scholarly journals Fish Parasite Community of Three Lakes with Different Trophic Status in Mecklenburg-Western Pomerania, Germany

2021 ◽  
Author(s):  
Jaydipbhai Suthar ◽  
Patrick Unger ◽  
Harry W. Palm
Keyword(s):  
Perca Fluviatilis ◽  
Rutilus Rutilus ◽  
Parasite Community ◽  
Biological Indicators ◽  
Diversity Indices ◽  
Parasite Fauna ◽  
Fish Parasites ◽  
Freshwater Ecosystem ◽  
Fish Parasite ◽  
Multivariate Statistical

Abstract Purpose The present study investigates the fish parasite fauna from Lake Tollense, Mecklenburg-Western Pomerania, Germany. Methods A total of 117 perch (Perca fluviatilis), bream (Abramis brama) and roach (Rutilus rutilus) were sampled for parasites during 2018 and 2019 from Lake Tollense and compared with earlier data from Lake Malchin and Lake Hohen Sprenz in 2011 and 2014, respectively. Parasites were identified based on morphological and molecular characters. Results A total of 32 parasite species were isolated from fishes of Lake Tollense, predominated by digeneans. Diplostomum baeri was found only in perch while D. spathacaeum was isolated from bream and roach. Parasite comparison of similar hosts between lakes revealed highly abundant Ichthyocotylurus spp. in perch and bream of Lake Malchin while Aspidogaster limacoides was most common in roach from Lake Tollense. Diversity indices of roach showed significant variation between localities. However, NMDS graph revealed separation of the three freshwater habitats based on the parasite fauna of perch, bream and roach. Conclusion Based on the multivariate statistical analysis, the three natural inland water bodies could be distinguished based on the parasite communities of perch, bream and roach. The potential to utilise fish parasites as biological indicators in freshwater ecosystem is discussed.

scholarly journals Parasite Fauna of the White-Streaked Grouper (Epinephelus ongus) from the Thousand Islands, Java, Indonesia

2020 ◽  
Author(s):  
Svenja Koepper ◽  
S. Nuryati ◽  
Harry Wilhelm Palm ◽  
S. Theisen ◽  
C. Wild ◽  
...  
Keyword(s):  
Parasite Community ◽  
Parasite Fauna ◽  
Transmission Risk ◽  
Fish Parasites ◽  
Parasite Transmission ◽  
New Host ◽  
Metazoan Parasite ◽  
Thousand Islands ◽  
Java Sea ◽  
Epinephelus Ongus

Abstract Purpose Fish parasites can cause diseases in humans and lead to commercial losses in fisheries and aquaculture. The objectives of this study were to analyze E. ongus’s parasite fauna regarding food safety and parasite transmission risk between Epinephelus species and test whether E.ongus populations can be distinguished by their parasite community. Methods We studied the metazoan parasite fauna of 30 white-streaked groupers Epinephelus ongus from the Thousand Islands, Java Sea, Indonesia, and compared the parasite community with specimens from Karimunjawa archipelago, Java Sea, from a former study. We used common fish parasitological methods for fish examination and parasite calculations. Results We found 12 metazoan parasite species, establishing five new host and five new locality records, increasing the known parasite fauna of E. ongus by 21%. No anisakid worms infected E. ongus. All but one (trematode Gyliauchen cf. nahaensis) species have been previously reported from Epinephelus. Parasite abundance of E. ongus differed significantly between the two regions. Conclusions Due to a certain degree of host specificity to groupers, there is potential risk of parasite transmission from E. ongus into groupers in mariculture or surrounding fishes, which increases (sea) food security related health risks from zoonotic parasites and calls for better monitoring and management plans for E. ongus. The regional separation of the Thousand Islands and Karimunjawa with different food availability and fish ecology causes different parasite abundances, distinguishing two separate E. ongus populations by their parasite fauna.

Temporal variation in juvenile fish communities of Kaunas reservoir littoral zone, Lithuania

2012 ◽  
Vol 7 (5) ◽  
pp. 858-866 ◽  
Author(s):  
Valdemaras Žiliukas ◽  
Vida Žiliukienė ◽  
Rimantas Repečka
Keyword(s):  
Littoral Zone ◽  
Gasterosteus Aculeatus ◽  
Juvenile Fish ◽  
Fish Communities ◽  
Perca Fluviatilis ◽  
Rutilus Rutilus ◽  
Diversity Indices ◽  
Fish Diversity ◽  
Roach Rutilus Rutilus ◽  
Species Diversity Indices

AbstractThe aim of this study was to assess juvenile fish communities in terms of species composition, fish diversity and density in the littoral zone of the Kaunas reservoir before (in 1989–1990, period I) and after (in 1999–2000, period II, and in 2006–2007, period III) launching the Kruonis hydroelectric pumped plant (Kruonis HPP). During the whole research period, 20 fish species were caught. According to the frequency of occurrence, the three-spined stickleback Gasterosteus aculeatus, European perch Perca fluviatilis and roach Rutilus rutilus were regarded as constant species in all investigated periods. Significant differences were established in juvenile fish community density between period I and periods II and III, whereas species richness (S) and species diversity indices (H′, J′) did not change significantly. The density of the shoreline community in period III was more than two times lower than in period I, probably due to higher fluctuations in water level of the reservoir, resulting from the Kruonis HPP operation.

