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
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2020. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed December 03, 2020]

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