Investigation of blood parasites of pygoscelid penguins at the King George and Elephant Islands, South Shetlands Archipelago, Antarctica

Vanstreels, Ralph Eric Thijl; Miranda, Flávia Regina; Ruoppolo, Valéria; Reis, Ana Olívia de Almeida; Costa, Erli Schneider; Pessoa, Adriana Rodrigues de Lira; Torres, João Paulo Machado; Cunha, Larissa Schmauder Teixeira da; Piuco, Roberta da Cruz; Valiati, Victor Hugo; González‐Acuña, Daniel; Labruna, Marcelo Bahia; Petry, Maria Virgı́nia; Epiphânio, Sabrina; Catão‐Dias, José Luiz

doi:10.1007/s00300-013-1401-x

Cited by 15 publications

(21 citation statements)

References 29 publications

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“…Haematological studies in penguins are valuable because they enable assessment of overall health, thus providing information on physiological, immunological and reproduction responses (Vleck et al 2000, Vanstreels et al 2014. Some components of the reproductive endocrine system (such as prolactin and growth hormone) are vital for growth, development, osmoregulation and reproduction, and also are promoters of phagocytosis, which all depend upon immunological status of seabirds (Poulsen and Escher 2012).…”

Section: Discussionmentioning

confidence: 99%

Assessment of persistent organic pollutants and their relationship with immunoglobulins in blood of penguin colonies from Antarctica

Jara

Celis

Araneda

et al. 2018

Austral j. vet. sci.

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ABSTRACT. Persistent organic pollutants (POPs) may affect the immune system of seabirds, and some field studies have examined this effect. There are evidences that POPs cause negative effects on the immune system, but in Antarctic penguins data are scarce. In order to assess the risks that POPs may have on wild animals, some immunological studies constitute a good alternative. Determining the levels of immunoglobulins can deliver relevant information about the potential impact of POPs in seabirds from different environments. However, there are very few records in penguins so far. The aim of the present work was to quantify the concentrations of polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), dichlorodiphenyltrichloroethane (∑DDT), endosulfans, and immunoglobulin IgY in blood samples of colonies of chinstrap penguins (Pygoscelis antarctica) that inhabit in the Antarctic Peninsula area. Analysis of POPs in blood samples was carried out through extraction with QuEChERS method, followed by gas chromatography. Detection of IgY concentrations was achieved by ELISA test, using anti-chicken antibodies. There was some significant correlation between immunoglobulin and the presence of PCBs and endosulfans. Even though the levels of these pollutants are low to cause any biological effect on the birds, the results are indicating some influence on the IgY concentrations in penguin blood.

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Section: Discussionmentioning

confidence: 99%

Assessment of persistent organic pollutants and their relationship with immunoglobulins in blood of penguin colonies from Antarctica

Jara

Celis

Araneda

et al. 2018

Austral j. vet. sci.

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“…Attempts to find evidence for avian malaria and mycoplasmosis within the Antarctic Treaty area have to date been negative (Jones and Shellam 1999a, b; References: (1) Morgan and Westbury (1988), (2) Quillfeldt et al 2010Quillfeldt et al , 2011Vanstreels et al 2014). Avian malaria is most likely absent due to the absence of mosquito vectors (Jones and Shellam 1999a, b;Huijbens et al 2007;González-Acuña et al 2013).…”

Section: Gap Assessment Of Antarctic Treaty Area Penguin Disease Studiesmentioning

confidence: 98%

Infectious diseases of Antarctic penguins: current status and future threats

et al. 2014

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“…Haemosporida are abundant in many avian families and occur worldwide except in Antarctica (Valkiūnas, 2005;Bensch et al, 2009;Clark et al, 2014;Vanstreels et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Peer Review #1 of "Blood parasites in Passeriformes in central Germany: prevalence and lineage diversity of Haemosporida (Haemoproteus, Plasmodium and Leucocytozoon) in six common songbirds (v0.1)"

2019

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Background: Avian Haemosporida are vector-borne parasites that commonly infect Passeriformes. Molecular analyses revealed a high number of different lineages and lineage specific traits like prevalence and host-specificity, but knowledge of parasite prevalence and lineage diversity in wild birds in Central Germany is still lacking. Results: Blood samples from a total of 238 adult and 122 nestling songbirds belonging to six species were investigated for infections with avian haemosporidian genera and lineages (Haemoproteus spp., Plasmodium spp., Leucocytozoon spp.) and Trypanosoma avium using PCR, targeting the parasite mitochondrial cytochrome b gene and 18S ribosomal RNA. In total, the prevalence in adult birds was 31.3% infected with Haemoproteus, 12.5% with Plasmodium and 71.0% with Leucocytozoon (nestlings excluded). None of the tested birds was infected with Trypanosoma avium. Only in two nestling birds, aged 12-17 days, a Leucocytozoon spp. infection was proven. Among 225 successfully sequenced samples, we found four Haemoproteus, three Plasmodium and 19 Leucocytozoon lineages, including two new Leucocytozoon lineages. Furthermore, we report two new host-lineage associations. Conclusions: As first study investigating avian haemosporidian parasites in Central Germany, we provide new information on genetic diversity of Haemosporida infecting Passeriformes. We show that even with a small sample size new lineages as well as previously unknown linkages between certain lineages and host species can be detected. This may help to elucidate the diversity of lineages as well as lineage-host-connections of avian Haemosporida.

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Investigation of blood parasites of pygoscelid penguins at the King George and Elephant Islands, South Shetlands Archipelago, Antarctica

Cited by 15 publications

References 29 publications

Assessment of persistent organic pollutants and their relationship with immunoglobulins in blood of penguin colonies from Antarctica

Assessment of persistent organic pollutants and their relationship with immunoglobulins in blood of penguin colonies from Antarctica

Infectious diseases of Antarctic penguins: current status and future threats

Peer Review #1 of "Blood parasites in Passeriformes in central Germany: prevalence and lineage diversity of Haemosporida (Haemoproteus, Plasmodium and Leucocytozoon) in six common songbirds (v0.1)"

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