scholarly journals First Note on Fish Parasites in Polissky Nature Reserve, Northern Ukraine

2018 ◽  
Vol 52 (1) ◽  
pp. 53-58
Author(s):  
N. Yu. Rubtsova ◽  
Yu. K. Kutsokon
Keyword(s):  
Parasite Species ◽  
Nature Reserve ◽  
Perca Fluviatilis ◽  
Rutilus Rutilus ◽  
Fish Parasites ◽  
Small Rivers ◽  
The North ◽  
Cobitis Taenia ◽  
First Time ◽  
Misgurnus Fossilis

Abstract Nineteen species of parasites belonging to seven taxonomical groups were detected in nine species of fish (Gobio gobio (Linnaeus, 1758), Cobitis taenia Linnaeus, 1758, Squalius cephalus (Linnaeus, 1758), Rutilus rutilus (Linnaeus, 1758), Misgurnus fossilis (Linnaeus, 1758), Sabanejewia baltica Witkowski, 1994, Barbatula barbatula (Linnaeus, 1758), Esox lucius Linnaeus, 1758 and Perca fluviatilis Linnaeus, 1758) from two small rivers in Polissky Nature Reserve in the northern part of Ukraine. Th e highest species richness of parasites was registered for G. gobio (7 species). Four species of parasites were found in S. cephalus. Three parasite species were found in E. lucius. Two parasite species were detected in R. rutilus and P. fluviatilis. C. taenia, M. fossilis, and S. baltica harboured each one species of parasites. Gyrodactylus sp. from S. baltica was reported for the first time. All parasites represent new geographical finding for the north of Ukraine.

An environmental assessment of the parasite fauna of the reef-associated grouperEpinephelus areolatusfrom Indonesian waters

2012 ◽  
Vol 88 (1) ◽  
pp. 50-63 ◽  
Author(s):  
S. Kleinertz ◽  
I.M. Damriyasa ◽  
W. Hagen ◽  
S. Theisen ◽  
H.W. Palm
Keyword(s):  
Regional Differences ◽  
Parasite Species ◽  
Biological Indicators ◽  
Parasite Fauna ◽  
Fish Parasites ◽  
Hepatosomatic Index ◽  
New Host ◽  
Segara Anakan Lagoon ◽  
First Time ◽  
Anisakid Nematodes

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.

scholarly journals Benthic macrofauna structure in the northeast area of Todos os Santos Bay, Bahia State, Brazil: patterns of spatial and seasonal distribution

2011 ◽  
Vol 59 (1) ◽  
pp. 27-42 ◽  
Author(s):  
Ana Maria S Pires-Vanin ◽  
Pablo Muniz ◽  
Fabio Cabrera De Léo
Keyword(s):  
Spatial Scales ◽  
Environmental Parameters ◽  
Fine Sand ◽  
Biological Indicators ◽  
Control Area ◽  
Benthic Macrofauna ◽  
Oil Refinery ◽  
Sediment Type ◽  
Multivariate Statistical ◽  
Homogeneous Groups

Structure of intertidal and subtidal benthic macrofauna in the northeastern region of Todos os Santos Bay (TSB), northeast Brazil, was investigated during a period of two years. Relationships with environmental parameters were studied through uni-and multivariate statistical analyses, and the main distributional patterns shown to be especially related to sediment type and content of organic fractions (Carbon, Nitrogen, Phosphorus), on both temporal and spatial scales. Polychaete annelids accounted for more than 70% of the total fauna and showed low densities, species richness and diversity, except for the area situated on the reef banks. These banks constitute a peculiar environment in relation to the rest of the region by having coarse sediments poor in organic matter and rich in biodetritic carbonates besides an abundant and diverse fauna. The intertidal region and the shallower area nearer to the oil refinery RLAM, with sediments composed mainly of fine sand, seem to constitute an unstable system with few highly dominant species, such as Armandia polyophthalma and Laeonereis acuta. In the other regions of TSB, where muddy bottoms predominated, densities and diversity were low, especially in the stations near the refinery. Here the lowest values of the biological indicators occurred together with the highest organic compound content. In addition, the nearest sites (stations 4 and 7) were sometimes azoic. The adjacent Caboto, considered as a control area at first, presented low density but intermediate values of species diversity, which indicates a less disturbed environment in relation to the pelitic infralittoral in front of the refinery. The results of the ordination analyses evidenced five homogeneous groups of stations (intertidal; reef banks; pelitic infralittoral; mixed sediments; Caboto) with different specific patterns, a fact which seems to be mainly related to granulometry and chemical sediment characteristics.

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