Gastrointestinal helminth fauna and helminth communities of bleak (Alburnus alburnus, L. 1758) from lower section of Danube River

The present study presents the results from examinations of bleak’s endohelminth species and structure of helminth communities from the Bulgarian part of the Lower Danube River. In 2015 and 2016, on a seasonal manner, 91 specimens of Alburnus alburnus (Linnaeus, 1758) (bleak) were examined with standard techniques for parasites. Five species of parasites: Nicolla skrjabini (Ivanitzky, 1928), Ligula intestinalis (Linnaeus, 1758), Acanthocephalus lucii (Müller, 1776), Pomphorhynchus laevis (Müller, 1776) and Contracoecum microcephalum (Stossich, 1890), larvae were identified. The analysis of the dominant structure of the found parasite species is presented to the component and infracommunities levels. All parasite species were accidental for the parasitic communities of examined fish with the exception of P. laevis and N. skrjabini. P. laevis was a core parasite species and N. skrjabini was a component parasite species for the helminth communities of bleak. The parasite communities of A. alburnus were discussed and compared with previous research data on parasite communities of bleak from River Danube in Bulgaria. New data for helminths and helminth communities of A. alburnus from Danube River (biotope Vetren) and their seasonal occurrence are presented.

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Helminth parasite communities of kangaroos and wallabies (Macropus spp. and Wallabia bicolor) from north and central Queensland

Australian Journal of Zoology ◽

10.1071/zo98052 ◽

1998 ◽

Vol 46 (5) ◽

pp. 473 ◽

Cited By ~ 32

Author(s):

I. Beveridge ◽

N. B. Chilton ◽

P. M. Johnson ◽

L. R. Smales ◽

R. Speare ◽

...

Keyword(s):

Host Species ◽

Helminth Species ◽

Helminth Parasites ◽

Parasite Communities ◽

Gastrointestinal Helminth ◽

Helminth Communities ◽

Digenetic Trematodes ◽

Single Host ◽

Wallabia Bicolor ◽

High Level

The occurrence of gastrointestinal helminth parasites in 40 Macropus agilis, 12 M. antilopinus, 39 M. dorsalis, 28 M. giganteus, 29 M. parryi, 30 M. robustus and 26 Wallabia bicolor from north and central Queensland was examined. A total of 124 morphologically defined species of helminth was encountered, comprising 103 species of strongyloid nematodes, 6 species of trichostrongyloid nematodes, 2 species of spiruroid nematodes, 4 species of oxyuroid nematodes, 7 species of anoplocephalid cestodes and 2 species of digenetic trematodes. Helminth communities in each macropodid host species exhibited a high level of diversity, and were dominated numerically by strongyloid nematodes. A high proportion of the helminth species was restricted to a single host species and there was a low level of similarity between helminth communities in different host species. Similarities that did occur were not apparently related to the phylogenetic relationships between hosts and are best explained by host switching between hosts sharing overlapping habitats and feeding preferences. There was poor separation of the helminth species into ‘core’, ‘secondary’ and ‘satellite’ members of communities.

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Richness and diversity of parasite communities in European eels Anguilla anguilla of the River Rhine, Germany, with special reference to helminth parasites

Parasitology ◽

10.1017/s0031182099004655 ◽

1999 ◽

Vol 119 (3) ◽

pp. 323-330 ◽

Cited By ~ 42

Author(s):

B. SURES ◽

K. KNOPF ◽

J. WÜRTZ ◽

J. HIRT

Keyword(s):

Parasite Species ◽

Sampling Site ◽

Anguilla Anguilla ◽

Single Species ◽

River Rhine ◽

Helminth Parasites ◽

Parasite Communities ◽

Acanthocephalus Lucii ◽

High Dominance ◽

First Time

A total of 121 European eels (Anguilla anguilla) from 2 sampling sites on the River Rhine were investigated in respect of their parasite communities. Special attention was given to the swim bladders, intestines, gills and fins of the fish. Twelve different parasite species were found to live in and on the eels. Data from each sampling site were kept separate. Parasites found in descending order of prevalence were: Anguillicola crassus, Trypanosoma granulosum, Myxobolus sp., Paratenuisentis ambiguus, Pseudodactylogyrus sp., Bothriocephalus claviceps, Myxidium giardi, Pomphorhynchus laevis, Trichodina sp., Raphidascaris acus, Acanthocephalus lucii and Acanthocephalus anguillae. Significantly different prevalences were reported for L3 larvae of A. crassus, adult P. ambiguus, B. claviceps and Myxobolus sp. at the 2 sampling sites. The highest number of parasite species was recorded from the intestine, which contained up to 6 different helminths. The coexistence of the acanthocephalans P. laevis and P. ambiguus, which showed clear patterns of distribution within the intestine of the respective hosts, was reported for the first time. Up to 3 different helminth species were found in the intestine of individual fish. Among those, acanthocephalans were the most prevalent worms with the eel-specific parasite P. ambiguus as the dominant species not only of the intestinal but also of the total component communities. Both infra and component communities exhibited low diversity and were dominated by this single species. The evenness reached only approximately 50% or less and it remained unclear why the helminth communities of the eels from the River Rhine with its huge catchment area exhibit such a low parasite diversity and high dominance.

