The anthelmintic activity of the eugenol against the fish parasite Gyrodactylus sp. was evaluated. After 1-h exposure to 5 and 10 mg/L eugenol, mortality of the parasites was near 80 and 90%, respectively. The concentrations used in the antiparasitic test were not toxic to Daphnia pulex (LC50 42.5 mg/L).

Abstract. Sufardin, Sriwulan, Anshary H. 2022. Gyrodactylus (Monogenea: Gyrodactylidae) on marine ornamental fish Amphiprion percula from a aquaculture facility in Indonesia. Biodiversitas 23: 1023-1030. As popular (MOF), clownfishes are widely traded globally due to their beautiful appearance and relative ease of maintenance the aquarium. There is large amount literature biology ecology, but s...

Event web site: http://www.oulu.fi/ltk/tutkimus/nobel Organizers: Faculty of Biochemistry and Molecular Medicine, Faculty of Medicine, Biocenter Oulu, and Medical Research Center Oulu More information: Peppi Karppinen, [email protected] Where: Lecture Hall K101, Aapistie 7A When: Oct 3, 11:30 – 13:30 To whom: University and Hospital personnel, researchers, students © The Nobel Foundation ...

In this study, two halophilic bacterial strains isolated from saline habitats in Argentina grew in the presence of gas oil. They were identified as Halomonas spp. and Nesterenkonia sp. by 16S ribosomal RNA sequencing. Chemotaxis towards gas oil was observed in Halomonas spp. by using swimming assays.

Gyrodactylus latus Bychowsky, 1933 (Monogenea, Gyrodactylidae) was found on fins of Cobitis elongatoides Bacescu et Maier, 1969 (Teleostei, Cobitidae) from tributaries of the Stobrawa River (Odra Basin, Silesia, Poland). It is new to the Polish parasite fauna; its description, measurements, and figures are presented.

The present study was aimed to investigate parasitic infection of an imported ornamental fish shubunkin, a variety of goldfish, Carassius auratus. The body weight and total length of fish ranged from 1.2-11.8 g and 3.311.6 cm respectively. Thirty fishes were examined, 19 fishes were found infected with one or more species of parasites. The prevalence was 63.33%. Five species of parasites belong...

Cryptic species complexes are common among parasites, which tend to have large populations and are subject to rapid evolution. Such complexes may arise through host-parasite co-evolution and/or host switching. For parasites that reproduce directly on their host, there might be increased opportunities for sympatric speciation, either by exploiting different hosts or different micro-habitats with...