Common sculpin Cottus gobio as a natural paratenic host of Proteocephalus longicollis (Cestoda: Proteocephalidae), a parasite of salmonids, in Europe

Moravec, F

doi:10.3354/dao045155

Cited by 11 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, Moravec (2001) suggested the possible transmission of the cestodes by ingestion of small fishes. The high intensity of infection of the parasitosis may result in decreased fish growth as supported by Scholz et al (2004) and Priemer (1987).…”

Section: Resultsmentioning

confidence: 99%

Proteocephalid cestode infection in alien fish, Cichla piquiti Kullander and Ferreira, 2006 (Osteichthyes: Cichlidae), from Volta Grande reservoir, Minas Gerais, Brazil

et al. 2009

View full text Add to dashboard Cite

This work evaluates the variation of the parasitological indexes in 114 Cichla piquiti Kullander and Ferreira, 2006 (tucunaré) infected by two proteocephalid species (Cestoda) for the period of August 1999 to June 2001 in the Volta Grande reservoir, MG, Brazil. The relation between the parasitosis with rainfall and water quality (pH, electric conductivity, oxygen, chlorophyll, transparency and temperature) is discussed. Prevalence of Proteocephalus macrophallus (Diesing, 1850) and/or P. microscopicus (Woodland, 1935) Abiotic factors may favour the development of the species of the food chain that sustain the organisms in the diet of " tucunaré", but in this case, there was no correlation (P > 0.05) between the values of prevalence, mean intensity and mean abundance with the rainfall and water quality. At the same time, these organisms may constitute the intermediate hosts of cestodes. The time-course between the fish species development and the parasitosis manifestation in the definitive host can explain the lack of correlation between the parasitological indexes and abiotic factors. The predation on small fishes and cannibalism described for "tucunaré" might explain the high values of prevalence and intensity of infection. The results are also related to the exotic condition of the host in the reservoir.Keywords: Tucunare, alien fish, parasitism, Proteocephalidae, hydroelectric reservoir. Infecção por cestóides proteocefalídeos em peixe introduzido,Cichla piquiti (Osteichthyes: Cichlidae), no reservatório de Volta Grande, Minas Gerais, Brasil ResumoEste estudo avalia a variação nos índices parasitológicos de 114 espécimes de Cichla piquiti Kullander e Ferreira, 2006 (tucunaré) infectados por duas espécies de proteocefalídeos (Cestoda) entre agosto de 1999 e junho de 2001 no reservatório de Volta Grande, MG, Brasil. A relação entre a parasitose e os valores de pluviosidade e qualidade de água (pH, condutividade elétrica, oxigênio, clorofila, transparência e temperatura) é discutida. A prevalência de Proteocephalus macrophallus (Diesing, 1850) e/ou P. microscopicus (Woodland, 1935) foi 83,3%, intensidade média 110,8 e abundância média 100,7 durante todo o período. Prevalência de 100% foi observada em agosto e dezembro de 1999, abril e dezembro de 2000 e junho de 2001. As maiores intensidades médias foram 122,7 em outubro de 1999; 158,8 em dezembro de 1999; 96,4 em fevereiro de 2000; 400,7 em abril de 2000; 215,6 em outubro de 2000; e 136,4 em dezembro de 2000. Fatores abióticos podem favorecer o desenvolvimento de espécies que sustentam a alimentação do "tucunaré", mas, neste caso, não houve correlação (P > 0,05) entre os valores de prevalência, intensidade média e abundância média com a pluviosidade e qualidade de água no reservatório. Ao mesmo tempo, estes organismos podem constituir hospedeiros intermediários de cestóides. A relação entre o desenvolvimento da espécie hospedeira e Martins, ML. et al. 190 Braz. J. Biol., 69(1): [189][190][191][192][193][194][195] 2009 1993; Moravec, 2001). Scho...

show abstract

Section: Resultsmentioning

confidence: 99%

Proteocephalid cestode infection in alien fish, Cichla piquiti Kullander and Ferreira, 2006 (Osteichthyes: Cichlidae), from Volta Grande reservoir, Minas Gerais, Brazil

et al. 2009

View full text Add to dashboard Cite

show abstract

“…This can be attributed to the favourable characteristics of water in the lake studied, such as temperature, aeration or the absence of pollutants, which may support copepod populations (Hanzelová and Gerdeaux, 2003). The life cycle of P. longicollis can also include paratenic hosts, which are reservoirs of the parasite and a source of infection for larger predatory fish (Scholz, 1999;Moravec, 2001). Such a role in Lake Baikal is played by fish of the Cottidae family (Rusinek and Pronin, 1991).…”

Section: Discussionmentioning

confidence: 99%

“…Lake Hańcza is a specific ecosystem; with fish species typical of cold waters of the north and mountain streams, including the burbot Lota lota and bullheads Cottus gobio and C. poecilopus (Wziątek and Poczyczyński, 2008). The European bullhead is regarded as the paratenic host for this tapeworm in Europe (Moravec, 2001). Juvenile and adult tapeworms of the genus Proteocephallus can also be transmitted horizontally through the cannibalism of fish hosts.…”

Section: Discussionmentioning

confidence: 99%

Helminths of European smelt Osmerus eperlanus (Linnaeus, 1758) in Lake Hańcza and the Vistula Lagoon, with special regard to their zoonotic threats

