Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Diaptomoidea ( Superfamille )
        Tortanidae ( Famille )
            Tortanus ( Genre )
                Atortus ( Sous-Genre )
Tortanus (Atortus) rubidus  Tanaka, 1965   (F,M)
Tanaka, 1965 (p.398, Descr.M, figs.M); Bowman, 1971 a (p.527); Ohtsuka & Kimoto, 1989 (p.398, Descr.F, Redescr.M, figs.F,M); Ohtsuka,1992 a (p.265); Chihara & Omori, 1997 (p.926, Pl.188,189: F,M); Barthélémy & al., 2003 (p.25, figs.F: genital somite).
Espèce Tortanus (Atortus) rubidus - Planche 1 de figures morphologiquesissued from : O. Tanaka in Publs Seto Mar. Biol. Lab., 1965, XII (5). [p.399, Fig.251].
Male: a, habitus (dorsal); b, forehead (left lateral side); c, last thoracic segment and urosome (right lateral side); d, middle portion of clasping of A1; e, P5; f, P5 (juvenile).

Espèce Tortanus (Atortus) rubidus - Planche 2 de figures morphologiquesissued from : S. Ohtsuka & K. Kimoto in J. Crustacean Biol., 1989, 9 (3). [p.401, Fig.7].
Female (from Shijiki Bay, Japan): A, habitus (dorsal); B, 5th pediger and urosome (lateral left side); C, idem (dorsal); D, genital segment (ventral); E, A1; F, P5 (anterior).

Espèce Tortanus (Atortus) rubidus - Planche 3 de figures morphologiquesissued from : S. Ohtsuka & K. Kimoto in J. Crustacean Biol., 1989, 9 (3). [p.403, Fig.9].
Male (from Shijiki Bay): A, habitus (dorsal); B, urosome (dorsal); C, 2nd urosomal segment ( ventrolateral view); D-E, urosome (dorsolateral view); F, right A1 (segments 14-21); G, P5 (anterior); H, right P5 (posterior).

Espèce Tortanus (Atortus) rubidus - Planche 4 de figures morphologiquesissued from : S. Ohtsuka & K. Kimoto in J. Crustacean Biol., 1989, 9 (3). [p.402, Fig.8];
Male (from Sagami Bay, Japan): A, urosome (dorsolateral view); B, P5 (anterior).

Espèce Tortanus (Atortus) rubidus - Planche 5 de figures morphologiquesissued from : S. Ohtsuka & R. Huys in Hydrobiologia, 2001, 453/454. [p.457, Fig.11, A-B].
Female (from Japan): A-B, ventral view of urosome, covered by complex spermatophore (two different specimens).
s: spermatophore; c, caudal rami; large arrow: opening of spermatophore from which fertilized eggs may be released; small arrow: rudimentary P5.
Scale bars = 0.1 mm.

Nota: The species with a rudimentary plate-like P5 (indicated by small arrow) have a complex coupling device on the spermatophore which almost entirely covers the urosome of the female, and is not readily detached from it using dissecting needles. A spermatophore so firmly glued onto the female urosome may remain on it after all egg clutches have been fertilized within the genital atrium (Barthélémy & al., 1998) and released. A large pore (about 0.00 mm) in diameter is present on the ventral side of the spermatophore (indicated by large arrow), beneath which the gonopore is located. This pore seems to be the only opening for releasing the fertilized eggs.

Ref. compl.:
Shimode & Shirayama, 2004 (tab.2); Nishida & Cho, 2005 (p.232, Fig.4: chart)
NZ: 1

Carte de distribution de Tortanus (Atortus) rubidus par zones géographiques
Espèce Tortanus (Atortus) rubidus - Carte de distribution 2issued from : S. Ohtsuka & K. Kimoto in J. Crustacean Biol., 1989, 9 (3). [p.404, Fig.10].
Distribution of several species of the subgenus Atortus. Localities: 1, Poseta Bay; 2, Sagami Bay; 3, Tanabe Bay; 4, Shijiki Bay; 5, Shibushi Bay; 6, Ryukyu Islands; 7, Pago Pago Harbor, Samoa; 8, Palau Tiga, Sabah; 9, Saleyer Anchorage; 10, Nankauri Harbor, Nicobars.
Japan (Sagami Bay, Tanabe Bay, Shijiki Bay)
N: 3
(119) M: 2,3-2,09; (642) F: 2,37; 2,33; M: 2,11-1,92; M: 2,1; 2,02; {F: 2,02-2,37; M: 1,92-2,30}
Rem.: For Nishida & Cho (2005, p.229) this species belongs in the subgenus Atortus to the ''species complex tropicus''.
Dernière mise à jour : 18/09/2018

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2024. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur [Accédé le 22 avril 2024]

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