Fish-parasitological investigations in Lake Balaton
Informations
- Funding country
Hungary- Acronym
- -
- Start date
- 4/1/2004
- End date
- 12/31/2007
- Budget
- 37,762 EUR
Fundings
| Name | Role | Start | End | Amount |
|---|---|---|---|---|
| Thematic Programme | Grant | 4/1/2004 | 12/31/2007 | 37,762 EUR |
Abstract
During the four-year research we will continue our monitoring-type fish parasitological and faunistic studies started earlier. In the course of this work we will collect data on the fish species of Lake Balaton, the Kis-Balaton reservoir and their inflow waters. By the use of experimental, histological and molecular biological techniques we will study the developmental cycle and relationships of myxosporean parasites of Lake Balaton fishes. We will collect data on the dynamics of infection by coccidian species and conduct experiments to determine which aqueous organisms, in addition to oligochaetes, may play a role in the seasonal appearance of nodular coccidiosis. The relationships of coccidian species parasitising Lake Balaton fishes will be studied by molecular biological methods. We will also study the intrapiscine development and pathological effects of blood-parasitic fluke species, as well as the occurrence of fluke larval stages developing in molluscs, in order to select the cercariae causing blood fluke infection and to identify the snail and shellfish species acting as possible intermediate hosts. We will pay especial attention to studying the parasites of fish that will get into Lake Balaton with the planned water supplementation. The parasite faunistic data collected during the four-year period will be summarised. Experiments will be conducted to study how anguillicolosis affects the body condition (migrating ability) of eels. A radiodiagnostic method will be used to determine the dynamics of swimbladder infection caused by Anguillicola crassus in individual eel specimens and the regenerating capacity of swimbladders.