Species Card of Copepod
Calanoida ( Order )
    Spinocalanoidea ( Superfamily )
        Spinocalanidae ( Family )
            Spinocalanus ( Genus )
Spinocalanus antarcticus  Wolfenden, 1906   (F,M)
Syn.: Spinocalanus magnus (part.) : Brodsky, 1950 (1967) (p.125);
? Spinocalanus sp. Johnson, 1963;
Spinocalanus magnus : Bradford, 1971 b (p.18, figs.F,M); Vidal, 1971 a (p.18, 23, figs.F,M)
Ref.:
Wolfenden, 1906 (p.43, figs.); 1911 (p.217, figs.F); Sewell, 1948 (p.569, 573, 574); Vervoort, 1957 (p.42: Rem.); Damkaer, 1975 (p.30, figs.F,M, Rem.); Brodsky & al., 1983 (p.260, figs.F,M, Rem.); Bradford-Grieve, 1994 (p.103, figs.F,M); Bode & al., 2017 (p.600, Table I, III, fig. 2, 3, 4, morphology vs genetic).
Species Spinocalanus antarcticus - Plate 1 of morphological figuresissued from : Brodsky K.A., Vyshkvartseva N.V., Kos M.S. & Markhaseva E.L. in Opred. Faune SSSR, 1983, 135. [p.261, Fig.120].
Female.
Gn = genital field (ventral aspect); Abd = urosome.


Species Spinocalanus antarcticus - Plate 2 of morphological figuresissued from : Brodsky K.A., Vyshkvartseva N.V., Kos M.S. & Markhaseva E.L. in Opred. Faune SSSR, 1983, 135. [p.262, Fig.121];
Male.
np = right.


Species Spinocalanus antarcticus - Plate 3 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.3, Fig.43; p.31, Fig.45-49].
Female: 43, genital somite (ventral); 45, habitus (dorsal); 46, idem (left lateral side); 47, A1; 48, Mx1; 49, Mxp.


Species Spinocalanus antarcticus - Plate 4 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.30, Fig.44; p.32, Fig.50-56; p.63, Fig.151].
Female: 44, A2; 50, Md; 51, masticatory edge of Md; 52, Mx2; 53, P1; 54, P2; 55, P3; 56, P4; 151, terminal segments of A1.


Species Spinocalanus antarcticus - Plate 5 of morphological figuresissued from : D.M. Damkaer in NOAA Technical Report NMFS CIRC-391, Seattle, 1975. [p.34, Fig.57-67].
Male: 57, habitus (dorsal); 58, idem (left lateral side); 59A1; 60, masticatory edge of Md; 61, gnathobase of Mx1 (reduced, 6 outer blunt processes + 3 proximal moderately sharp nude setae); 62, Mxp; 63, P1; 64, P2; 65, P3; 66, P4; 67, P5.


Species Spinocalanus antarcticus - Plate 6 of morphological figuresissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [218, Fig.9].
Female: a-b, habitus (dorsal and lateral, respectively).


Species Spinocalanus antarcticus - Plate 7 of morphological figuresissued from : R.N. Wolfenden in Plankton Studies Part II. Copepoda. 1906 [Pl.XIV, 6-7, 8-9].
Female: 8-9, habitus (lateral and dorsal, respectively).

Male: 6, habitus (lateral); 7, P5.


Species Spinocalanus antarcticus - Plate 8 of morphological figuresIssued from : J.M. Bradford in N.Z. Oceanogr. Inst., 1971, 206, Part 8, No 59. [p.17, Figs.28, 29]. As Spinocalanus magnus.
Female (from 75°09'S, 171°00'W): 28, P1; 29, P4.

Nota: 3rd exopodal segment of P1 with a patch of small spinules on the posterior surface.

Compl. Ref.:
Shih & Laubitz, 1978 (p.49); Buchanan & Sekerak, 1982 (p.41, Table 2: vertical distribution); Kosobokova, 1989 (p.26); Sirenko & al., 1996 (p.349); Kosobokova & al., 1998 (tab.2); Razouls & al., 2000 (p.343, tab. 4, 5, Appendix); Kosobokova & Hirche, 2000 (p.2029, tab.2); Kosobokova & al., 2002 (p.503, feeding, gut); Auel & Hagen, 2002 (p.1013, tab.2); Hopcroft & al., 2005 (p.198, table 2); Blachowiak-Samolyk & al., 2007 (p.2716, Table 2); Blachowiak-Samolyk & al., 2008 (p.2210, Table 3, biomass); Schnack-Schiel & al., 2008 (p.1046: Tab.2); Wishner & al., 2008 (p.163, Table 2, figs. 8, 12, zonation-oxycline, feeding: p.186); Park & Ferrari, 2009 (p.143, Table 4, 6: bipolar distribution, Appendix 1, biogeography); Kosobokova & Hopcroft, 2010 (p.96, Table 1, fig.7); Kosobokova & al., 2011 (p.29, Table 2, figs.4, 8, Rem.: Arctic Basins); Sano & al., 2013 (p.11, Table 6, Rem.: p.21, food habits) ; Smoot & Hopcroft, 2016 (p.1, fig.7, vertical distribution)
NZ: 4

Distribution map of Spinocalanus antarcticus by geographical zones
Species Spinocalanus antarcticus - Distribution map 3
Chart of 1996
Loc:
Antarct. (Weddell Sea, Indian: continent), Arct. (Fram Strait, Spitsbergen, Central Basin, E Beaufort Sea, Laptev Sea, Nansen Basin, Amundsen Basin, Makarov Basin, Lomonosov Ridge, Canadian abyssal plain), Canada Basin, W Baffin Bay), SE Atlant. (25°S), Arabian Sea
N: 23
Lg.:
(13) F: 3-2,25; M: 2,32-1,66; (102) F: 2,6-2,35; (131) F: 3,15-2,25; M: 2,32-1,66; (239) F: 2,3-2,25; (377) F: 3-2,03; (1252) F: 2,55-2,83; {F: 2,03-3,15; M: 1,66-2,32}.
(1252) F: Pr/Ur = 3,4-3,9.
Rem.: Mesopelagic.
Sampling depth (Antarct): 1200 m. 2000-3000 m (in Bode & al., 2017 at 25°S)
Typical bipolar species, but taken in the north Arabian Sea in the upwelling from the depth water current originates from Antarctic.
For Vervoort (1957, p.42) the male specimen attibued by Wolfenden (1906, p.43, Pl.14, figs. 6, 7; 1911, p.218) to S. antarcticus, certainly does not represent a male of the genus Spinocalanus (probably it belongs to the genus Xanthocalanus).
According to Wishner & al. (2008, p.163) this copepod, common in the lower oxycline, fed primarily on compenents of the vertical particulate flux and suspended material.
For Bode & al. (2017, p.610), S. antarcticus and S. magnus could only be separated based on their body shape [Criterion debatable. CR.]
Last update : 26/11/2020
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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 May 25, 2024]

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