The distribution of digenean metacercariae within bream (Abramis brama) gill apparatus: preferences, co-occurrence and interactions of parasites

2017 ◽  
Vol 92 (3) ◽  
pp. 332-342
Author(s):  
M. Zolovs ◽  
J. Kanto ◽  
I. Jakubāne
Keyword(s):  
Mixture Models ◽  
Host Species ◽  
Parasite Species ◽  
Null Models ◽  
Abramis Brama ◽  
Ecological Studies ◽  
Host Individual ◽  
Bream Abramis Brama ◽  
Species Specific ◽  
Bucephalus Polymorphus

AbstractSpecies-specific microenvironmental preferences and interactions between parasite species have been the focus of many ecological studies. Here, we studied the distribution of ectoparasite species within the gill apparatus of bream (Abramis brama) from Lake Lubāns (Latvia) to establish whether digenean metacercariae: (1) prefer specific patches within the gill apparatus; (2) co-occur in the same patches with monogeneans and copepods within a host individual; and (3) interact with monogeneans and copepods. We recorded all parasites on gill arches of the same host species and used null models to analyse co-occurrences of digenean metacercariae, monogeneans and copepods. Zero-inflated mixture models were used to define the preferred patches of parasites. We found that digenean metacercariae (Bucephalus polymorphus) prefer specific patches of the gill apparatus to encyst, and shared these preferences with monogeneans and copepods, but did not interact with them. We concluded that digenean metacercariae have a species-specific microenvironmental preference to encyst in the gill apparatus and their occurrence (even in high numbers) does not reduce the success of attachment of monogeneans and copepods in the same gill patches.

scholarly journals INFECTIOUSNESS OF BREAM ABRAMIS BRAMA BY MONOGENEANS (MONOGENEA) IN THE LOWER IRTYSH BASIN

2018 ◽  
pp. 99-104
Author(s):  
Ekaterina Leonidovna Voropaeva ◽  
Elizaveta L'vovna Liberman
Keyword(s):  
Parasite Species ◽  
Fish Population ◽  
Abramis Brama ◽  
Fish Introduction ◽  
Abundance Index ◽  
High Fecundity ◽  
Rich Diversity ◽  
Bream Abramis Brama ◽  
Irtysh Basin ◽  
Adaptive Variability

In the Lower Irtysh basin there is rich diversity of the fish population, bream Abramis brama (Linnaeus, 1758) is one of the representatives. Having been introduced into the Ob’-Irtysh basin more than 100 years ago, it dispersed in most reservoirs due to its wide adaptive variability and high fecundity. In the process of fish introduction, the new types of parasites replenish the parasitic communities of water bodies. As a result of studying bream parasitic fauna after its distribution there has been stated a decrease in parasite species composition, in comparison with its maternal habitat. Studies conducted in 2017-2018 allowed to fund out infectiousness of bream with four types of monogeneans: Gyrodactylus elegans , Dactylogyrus falcatus , D. wunderi , D. zandti . There has been recorded 100% extensiveness of invasion by dactylogyruses. Extensiveness of invasion by G.elegans in 2017 amounted to 100%, in 2018 - 74.2%. The abundance index of G.elegans in 2018 decreased in comparison with 2017 and amounted to 55.9 and 83.4 specimens, respectively. Abundance index of Dactylogyrus spp. decreased in 2018 and amounted to 27.9 specimens, compared to 2017 when there were registered 55.9 specimens. In 2017, the examined bream individuals showed a total predominance of gyrodactyluses over dactylogyruses, whereas in 2018 the number of Dactylogyrus spp was higher than of G. elegans . The of infectiousness of bream was first established after its distribution in the Ob’-Irtysh basin, when it was infected by the specific monogenean - Dactylogyrus falcatus (Wedl, 1857).

scholarly journals Parasites of carp bream, Abramis brama, from Lake Jamno, Poland

2007 ◽  
Vol 44 (4) ◽  
pp. 222-225 ◽  
Author(s):  
E. Dzika ◽  
A. Kuształa ◽  
M. Kuształa
Keyword(s):  
Coastal Lagoon ◽  
Brackish Water ◽  
Parasite Species ◽  
Abramis Brama ◽  
Bream Abramis Brama ◽  
Argulus Foliaceus ◽  
The City ◽  
Industrial Sewage ◽  
Tylodelphys Clavata

AbstractA total of 40 carp bream, Abramis brama (L.) from Lake Jamno were examined for their parasites in May 2002. Lake Jamno is a brackish-water coastal lagoon, strongly eutrophied and polluted by communal and industrial sewage from the city of Koszalin. The survey yielded 15 parasite species, representing different systematic groups, including 7 monogeneans Dactylogyrus auriculatus, D. falcatus, D. wunderi, D. zandti, Gyrodactylus elegans, Gyrodactylus sp., Diplozoon paradoxum; 4 digeneans (at the stage of metacercaria) Diplostomum sp., Tylodelphys clavata, Ichthyocotylurus platycephalus, I. variegatus; 1 cestode Caryophyllaeus laticeps; 2 crustaceans Ergasilus sieboldi, Argulus foliaceus; and 1 hirudinean Caspiobdella fadejewi. Monogeneans constituted the most abundant parasite group, accounting for 61.5 % of all parasite individuals collected. They were followed by the cestodes (20.7 %), digenean flukes (16 %), crustaceans (0.7 %), and leeches (0.2 %).

scholarly journals Predictable and host‐species specific humanization of the gut microbiota in captive primates

2021 ◽  
Author(s):  
Jennifer L. Houtz ◽  
Jon G. Sanders ◽  
Anthony Denice ◽  
Andrew H. Moeller
Keyword(s):  
Gut Microbiota ◽  
Host Species ◽  
Species Specific

The Source of Muddy Odor in Bream (Abramis brama) from the Porvoo Sea Area (Gulf of Finland)

1979 ◽  
Vol 36 (8) ◽  
pp. 883-890 ◽  
Author(s):  
Per-Edvin Persson
Keyword(s):  
Abramis Brama ◽  
Blue Green Alga ◽  
Bream Abramis Brama ◽  
High Nutrient ◽  
Off Flavors ◽  
Odor Compounds ◽  
High Concentrations ◽  
High Nutrient Concentration ◽  
Oscillatoria Agardhii ◽  
Sea Area

The study area was a shallow, extremely eutrophic, somewhat brackish water bay on the south coast of Finland. Muddy odor in bream (Abramis brama) was significantly correlated with the amount of the blue-green alga Oscillatoria agardhii occurring in the phytoplankton. Cultures dominated by this alga contained the muddy odor compound geosmin. The high concentrations of O. agardhii in the study area were caused by several interacting factors, of which the high nutrient concentration and the temperature of the water seemed to be especially important. Odoriferous actinomycetes isolated from the water produced the muddy odor compounds geosmin and 2-methylisoborneol, but there seemed to be a lag time of several weeks between maximal concentrations of actinomycetes and development of off-flavors in the fish. Key words: geosmin, 2-methylisoborneol, Oscillatoria agardhii, actinomycetes, flavor, fish, eutrophication

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