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Gastrointestinal helminth communities of the blackspot seabream Pagellus bogaraveo (Teleostei: Sparidae) from Portuguese north-east Atlantic waters

Journal of Helminthology ◽

10.1017/s0022149x1200079x ◽

2012 ◽

Vol 88 (2) ◽

pp. 129-138 ◽

Cited By ~ 4

Author(s):

M. Hermida ◽

C. Cruz ◽

A. Saraiva

Keyword(s):

Parasite Species ◽

Helminth Community ◽

Intermediate Hosts ◽

East Atlantic ◽

North East ◽

Gastrointestinal Helminth ◽

Helminth Communities ◽

Functional Richness ◽

Single Host ◽

Pagellus Bogaraveo

AbstractA study was carried out on the gastrointestinal helminth communities of blackspot seabream, Pagellus bogaraveo, from the Portuguese mainland and island waters. Fifteen helminth parasite species were detected, including the following new records in this host: the digeneans Accacladocoelium petasiporum, Brachyenteron helicoleni,Glomericirrus macrouri, Lecithocladium excisum, Lepocreadium album and Pachycreadium carnosum; the nematode Camallanus sp. and the acanthocephalan Rhadinorhynchus pristis. Infection levels were generally low. Samples from mainland waters had a significantly higher prevalence of digeneans than those from the islands, probably due to the greater availability of invertebrate intermediate hosts on the continental slope. The helminth community of P. bogaraveo from Azores was diverse but mostly composed of species that infected no more than a single host, whereas in Madeira the helminth community was very depauperate. Most helminth species exhibited niche preferences within the gastrointestinal tract of the host. Higher functional richness and evenness were obtained in helminth communities of P. bogaraveo from mainland waters, indicating a balanced use of available resources, which is suggestive of more stable gastrointestinal helminth communities in these waters.

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Communities of metazoan parasites of two fishes of the Proterorhinus genus (Actinopterygii: Gobiidae)

Helminthologia ◽

10.2478/s11687-009-0032-9 ◽

2009 ◽

Vol 46 (3) ◽

pp. 168-176 ◽

Cited By ~ 10

Author(s):

Yuriy Kvach ◽

Mehmet Oğuz

Keyword(s):

Parasite Species ◽

The Black Sea ◽

Intermediate Hosts ◽

Great Tendency ◽

Component Community ◽

Metazoan Parasites ◽

Parasite Communities ◽

Marine Parasite ◽

Nicolla Skrjabini

AbstractMetazoan parasite communities of two gobiids, Proterorhinus marmoratus and P. semilunaris, which are common small-sized fishes native for the Black Sea basin, were studied. The parasite component community of P. marmoratus is represented by 11 species (one monogenean, one cestode, five digeneans, two nematodes, and two acanthocephalans). P. semilunaris had 5 species (one monogenean, one cestode, one digenean, one nematode, and one acanthocephalan). Acanthocephaloides propinquus has a great tendency to join the infracommunity. The differences between the parasite component communities of two Proterorhinus gobies are explained by different quality of habitats and available intermediate hosts. The component community of parasites of P. marmoratus is formed by brackish-water and marine parasite species, and that of P. semilunaris consists of limnetic parasite species. The euryhaline G. proterorhini is the only parasite species found in both P. marmoratus and P. semilunaris. In both species of gobiids, the main abundant parasite species (A. propinquus in P. marmoratus and Nicolla skrjabini in P. semilunaris) infest the host by feeding on crustaceans.

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The helminth community of the skink Chalcides sexlineatus from Gran Canaria (Canary Islands)

Journal of Helminthology ◽

10.1017/s0022149x11000344 ◽

2011 ◽

Vol 86 (2) ◽

pp. 237-240 ◽

Cited By ~ 1

Author(s):

V. Roca ◽

M.A. Carretero ◽

F. Jorge ◽

A. Perera ◽

A. Ferrero ◽

...

