Importance of lake characteristics in structuring parasite communities of salmonids from insular Newfoundland

1991 ◽  
Vol 69 (12) ◽  
pp. 2962-2967 ◽  
Author(s):  
David J. Marcogliese ◽  
David K. Cone
Keyword(s):  
Parasite Species ◽  
Lake Depth ◽  
Intermediate Hosts ◽  
Deep Lakes ◽  
Large Lakes ◽  
Metazoan Parasites ◽  
Fundamental Factor ◽  
Parasite Communities ◽  
Parasite Richness ◽  
And Cluster Analysis

Metazoan parasites of Salmo salar and Salvelinus fontinalis were studied at eight sites in insular Newfoundland. The locations included water bodies of various sizes (<1, 1–100, and >100 ha) and depths (<1, 1–5, and >5 m). Nine of 14 parasite species were salmonid specialists and generally had wider geographic distributions than the remaining generalists, with one exception (Echinorhynchus lateralis). The distributions of Crepidostomum farionis, Sterliadochona ephemeridarum, and E. lateralis appeared to be facilitated by the widespread distribution of intermediate hosts. Larval digeneans (Apophallus imperator, Diplostomum sp., and Tetracotyle sp.) were typically associated with shallow medium-sized lakes. Species using limnetic copepods as intermediate hosts (Philonema agubernaculum, Eubothrium salvelini, and Diphyllobothrium sp.) were most often found in fishes inhabiting the deeper lakes. Small ponds had low parasite richness (R = 5); medium and large lakes had similar richness (R = 9–11). Jaccard's index and cluster analysis revealed that fishes in the small ponds and deep lakes had inherently different parasites from fishes of the shallow medium-sized lakes, the latter containing fishes parasitized by larval digeneans. Based on the study it was concluded that lake depth is a fundamental factor determining the structure of parasite communities in salmonids in insular Newfoundland.

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

2009 ◽  
Vol 46 (3) ◽  
pp. 168-176 ◽  
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.

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

2018 ◽  
Vol 47 (4) ◽  
pp. 376-383 ◽  
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.

Metazoan Parasites and Health State of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae), From Tonga Lake and El Mellah Lagoon in the Northeast of Algeria

2018 ◽  
Vol 52 (4) ◽  
pp. 279-288 ◽  
Author(s):  
F. Bakaria ◽  
S. Belhaoues ◽  
N. Djebbari ◽  
M. Tahri ◽  
I. Ladjama ◽  
...  
Keyword(s):  
Brackish Water ◽  
Parasite Species ◽  
Anguilla Anguilla ◽  
European Eel ◽  
Health State ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
High Dominance ◽  
Argulus Foliaceus

Abstract The aim of the study was to examine metazoans parasite communities of European eels (Anguilla anguilla) in freshwater (Tonga Lake) and brackish water (El Mellah lagoon) in the northeast of Algeria. Six parasite taxa were collected: one monogenean, Pseudodactylogyrus sp.; two crustaceans, Ergasilus sp. and Argulus foliaceus; two nematodes, Cucullanus sp. and Anguillicola crassus; one cestode, Bothriocephalus claviceps. Th e most prevalent parasite taxa in freshwater were Pseudodactylogyrus sp., A. crassus and Bothriocephalus claviceps; whereas in the brackish water, eels were infected mainly with A. crassus. Th e characteristics of the parasite component community structure revealed low parasite species diversity and high dominance values in eels from the two localities. Both communities were dominated by a single parasite species: Tonga eels by the monogenean Pseudodactylogyrus sp. and El Mellah lagoon eels by the nematode A. crassus, verified by high Berger-Parker dominance values of 0.76 and 0.87 respectively.

scholarly journals Interannual variation in the metazoan parasite communities of bigeye trevally Caranx sexfasciatus (Pisces, Carangidae)

Parasite ◽  
2020 ◽  
Vol 27 ◽  
pp. 6 ◽  
Author(s):  
Juan Violante-González ◽  
Scott Monks ◽  
Yesenia Gallegos-Navarro ◽  
Nataly G. Santos-Bustos ◽  
Princessa J. Villalba-Vasquez ◽  
...  
Keyword(s):  
Species Composition ◽  
Parasite Species ◽  
Single Species ◽  
Parasite Community ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
Local Fluctuations ◽  
Low Diversity ◽  
Abiotic Environmental Factors

Parasite communities in Caranx sexfasciatus were characterized and analyzed to determine any interannual variations in structure and/or species composition. In total, 422 C. sexfasciatus were collected from Acapulco Bay, Mexico, between May 2016 and March 2019. Thirty-two taxa of metazoan parasites were identified: five Monogenea, thirteen Digenea, one Acanthocephala, one Cestoda, three Nematoda, seven Copepoda, and two Isopoda. Monogeneans were the most frequent and abundant parasite species in all sampling years. Parasite species richness at the component community level varied significantly from 8 (May 2016) to 25 (March 2019) and was similar to previous reports for other species of Carangidae. The component communities and infracommunities in C. sexfasciatus were characterized by low parasite species numbers, low diversity, and dominance of a single species (the monogenean Neomicrocotyle pacifica). Parasite community structure and species composition varied between sampling years and climatic seasons. Seasonal or local fluctuations in some biotic and abiotic environmental factors probably explain these variations.

