Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Diaptomoidea ( Superfamille )
        Pontellidae ( Famille )
            Calanopia ( Genre )
Calanopia media  Gurney, 1927   (F,M)
Ref.:
Gurney, 1927 (p.153, figs.F,M); Silas & Pillai, 1976 (p.789, figs.F, M, Rem.); Lakkis, 1984 (p.299, figs.F,M); Vives & Shmeleva, 2007 (p.493, figs.F,M, Rem.)
Espèce Calanopia media - Planche 1 de figures morphologiquesissued from : E.G. Silas & P.P. Pillai in J. mar. biol. Ass. India, 1973 (1976), 15 (2). [p.789, Fig.5].
Female (from Red Sea): a, urosome (dorsal); b, genital segment (ventral); c, urosome (lateral right side), d, P5.

Male: e, urosome (dorsal); f, right A1 (geniculate part); g, P5.
Scale as in Calanopia minor.


Espèce Calanopia media - Planche 2 de figures morphologiquesCalanopia media.
Female:
1 - P5 exopod 2-segmented.
2 - Cephalic lateral hooks absent.
3 - P5 symmetrical.
4 - Caudal rami symmetrical.
5 - 2nd exopodal segment of P5 longer than 1st one.
6 - 1st exopodal segment of P5 with 2 spines distally.
7 - Genital compound somite with ventral spines.
Male:
1 - Left P5 shorter than right one; basis of left P5 not swollen proximally.
2 - Prosomal posterolateral corner symmetrical.
3 - Cephalic lateral hooks absent.
4 - 2nd urosomite symmetrical and without any processes.
5 - 2nd exopodal segment of right P5 shorter than 1st one, curved at mid-length with 1 short and 1 long setae; basis of left P5 longer than 1st exopodal segment.


Espèce Calanopia media - Planche 3 de figures morphologiquesIssued from : R. Gurney in Trans. zool. Soc. London, 1927, 22. [p.152, Fig.20].
Female (Port Taufik): A, habitus (dorsal); B, abdomen (ventral); C, P5.

Male: D, habitus (dorsal); E, part of right A1; F, P5.

Nota female:
- Abdomen less than half length of thorax.
- Thoprax 2.5 times as long as broad.
- Last thoracic somite produced symetrically backwards as a pointed process, reaching nearly half length of genital somite.
- Abdomen of 2 somites.
- Genital somite longer than the anal somite (36 : 25). On right side, 2 small spines one above the other, and a small fold of the cuticle is, in some cases but not in all, present on the ventral surface on the right side. Genital operculum round.
- Furcal rami (= caudal rami) a little shorter than anal somite (19 : 21), either quite symmetrical, or right side with a somewhat indented inner margin.
- A1 reaches back to about middle of genital somite and consists of 17 segments.
- P5 symmetrical, 3-segmented. Basal segment fused with basal plate (= intercoxal sclerite). Basipodal segment 2 (= Basis) about same length as exopodal segment 1 , the latter bears 2 strong spines; 2nd exopodal segment with 2 outer spines, of which the proximal is very short, and is prolonged into a terminal spine which extends beyond distal outer spine by about 2/3 of length of latter.

Nota male:
- Relative lengths of thorax, abdomen and furca 63 : 30 : 11.
- Thorax as in female, 2.5 times as long as broad.
- Somites of abdomen symmetrical, without lateral processes.
- Furcal rami divergent to a variable extent, but usually so much so as almost to form a right angle.
- A1 reaches back to end of 2nd abdominal somite.
- Relative lengths of last 6 segments (= 5 somites + caudal ramus) 33 : 39 : 45 : 43 : 31 : 40.
P5 closely resembling those of C. elliptica, but without the scalloped edge to the broad subterminal segment of the right leg.


Espèce Calanopia media - Planche 4 de figures morphologiquesIssued from : R. Gurney in Trans. zool. Soc. London, 1927, 22. [p.154].
Relative lengths of cephalothorax, abdomen and caudal rami; and the genital double-somite and the 2nd abdominal somite. Comparison between Calanopia media, C. elliptica and C. minor females.

Ref. compl.:
Sewell, 1948 (p.441); Berdugo, 1968 (p.445); Lakkis, 1976 (p.83: Rem.); Kovalev & Shmeleva, 1982 (p.85); Moraitou-Apostolopoulou, 1985 (p.303, occurrence/abundance in E Mediterranean Sea, Rem.: p.313); Lakkis, 1990 (p.63); Mauchline, 1998 (p.507); Kovalev, 2006 (p.67: Lessepsian migration); Zenetos & al., 2010 (p.397).
NZ: 3

Carte de distribution de Calanopia media par zones géographiques
Loc:
E Medit. (Lebanon, off Haifa), Suez Canal, Red Sea, Viet-Nam (in Rose, 1956, p.461)
N: 7
Lg.:
(178) F: 2-1,7; M: 2-1,6; (256) F: 1,98-1,68; M: 1,95-1,6; {F: 1,68-2,00; M: 1,60-2,00}
Rem.: La présence de cette espèce près des côtes Israélo-libanaises serait dûe à une introduction par le Canal de Suez (Lessepsian migration).
Voir aussi les remarques en anglais
Dernière mise à jour : 17/04/2020

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 09 décembre 2021]

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