First Record of<i>Streptocara formosensis</i>(Nematoda: Acuariidae) from the Chubut Steamerduck,<i>Tachyeres leucocephalus</i>, Endemic to the Patagonian Coast, Southwest Atlantic

Agüero, María Laura; Díaz, Julia Inés

doi:10.1654/4635.1

Cited by 4 publications

(4 citation statements)

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“…It has been registered in a large number of Anseriformes, most of which are spread over the northern hemisphere (Gibson, 1968; Delacour, 1975; Carboneras, 1992; Królaczyk et al, 2012). However, Agüero & Diaz (2013) enlarged the host and geographical distribution of this parasite by recording it for the first time in T. leucocephalus from South America. Our findings were consistent with those records and support the hypothesis that Anas platyrhynchos and/or Cairina moschata play a key role in the dispersion of this nematode species on both the Patagonian coast and in the Chubut steamer duck (Agüero & Diaz, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…However, Agüero & Diaz (2013) enlarged the host and geographical distribution of this parasite by recording it for the first time in T. leucocephalus from South America. Our findings were consistent with those records and support the hypothesis that Anas platyrhynchos and/or Cairina moschata play a key role in the dispersion of this nematode species on both the Patagonian coast and in the Chubut steamer duck (Agüero & Diaz, 2013). Although the life cycle of S. formosensis is still unknown, it is probably similar to that of Streptocara crassicauda (Creplin, 1829) (McDonald, 1969).…”

Section: Discussionmentioning

confidence: 99%

“…In particular, the knowledge of nematodes from anatids in South America is very scarce. Most investigations have been carried out in Chile, Mexico (González et al, 2005; Mercado Reyes et al, 2010; Martínez Haro et al, 2012) and Brazil (Vicente et al, 1996; Vianna Mohr, 2001), while information about Argentina is still lacking (da Silveira et al, 2006; Agüero & Diaz, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Stomach nematodes of three sympatric species of anatid birds off the coast of Patagonia

et al. 2015

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The present study focuses on the nematode community in the stomachs of three sympatric anatid bird species from the Central Patagonian coast, Argentina. The bird species include the Chubut steamer duck, Tachyeres leucocephalus, the crested duck, Lophonetta specularioides, and the black-necked swan, Cygnus melancoryphus. Up to 138 nematodes representing five species were recovered from 10 of the 13 ducks examined, with an overall prevalence of 77% and a mean intensity of 13.8. Nematodes isolated from the gizzard were Streptocara formosensis and Sciadiocara legendrei (Acuariidae) in T. leucocephalus, and Epomidiostomum vogelsangi (Amidostomatidae) in C. melancoryphus, whereas Echinuria uncinata (Acuariidae) and Tetrameres (Petrowimeres) fissispina (Tetrameriidae) were found in the proventiculus of L. specularioides. In particular, S. legendrei was registered for the first time in South America and T. leucocephalus, whereas T. fissispina represents a new record in Argentina and L. specularioides. Moreover, E. vogelsangi and E. uncinata were isolated in Patagonia for the first time. The birds studied herein are sympatric in their distribution, and two of them are syntopic breeders; however, they were infected with different parasite species. This situation could be partially due to their diet or their seasonal movements, or a combination of both. Despite the low number of hosts examined, this work enhances our knowledge about parasites from a frequently occurring group of birds on the Patagonian coast, a subject that has not been studied extensively in South America.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stomach nematodes of three sympatric species of anatid birds off the coast of Patagonia

et al. 2015

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“…Thirteen (13) adult helminths taxa were recognized parasitizing the L. dominicanus population from Península Valdés, including cestodes, trematodes, nematodes, and acanthocephalans (Cremonte 2001, Diaz & Cremonte 2004, 2010, Diaz et al 2001, 2011, 2012. Besides, there are several isolated reports of parasites in different coastal birds, like nematodes from the Steamer Duck, Tachyeres leucocephalus Humphrey & Thompson, the Crested Duck, Lophonetta specularioides (King), the Blacknecked Swan, Cygnus melancoryphus (Molina) (Anatidae) (Agüero & Diaz 2013, Agüero et al 2015 and from the Imperial Shag P. atriceps and the Red-legged Shag Phalacrocorax gaimardii (Lesson & Garnot) (Phalacrocoracidae) (Garbin et al 2008(Garbin et al , 2014. Also, trematodes like Bartolius pierrei Cremonte, 2001 were recorded in the Red Knot Calidris canutus rufa Linnaeus (Cremonte 2004), and Maritrema formicae Diaz, Gilardoni & Cremonte 2012, Levinseniella cruzi Travassos 1921, and Odhneria odhneri Travassos, 1921 parasitizing the Baird's Sandpiper Calidris bairdii Coues (Scolopacidae) (Capasso et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Parasitological survey of coastal birds from the Magellanic coast, Southwestern Atlantic Ocean

Gilardoni

Lorenti

Díaz

et al. 2023

An. Acad. Bras. Ciênc.