Intestinal helminth parasites in flounderPlatichthys flesusfrom the River Thames: an infracommunity analysis

2004 ◽  
Vol 78 (4) ◽  
pp. 297-303 ◽  
Author(s):  
S. Guillen-Hernandez ◽  
P.J. Whitfield
Keyword(s):  
Parasite Species ◽  
Parasite Community ◽  
Intestinal Helminth ◽  
Helminth Parasites ◽  
Intermediate Hosts ◽  
Component Community ◽  
Parasite Communities ◽  
High Prevalence ◽  
Marine Influence ◽  
River Thames

AbstractAn analysis was undertaken of intestinal helminth communities in flounderPlatichthys flesusfrom two sites on the River Thames. A comparison was made between helminth community richness and diversity from these sites at the component and infracommunity levels. At the component community level, a richer and more diverse parasite community was found in flounder from the Tilbury location (marine influence) than that from the Lots Road location (freshwater influence). At the infracommunity level, more parasite species and parasite individuals per host were found at Lots Road and the percentage of similarity values were low at both locations. Helminth species with high prevalence values in the parasite communities of the flounder are the dominant species in any individual fish, harbouring multi-specific infections. The presence of more invertebrate species, which are intermediate hosts in the helminth life cycle in the Thames, fish vagility and the high prevalence and abundance values ofPomphorhynchus laevisin the flounder, may explain the differences between the two locations.

Fauna and ecology of helminths in cattle (Bos taurus Dom.)

2016 ◽  
Vol 3 (4) ◽  
pp. 447-453
Author(s):  
Шакарбаев ◽  
U Shakarbaev ◽  
Гаипова ◽  
M Gaipova ◽  
Акрамова ◽  
...  
Keyword(s):  
Central Region ◽  
Parasite Species ◽  
Bos Taurus ◽  
Helminth Species ◽  
Intermediate Hosts ◽  
Parasite Communities ◽  
Host Body ◽  
The Common

Objective of research: The purpose of research is to study the fauna and ecology of helminths in cattle from Central Uzbekistan. Material and methods. The cattle was investigated by the method of complete and incomplete helminthological autopsies. Cestodes, trematodes and nematodes were examined using the common methods. Larvae of trematodes and nematodes from dominant parasite species found in intermediate hosts (molluscs, insects, ants and dipterous) are also described in this paper. Results and discussion: 32 helminth species were identified in cattle from the central region of Uzbekistan: 5 species belong to the class Cestoda, 6 species — to the class Trematoda and 21 species — to the class Nematoda. Based on the nature of helminth localization in the host body, three groups of parasite communities were detected.

scholarly journals Helminths of introduced house sparrows (Passer domesticus) in Brazil: does population age affect parasite richness?

2010 ◽  
Vol 100 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Cláudia Calegaro-Marques ◽  
Suzana B. Amato
Keyword(s):  
Good Predictor ◽  
Parasite Species ◽  
Passer Domesticus ◽  
Community Diversity ◽  
Urban Landscapes ◽  
Intermediate Hosts ◽  
Porto Alegre ◽  
House Sparrows ◽  
Parasite Richness ◽  
The World

Species introductions have altered host and parasite diversity throughout the world. In the case of introduced hosts, population age appears to be a good predictor of parasite richness. Habitat alteration is another variable that may impact host-parasite interactions by affecting the availability of intermediate hosts. The house sparrow (Passer domesticus (Linnaeus, 1758)) is a good model to test these predictions. It was introduced in several parts of the world and can be found across rural-urban gradients. A total of 160 house sparrows from Porto Alegre, state of Rio Grande do Sul, Brazil, were necropsied. Thirty house sparrows (19 %) were parasitized with at least one out of five helminth species (Digenea: Tamerlania inopina Freitas, 1951 and Eumegacetes sp.; Eucestoda: Choanotaenia passerina (Fuhrmann, 1907) Fuhrmann, 1932; Nematoda: Dispharynx nasuta (Rudolphi, 1819) Stiles & Hassall, 1920 and Cardiofilaria pavlovskyi Strom, 1937). Overall, there was no difference in prevalence and intensity of infection of any parasite species, parasite richness and community diversity between adult males and females and adults and juveniles. The number of infected sparrows among seasons, the richness of helminths and the abundance of species were also similar between rural and urban landscapes. Only the prevalence of C. passerina varied seasonally (p=0.0007). A decrease in the number of parasite species from the original range of P. domesticus (13) to its port of entrance in Brazil, the city of Rio de Janeiro (nine), to Porto Alegre (five) is compatible with the hypothesis that host population age is a good predictor of parasite richness.

