Drepanopus forcipatus - Fiche d'espèce - Copépodes planctoniques marins

Drepanopus forcipatus Giesbrecht, 1888 (F,M)

Taxonomy

Ordre Calanoida

détails

Superfamille Clausocalanoidea

détails

Famille Clausocalanidae

détails

Genre Drepanopus

détails liste des espèces pour ce genre

Abréviations ou symboles

Synonymie

Drepanopus pectinatus : Giesbrecht, 1892 (p.201, figs.F,M:); T. Scott, 1914 (p.8, figs.F,M); Hardy & Gunther, 1935 (p.156, Rem., distribution charts); Ramirez, 1966 (p.11, figs.F); Pallares, 1968 b (p.27, figs.F,M); Arcos, 1975 (Pl.3, figs.F,M)

Références

Liste des auteurs étudiés

Sewell, 1948 (p.402, 450, 573); Vervoort, 1957 (p.40); Fagetti, 1962 (p.16); Ramirez, 1969 (p.55, figs.M, Rem.); Arcos, 1975 (p.13, figs.F,M. Indicated by error as D. pectinatus ); Björnberg & al., 1981 (p.628, figs.F, M); Bayly, 1982 (p.165, Rem.); Hulsemann, 1985 a ( Rev., p.909, figs.F,M, Rem.); 1991 a (p.107, figs. Juv.,M); 1991 b (p.199, figs. juv.:1-5, F,M); Razouls, 1994 (p.56, figs.F,M); Mazzocchi & al., 1995 (p.166, figs.F,M, Rem.); Bradford-Grieve & al., 1999 (p.878, 915, figs.F,M); Bucklin & al., 2003 (p.335, tab.2, figs.1, 4, Biomol); Park & Ferrari, 2009 (p.143, Table 1, Appendix 1, biogeography from Southern Ocean); Xavier & al., 2020 (p.21, fig., Rem.).

Figures

Planche 1 Issued from: M.G. Mazzocchi, G. Zagami, A. Ianora, L. Guglielmo & J. Hure in Atlas of Marine Zooplankton Straits of Magellan. Copepods. L. Guglielmo & A. Ianora (Eds.), 1995. [p.167, Fig.3.29.1].
Female: A, habitus (dorsal); B, urosome (lateral right side).
Nota: Proportional lengths of urosomites and furca 41:19:13:11:16 = 100. P5 with bulbous base, terminal spine bent distally and ornated with 30 or more small teeth.

Male: C, habitus (dorsal); D, P5.
Nota: Proportional lengths of urosomites and furca 9:37:18:14:10:12 = 100. A1 with 3 conspicuous patches of long spinules at base. A2 with a row of curved spines at the base of its inner side. Left P5 bears 2 distinct patches of spines on the inner margin of the exopod 1.

Species Drepanopus forcipatus - Planche 2 of morphological figures

Planche 2 Issued from: M.G. Mazzocchi, G. Zagami, A. Ianora, L. Guglielmo & J. Hure in Atlas of Marine Zooplankton Straits of Magellan. Copepods. L. Guglielmo & A. Ianora (Eds.), 1995. [p.168, Fig.3.29.2].
Female (SEM preparation): A, habitus (lateral left side); B, idem (dorsal); C, urosome (dorsal); D, eggs being spawned from the genital aperture; E, P5.
Bars: A, B, C 0.100 mm; D 0.050 mm; E 0.010 mm.

Species Drepanopus forcipatus - Planche 3 of morphological figures

Planche 3 issued from : F.C. Ramirez in Contr. Inst. Biol. mar., Buenos Aires, 1969, 98. [p.56, Lam. IX, fig.63 ].
Male (from off Mar del Plata): 63, P5.
Scale bar in mm: 0.05.

Species Drepanopus forcipatus - Planche 4 of morphological figures

Planche 4 issued from : F.C. Ramirez in Contr. Inst. Biol. mar., Buenos Aires, 1969, 98. [p.50, Lam. VIII, fig.56 ].
Male (from off Mar del Plata): 56, habitus (dorsal).
Scale bar in mm: 0.1.

