Cornucalanus robustus - Species Card - Marine Planktonic Copepods

Cornucalanus robustus Vervoort, 1957 (F,M)

Taxonomy

Order Calanoida

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Superfamily Clausocalanoidea

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Family Phaennidae

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Genus Cornucalanus

details list species for this Genus

Abbreviations or symbols

Synonymy

Cornucalanus chelifer : Wolfenden, 1911 (p.283, figs.F);
Cornucalanus antarcticus Brodsky & Zvereva, 1976 (p.185, figs.F)

References

List of the studied authors

Vervoort, 1957 (p.88, Descr.F, figs.F, Rem.); 1965 (p.33, Rem.); Park, 1983 a (p.358, figs.F,M, Rem.); Razouls, 1994 (p.100, figs.F,M); Bradford-Grieve & al., 1999 (p.880, 929, figs.F)

Figures

Plate 1 Female: 1, 2, habitus (dorsal, lateral); 3, Head (lateral); 4, Rostrum; 5, P5; 6, 7, Th5 and Urosome (dorsal, lateral); issued from : Park, 1983. 8, Urosome (ventral); issued from : Brodsky & Zvereva, 1976 (as Cornucalanus issued from : Parkantarcticus).

Species Cornucalanus robustus - Plate 2 of morphological figures

Plate 2 Male: 1, habitus (lateral); 2, 3, Head (dorsal, lateral); 4, Rostrum; 5, Th5 and Urosome (dorsal); 6, P5; issued from : Park in Antarct. Res. Ser; Washington, 1983, 39 (5): 317-368.

Species Cornucalanus robustus - Plate 3 of morphological figures

Plate 3 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.72]
Female (from 61°44'S, 77°59'E): a, habitus (lateral); b, Md (cutting edge); c, genital somite (ventral); d, rostrum (ventral view); e, forehead (lateral).

Plate 4 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.73]
Female: a-b, right A1; c, left Mxp; d, P5.

Species Cornucalanus robustus - Plate 5 of morphological figures

Plate 5 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.74]
Female: a-b, posterior part cephalothorax and urosome (lateral and dorsal, respectively); c, right Md (mandibular palp); d, habitus (dorsal).

Species Cornucalanus robustus - Plate 6 of morphological figures

Plate 6 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.s75, 76]
Female:
Fig.75: a, left Mx2; b, left A2; c, left Mx1.
Fig.76: a, right P1 (posterior); b-d, P2 to P4 (left legs, posterior).

Species Cornucalanus robustus - Plate 7 of morphological figures

Plate 7 Issued from : C. Razouls in Ann. Inst. océanogr., Paris, 1994, 70 (1). [p.100]. Caractéristiques morphologiques de Cornucalanus robustus femelle et mâle adultes.
Terminologie et abbréviations: voir à Calanus propinquus.

Complementary References

List of the studied authors

Björnberg, 1973 (p.331, 385); Hopkins, 1985 (p.197, Table 1, gut contents); Hopkins & Torres, 1988 (tab.1); Noda & al., 1998 (p.55, Table 3, occurrence); Voronina & Kolosova, 1999 (p.71); Razouls & al., 2000 (p.343, tab. 3, Appendix); Schnack-Schiel & al., 2008 (p.1045: Tab.2); Park & Ferrari, 2009 (p.143, Table 4, 7: common deep water species, Appendix 1, biogeography)

Distribution

NZ: 4

Distribution map of Cornucalanus robustus by geographical zones

Distribution map of Cornucalanus robustus for the Zone Antarctic and for the Zone Sub-Antarctic

Additional Maps & Charts

Species Cornucalanus robustus - Distribution map 3

Map 3 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Reports - Ser. B, Vol. III, 1957 [Fig.71].
Chart showing the geographical distribution (white triangle) in the seas surrounding the Antarctic continent.
Nota: In this chart the area frequented by whaling vessels has been hatched. The Antarctic circle (66°.5 S) has been drawn as a broken line. The numbers I to VI refer to the sectors into which the Antarctic seas are divided according to Mackintosh (1942) (after Vervoort, 1951).

Localisations

Geographical glossary

Antarct. (Croker Passage, Drake Passage, Weddell Sea, SW & SE Atlant., Indian, SW & SE Pacif.), sub-Antarct. (Indian, SW & SE Pacif.), G. of Guinea, Atlant. (equatorial), S Chile,

Quotations

N: 10

Dimensions (mm)

References of the authors concerning dimensions

(15) F: 7,66-6,75; M: 6,75-6,16; (16) F: 8,6-7,1; (25) F: 7,34-7,07; (444) F: 7,3-7,25; {F: 6,75-8,60; M: 6,16-6,75}

Remarks

bathypelagic.
Sampling depth (Antarct., sub-Antarct.) : 500-1000 m.
Concerning males see remarks to C. indicus from Tanaka & Omori (1992, p.260-261).
For Vervoort (1963 b, p.34), the occurence of this species in the Gulf of Guinea, is a surprise, but there is no doubt about their identity. it is thus necessary to revise previously expressed opinion that the species is a characteristic Antarctic deep water copepod; The species probably has a much wider distribution in deep water of the Atlantic Ocean, penetrating into the deeper waters of the Antarctic. In the Indian sector of the Antarctic, the species has also been recorded from north of the Antarctic convergence and in the extreme south of the Indian Ocean. Wolfenden (1911) mentions one tropical locality (0°46'N, 18°59'W which is in the vicinity of Atlantide Expedition (1°30'N, 10°10'W).

Last update : 28/01/2017

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