Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Diaptomoidea ( Superfamille )
        Acartiidae ( Famille )
            Acartia ( Genre )
                Acanthacartia ( Sous-Genre )
Acartia (Acanthacartia) tropica  Ueda & Hiromi, 1987   (F,M)
Syn.: Acartia plumosa : Sewell, 1932 (p.395); 1934 (p.80); Wellershaus, 1969 (part., p.271, figs.70, 75, no 66, 67.); Abraham, 1970 (p.115, figs.1, 3); Tranter & Abraham, 1971 (p.224, figs.2 Af, 2 Bf).
Ref.:
Ueda & Hiromi, 1987 (p.233, figs.F,M).
Espèce Acartia (Acanthacartia) tropica - Planche 1 de figures morphologiquesissued from : H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.227, Fig.2, g-h].
Female (from Chao Praya River mouth, Thailand): g, h, posterior metasome and urosome (dorsal and lateral, respectively).
Nota: Armature on posterior corner of metasome similar to that of A. sinjiansis, but spines at ventralmost locus nearly as large as those at dorsalmost locus; each locus with 0-3 (usually 1 or 2) spines. Genital segment with 9-18 spines on posterodorsal margin; these spines not grouped at loci but evenly distributed; ventral surface with sevral rows of very minute hair-like spinules. 2nd urosomal segment with 6-10 posterodorsal spines; medial 2 spines larger than lateral ones and larger than spines on genital segment. Urosomal segment 3 with ventrolateral hairs. Caudal rami Length/width 1.9-2.2. A1 with 1 rowof spinules on each ventral surface of 9th to 12th segments.


Espèce Acartia (Acanthacartia) tropica - Planche 2 de figures morphologiquesissued from: H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.228, Fig.3, c, e, h].
Female: c, forehead (ventral); e, right A1 (8th-13th segments, ventral view); h, P5 (ventral view).


Espèce Acartia (Acanthacartia) tropica - Planche 3 de figures morphologiquesissued from : H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.229, Fig.4, f-g].
Male: f, g, urosome (dorsal and lateral, respectively).
Nota: Urosomal segment 2 with 11-12 spines on posterodorsal and posterolateral margins; lateral spines not smaller than dorsal ones; ventral surface with spines at 2 loci on each side, each locus with 1-3 spines. 3rd and 4th urosomal segments with 4-8 and 4-6 posterodorsal spines, respectively (sometimes 4 loci can be distinguished on both segments); these spines usually larger than those on 2rd urosomal segment. Anal segment with ventrolateral hairs. Caudal rami Length/width 1.1-1.3.


Espèce Acartia (Acanthacartia) tropica - Planche 4 de figures morphologiquesissued from : H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.231, Fig.5, d].
Male: d, P5 (anterior view).


Espèce Acartia (Acanthacartia) tropica - Planche 5 de figures morphologiquesissued from : H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.235, Table I].
Comparative list of characters in the Acartia plumosa - sinjiensis - tropica species group.


Espèce Acartia (Acanthacartia) tropica - Planche 6 de figures morphologiquesIssued from : S. Wellershaus in Veröf. Inst. Meeresf. Bremerhaven, 1969, XI. [p. 271, Fig. 70]. As Acartia (Acanthacartia) plumosa after Ueda & Hiromi, 1987.
Female (from Cochin Backwater, area between outlet and Aroor Bridge): 70, last thoracic segment and urosome (dorsal).

Nota:
- Anal operculum without spines.
- Caudal rami length : breadth = 10 : 6.

- Eye of both sexes generally rd, pink or blue, sometimes colourless.

Ref. compl.:
Ramaiah & al., 1996 (p.1); Ramaiah & Nair, 1997 (tab.1); Achuthankutty & al., 1998 (p.1, Table 2, fig.5, seasonal abundance vs monsoon); Madhu & al., 2007 (p.54, Table 4, abundance vs monsoon).
NZ: 1

Carte de distribution de Acartia (Acanthacartia) tropica par zones géographiques
Espèce Acartia (Acanthacartia) tropica - Carte de distribution 2
Carte de 1996
Espèce Acartia (Acanthacartia) tropica - Carte de distribution 3issued from : H. Ueda & J. Hiromi in Crustaceana, 1987, 53 (3). [p.232, Fig.6].
Distribution of the three species A. plumos, A. sinjiensis, A. topica.
Espèce Acartia (Acanthacartia) tropica - Carte de distribution 4issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.8, Fig.6].
Salinity ranges for A. tropica in coastal and estuarine waters of Goa (India).
Shaded area indicates the range of higher abundance.
Espèce Acartia (Acanthacartia) tropica - Carte de distribution 5issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.6, Fig.5].
Monthly occurrence of Acartia tropica in coastal (black circle) in front of Goa and and the Mandovi estuary (clear circle).
Loc:
India (Cochin, Kerala, Bombay, Goa, Burhabalanga estuary, Salt Lakes, Bay of Bengal, Chao Praya River mouth (Thailand)
N: 9
Lg.:
(93) F: 1,04-0,93; M: 0,88-0,83; {F: 0,93-1,04; M: 0,83-0,88}
Rem.: saumâtre.
Voir aussi les remarques en anglais
Dernière mise à jour : 22/07/2019

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Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2020. - Diversité et répartition géographique chez les Copépodes planctoniques marins. Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 28 septembre 2020]

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