Tortanus (Eutortanus) komachi - Fiche d'espèce - Copépodes planctoniques marins

Fiche d'espèce de Copépode

Calanoida ( Ordre )	détails
Diaptomoidea ( Superfamille )	détails
Tortanidae ( Famille )	détails
Tortanus ( Genre )	détails	Liste des espèces pour ce Genre
Eutortanus ( Sous-Genre )	détails

Tortanus (Eutortanus) komachi Itoh, Ohtsuka & Sato, 2001 (F,M)

Abréviations ou symboles

Ref.:

(

Liste des auteurs analysés )

Itoh & al., 2001 (p.60, figs.F,M); Andronov, 2014 (p.36, fig. A2)

Espèce Tortanus (Eutortanus) komachi - Planche 1 de figures morphologiques

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.61, Fig.1].
Female (from off S Akita): A-B, habitus (dorsal and lateral, respectively); C-D, prosomal end and urosome (dorsal and ventral, respectively); E-J, variability of prosomal end (dorsal view); K-P, idem (left lateral view); Q-V, idem (right lateral view); W, genital operculum.

Espèce Tortanus (Eutortanus) komachi - Planche 2 de figures morphologiques

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.62, Fig.2].
Female: A, A1; B, A2; C, Md; D, Md (mandibular cutting edge); E, Mx1 (minute setule indicated by arrow); F, Mx2; G, Mxp.

Espèce Tortanus (Eutortanus) komachi - Planche 3 de figures morphologiques

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.63, Fig.3].
Female: A-E, P1 to P5 (anterior surface).

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.60].
Female : Armament of the swimming legs P1 to P4. Roman numeral = spine; arabic numeral = seta.

Espèce Tortanus (Eutortanus) komachi - Planche 5 de figures morphologiques

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.64, Fig.4].
Male: A, habitus (dorsal); B, prosomal end and urosome (dorsal); C, 4th and 5th urosomites, anal somite, and caudal rami (ventral); D, right A1 (ventral view); E, right A1: segments XI-XV (dorsal view); F-I, variability of maxillular praecoxal arthrite (variable portion indicated by arrows).

Espèce Tortanus (Eutortanus) komachi - Planche 6 de figures morphologiques

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.65, Fig.5].
Male: A, P5 (anterior view); B, right P5 (posterior view).

Issued from : V.N. Andronov in Russian Acad. Sci. P.P. Shirshov Inst. Oceanol. Atlantic Branch, Kaliningrad, 2014. [p.36, Fig.9, 10]. Tortanus komachi after Itoh & al., 2001.
10, exopod of A2.

NZ:

Carte de distribution de Tortanus (Eutortanus) komachi par zones géographiques

Espèce Tortanus (Eutortanus) komachi - Carte de distribution 2

issued from : H. Itoh, S. Ohtsuka & T. Sato in Plankton Biol. Ecol., 2001, 48 (1); [p.66, Fig.6].
horizontal distribution of species of the subgenus Tortanus (Eutortanus) around the Japan Sea, redrawn after Ohtsuka (1999); current system modified from Uda (1934).
In T. terminalis and T. komachi symbol indicates collected site, whereas in others the distributions are schematically exhibited.
The speciation of the six known species might have occured in the ancient East China Sea Gulf with low salinity water during the Middle Miocene to the Pleistocene, and relatively recently members of the subgenus may have secondarily expanded their distributions in the neighboring waters of the East China Sea.

Loc:

(

Glossaire géographique )

Sea of Japan (NW Japan )

Lg.:

(

Références des auteurs concernant les dimensions )

(923) F: 2,78-3,28; M: 2,43-2,50; {F: 2,78-3,28; M: 2,43-2,50}

Rem.:

Found in the stomac contents of juvenile chum salmon (Onchorhynchus keta). Depth: 20 m. Coast.
Voir aussi les remarques en anglais

Dernière mise à jour : 18/04/2016