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

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.

Seasonality of salmonid parasites from flow‐through aquaculture in northern Germany: Emphasis on pathogenicity of Diplostomum spp. metacercaria

“…A water flow-through of average 650l/s. rapidly washes the parasite larvae through the system, significantly increasing the exposure of the fish to In comparison with the studied wild fish populations, especially of the cyprinids and perch from the neighbouring Lake Tollense (Suthar et al 2021), the infection level inside the aquaculture farm was rather low. However, this does not refer to the diplostomids that were highly abundant in the sampled salmonids.…”

“…However, this does not refer to the diplostomids that were highly abundant in the sampled salmonids. Suthar et al (2021) recorded D.…”

“…Wysujack et al (2014) studied European eels for the presence of Anguillicola crassus Kuwahara, Niimi and Hagaki, 1974 from numerous water bodies, rivers and coastal waters, including Lake Tollense. A recent study of Suthar et al (2021) analysed the parasite fauna of bream, Eurasian perch and roach in Lake Tollense in order to evaluate the parasite community and to compare them to other freshwater systems in the state. Altogether, 32 parasite species were found by Suthar et al (2021) including seven species which were also recorded in this study (D. spathaceum, T. clavata, Tylodelphys podicipina, Ichthyocotylurus variegatus, Triaenophorus nodulosus, Argulus foliaceus and Ergasilus sieboldi).…”

“…A recent study of Suthar et al (2021) analysed the parasite fauna of bream, Eurasian perch and roach in Lake Tollense in order to evaluate the parasite community and to compare them to other freshwater systems in the state. Altogether, 32 parasite species were found by Suthar et al (2021) including seven species which were also recorded in this study (D. spathaceum, T. clavata, Tylodelphys podicipina, Ichthyocotylurus variegatus, Triaenophorus nodulosus, Argulus foliaceus and Ergasilus sieboldi). The aim of the present study was to document the parasite infections of cultured salmonids in an open flow-through system in Mecklenburg-Western Pomerania that utilises surface water from Lake Tollense and to enlighten the inter-action of cultured and free-living fish.…”

Ectoparasitic community of the gills of Pacific sierra Scomberomorus sierra Jordan & Starks, 1895 (Actinopteri: Scombridae) from northern Peru

“…Metazoan parasites were removed, transferred and separated in petri dishes and finally washed with 0.9% saline solution (Suthar et al, 2022). All parasites followed standard mounting and staining procedures for each taxon.…”