Cystidicola

Cystidicola	Contents	Rev: 02/20/2024
Swimbladder Nematode	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Cystidicola Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Cystidicolidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Chromadorea
Chromadoria
Rhabditida: Spirurina
Habronematidea
Cystidicolidae

Cystidicola Fischer, 1798

Parasites of the swimbladder of fish

Synonyms:

Morphology and Anatomy:

Females:

Body size range for the species of this genus in the database - Click:

Males:

Feeding:

Swimbladder parasites of fish.

Cystidicola sp in the fish swimbldder (photograph from fishpathogens.net)

The trehalose level of Cystidicola farionis from the swimbladdedr of European smelt was almost four times higher in adult nematodes than in larvae. In contrast, the activity of both enzymes (trehalose 6-phosphate synthase, TPS and trehalose 6-phosphate phosphatase, TPP) involved in the synthesis of trehalose was higher in larvae than in adults under optimal conditions.

The optimum pH for TPS isolated from larvae and adults was pH 7.0. The optimum pH for TPP from larvae and adults was pH 7.0 and pH 8.0, respectively. The optimal temperature was 20 Â°C, and Mg²⁺ ions were an activator for trehalose-synthetizing enzymes from both sources.

The dynamic transformation of trehalose in the nematode developing inside the swim bladder of the smelt appears to be an important metabolic pathway in the nematode survival strategy. (Dmitrijyuk et al., 2022).

Back to Top

Life Cycle:

For Ecophysiological Parameters for this genus, click

Back to Top

Ecosystem Functions and Services:

Back to Top

Management:

Back to Top

References:

Dmitrijyuk, M., Szczotko, M., Kubiak, K., Dziekonska-Rynko, J., Cichoka, J., Hliwa, P., Mierzejewska, K. 2022. Cystidicola farionis, a Swim Bladder Parasite of European Smelt: Characterization of the Nematode Trehalose Strategy. Int. Jour. Env. Public Health 19:6430; https://doi.org/10.3390/ijerph19116430

Ko, R.C.; Anderson, R.C. 1969. A revision of the genus Cystidicola Fischer, 1798 (Nematoda: Spiruroidea) of the swim bladder of fishes.. Journal of the Fisheries Research Board of Canada. 26:849-864.

Smith, J.D., Lankester, M.W. 1979. Development of swim bladder nematodes (Cystidicola spp.) in their intermediate hosts. Can. J. Zool. 57:1736-1744.