scholarly journals Fauna of parasite of cyprinids and percoids in the reservoirs of the Moscow Canal

2021 ◽  
Vol 15 (3) ◽  
pp. 32-47
Author(s):  
N. N. Romanova ◽  
N. A. Golovina ◽  
A. A. Vishtorskaya ◽  
P. P. Golovin

The purpose of the research is determination of the species composition of parasites of cyprinid and percoid fish in the reservoirs of the Moscow Canal.Materials and methods. In 2019–2020, parasitological material was collected in the spring, summer and autumn from percoid (the pike perch and European perch) and cyprinid fish (the bream, silver bream, roach, rudd and sabrefish) aged 2 to 7 years from the reservoirs of the Moscow Canal (Ikshinsky, Pestovsky, Pyalovsky and Klyazminsky Reservoirs) by the methods generally accepted in ichthyo-parasitology. To quantify the fish infection rate, we used the incidence or prevalence of infection, the intensity of infection, and the mean amplitude of the intensity of infection. We used Kabiosh index (K) to assess the species diversity of parasites. Results and discussion. The parasitological analysis results of percoids and cyprinids from the reservoirs of the Moscow Canal are presented. 34 parasite species were found in fish, which belong to nine taxonomic groups: Microsporidia, Myxosporea, Monogenea, Cestoda, Trematoda, Nematoda, Acanthocephala, Hirudinea, Crustacea. The largest number of species belongs to trematodes, the rest, taxa (mixo- and microsporidia, cestodes, nematodes, acanthocephalans, leeches and parasitic crustaceans), are represented singly. We calculated the species diversity ratio (R) of fish parasites in the reservoirs, which ranged from 0.335 to 0.575, which indicates the fauna similarity from 50 to 75%. The greatest similarity in the parasite fauna was found in the roach (R = 0.168–0.447), the least in the European perch (R = 0.447–1.0). We have identified the dominant species that are found in more than 20% of the studied fish and determine the “core” of the parasitic fauna, which included 4 parasite species of epizootic and 1 parasite species of epidemiological significance.

2009 ◽  
Vol 54 (2) ◽  
Author(s):  
Esra Kellermanns ◽  
Sven Klimpel ◽  
Harry Palm

AbstractA total of 38 Coryphaenoides mediterraneus from the Charlie-Gibbs Fracture Zone (CGFZ), a part of the Mid-Atlantic Ridge (MAR), was studied for parasites and feeding ecology. Sixteen different parasite species were found, most of them belonging to the Digenea (6 species) and Nematoda (6). Twelve new host and 11 new locality records were established, and 8 deep-sea generalists and 5 deep-sea specialists were found. Twelve adult and 3 larval parasites occurred, with Allopodocotyle margolisi (Digenea), Tetraphyllidea indet. (Scolex pleuronectis, Cestoda) and Ascarophis longiovata (Nematoda) being the predominant species. These parasites reached a prevalence of 50.0%, 86.8% and 68.4% with an intensity of infection of 1–10, 1–91 and 1–74, respectively. The food consisted of crustaceans and cephalopods; no further prey items such as fish could be identified. Coryphaenoides mediterraneus demonstrates a parasite fauna similar to that of other deep-sea macrourids. No MAR-specific parasite species were found, and the collected helminths are common fish parasites of the North Atlantic deep-sea basin and the adjacent continental shelf regions. Only few larval epipelagic generalists such as ascaridoid nematodes were found, due to the deep origin of the studied fish between 1700–3500 m. The recorded species rich parasite fauna reflects the wide depth range and opportunistic feeding behaviour of C. mediterraneus on benthopelagic food. The recorded parasite species composition around the MAR appears to be similar to other deep-sea locations in the Atlantic Ocean, demonstrating the wide zoogeographical distribution of these deep-sea metazoans. Consequences of the MAR, the CGFZ and the homogeneous deep-sea environmental conditions for the parasite species distribution are discussed.


