Lucionema balatonense

Lucionema balatonense	Contents	Rev 10/24/2022
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Lucionema menu		Ecosystem Functions and Services
	Distribution	Management
Return to Lucionematidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Rhabditida: Spirurina
Dracunculoidea
Lucionematidae

Lucionema balatonense Moravec, Molinar, & Szekely, 1998

Morphology and Anatomy:

Small fusiform nematodes
Cuticle thin, whitish, almost smooth
Head end rounded
Oral aperture small, triangular, surrounded by 8 submedian cephalic papillae in two circles and a pair of circular amphids.
Esophagus muscular throughout, somewhat enlarged anteriorly.; posterior part with 3 cells with large nuclei.
Esophagus opening to intestine through large valve.
Tail of both sexes conical, long, with pointed tip.

Female:

Rectum short, anus functional.
Monodelphic, vulva near mid-body.
Uterus prodelphic, running to level of end of esophagus then reflexed to a level posterior to vulva.
Ssingle ovary extending posteriorly from level of posterior part of intestine to mid-tail region.
Eggs develop to juveniles in uterus
Viviparous

Males:

Two pairs of subventral postcloacal papillae
Unpaired, sclerotized copulatory plate which apparently substitutes the function of spicules.
No spicules

Ref: Moravec et al., 1998

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

The genus Lucionema was described for a single species, Lucionema balatonense, a parasite of the swimbladder of the European pikeperch, Stizostedion lucioperca, from Lake Balaton in Hungary (Moravec et al., 1998).

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Feeding:

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Biology and Ecology:

Apparently sensitive to osmotic pressures. Has escaped notice due to small size and being embedded in wall of swimbladder (Moravec et al., 1998).

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Life Cycle:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

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Ecosystem Functions and Services:

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Management:

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References:

Moravec, F., Molinar, K. and Szekely, C. 1998. Lucionema balatonense gen. et sp. n. , a new nematode of a new family Lucionematidae fam.n. (Dracunculoidea) from the swim bladder of the European pikeperch, Stizostedion lucioperca (Pisces). Folia Parasitologica 45:57-61