Species Card of Copepod
Calanoida ( Order )
    Clausocalanoidea ( Superfamily )
        Aetideidae ( Family )
            Bradyidius ( Genus )
Bradyidius saanichi  Park, 1966   (F,M)
Ref.:
Park, 1966 (p.805, figs.F,M); Shih & al., 1971 (p.142); Bradford, 1976 a (p.6: Rem.); Gardner & Szabo, 1982 (p.206, figs.F,M); Othman & Greenwood, 1987 (p.1137); Markhaseva, 1996 (p.79, figs.F,M)
Species Bradyidius saanichi - Plate 1 of morphological figuresissued from : T.S. Park in J. Fish. Res. Bd. Canada, 1966, 23 (6). [p.806, Fig.1]. From Saanich Inlet, Vancouver Island.
Female: A, habitus (dorsal); B, idem (lateral left side); C, A1; D, rostrum; E, A2; F, Md; G, Mx1; H, Mx2; I, Mxp.

Nota: Head and 1st thoracic segment fused, 4th and 5th fused. Urosome: proportional lengths as 37:15:14:15:19.


Species Bradyidius saanichi - Plate 2 of morphological figuresissued from : T.S. Park in J. Fish. Res. Bd. Canada, 1966, 23 (6). [p.808, Fig.2].
Female: A, P1; B, P2; C, P3; D, P4.


Species Bradyidius saanichi - Plate 3 of morphological figuresissued from : T.S. Park in J. Fish. Res. Bd. Canada, 1966, 23 (6). [p.809, Fig.3].
Male: A, habitus (dorsal); B, idem (lateral right side); C, right A1; D, A2; E, Md; F, Mx1; G, Mxp; H, P1; I, P5 (anterior).

Nota: The mouthpart appendages are very reduced as compared with those of the female. The mandible blade is without a chewing edge. In Mx1 the 1st and 2nd inner lobes are devoid of setae or spines.


Species Bradyidius saanichi - Plate 4 of morphological figuresissued from : T.S. Park in J. Fish. Res. Bd. Canada, 1966, 23 (6). [p.810, Table 1].
Comparison of five species.


Species Bradyidius saanichi - Plate 5 of morphological figuresBradyidius saanichi female:
1 - Rostrum with divergent rami.
2 - Points of last thoracic segment not reaching posterior border of genital segment. Exopodal segment 2 of A2 with 2 setae. Exopodal segment 1 of P1 with external spine not reaching the base of external spine of segment 2.
3 - Posterior corners of last thoracic segment nondiverging. Points of last thoracic segment not reaching posterior border of genital segment.
4 - Rostral rami rather strongly divergent (compare with B. similis), obtuse angle in their base.


Species Bradyidius saanichi - Plate 6 of morphological figuresBradyidius saanichi male:
1 - P5 biramous.
2 - Endopod of left P5 1-segmented.
3 - Exopodal segment 1 of P1 with external spine.

Compl. Ref.:
Markhaseva, 1998 (p.250, Fig.2); Galbraith, 2009 (pers. comm.)
NZ: 1

Distribution map of Bradyidius saanichi by geographical zones
Loc:
NE Pacific (Vancouver Island: Saanich inlet, Alaska (Auke Bay).

Type locality: 48°40'N, 123°30'W.
N: 3
Lg.:
(215) F: 2,56-2,33; M: 2,24-2,01; {F: 2,33-2,56; M: 2,01-2,24}
Rem.: The species closely resembles B. pacificus (Brodsky, 1950).
Last update : 30/12/2014
    to add your remark
  

 Any use of this site for a publication will be mentioned with the following reference :

Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed October 14, 2024]

© copyright 2005-2024 Sorbonne University, CNRS

Webmaster
CNRS   Observatoire Océanologique de Banyuls sur Mer - Laboratoire Arago
Sorbonne Université

 

Version française
English version

 

Search

On the WEB of CNRS

 


Marine Planktonic Copepods

Marine Planktonic Copepods

 

Imprimer Contact Accueil Plan du site Accès restreint Retour Une du Labo Imprimer Contact Plan du site Crédits Téléchargez les Plug-Ins