2013 ◽  
Vol 40 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Aleya Begum ◽  
Nasrin Banu

A total of 75 toads (39 males and 36 females), Bufo melanostictus, collected from different areas of Dhaka city from May 2009 to April 2010 was examined for helminth parasites. The results showed that seven parasite species were collected, and prevalence of infection was 100%. The parasite fauna was comprised of Trematoda: 8% was the prevalence of Ganeo kumaonensis, 8% of Halipegus eccentricus; Nematoda: 100% of Oswaldocruzia indica, 68% of Neopharyngodon sp., 40% of Rhabdias bufonis; Acanthocephala: 28% of Pseudoacanthocephalus bufonis; and Pentastomida: 4% of Raillietiella indica. Serious damage was observed in intestine (53.94%) then rectum (24.55%), stomach (12.73%) and lungs (8.78%). The males had a higher intensity (77.92) than the females (44.58). Seasonally, the highest intensity of infection was found in the rainy season (81.21) and lowest during the winter (39.87). DOI: http://dx.doi.org/10.3329/bjz.v40i2.14308 Bangladesh J. Zool. 40(2): 155-164, 2012


2016 ◽  
Vol 3 (3) ◽  
pp. 281-290
Author(s):  
Поляева ◽  
K. Polyaeva ◽  
Романов ◽  
V. Romanov

Objective of research: The purpose of our research was to study parasite fauna of salmonoid fishes from the lake Sobach’e (Putorana plateau) and to report its ecological and faunistic characteristics. Material and methods: 88 specimens of salmonoid fishes (herring, siberian whitefish, round whitefish, arctic grayling and dominant species of char) were collected from the lake Sobach’e in July — August 2014. Collecting, fixation and cameral treatment were carried out using the standard method of Bykhovskaya-Pavlovskaya. Statistical treatment of the data was conducted using the Quantitative Parasitology 3.0 software. Results and discussion: Data on parasite infestation of salmonoid fishes from the lake Sobach’e is provided. 29 parasite species (Myxosporea — 3, Monogenea — 2, Cestoda — 7, Trematoda — 7, Nematoda — 3, Acanthocephala — 4, Hirudinea — 1, Crustacea — 2) were found. Analysis of parasite distribution in their fish hosts was described. The lake has been classified as oligotrophic with the features of subfamilies Orthocladiinae and Pontoporane according to the concept of the parasitological typing of lakes presented by Rumyantsev E.A.


Author(s):  
Elizaveta L'vovna Liberman ◽  
Gleb Igorevich Volosnikov

The paper aims to identify the age-related dynamics patterns of distributing the parasitofauna of ide in the Lower Irtysh. The composition of the ide parasitic community is represented by sixteen species belonging to the classes Monogenea, Cestoda, Trematoda, Nematoda, Copepoda, where Trematoda class is remarkable for the highest species diversity (9 species). It has been stated that the composition of the ide parasite fauna is distributed nonuniformly within the age groups. The study noted the presence of parasite species invading ide of any age group; there were also parasitic organisms observed either in young ide representatives, or in older fish species, as well as there were found parasite species not belonging to any distribution system. According to the analysis results of the age dynamics of the average invasion intensity, it has been found that the representatives of O. felineus and R. campanula prevailed in the number of specimens in all age groups of ide. The dynamics of the invasion extensity conditionally corresponds to three groups: EI growing with the fish aging, EI with a decreasing dynamics, constant EI = 100% (represented by R. campanula). The parasitofauna of the Lower Irtysh ide is similar to the parasite fauna of ide species inhabiting other water bodies, and shows the peculiarities of occurrence both within a separate age group and in the dynamics of occurrence parameters with fish aging


Zoodiversity ◽  
2021 ◽  
Vol 55 (3) ◽  
pp. 251-264
Author(s):  
T. A. Kuzmina ◽  
I. V. Dykyy ◽  
O. O. Salganskij ◽  
O. I. Lisitsyna ◽  
E. M. Korol ◽  
...  

Monitoring studies of the species diversity in marine ecosystems provide important data on ecological changes caused by global warming and anthropogenic influence. The present work was aimed to analyze the species diversity of the helminths parasitic in teleost fishes inhabiting the area near the Ukrainian Antarctic Station “Akademik Vernadsky” (Galindez Island, Argentine Islands, West Antarctica). During April–January of 2014–2015 and 2019–2020, 156 specimens of six fish species (Notothenia coriiceps, N. rossii, Chaenocephalus aceratus, Parachaenichthys charcoti,Trematomus bernacchii, and Harpagifer antarcticus) were examined. Totally, 21,166 specimens of 31 helminth species were collected and assigned to five taxonomic groups: Monogenea (1 species), Digenea (10), Nematoda (5), Cestoda (4), and Acanthocephala (11). Twenty-six helminth species were found in N. coriiceps, 14 in N. rossii, 27 in P. charcoti, 23 in Ch. aceratus, 16 in T. bernacchii, and six in H. antarcticus. Larval stages of anisakid nematodes prevailed in the helminth community of Ch. aceratus (66 %) and P. charcoti (40 %), while other fish species were mostly infected with acanthocephalans,trematodes and cestodes. The present data on the species diversity of helminth communities can be used as a baseline for long-term monitoring studies of fish parasites in the region of the Argentine Islands.


