), followed by R. gelatinosus (30.5 and 8.3, respectively) and P. irroratus (23.5 and 7.0, respectively), while larval Anisakis spp. exhibited the highest prevalence (34.3%). The intensity of helminth infection ranged from 1 to 302 (mean: 52.6 ± 69.1) and was not correlated with the size of turtles; this relationship held for all species, except R. gelatinosus (r S = 0.556, p < 0.05). In comparison to other marine habitats, the helminth community of Adriatic loggerheads is characterised by higher species diversity (Shannon-Wiener H' = 1.58) and evenness (E = 0.76), and lower dominance values (Berger-Parker d = 0.35), which can be attributed to the life history and feeding ecology of sea turtles in recruited neritic grounds and the diversity of their benthic prey.

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Section: Composition and Aggregation Of Helminth Communitiesmentioning

confidence: 99%

Gastrointestinal helminth community of loggerhead sea turtle Caretta caretta in the Adriatic Sea

Gračan

Buršić²,

Mladineo³

et al. 2012

Dis. Aquat. Org.

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“…In South American countries, larvae and adults of Hysterothylacium sp. have already been reported from Ecuador, Hysterothylacium corrugatum (Deardorff & Overstreet 1981), Argentina, Hysterothylacium rhamdiae (Brizzola & Tanzola 1995), Hysterothylacium patagonense (Moravec et al 1997), Hysterothylacium aduncum (Incorvaia & Hernández 2006) and from Chile, Hysterothylacium geshei (Torres et al 1998), Hysterothylacium winteri (Torres & Soto 2004) and H. aduncum (Torres et al 2010). In Brazil, nematode adults of Hysterothylacium fortalezae (Klein 1973) and Hysterothylacium reliquens (Norris & Overstreet 1975) were also recovered from teleosteans on the northeastern coast (Guimarães & Cristofaro 1974, Deardorff & Overstreet 1980.…”

mentioning

confidence: 93%

Genetic and morphological characterisation of a new species of the genus Hysterothylacium (Nematoda) from Paralichthys isosceles Jordan, 1890 (Pisces: Teleostei) of the Neotropical Region, state of Rio de Janeiro, Brazil

Knoff

Felizardo

Iñiguez

et al. 2012

Mem. Inst. Oswaldo Cruz

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Taking into account the difficulties of taxonomic identification of larval anisakid nematodes based on morphological characters, genetic analyses were performed, together with those usually applied, in order to identify anisakid larvae found in the flounder Paralichthys isosceles from the littoral of the state of Rio de Janeiro, Brazil. The analysis of 1,820 larvae revealed a new species, similar to Hysterothylacium MD, Hysterothylacium 2, Hysterothylacium KB and Hysterothylacium sp regarding the absence of the larval tooth, an excretory pore situated below the nerve ring level, and slender lateral alae. Moreover, the new species differs from Hysterothylacium fortalezae and Hysterothylacium reliquens with regard to the number and size of spines present on the tail end and from Hysterothylacium patagonicus by the absence of interlabia. The maximum parsimony and neighbour joining tree topologies based on the 18S ribosomal DNA gene, complete internal transcribed spacer region and cytochrome oxidase 2 (COII) gene demonstrated that the Brazilian larvae belong to Raphidascarididae and represent a unique genetic entity, confirmed as a new Hysterothylacium species. Furthermore, the new species presents COII genetic signatures and shares polymorphisms with Raphidascarididae members. This is the first description of a new anisakid species from Brazil through the integration of morphological and molecular taxonomy data

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“…With 67 described species worldwide, Hysterothylacium Ward & Magath, 1917 is one of the largest groups of ascaridoid nematodes (Bruce et al 1994;Moravec et al 1996Moravec et al , 1997Moravec andNagasawa 1998, 2000;Torres et al 1998;Torres and Soto 2004;Gopar-Merino et al 2005;Li et al 2007aLi et al , b, 2008Raffel and Anderson 2009;Rossin et al 2011). Adults of Hysterothylacium commonly occur in the digestive tract of marine, estuarine and freshwater fishes (Deardorff and Overstreet 1980;Bruce and Cannon 1989;Bruce et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular identification of Hysterothylacium longilabrum sp. nov. (Nematoda: Anisakidae) and larvae of different stages from marine fishes in the South China Sea

Liu

Zhang

2012

Parasitol Res

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On a New Species of Hysterothylacium (Nematoda: Anisakidae) from Cauque mauleanum (Pisces: Atherinidae) by Brightfield and Scanning Electron Microscopy

Cited by 21 publications

References 8 publications

Gastrointestinal helminth community of loggerhead sea turtle Caretta caretta in the Adriatic Sea

Gastrointestinal helminth community of loggerhead sea turtle Caretta caretta in the Adriatic Sea

Genetic and morphological characterisation of a new species of the genus Hysterothylacium (Nematoda) from Paralichthys isosceles Jordan, 1890 (Pisces: Teleostei) of the Neotropical Region, state of Rio de Janeiro, Brazil

Morphological and molecular identification of Hysterothylacium longilabrum sp. nov. (Nematoda: Anisakidae) and larvae of different stages from marine fishes in the South China Sea

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