First report of Artystone trysibia (Isopoda: Cymothoidae) in Caquetaia spectabilis (Cichliformes: Cichlidae)

Oliveira, Marcos Sidney Brito; Esteves-Silva, Pedro Hugo; Andrade, Marcelo C.; Tavares‐Dias, Marcos

doi:10.1590/s1984-29612019030

Cited by 2 publications

(6 citation statements)

References 8 publications

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“…in the hosts C. luteofrenatus and H. chromodontus did not differ statistically, which is because they are similar species anatomically and morphologically and use the environment and food resources in a similar way ( Casatti, 2002 ). The prevalence values we found are difficult to compare with other studies on burrowing cymothoids (e.g., Rosa et al (2020) revealed a prevalence of 0.214 % of A. minima , and Oliveira et al (2019) demonstrated a prevalence of 6.94 % of A. trysibia ), because our result is the product of 12 consecutive months of sampling. When evaluated monthly, the prevalence of Artystone sp.…”

Section: Discussioncontrasting

confidence: 81%

“…For example, in tropical regions, the burrowing cymothoid Artystone spp. has been reported to parasitize fish species such as Moenkhausia collettii (Steindachner 1882), Acestrorhynchus falcatus (Bloch 1794), Hyphessobrycon heliacus Moreira, Landim & Costa 2002, Hyphessobrycon vilmae Géry 1966, and Crenicichla semicincta Steindachner 1892 ( Luque et al, 2013 ; Junoy, 2016 ; Oliveira et al, 2019 ; Rosa et al, 2020 ). In the present study, we found that Artystone sp.…”

Section: Discussionmentioning

confidence: 99%

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Effect of burrowing cymothoid parasitism on loricariids

Silva

Colaço-Fernandes²,

Costa³

et al. 2021

International Journal for Parasitology: Parasites and Wildlife

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Cymothoids belong to the order Isopoda and are ectoparasites of fishes, and their main parasitism strategies are by penetrating, burrowing, and lodging in the abdominal cavity of the hosts. Due to this complex parasitism strategy, they are considered highly host-specific parasites. We investigated the effects of parasitism of the burrowing cymothoid Artystone sp. on the loricarids Hisonotus chromodontus and Curculionichthys luteofrenatus in the Selma stream, a tributary of the Teles Pires river, Southern Amazon. The hypothesis under study is that parasitism causes negative effects on the feeding, reproduction, and length-weight relationship of the hosts. The presence of alternative hosts was also investigated. The parasitic interaction of Artystone sp. with Curculionichthys luteofrenatus and Hisonotus chromodontus was monitored for one year with standardized monthly collections, and was found to be highly specific when there were no other parasitized fish species. Parasitic castration caused by Artystone sp. occurred in Curculionichthys luteofrenatus and Hisonotus chromodontus hosts, and there was a higher prevalence of infestation in females. The weight-length relationship was lower in parasitized Hisonotus chromodontus hosts, indicating a negative effect on somatic increment, although all hosts had fully replete stomachs and gastrointestinal tracts. The greatest standard-length values for both species were observed in the parasitized hosts. The presence of parasitized young specimens with undifferentiated sex and immature males and females suggests that the parasitic interaction in both species starts at a young age.

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Section: Discussioncontrasting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Effect of burrowing cymothoid parasitism on loricariids

Silva

Colaço-Fernandes²,

Costa³

et al. 2021

International Journal for Parasitology: Parasites and Wildlife

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“…Encapsulation in the host integument as the means of attachment is characteristic of Artystone and Riggia (Thatcher et al, 2003;Junoy, 2016;Oliveira et al, 2019) and can be considered to be a host-parasite specific characteristic (Tsai & Dai 1999;Yamano et al, 2011;Hata et al, 2017). Data in the literature show that species are generalists, parasitizing fish species of the families Anostomidae, Ariidae, Characidae, Cichlidae, Heptapteridae, Loricariidae and Pimelodidae (Junoy, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Data in the literature show that species are generalists, parasitizing fish species of the families Anostomidae, Ariidae, Characidae, Cichlidae, Heptapteridae, Loricariidae and Pimelodidae (Junoy, 2016). However, in the Brazilian Amazon region, the Artystone species that was observed can be considered to be a specialist because it was found parasitizing only Cichlidae fish (Oliveira et al, 2019). Studies on integrative, comparative and molecular biology may be the approach that should be followed in order to understand these complex interactions.…”

Section: Discussionmentioning

confidence: 99%

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Isopods Cymothoidae ectoparasites of fish from the Amazon

Virgilio

Oliveira

Almeida

et al. 2020

Rev. Bras. Parasitol. Vet.

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Most freshwater species of Cymothoidae are distributed in South America. They have mainly been recorded in the eastern and western regions of the Amazon River basin. However, in this ecosystem, the biodiversity of this group may be greater if the entire Amazon basin is considered. In this regard, the aim of the present study was to provide an updated list of isopod species of the family Cymothoidae that are found in fish in the Brazilian Amazon region and to report on new fish host occurrences and expanded geographical distributions for cymothoid isopods that parasitize fish in the southwestern Brazilian Amazon region. The parasites found in fish specimens were collected, fixed and identified later. We found eight species of Cymothoidae parasitizing different host fish species in the southwestern Amazon region. However, we found 14 species of Cymothoidae throughout the Brazilian Amazon region. Three additional species are thus reported here, which increases the number of species of Cymothoidae in this region to 17. These additional species are also new records for Brazil. Therefore, this study has contribute to expand the knowledge about the distribution and diversity of Cymothoidae in the Amazon basin.

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First report of Artystone trysibia (Isopoda: Cymothoidae) in Caquetaia spectabilis (Cichliformes: Cichlidae)

Cited by 2 publications

References 8 publications

Effect of burrowing cymothoid parasitism on loricariids

Effect of burrowing cymothoid parasitism on loricariids

Isopods Cymothoidae ectoparasites of fish from the Amazon

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