Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Arietelloidea ( Superfamille )
        Discoidae ( Famille )
            Pertsovius ( Genre )
Pertsovius fjordicus  (Fosshagen, 1967)   (F,M)
Syn.: Disco fjordicus Fosshagen, 1967 (p.314, figs.F,M); Schulz, 1993 (p.200, figs.F, Rem.); Schulz, 2003 (p.110, Rem.); Boxshall & Halsey, 2004 (p.108, 109: fig.M)
Ref.:
Andronov & Kosobokova, 2011 (p.38, Rem.)
Espèce Pertsovius fjordicus - Planche 1 de figures morphologiquesissued from : K. Schulz in Mitt. Hamb. Zool. Mus. Inst., 1993, 90. [p.201, Fig.2 A-K]. With doubt.
Female (from Bay of Biscay): A, habitus (dorsal); B, idem (lateral left side); C, rostrum (ventral view); D, A2; E, Md (masticatory blade); F, Mx1; G, Mxp; H, P1; I, P2; J, P3; K, P4.
Scale bars = 0.100 mm.


Espèce Pertsovius fjordicus - Planche 2 de figures morphologiquesissued from : A. Fosshagen in Sarsia, 1967, 29. [p.315, Fig.4].
Female (from 60°2'30''N, 5°58'E): A-B, habitus (lateral and dorsal, respectively); C, rostrum (ventral view).

Nota: Rostrum large and obtusely rounded. 4th and 5th thoracic segments fused and rounded posteriorly. Urosome 4-segmented. Anal segment as long as the preceding segment. Caudal rami with 4 setae of unequal size.


Espèce Pertsovius fjordicus - Planche 3 de figures morphologiquesissued from : A. Fosshagen in Sarsia, 1967, 29. [p.316, Fig.5].
Female: A, A1; B, A2; C, Md; D, Mx1; E, Mx2; F, Mxp; G, P1; H, P2; I, P3; J, P4.

Nota: A1 25-segmented, reaching slightly beyond genital segment. A2: exopod longer than endopod; exopod 8-segmented, with 5 setae on inner border; endopod with prominent anterior part. Md: denticulate process with few spine-like teeth; exopod 4-segmented; endopod with 2 segments of nearly same length. Mx1: well-developed, with 6 lobes all furnished with setae; inner lobe with 6 masticatory spines; endopod with 8 setae. Mx2: 5 lobes with plumose setae; endopod with 1 plumose and 3 smooth setae. Mxp: moderately strong with few coarsely plumose setae along inner margin; endopod 5-segmented with 1 strong seta terminally; the 3 innermost segments of endopod carry fine spines on inner margin. Basipod of all swimming legs devoid of setae. P5 absent.


Espèce Pertsovius fjordicus - Planche 4 de figures morphologiquesissued from : A. Fosshagen in Sarsia, 1967, 29. [p.317, Fig.6].
Male: A-B, habitus (lateral and dorsal, respectively); C, distal part of left A1; D, Md; E, Mx1; F, Mx2; G, Mxp; H, P1; I, endopod and exopod of P2; J, P4 (terminal spine on exopod missing); K, P5.

Nota: head and 1st thoracic segment partly fused. Urosome 5-segmented. Left A1 geniculate, 20-segmented, sensory organs on each segment along the whole antenna. A2 and Md much as in female. Mx1, Mx2 and Mxp reduced. P5 biramous; right leg slightly longer than the left; both exopods 3-segmented, both endopods 2-segmented.

NZ: 1 + 1 douteuse

Carte de distribution de Pertsovius fjordicus par zones géographiques
Loc:
SW Norway, ? Bay of Biscay (in Schulz, 1993)
N: 2
Lg.:
(366) F: 0,56-0,49; M: 0,51; ? (367) F: 0,44; {F: 0,49-0,56; M: 0,51}
Rem.: mésopélagique.
Voir aussi les remarques en anglais
Dernière mise à jour : 28/01/2015

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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 24 septembre 2021]

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