Oncaea tregoubovi - Fiche d'espèce - Copépodes planctoniques marins

Oncaea tregoubovi Shmeleva, 1968 (F,M)

Taxonomy

Ordre Cyclopoida

détails

Famille Oncaeidae

détails

Genre Oncaea

détails liste des espèces pour ce genre

Abréviations ou symboles

Synonymie

Oncaea sp. L (part.) Böttger-Schnack, 1988.

Références

Liste des auteurs étudiés

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)

Figures

Planche 1 issued 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.

Species Oncaea tregoubovi - Planche 2 of morphological figures

Planche 2 issued 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.

Species Oncaea tregoubovi - Planche 3 of morphological figures

Planche 3 Issued 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.

Species Oncaea tregoubovi - Planche 4 of morphological figures

Planche 4 Issued 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.

Planche 5 Issued 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.

Références complémentaires

Liste des auteurs étudiés

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)

Distribution

NZ: 6

Carte de distribution de Oncaea tregoubovi par zones géographiques

Distribution map of Oncaea tregoubovi for the Zone Mediterranean Sea, Black Sea

Distribution map of Oncaea tregoubovi for the Zone Indian Ocean

Localisations

Glossaire géographique

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)

Citations

N: 16

Dimensions (mm)

Références de auteurs concernant les dimensions

(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}

Remarques

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