Species Drepanopus forcipatus - Planche 5 of morphological figures

Planche 5 issued from : F.C. Ramirez in Bol. Inst. Biol. Mar., Mar del Plata, 1966, 11. [Lam.II, Figs.9-16]
As Drepanopus pectinatus. Female (from off Mar del Plata): 9, habitus (dorsal); 10, posterior part cephalothorax with P5 and urosome (lateral left side); 11, A1; 12, P1; 13, P2; 14, exopod of P3; 15, P5; 16, P5 (side-face).

Species Drepanopus forcipatus - Planche 6 of morphological figures

Planche 6 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.915, Figs.14, 16-19].
Female: 14, 16, habitus (dorsal and lateral, respectively); 17, right A2; 18, right Md (mandible blade); 19, md (bitting edge, enlarged).
Scale bars: 0.5 mm (Figs. 14, 16); 0.2 mm (Figs.17, 18); 0.1 mm (Fig.19).

Species Drepanopus forcipatus - Planche 7 of morphological figures

Planche 7 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.918, Figs.23, 24, 27-29].
Female: 23, P5 (ventral view); 24, right P5 (lateral view); 27, terminal spine of left P2; 28, genital segment with spermatophore (lateral); 29, idem (ventral).
Scale bars: 0.2 mm (Figs.23, 24, 28, 29); 0.1 mm (Fig.27).

Species Drepanopus forcipatus - Planche 8 of morphological figures

Planche 8 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.912, Figs.2-4, 6].
Male: 2, habitus (lateral); 3, right A2; 4, right A2 (enlarggement of basis); 6, P5 (anterior view).
Scale bars: 0.5 mm (Fig.2); 0.2 mm (Figs.3, 6).

Species Drepanopus forcipatus - Planche 9 of morphological figures

Planche 9 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.914, Figs.7, 8, 10, 12].
Male: 7, right A1; 8, left A1 (segments 18-22); 10, habitus (dorsal); 12, right Md (mandible blade).
Scale bars: 0.5 mm (Fig10); 0.2 mm (Figs.7, 8); 0.1 mm (Fig.12).

Planche 10 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.916, Table III].
Total length and prosome:urosome length ratio in adult females. n = 30 individuals.
sta. WS 42: 54°42'S, 36°47'W; sta. WH 301: 54°48'S, 35°37'W.

Planche 11 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.917, Table V].
Various ratios between selected dimensions in genital segment of adult females. n = 30 individuals.

Planche 12 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.913, Table I].
Total length and prosome:urosome length ratio in adult males. n = 30 individuals.

Species Drepanopus forcipatus - Planche 13 of morphological figures

Planche 13 issued from : D.F.R. Arcos in Gayana, Zool., 1975, 32. [Lam.III, Figs.22-27]. As Drepanopus pectinatus.
Female (from Bahia de Concepcion, Chile): 22, P5; 23, P4; 24, P3; 25, P2.

Male: 26, forehead (dorsal); 27, P5.

Species Drepanopus forcipatus - Planche 14 of morphological figures

Planche 14 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 36, Figs.37, 38]. As Drepanopus pectinatus.
Female: 37, habitus (lateral); 38, urosome (ventral).

Species Drepanopus forcipatus - Planche 15 of morphological figures

Planche 15 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 10, Fig.27]. As Drepanopus pectinatus.
Female: 27, P1 (anterior surface).

Planche 16 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 10, Fig.28]. As Drepanopus pectinatus
Female: 23, A2 (anterior view); 24, Md; 25, Mx1 (posterior view)

Species Drepanopus forcipatus - Planche 17 of morphological figures

Planche 17 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 10, Fig.30]. As Drepanopus pectinatus.
Female: 30, P5 (posterior surface).

Species Drepanopus forcipatus - Planche 18 of morphological figures

Planche 18 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 36, Fig.36]. As Drepanopus pectinatus.
Male:

Species Drepanopus forcipatus - Planche 19 of morphological figures

Planche 19 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf. 10, Fig.29]. As Drepanopus pectinatus.
Male: 29, P5 (posterior view).