Metazoan parasites of freshwater cyprinid fish (Leuciscus cephalus): testing biogeographical hypotheses of species diversity

Parasitology ◽  
2008 ◽  
Vol 135 (12) ◽  
pp. 1417-1435 ◽  
Author(s):  
M. SEIFERTOVÁ ◽  
M. VYSKOČILOVÁ ◽  
S. MORAND ◽  
A. ŠIMKOVÁ
Keyword(s):  
Species Diversity ◽  
Latitudinal Gradient ◽  
Parasite Species ◽  
Negative Relationship ◽  
Phylogenetic Distance ◽  
Geographical Distance ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
Relative Prevalence ◽  
Leuciscus Cephalus

SUMMARYThe diversity and similarity of parasite communities is a result of many determinants widely considered in parasite ecology. In this study, the metazoan parasite communities of 15 chub populations (Leuciscus cephalus) were sampled across a wide geographical range. Three hypotheses of biogeographical gradients in species diversity were tested: (1) latitudinal gradient, (2) a ‘favourable centre’ versus ‘local oasis’ model, and (3) decay of similarity with distance. We found that the localities in marginal zones of chub distribution showed lower parasite species richness and diversity. A latitudinal gradient, with increasing abundance of larvae of Diplostomum species, was observed. There was a general trend for a negative relationship between relative prevalence or abundance and the distance from the locality with maximum prevalence or abundance for the majority of parasite species. However, statistical support for a ‘favourable centre’ model was found only for total abundance of Monogenea and for larvae of Diplostomum species. The phylogenetic relatedness of host populations inferred an important role when the ‘favourable centre’ model was tested. Testing of the hypothesis of ‘decay of similarity with geographical distance’ showed that phylogenetic distance was more important as a determinant of similarity in parasite communities than geographical distance between host populations.

The structure of parasite component communities in brackish water fishes of the northeastern Baltic Sea

Parasitology ◽  
2001 ◽  
Vol 122 (4) ◽  
pp. 471-481 ◽  
Author(s):  
E. T. VALTONEN ◽  
K. PULKKINEN ◽  
R. POULIN ◽  
M. JULKUNEN
Keyword(s):  
Baltic Sea ◽  
Freshwater Fish ◽  
Marine Fish ◽  
Fish Species ◽  
Parasite Species ◽  
Marine Fish Species ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
Bothnian Bay ◽  
Marine Parasite

We used nestedness analysis to seek non-random patterns in the structure of component communities of metazoan parasites collected from 31 sympatric fish species from the northeastern Bothnian Bay, the most oligohaline area of the Baltic Sea. Only 8 marine parasite species were found among the 63 species recorded, although some marine fish species reproduce in the bay and others occasionally visit the area. Marine parasite species can utilize both freshwater and marine fish species as intermediate or final hosts, and marine fish can harbour freshwater parasite species. This exchange of parasite species between marine and freshwater fish has probably resulted from ecological factors acting over short time scales rather than from evolutionary processes acting over longer time; the key factor probably being the immediate presence of suitable intermediate and definitive hosts. Marine fish were expected to harbour species-poor parasite communities consisting mainly of generalists acquired from the sympatric freshwater fish species, which would result in a nested pattern among the different component communities. However, an anti-nested pattern was found in the component communities of metazoan parasites of fishes from the Bothnian Bay. A likely explanation for the observed pattern is that there are specialist parasite species, the majority of which are cestodes, in some of the freshwater fish species which otherwise have depauperate parasite communities.

scholarly journals Metazoan parasite community of Steindachnerina brevipinna (Curimatidae) from Southern Brazil

2010 ◽  
Vol 47 (3) ◽  
pp. 164-169 ◽  
Author(s):  
T. Ceschini ◽  
R. Takemoto ◽  
F. Yamada ◽  
L. Moreira ◽  
G. Pavanelli
Keyword(s):  
Qualitative Data ◽  
Parasite Species ◽  
Statistical Tests ◽  
Parasite Community ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Ecological Relationships ◽  
Parasite Richness ◽  
Relative Condition Factor ◽  
Gonadal Maturity

Abstract In order to examine the ecological relationships of metazoan parasites and their hosts, 63 specimens of Steindachnerina brevipinna have been collected from April to September 2006, in the rivers Guairacá and Corvo, tributaries of the low Paranapanema River. Five different parasite species have been found (Paranaella sp., Sphicterodiplostomum musculosum, Cosmoxynema vianai, Travnema travnema and Spinoxyuris sp.), with parasite richness from 1 to 4. The dominance index (C > 0.25) was calculated for S. musculosum and aggregation of S. musculosum and Paranaella sp. were reported. There were no associations or covariations between the species of parasites. Values did not show interference of parasite abundance at different gonadal maturity stages. The relative condition factor (Kn) did not show significant values regarding quantitative and qualitative data on parasitism. Statistical tests were significant between the prevalence and the abundance of parasites and the standard length of the hosts, as well as for the parasite abundance in different months and tributaries.

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