Keyword(s):

Species Richness ◽

Species Diversity ◽

Canary Islands ◽

Parasite Species ◽

Intestinal Parasites ◽

Helminth Community ◽

Gran Canaria ◽

Species Richness And Diversity ◽

Gastrointestinal Helminth ◽

Helminth Communities

AbstractA survey of the gastrointestinal helminth communities of a population of Chalcides sexlineatus Steindachner, a small skink endemic to Gran Canaria island (Canary Archipelago, Spain), was conducted to determine the prevalence, abundance and species diversity of intestinal parasites in these reptiles. Only three parasite species were found, one cestode, Oochoristica agamae Baylis, 1919 and two nematodes, Parapharyngodon micipsae (Seurat, 1917) and Pharyngodonidae gen. sp. Helminth infracommunities of C. sexlineatus showed low values of abundance and species richness and diversity, being more similar to the helminth community of Tarentola boettgeri boettgeri (Steindachner) rather than those of Gallotia stehlini (Schenkel), both syntopic with the sampled host.

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Latitudinal gradient in the taxonomic composition of parasite communities

Journal of Helminthology ◽

10.1017/s0022149x10000696 ◽

2010 ◽

Vol 85 (3) ◽

pp. 228-233 ◽

Cited By ~ 10

Author(s):

R. Poulin ◽

T.L.F Leung

Keyword(s):

Species Richness ◽

Parasite Species ◽

Parasite Community ◽

Taxonomic Composition ◽

Latitudinal Gradients ◽

Latitudinal Variation ◽

Parasite Communities ◽

Helminth Communities ◽

Vertebrate Hosts ◽

Parasite Assemblages

AbstractAlthough latitudinal gradients in diversity have been well studied, latitudinal variation in the taxonomic composition of communities has received less attention. Here, we use a large dataset including 950 surveys of helminth endoparasite communities in 650 species of vertebrate hosts to test for latitudinal changes in the relative contributions of trematodes, cestodes, nematodes and acanthocephalans to parasite assemblages. Although the species richness of helminth communities showed no consistent latitudinal variation, their taxonomic composition varied as a function of both host type and latitude. First, trematodes and acanthocephalans accounted for a higher proportion of species in helminth communities of fish, whereas nematodes achieved a higher proportion of the species in communities of bird and especially mammal hosts. Second, the proportion of trematodes in helminth communities of birds and mammals increased toward higher latitudes. Finally, the proportion of nematodes per community increased toward lower latitudes regardless of the type of host. We present tentative explanations for these patterns, and argue that new insights in parasite community ecology can be gained by searching for latitudinal gradients not only in parasite species richness, but also in the taxonomic composition of parasite assemblages.

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Intestinal helminth communities of Podarcis bocagei and Podarcis carbonelli (Sauria: Lacertidae) in NW Portugal

Helminthologia ◽

10.2478/s11687-006-0008-y ◽

2006 ◽

Vol 43 (1) ◽

pp. 37-41 ◽

Cited By ~ 18

Author(s):

M. Galdón ◽

V. Roca ◽

D. Barbosa ◽

M. Carretero

Keyword(s):

Host Species ◽

Parasite Species ◽

Intestinal Parasites ◽

Intestinal Helminth ◽

Nw Portugal ◽

Gastrointestinal Helminth ◽

Helminth Communities ◽

Lacertid Lizards ◽

Podarcis Bocagei

AbstractA survey of gastrointestinal helminth communities of Podarcis bocagei and Podarcis carbonelli (Sauria: Lacertidae) from NW Portugal was conducted to determine the prevalence, intensity and diversity of intestinal parasites in these lizards. A few parasite species were found in both hosts, their prevalences, mean intensities and abundances of infection being low or very low. Low values of richness and abundance of parasite species were also found in the helminth infracommunities of individuals of both host species. These low values of parameters of infection and diversity are discussed and compared between both host species and among other Iberian lacertid lizards.

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Parasitization of monkey goby, Neogobius fluviatilis (Pallas, 1814) (Actinopterygii: Gobiidae), at localities with different salinity levels

Oceanological and Hydrobiological Studies ◽

10.1515/ohs-2018-0035 ◽

2018 ◽

Vol 47 (4) ◽

pp. 376-383 ◽

Cited By ~ 2

Author(s):

Yuriy Kvach ◽

Markéta Ondračková ◽

Teodora Trichkova ◽

Oleksandra Drobiniak ◽

Veniamin Zamorov ◽

...

