Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Stephidae ( Famille )
            Stephos ( Genre )
Stephos longipes  Giesbrecht, 1902   (F,M)
Syn.: Stephus longipes Giesbrecht, 1902 (p.20, figs.F,M); Wolfenden, 1908 (p.23, figs.F,M); 1911 (p.205, Rem.); Farran, 1929 (p.208, 226); Sewell, 1948 (p.574); Fukuchi & Tanimura, 1981 (p.37); Hoshiai & Tanimura, 1981 (p.44); Kawaguchi & al., 1986 (tab.2); Zmijewska, 1987 (tab.2a); Knox & al., 1996 (tab.1)
Ref.:
Brady, 1918 (p.24, figs.F, juv.M); Tanaka, 1960 (p.37, figs.M, Juv.F ); 1964 (p.7); Zvereva, 1972 (1975) (p.254, figs.F,M); Bradford-Grieve, 1999 a (p.25, Table1: Rem.; Costanzo & al., 2002 (p.855, figs. N); Michels & Schnack-Schiel, 2005 (p.483, fig.6: Md); Park & Ferrari, 2009 (p.143, Appendix 1)
Espèce Stephos longipes - Planche 1 de figures morphologiquesFemale: 1, P5; issued from : Zvereva, 1972. 2, genital segment and P5 (lateral view); Urosome (dorsal view); issued from Giesbrecht, 1902.
Male: 4, habitus (dorsal view); 5, P5 (G: left, Dt: right); issued from : Giesbrecht, 1902. 6, habitus (lateral view); 7, anal segment and Furca; issued from : Tanaka, 1960.


Espèce Stephos longipes - Planche 2 de figures morphologiquesissued from : J.A. Zvereva in Issled. Fauny Moreï, 1972, 12 (20). [p.219, Fig.2, 1-2]. As Stephus longipes.
Female (Antarctic coast): 1, P5.

Male: 2, P5.


Espèce Stephos longipes - Planche 3 de figures morphologiquesissued from : J. Michels & S.B. Schnack-Schiel in Mar. Biol., 2005, 146. [p.488, Fig.6].
Mandibular gnathobase.
a, b: Female (from Weddell and Bellingshausen Seas);
c, Male.
a, b: left gnathobase from cranial; c: right gnathobase from caudal. V: ventral tooth, C1-C4: central teeth, D1-D3: dorsal teeth, B: dorsal bristle, arrow: the hole-like cut-out..
Scale bars 0.020 mm.
Nota: The life cycle is partly associated with the sea ice (Schnack-schiel & al., 1995, 1998, 2001). Feeding experiments and analyses of faecal pellets have shown that the species feeds on ice algae (Kurbjeweit & al., 1993; Schnack-Schiel & al., 1995). The late cipepodite stages (especially the stage 4) settle down in deep water layers, perhaps even to the sediment, and overwinter there. Since the species uses triglycerols to store energy, it is probable that this species feeds during the whole year (Schnack-Schiel & al., 1995). The authors suggest that the copepodite stage 4 lives partly associated with the sediment in the benthal during winter and feeds on phyto- and zooplankton and detritus.


Espèce Stephos longipes - Planche 4 de figures morphologiquesissued from : W. Giesbrecht in Copepoden. Res. voyage du S. Y. Belgica. Rapports scientifiques, Zoologie, 1902. [Taf. II, Figs. 6-14]. As Stephus longipes.
Female: 7, urosome (dorsal); 8, last thoracic segment and genital segment (lateral); 9, A1; 10, Md (cutting edge of gnathobase); 11, P4; 12, P5.

Male: 6, habitus (dorsal); 13, P5.

Copepodid Male: 14, P5.

sin = left; dex = right; B1 = basipodite 1; B2 = basipodite 2.

Ref. compl.:
Schnack & al., 1985 (p.256, fig.4); Tucker & Burton, 1990 (tab.1); Kurbjeweit & al., 1993 (p.255); Menshenina & Melnikov, 1995 (p.128); Schnack-Schiel & al., 1998 (p.173); Atkinson, 1998 (p.294); Elwers & Dahms, 1998 (p151); Razouls & al., 2000 (p.343, tab. 3, 5, Appendix); Fuentes & Schnack-Schiel, 2005 (p.253); Deibel & Daly, 2007 (p.271, Table 6a, Rem.: Antarctic polynyas); Guglielmo & al., 2007 (p.747, Table 4, 5); Schnack-Schiel & al., 2008 (p.1046: Tab.2); Schnack-Schiel & al., 2008 (p.1056, Table 1, 2, 4, fig.7); Kiko & al., 2008 (p.1000, Table 3, fig.4); Loots & al., 2009 (p.599, fig.8)
NZ: 2

Carte de distribution de Stephos longipes par zones géographiques
Loc:
Antarct. (King George Is., Péninsule, Croker Passage, Syowa station, Mer de Weddell, Kapp Norvegia, Halley Bay, S Indian Ocean, SE Pacif., Ross Sea, McMurdo Sound, Station Davis, Terra Nova Bay, Dumont d'Urville ), off Southern Afr. S
N: 40
Lg.:
(10) F: 0,8-0,75; (32) F: 0,8-0,75; M: 0,7-0,65; (35) F: 0,96-0,72; M: 0,9-0,78; (66) M: 0,87; (114) F: 0,85; {F: 0,72-0,96; M: 0,65-0,90}
Rem.: Sampling depth (Antarct.) : 0-1000 m.
Dernière mise à jour : 02/09/2012

 Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :

Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2012. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Disponible sur http://copepodes.obs-banyuls.fr 
[Accédé le 19 mai 2013]

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