Structure of component parasite communities in the grayling, Thymallus thymallus L. (Salmoniformes, Thymallidae), and minnow, Phoxinus phoxinus L. (Cypriniformes, Cyprinidae), from the upper reaches of the Pechora River

Dorovskikh, G. N.; Степанов, В. Г.

doi:10.1134/s1062359009030108

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…Both larvae stage and adults are present in the stomach and sometimes occur in large quantities. C. ephemeridarum was recorded in the grayling stomachs (6,8,10,15,17,18). There is no description, in the available literature, of histopathological changes in the stomach wall of the European grayling as a result of the presence of the C. ephemeridarum.…”

Section: Praca Oryginalnamentioning

confidence: 96%

Histopathological changes in the stomach wall of the European grayling Thymallus thymallus associated with severe infection by the nematode Cystidicoloides ephemeridarum

Kulikowski¹,

Sołtysiak²,

Rokicki³

2017

Medycyna Weterynaryjna

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Section: Praca Oryginalnamentioning

confidence: 96%

Histopathological changes in the stomach wall of the European grayling Thymallus thymallus associated with severe infection by the nematode Cystidicoloides ephemeridarum

Kulikowski¹,

Sołtysiak²,

Rokicki³

2017

Medycyna Weterynaryjna

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“…In the inland waters of Turkey, this order is represented by 278 species according to Çiçek, Sungur, and Fricke (2020). Ecology of parasites of the order Cypriniformes has been the center of an increasing attention for two decades (Dorovskikh & Stepanov, 2009;Soylu, Uzmanoğlu, Çolak, & Soylu, 2017;Gabagambi & Skorping, 2018;Czerniejewski, Rybczyk, Linowska, & Sobecka, 2019).…”

Section: Introductionmentioning

confidence: 99%

Detection of Ectoparasite Lernaea cyprinacea (Copepoda: Lernaeidae) on some Cypriniformes Fish from the Mediterranean Region of Turkey

İnnal

2020

Commagene Journal of Biology

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Lernaea cyprinacea L.,1758 is a lernaeid copepod species usually known as anchor worm. It is usually reported as having a wide range of host susceptibility. Parasites belonging to the genus Lernaea can have serious deleterious effects on their freshwater fish hosts. Parasites belonging to the genus Lernaea, it has been reported from several host fish species to date in Turkey. Mediterranean region of Turkey supports a rich diversity of Cypriniformes fish fauna, with a high percentage of endemic species. This study reports the infection of L. cyprinacea on some native and alien Cypriniformes fish in the Mediterranean region of Turkey. Barbus xanthos, Alburnus baliki, Pseudophoxinus zekayi and Pseudorasbora parva were found as new host records for L. cyprinacea.

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“…The species is listed as protected in Appendix II of the Bern convention (Swatdipong, Primmer, & Vasemägi, ), and UK populations are considered endangered (Dawnay, Dawnay, Hughes, Cove, & Taylor, ). A number of pathogens and parasites are known to infect grayling (Dorovskikh & Stepanov, ; Pylkkö, Suomalainen, Tiirola, & Valtonen, ), likely imposing selection pressures on natural populations. There are also emerging threats to grayling such as proliferative kidney disease (Wahli et al.…”

Section: Introductionmentioning

confidence: 99%

Neutral variation does not predict immunogenetic variation in the European grayling (Thymallus thymallus)—implications for management

et al. 2018

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Preservation of genetic diversity is critical to successful conservation, and there is increasing demand for the inclusion of ecologically meaningful genetic information in management decisions. Supportive breeding programmes are increasingly implemented to combat declines in many species, yet their effect on adaptive genetic variation is understudied. This is despite the fact that supportive breeding may interfere with natural evolutionary processes. Here, we assessed the performance of neutral and adaptive markers (major histocompatibility complex; MHC) to inform management of European grayling (Thymallus thymallus), which routinely involves supplementation of natural populations with hatchery-reared fish (stocking). This study is the first to characterize MH II DAA and DAB loci in grayling and to investigate immune genetic variation in relation to management practice in this species. High-throughput Illumina sequencing of "introduced," "stocked native" and "non-stocked native" populations revealed significantly higher levels of allelic richness and heterozygosity for MH markers than microsatellites exclusively in non-stocked native populations. Likewise, significantly lower differentiation at the MH II than for microsatellites was apparent when considering non-stocked native populations, but not stocked populations. We developed a simulation model to test the effects of relaxation of selection during the early life stage within captivity. Dependent on the census population size and stocking intensity, there may be long-term effects of stocking on MH II, but not neutral genetic diversity. This is consistent with our empirical results. This study highlights the necessity for considering adaptive genetic variation in conservation decisions and raises concerns about the efficiency of stocking as a management practice.

show abstract

Structure of component parasite communities in the grayling, Thymallus thymallus L. (Salmoniformes, Thymallidae), and minnow, Phoxinus phoxinus L. (Cypriniformes, Cyprinidae), from the upper reaches of the Pechora River

Cited by 5 publications

References 2 publications

Histopathological changes in the stomach wall of the European grayling Thymallus thymallus associated with severe infection by the nematode Cystidicoloides ephemeridarum

Histopathological changes in the stomach wall of the European grayling Thymallus thymallus associated with severe infection by the nematode Cystidicoloides ephemeridarum

Detection of Ectoparasite Lernaea cyprinacea (Copepoda: Lernaeidae) on some Cypriniformes Fish from the Mediterranean Region of Turkey

Neutral variation does not predict immunogenetic variation in the European grayling (Thymallus thymallus)—implications for management

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