Keyword(s):

Parasite Species ◽

Danube River ◽

Intermediate Hosts ◽

Abiotic Conditions ◽

Brackish Waters ◽

Parasite Communities ◽

Parasite Richness ◽

Estuarine Zone ◽

Salinity Levels ◽

Freshwater Site

Abstract Parasitism of monkey goby, Neogobius fliviatilis, was assessed at three brackish water localities with different salinity levels (Gulf of Odessa, Khadzibey Estuary, Lake Kytay) and one freshwater site along the Lower Danube River (Vidin). A total of 25 parasite taxa were identified, with minimum parasite richness recorded in the Khadzhibey Estuary (three species) and the maximum along the Lower Danube (11 species). Parasite richness in the mesohaline Gulf of Odessa and oligohaline Lake Kytay was lower, but still relatively high compared to the Khadzibey Estuary. Our study indicates that freshwater populations of monkey goby host richer and more abundant parasite communities than those inhabiting brackish waters with (more or less) stable salinity. Unstable abiotic conditions that probably affected the parasite’s intermediate hosts contributed to the reduction in parasite species in the estuarine zone of the Danube.

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Salinity dependence of parasite infestation in the European eel Anguilla anguilla in northern Germany

ICES Journal of Marine Science ◽

10.1093/icesjms/fsn160 ◽

2008 ◽

Vol 66 (2) ◽

pp. 358-366 ◽

Cited By ~ 21

Author(s):

Eva Jakob ◽

Reinhold Hanel ◽

Sven Klimpel ◽

Karsten Zumholz

Keyword(s):

Fresh Water ◽

Brackish Water ◽

Parasite Species ◽

Diversity Index ◽

Anguilla Anguilla ◽

European Eel ◽

Northern Germany ◽

Parasite Communities ◽

Helminth Communities ◽

Parasite Infestation

Abstract Jakob, E., Hanel, R., Klimpel, S., and Zumholz, K. 2009. Salinity dependence of parasite infestation in the European eel Anguilla anguilla in northern Germany. – ICES Journal of Marine Science, 66: 358–366. The aim of the study was to examine metazoan parasite communities of European eels (Anguilla anguilla) in fresh-water, brackish water and marine localities in northern Germany. In all, 29 parasite species/taxa were found in 170 eels: eight digeneans, one monogenean, five cestodes, ten nematodes, two acanthocephalans, and three crustaceans. Measures of diversity characteristics of the helminth communities included species richness, Shannon's diversity index and its evenness, and the Berger–Parker dominance index. The highest species diversity and lowest dominance values were calculated for the helminth communities of eels from the two Baltic Sea localities. Parasite communities of European eels clearly exhibit the habitat preferences of their hosts, salinity-dependent specificities, and a clustering into fresh-water, brackish, and marine groups. The highly pathogenic parasite species Anguillicola crassus and Pseudodactylogyrus spp. were found at all sampling sites in fresh water and brackish water, with high prevalence. Basic information is provided on the risks of restocking programmes solely focusing on fresh-water sites.

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New data on endohelminth communities of barbel Barbus barbus from the Bulgarian part of the River Danube

Helminthologia ◽

10.2478/helm-2018-0016 ◽

2018 ◽

Vol 55 (3) ◽

pp. 222-229

Author(s):

M. Chunchukova ◽

D. Kirin

Keyword(s):

Species Diversity ◽

Parasite Species ◽

Danube River ◽

Species Structure ◽

Ecological Indices ◽

Component Community ◽

Pomphorhynchus Laevis ◽

Parasite Communities ◽

Barbus Barbus ◽

River Danube

Summary Species diversity and composition of the parasite communities of barbel (Barbus barbus) at the infracommunity and component community levels were studied in the Lower Danube River, Bulgaria. During the two-year investigations, five parasite species have been found in 92 host fish: Bathybothrium rectangulum (Cestoda), Acanthocephalus anguillae and Pomphorhynchus laevis (Acanthocephala) and larval stages of Contracaecum sp. and Raphidascaris acus (Nematoda). Bathybothrium rectangulum and R. acus found in barbel represented new host records in Bulgaria. Parasite communities of barbel were species-poor and highly unbalanced. Pomphorhynchus laevis represented the dominant (core) species (prevalence 98.9 %), the second most frequent component parasite was Contracaecum sp. (P = 14.1 %) and remaining three species occurred only accidentally in barbels. Differences in species richness, prevalence, intensity of infection and ecological indices between individual seasons (spring, summer, autumn) were statistically significant, but considerably affected by unequal species structure of communities with highly prevailing P. laevis. Low parasite species diversity of barbel and low values of most ecological indices, when compared with previous studies in this area (or other Bulgarian parts of the River Danube) might indicate that environmental conditions are impaired and thus, not favourable for the development of barbel parasites (primarily to their intermediate host survival) in the Lower Danube River of Bulgaria.

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