Seasonal occurrence and maturation of<i>Neoechinorhynchus rutili</i>(Acanthocephala) in barbel,<i>Barbus barbus</i>(Pisces), of the Jihlava River , Czech Republic

Moravec, František; Scholz, Tomáš

doi:10.1051/parasite/1994013271

Cited by 11 publications

(8 citation statements)

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“…Seasonal aspects in the transmission were reported for various aquatic parasites, with climate conditions playing the decisive role. Moravec & Scholz [ 11 ] observed seasonality in the occurrence and maturation of the acanthocephalan Neoechinorhynchus rutili in barbel. Interestingly, the seasonal pattern was in accordance with that observed for P. laevis in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…The development of some fish acanthocephalans, especially the palaeacanthocephalans, is also characterised by typical annual infection patterns of intermediate and definitive hosts [ 8 ]. These patterns can be related to water temperature changes and are, therefore, season and climate dependent [ 9 – 11 ]. Moreover, the lifespan of most fish acanthocephalans in the intestine of the definitive host (in which metal uptake of the parasites occurs) does usually not exceed a period of some months [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Seasonal profile of metal accumulation in the acanthocephalan Pomphorhynchus laevis: a valuable tool to study infection dynamics and implications for metal monitoring

Nachev

Sures

2016

Parasites Vectors

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BackgroundA large number of studies demonstrated that acanthocephalans exhibit a high metal accumulation potential and thus can be used as sensitive accumulation indicators. However, similar to free-living bioindicators, a seasonal variation in metal concentrations in parasites might occur. Accordingly, the influence of seasonality has to be elucidated if parasites should be applied as sentinels.MethodsIn order to assess a possible seasonal profile of element concentrations, the concentrations of As, Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, V and Zn in the acanthocephalan Pomphorhynchus laevis and in its host barbel (Barbus barbus) were analysed in a seasonal manner (spring, summer and autumn) using inductively coupled plasma mass spectrometry (ICP-MS).ResultsFive elements (As, Cd, Cu, Pb and Zn) were detected in significantly higher concentrations in the parasites compared to host muscle, intestine and liver. Their levels in P. laevis showed a clear seasonal pattern, while the concentrations in the fish tissues remained similar during the year. The highest concentrations in the parasites were found in autumn, followed by spring and summer. Evidence from the literature suggests that this profile coincides with the seasonality of acanthocephalan transmission, as their annual concentration profile reflected the mean individual weight pattern during the year. Parasite infrapopulations in autumn consisted mainly of young worms which are characterised by an accelerated metabolism and a higher surface to volume ratio resulting in higher element concentrations when compared to older worms which are assumed to slow down their metabolism and additionally excrete metals with their eggs.ConclusionsBased on the available data from the present study and literature, a model is suggested, which visualises the accumulation kinetic of several elements under natural conditions. According to the element accumulation data the lifespan of P. laevis in barbel was roughly estimated to range between six and eight months.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Seasonal profile of metal accumulation in the acanthocephalan Pomphorhynchus laevis: a valuable tool to study infection dynamics and implications for metal monitoring

Nachev

Sures

2016

Parasites Vectors

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“…The following species were reported: monogeneans Dactylogyrus carpathicus, D. malleus (see Grabda-Kazubska and Pilecka-Rapacz 1987), Diplozoon paradoxum, Gyrodactylus sp. (see Malanowski 1951, Ergens 1976, the leech Cystobranchus respirans (see Bielecki et al 2011), glochidia larvae of the bivalve Sinanodonta woodiana (see Douda et al 2012), the intestinal fluke Aspidogaster limacoides (see Schludermann et al 2005), intestinal cestodes Caryophyllaeus brachycollis, C. laticeps, Khawia baltica, acanthocephalans Acanthocephalus lucii, Pomphorhynchus laevis (see Djikanovic et al 2010), Neoechinorhynchus rutili (see Moravec and Scholz 1994), Acanthocephalus anguillae (see Herlyn and Ehlers 2001), and the microsporean Pleistophora longifilis (see Bauer 1984). In the presently reported study, only one intramuscular parasite (Myxobolus musculi) was noted in the juvenile B. barbus specimen.…”

Section: Discussionmentioning

confidence: 99%

Three new records of fishes and their parasite fauna from Pomeranian Bay, Baltic Sea

Więcaszek¹,

Sobecka²,

Keszka³

et al. 2019

Acta Ichthyol. Piscat.

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This paper reports the occurrence of three new fish species, extremely rare in the Baltic Sea, and provides new data on their parasite fauna. The fish collected were Barbus barbus (Linnaeus, 1758), Salvelinus fontinalis (Mitchill, 1814), and Scophthalmus rhombus (Linnaeus, 1758). Their taxonomic identity was confirmed through genetic analyses using DNA extracted from fin clips. The stomach contents were examined, and age was determined by otolith or scale readings. Parasitological examinations focused on the skin, vitreous humour, eye lenses, mouth and nasal cavities, gills, gonads, viscera, and muscles. Furthermore, the changes of fish species composition over 20 years in Pomeranian Bay were analysed. The sequence comparisons against GenBank records revealed that sequences obtained for B. barbus and S. rhombus from Pomeranian Bay represent new rhodopsin barcodes. Record of the juvenile B. barbus in this study is the first in the Baltic Sea. Scophthalmus rhombus is a new host for the ciliate Trichodina jadranica, while Neogobius melanostomus (Pallas, 1814) is a new food item in the diet of S. rhombus in the Baltic Sea. Acanthocephalan Pomphorhynchus laevis found in the adult specimen of B. barbus and myxozoan Myxobolus musculi, noted in the juvenile specimen, have not been recorded previously in this fish species in Polish waters. Species collected as bycatch can potentially be used for monitoring potential changes in the overall fish community structure and biodiversity.

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“…As pointed out by Kennedy (2006), there are many different aspects worth to be addressed when writing about acanthocephalan population dynamics. These patterns can be related to water temperature changes and are therefore season and climate dependent (Moravec 1984, Kennedy 1985, Moravec & Scholz 1994. Information concerning seasonal patterns in the occurrence and development of acanthocephalans is mainly available for fish acanthocephalans (Kennedy 2006) for which a detailed review was presented by Chubb (1982).…”

Section: Population Ecologymentioning

confidence: 99%

7. Ecology of the Acanthocephala

Sures¹

2014

Gastrotricha and Gnathifera

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Seasonal occurrence and maturation ofNeoechinorhynchus rutili(Acanthocephala) in barbel,Barbus barbus(Pisces), of the Jihlava River , Czech Republic

Abstract: rutili appears to be induced principally by the temperature regimen in the locality. N. rutili cystacanths were recovered from larval Sialis lutaria (Megaloptera) (prevalence 6%).

Cited by 11 publications

References 4 publications

Seasonal profile of metal accumulation in the acanthocephalan Pomphorhynchus laevis: a valuable tool to study infection dynamics and implications for metal monitoring

Seasonal profile of metal accumulation in the acanthocephalan Pomphorhynchus laevis: a valuable tool to study infection dynamics and implications for metal monitoring

Three new records of fishes and their parasite fauna from Pomeranian Bay, Baltic Sea

7. Ecology of the Acanthocephala

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