2012 ◽  
Vol 88 (1) ◽  
pp. 50-63 ◽  
Author(s):  
S. Kleinertz ◽  
I.M. Damriyasa ◽  
W. Hagen ◽  
S. Theisen ◽  
H.W. Palm

AbstractSixtyEpinephelus areolatuswere examined for metazoan fish parasites in Indonesia, off Segara Anakan lagoon, Java and in Balinese waters. The study revealed 21 different parasite species, and 14 new host and locality records. The anisakid nematodesAnisakis typicaand, for the first time in Indonesia,Anisakissp. HC-2005 were identified by using molecular methods. Ecological parameters were calculated for both sites off the anthropogenically influenced Segara Anakan lagoon and the relatively undisturbed reference site at the southern Balinese coast. The fish from Segara Anakan demonstrated a significantly higher enzymatic activity (Hepatosomatic index) and a significantly reduced number of heteroxenous gut helminths (e.g. the digeneanDidymodiclinussp., the nematodeRaphidascarissp. and the acanthocephalanSerrasentis sagittifer). Other regional differences forE. areolatusincluded ecto-/endoparasite ratio, endoparasite diversity, the parasite species composition and prevalence of infection of the respective parasite species. We applied the stargraph method to visualize observed regional differences using grouper parasites as biological indicators for the sampled coastal ecosystems at both sampling sites.


2021 ◽  
Vol 168 (6) ◽  
Author(s):  
Ann Bucklin ◽  
Katja T. C. A. Peijnenburg ◽  
Ksenia N. Kosobokova ◽  
Todd D. O’Brien ◽  
Leocadio Blanco-Bercial ◽  
...  

AbstractCharacterization of species diversity of zooplankton is key to understanding, assessing, and predicting the function and future of pelagic ecosystems throughout the global ocean. The marine zooplankton assemblage, including only metazoans, is highly diverse and taxonomically complex, with an estimated ~28,000 species of 41 major taxonomic groups. This review provides a comprehensive summary of DNA sequences for the barcode region of mitochondrial cytochrome oxidase I (COI) for identified specimens. The foundation of this summary is the MetaZooGene Barcode Atlas and Database (MZGdb), a new open-access data and metadata portal that is linked to NCBI GenBank and BOLD data repositories. The MZGdb provides enhanced quality control and tools for assembling COI reference sequence databases that are specific to selected taxonomic groups and/or ocean regions, with associated metadata (e.g., collection georeferencing, verification of species identification, molecular protocols), and tools for statistical analysis, mapping, and visualization. To date, over 150,000 COI sequences for ~ 5600 described species of marine metazoan plankton (including holo- and meroplankton) are available via the MZGdb portal. This review uses the MZGdb as a resource for summaries of COI barcode data and metadata for important taxonomic groups of marine zooplankton and selected regions, including the North Atlantic, Arctic, North Pacific, and Southern Oceans. The MZGdb is designed to provide a foundation for analysis of species diversity of marine zooplankton based on DNA barcoding and metabarcoding for assessment of marine ecosystems and rapid detection of the impacts of climate change.


2010 ◽  
Vol 47 (4) ◽  
pp. 273-275
Author(s):  
Z. Pekmezci ◽  
S. Umur

AbstractThe nematode Schulmanela petruschewskii (Shulman, 1948) was identified during the parasitological examination on the liver parenchyma in one specimens of a cultured rainbow trout (Oncorhynchus mykiss) which reared in Derbent Dam Lake in Samsun, Turkey (41°25′6′’ North latitude, 35°49′52′’ East longitude) in August 2008. This parasite species was not previously reported from Turkey. With the present study we report S. petruschewskii for the first time in Turkey. This specimen which is a parasite of cultured rainbow trout (Oncorhynchus mykiss) is a new record for the Turkish parasite fauna. Original measurements and figures are presented.


Sign in / Sign up

Export Citation Format

Share Document