Sabatieria

Sabatieria	Contents	Rev: 11/09/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Sabatieria Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Comesomatidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Chromadorida: Comesomatoidea
Comesomatidae: Sabatieriinae
Sabatieria Rouville, 1903: Type species of the genus: Sabatieria cettensis Rouville, 1903

Synonyms:

Morphology and Anatomy:

Main characteristics:

small rouded head and narrow pharynx
labial and cephalic sensilla in an arrangement of 6+6+4; in 3 circles with setae of third circle longest
cuticle usually with transverse punctations; lateral differentiation of large regular or irregular dots;
amphidial fovea spiral with 1 to 3 or 4 turns
nterior buccal cavity cup-shaped, sometimes minute; posterior buccal cavity narrow, not cuticularised.

Ref: Botelho et al., 2009; Leduc, 2017

Females:

amhidelphic with gonads opposed and outstretched

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

Males:

dirochic with opposed and outstretched testes
spicules usually short, arcuate, enlarged in the proximal portion
gubernaculum usually with a dorso-caudal apophysis

A very common and species rich free-living marine genus in intertidal zone and continental slope regions, particularly sandy-silts in the upper rgions of the continental slope. Also found in deep sea regions. 69 valid species listed in 2014.

The White Sea is a small marginal shelf sea separated from the Arctic Ocean by the shallow and narrow Gorlo Strait. In its deepest regions (small depressions with a maximum depth of 343 m): the deep water is very cold (about -1.5 ï¿½C) and not fully saline (29.5-30.0 %). Samples collected at a depth of 251-288 m had 59 nematode morphotypes belonging to 37 genera and 18 families. he genera Sabatieria and Filipjeva dominated at all samples, followed by Aponema, Desmoscolex, and Quadricoma. The composition of the dominant genera is considered typical for this depth range in temperate and Arctic waters (Miljutin et al., 2014).

Sabatieria has been characterized as the most common dominant genus on the ocean shelf break. Often it has been recorded as one of the most abundant genera from the lower shelf to the medium slope and in canyons in the temperate and Arctic waters (Miljutin et al., 2014).

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Feeding:

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

Predator.

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Management:

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References:

Botelho, A.P., Da Silva, M.C., Sobral, L.D.T., Fonseca-Genevois., V.A. 2009. Two new species of Sabatieria Rouville (Nematoda: Comesomatidae) with conical-cylindrical tails, from Campos Basin, Rio de Janeiro, Brazil. Zootaxa 2096:82-98.

Leduc, D. 2013. Seven new species and one new species record of Sabatieria Nematoda Comesomatidae from the continental slope of New Zealand. Zootaxa 3693: 1-35.

Leduc, D. 2017. Four new nematode species (Araeolaimida: Comesomatidae, Diplopeltidae) from the New Zealand continental slope. Zootaxa 4237 (2): 244-264

Miljutin, D.M., Miljutina, M.A., Tchesunov, A.V., Mokievsky, V.O. 2014. Nematode assemblages from the Kandalaksha Depression (White Sea, 251ï¿½288 m water depth). Helgpland Marine Research 68:99-111.

Tsechunov, A.V. 2000. Several new and known species from the families Coninckiidae and Comesomatidae (Nematoda) in the White Sea, Hydrobiologia 435: 43-59.