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Ecto and endoparasites of four species of coastal birds, Haematopus ater, Larus dominicanus, Leucophaeus scoresbii (Charadriiformes), and Lophonetta specularioides (Anseriformes), are reported from Puerto Deseado on the Patagonian coast, Argentina. Only H. ater was infested with lice (Phthiraptera), belonging to 2 species (Ischnocera, Amblycera). A total of 19 helminth species were found parasitizing the coastal birds studied: 4 cestodes (1 Tetrabothriidae, 3 Cyclophyllidea); 11 trematodes ( 2Gymnophallidae, 3 Microphallidae, 2 Notocotylidae, 1 Philophthalmidae, 2 Renicolidae, 1 Schistosomatidae); 3 nematodes (1 Anisakidae, 2 Acuariidae); and 1 acanthocephalan (Polymorphidae). Although some isolated records have been previously reported for these birds, the present work provides a parasitofauna study for H. ater, L. scoresbii, and L. specularioides for the first time. Endoparasites reflected the feeding habits of the birds; the parasite assemblage of L. dominicanus was the richest, indicating their wide prey spectrum and the diversity of the habitats frequented. A great species richness of trematodes, whose life cycles are partially known, suggests that L. specularioides feeds upon crustaceans and small bivalves. The blackish oystercatcher H. ater preys upon the limpet Nacella magellanica which hosts two larval trematodes corresponding to the adults found parasitizing it.

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Morphology of Streptocara crassicauda and S. recta, with a Review of the Genus Streptocara (Nematoda: Acuariidae) and an Identification Key to Its Species

Mutafchiev

Georgiev

2023

Diversity

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The cosmopolitan genus Streptocara Railliet, Henry and Sisoff, 1912 (Nematoda: Acuariidae) comprises parasites of the upper alimentary tract of aquatic and, rarely, terrestrial birds. Two species of the genus Streptocara are redescribed from Bulgaria by means of light and scanning electron microscopy: Streptocara crassicauda (Creplin, 1829), based on specimens from Larus genei, Larus minutus (Laridae) and Aythya ferina (Anatidae), and Streptocara recta (von Linstow, 1879) from Podiceps nigricollis (Podicipedidae). This is the first record of S. recta from Bulgaria. The host and distribution records of the species of the genus Streptocara are reviewed. Six species are recognised as valid. Streptocara crassicauda (Creplin, 1829), S. californica (Gedoelst, 1919), S. formosensis Sugimoto, 1930 and S. incognita Gibson, 1968, seem to be parasites well-adapted to birds of the family Anatidae (Anseriformes) and occasionally found in other birds, whereas S. recta (von Linstow, 1879) and S. longispiculata Gibson, 1968, are specialists of Podicipediformes and Gaviiformes, respectively. Streptocara indica Fotedar and Chishti, 1974, is recognised as a junior synonym of S. crassicauda, and Schistogendra oligopapillata Zhang and An, 2002, is considered as a junior synonym of Streptocara formosensis Sugimoto, 1930. An identification key to the species of the genus Streptocara is proposed.

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First Record ofStreptocara formosensis(Nematoda: Acuariidae) from the Chubut Steamerduck,Tachyeres leucocephalus, Endemic to the Patagonian Coast, Southwest Atlantic

Cited by 4 publications

References 5 publications

Stomach nematodes of three sympatric species of anatid birds off the coast of Patagonia

Stomach nematodes of three sympatric species of anatid birds off the coast of Patagonia

Parasitological survey of coastal birds from the Magellanic coast, Southwestern Atlantic Ocean

Morphology of Streptocara crassicauda and S. recta, with a Review of the Genus Streptocara (Nematoda: Acuariidae) and an Identification Key to Its Species

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