Fiche d'espèce de Copépode
Cyclopoida ( Ordre )
    Oncaeidae ( Famille )
        Oncaea ( Genre )
Oncaea tregoubovi  Shmeleva, 1968   (F,M)
Syn.: Oncaea sp. L (part.) Böttger-Schnack, 1988.
Ref.:
Shmeleva, 1968 (p.1784, figs.F,M); 1969 (p.13, figs.F,M); Malt, 1982 (p.185, Redescr.F, figs.F); Böttger-Schnack, 1990 a (p.476, 478, 480); Huys & Böttger-Schnack, 2007 (p.95, Redescr.F,M, figs.F,M, Table 2, 3, 4); Vives & Shmeleva, 2010 (p.323, figs.F,M, Rem.); Böttger-Schnack & Machida, 2011 (p.111, Table 1, 2, fig.2, DNA sequences, phylogeny)
Espèce Oncaea tregoubovi - Planche 1 de figures morphologiquesissued from : A.A. Shmeleva in Bull. Inst. océanogr. Monaco, 1969, 68, n° 1393. [p.14, Fig.10].
Female (from S Adriatic Sea): a, habitus (dorsal); b, urosome (dorsal); c, A1; d, A2; f-i, P1 to P4.


Espèce Oncaea tregoubovi - Planche 2 de figures morphologiquesissued from : A.A. Shmeleva in Bull. Inst. océanogr. Monaco, 1969, 68, n° 1393. [p.11, Fig.3].
Male: a, habitus (dorsal); b, urosome (dorsal); c, A1; d, A2; e, Mxp; f-h, P1 to P3; i, endopod of P4.


Espèce Oncaea tregoubovi - Planche 3 de figures morphologiquesIssued from : S.J. Malt in Bull. Br. Mus. nat. Hist. (Zool), 1982, 42 (3). [p.195, Fig.1].
Female (from 20°N, 21°W): a, habitus (dorsal); b, urosome (dorsal); c, A1; d, A2; e, Md; f, Mx1; g, Mx2; h, Mxp; i, P5.

Female : Ratio of prosome : urosome 1.8 : 1.
- 3rd prosomal segment without a dorsal projection.
- Head (1st prosomal division) 1.3 times longer than wide.
- Proportional lengths of urosome and caudal rami 8 : 57 : 5 : 4 : 13 : 13.
- Genital apparatus located on dorsal surface anterior to midpoint of genital segment ; each area armed with a setule.
- Caudal rami twice as long as wide.
- A1 6-segmented ; ratio of segment lengths 10 : 13 : 46 : 13 : 8 : 10.
- A2 3-segmented ; 1st segment bearing 1 long pinnate seta distally ; 2nd segment bearing a row of denticles along internal surface ; terminal segment longer than 2 nd and bearing 5 curved spines and 2 curved setae.
- Md bearing 5 elements : a stout seta on external surface, 2 broad blades, 1 long and hirsute, the other small and unarmed.
- Mx1 bilobed ; bearing1 seta on internal surface ; 2 setae on internal lobe and 2 setae, a setose seta and a spine on external lobe.
- Mx2 2-segmented ; 2nd segment produced distally as an elongate, curved, bilaterally spinulose claw ; also having an external pinnate seta and an internal bilaterally spinulose element.
- Mxp 4-segmented ; 1st segment unarmed ; internal surface of 2nd segment with 2 spines, distal spine bidentate ; 3rd segment reduced ; terminal segment produced as a long claw and armed with a row of setules on concave surface, an internal basal spine and an external basal setule.
- P5 comprising a small cylindrical segment bearing a single terminal seta on body surface near leg.


Espèce Oncaea tregoubovi - Planche 4 de figures morphologiquesIssued from : S.J. Malt in Bull. Br. Mus. nat. Hist. (Zool), 1982, 42 (3). [p.196, Fig.2].
Female: a, P1; b, P2 (damaged); c, P3; d, P4.

Nota : External spines of exopodites bilaterally serrate. Terminal spines of exopodites longer than terminal segments bearing them but terminal spines of endopodites shorter than terminal segments ; each terminal ; spine borderede by a serrate membrane unilaterally ; endopodites of P1-P3 terminate in conical projections ; all setae on legs plumose.


Espèce Oncaea tregoubovi - Planche 5 de figures morphologiquesIssued from : S.J. Malt in Bull. Br. Mus. nat. Hist. (Zool), 1982, 42 (3). [p.166].
Female: Armature of the swimming legs P1 to P4.

Ref. compl.:
Kovalev & Shmeleva, 1982 (p.86); Böttger-Schnack & al., 1989 (p.1089) ; Böttger-Schnack, 1992 (p.304); 1994 (p.277); 1995 (p.92); 1997 (p.409); Hure & Krsinic, 1998 (p.104); Krsinic, 1998 (p.1051); Böttger-Schnack & al., 2001 (p.1029, tab.1, 2); Krsinic & Grbec, 2002 (p.127, tab.1); Nishibe & al., 2009 (p.491, Table 1: seasonal abundance); Böttger-Schnack & Schnack, 2009 (p.131, Table 3, 4); Uysal & Shmeleva, 2012 (p.909, Table I)
NZ: 6

Carte de distribution de Oncaea tregoubovi par zones géographiques
Loc:
off N Cape Verde Is., Medit. (Alboran Sea, Balearic Basin, S Adriatic Sea, South of Crete, Lebanon Basin), G. of Aqaba, Red Sea (N-S), Gulf of Aden, Equatorial Indian Ocean, Japan (Tosa Bay), Oyashio region, NE Pacific (off Monterey, California)
N: 16
Lg.:
(680) F: 0,37-0,31; (685) F: 0,33; M: 0,33; (788) F: 0,31-0,28; M: 0,3-0,29; (1011) F: 0,33 [N Red Sea]; 0,34-0,36 [G. of Aqaba]; 0,37 [Adriatic Sea]; 0,32-0,33 [Equatorial Indian Ocean]; 0,35-0,36 [NW Pacific, Kuroshio extension]; 0,38-0,40 [NW Pacif., Oyashio region]; 0,36 [off Monterey, California]; M: 0,31-0,34 [S-N Red Sea]; {F: 0,28-0,40; M: 0,29-0,34}
Rem.: Cette espèce montre des situations bathymétriques très variables (300-400 m en Adriatique S, 0-450 m en Mer Rouge, 200-300 m en Adriatique et 2980-3560 m en Atlantique)
Voir aussi les remarques en anglais
Dernière mise à jour : 22/12/2016

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2020. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 01 décembre 2020]

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