Dziekońska-Rynko

Mierzejewska²,

Kubiak³

et al. 2018

Acta Veterinaria Hungarica

View full text Add to dashboard Cite

Reports published in recent years on the increased risk in the Baltic Sea of fish infection with larvae of nematodes potentially pathogenic to humans have prompted a study of European smelt Osmerus eperlanus with respect to the presence of these parasites in the Vistula Lagoon. Additionally, samples of this fish from Lake Hańcza were comparatively considered. The body cavity, the surface of internal organs, the alimentary tract and the swimbladder of fish from two environmentally different water bodies were taken into account in the analysis. Only the tapeworm Proteocephalus longicollis was found in the alimentary tract of the fish from Lake Hańcza. Depending on the period of study, the prevalence ranged from 60% to 100%, and the mean intensity from 11.5 to 42.0. The helminth fauna of smelt from the Vistula Lagoon was more diverse: Cystidicola farionis occurred with a prevalence from 25.9 to 75.0% and a mean intensity of infection from 2.7 to 66.0%, Proteocephalus longicollis and cystacanths of Corynosoma with a prevalence ranging in different years from 12.0 to 44.0% and from 14.8 to 50.0%, respectively. Zoonotic parasites, such as nematode larvae of the Anisakidae family (Contracaecum sp., Anisakis simplex), occurred in the intestine with a prevalence of 31%, 72% and 22% in consecutive years of the study.

show abstract

“…The present data show that S. cotti is now well‐established in the River Utsjoki and suggest that it is a natural parasite of C. gobio . Despite biological and parasitological studies on C. gobio elsewhere, S. cotti has not been reported in more southern latitudes (Andreasson, 1971; Moravec, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…This link was provided with the accidental introduction, successful establishment and spread of C. gobio in the river (Pihlaja et al, 1998). Schistocephalus cotti may have been introduced as plerocercoids within the body cavity of C. gobio, or the cestode eggs may have been defecated into the river system by aquatic birds Despite biological and parasitological studies on C. gobio elsewhere, S. cotti has not been reported in more southern latitudes (Andreasson, 1971;Moravec, 2000). The L T range of C. gobio in the River Utsjoki was greater than that reported by Smyly (1957) in England, where the maximum was 81 mm, although a little smaller than the maximum known elsewhere (exceptionally to 120 mm).…”

Section: Discussionmentioning

confidence: 99%

Introduced bullheads Cottus gobio and infection with plerocercoids of Schistocephalus cotti in the Utsjoki, an Arctic river in Finland

Seppälä

Chubb

Niemelä

et al. 2007

Journal of Fish Biology

View full text Add to dashboard Cite

Bullheads Cottus gobio, first found in the River Utsjoki, an Arctic river in Finland, in 1979, were sampled at six sites in August 1991 (two of these sites were also sampled previously in June and July 1991). Mean total length (LT) of C. gobio was 45 mm (n= 1080 fish). Overall, there were slightly more females than males, with males larger than females (mean LT males 52·1 and females 47·6 mm). Prevalence of infection with plerocercoids of Schistocephalus cotti varied from 20·0 to 43·0% over the six sites in August. Juvenile C. gobio had a prevalence of infection of 3·5% whereas in mature fish prevalence was consistently higher in females than in males (38·8 v. 20·1%). There was one plerocercoid per infected juvenile C. gobio. In mature fish the mean number varied between 1·3 and 1·8: 49% had one worm per fish, 38% two or three worms and 13% had four to eight plerocercoids. In juvenile C. gobio, S. cotti were randomly distributed (overdispersion index 1·10), whereas occurrence was slightly aggregated in the LT groups 40–59 and ≥60 mm (overdispersion indices both 1·90). Mean mass of infected fish was higher in all LT groups compared to uninfected C. gobio. After removal of plerocercoids, mean mass of fish tissue remaining was lower compared with uninfected fish for the two LT groups 40–59 and ≥ 60 mm, but higher in C. gobio <40 mm LT. Prevalence and mean intensity of infection over the 3 months did not differ either for the two sites individually or the pooled data. Mean mass of both uninfected and infected fish increased over this period, and were both highest in August as was the mean worm burden. There was, however, no difference in Fulton’s condition factor at any time. Mean mass of plerocercoids in C. gobio of ≥40 mm LT increased significantly comparing June and July with August. Comparison of backcalculated LT of infected and non‐infected bullheads of different age‐groups did not show any significant differences in growth at any age. In each parasite infrapopulation as the number of worms increased so their mean mass decreased significantly but at the same time the total mass of worms in the fish host remained more or less constant in relation to length. Aggregation of parasites in the fish population was low, as the majority were infected by one S. cotti plerocercoid. Gonad development was suppressed in infected C. gobio.

show abstract

Common sculpin Cottus gobio as a natural paratenic host of Proteocephalus longicollis (Cestoda: Proteocephalidae), a parasite of salmonids, in Europe

Cited by 11 publications

References 7 publications

Proteocephalid cestode infection in alien fish, Cichla piquiti Kullander and Ferreira, 2006 (Osteichthyes: Cichlidae), from Volta Grande reservoir, Minas Gerais, Brazil

Proteocephalid cestode infection in alien fish, Cichla piquiti Kullander and Ferreira, 2006 (Osteichthyes: Cichlidae), from Volta Grande reservoir, Minas Gerais, Brazil

Helminths of European smelt Osmerus eperlanus (Linnaeus, 1758) in Lake Hańcza and the Vistula Lagoon, with special regard to their zoonotic threats

Introduced bullheads Cottus gobio and infection with plerocercoids of Schistocephalus cotti in the Utsjoki, an Arctic river in Finland

Contact Info

Product

Resources

About