Species Drepanopus forcipatus - Planche 20 of morphological figures

Planche 20 issued from : C. Razouls in Ann. Inst. Océanogr., 1994, NS. 70 (1). [p.57, Pl. 20].
P5 female comparison between D. pectinatus (3), and D. forcipatus (6).

Références complémentaires

Liste des auteurs étudiés

C.B. Wilson, 1950 (p.200); Björnberg, 1973 (p.317, 385, carte); Arcos, 1976 (p.85, Rem.: p.91, Table II); Schnack & al., 1985 (p.256, fig.4); Dearborn & al., 1986 (p.1, predation by benthic star); Ferrari & Dearborn, 1989 (p.1315, predator); Ward, 1989 (p.141, distribution, tab.2); North & Ward, 1990 (p.299, predation by larval fish); Atkinson & al., 1990 (tab.1); Santos & Ramirez, 1991 (p.79, 80, 82, 83); Øresland & Ward, 1993 (p.73, Rem.: p.77, predation by Euchaeta); Atkinson, 1994 (p.551, feeding selectivity); Fernandez Araoz, 1991 (p.575); Santos & Ramirez, 1995 (p.133, Tabl. I, fig.2, 3); Ward & al., 1995 (p.195, abundance, biomass, vertical distribution); Razouls & al., 2000 (p.343, tab. 3, Appendix); Cripps & Atkinson, 2000 (p.31, Rem: Fatty acid); Sabatini & al., 2001 (p.245, figs.6, 7, 8); Ward & al., 2002 (p.2183, tab.2); Marrari & al., 2004 (p.667, tab.1); Berasategui & al., 2005 (p.485, tab.1); Berasategui & al., 2006 (p.485: fig.2); Ward & al., 2006 (p.83: tab.4); Biancalana & al., 2007 (p.83, Tab.2, 3); Ward & al., 2007 (p.1871, Table 2, fig.6, abundance); Ward & al., 2008 (p.241, Tabls, Appendix II ); Sabatini, 2008 (p.981, life history); Muelbert & al., 2008 (p.1662, Table 1); C.E. Morales & al., 2010 (p.158, Table 1); Hidalgo & al., 2010 (p.2089, fig.2, 4, Table 2, cluster analysis); Antacli & al., 2010 (p.71, Table 1, 2, Figs.3, 6); Guglielmo & al., 2012 (p.1301, Table 3); Ward & al., 2012 (p.78, Table B1, abundance); Sabatini & al., 2012 (p. 33, Table 3, abundance vs stations transect); Spinelli & al., 2012 (p.39, potential prey for fish); Aguirre & al., 2012 (p.341, Table I: abundance vs season, figs.4, 7); Hidalgo & al., 2012 (p.134, Table 2, 3, figs.6, 8, occurrence vs hydrology); Pino-Pinuer & al., 2014 (p.83, Table 1, fig.3, 4, abundance variation vs time); Fierro Gonzalvez, 2014 (p.1, Tab. 3, 4, 5, occurrence, abundance); Antacli & al., 2014 (p.17, occurrence vs community structure); Antacli & al., 2018 (p.295, feeding, reproduction); Acha & al., 2020 (p.1, Table 3: occurrence % vs ecoregions, Table 5: indicator ecoregions).

Distribution

NZ: 4

Carte de distribution de Drepanopus forcipatus par zones géographiques

Distribution map of Drepanopus forcipatus for the Zone Antarctic and for the Zone Sub-Antarctic

Cartes et graphiques additionels

Espèce Drepanopus forcipatus - Carte de distribution 3

Carte 3 Chart of 1996

Espèce Drepanopus forcipatus - Carte de distribution 4

Carte 4 issued from : K. Hulsemann in J. Plankton Res., 1985, 7 (6). [p.921, table VII].
Distributional records of D. forcipatus (1985).

Espèce Drepanopus forcipatus - Carte de distribution 5

Carte 5 Issued from : P. Ward, A. Atkinson, A.W.A. Murray, A.G. Wood, R. Williams & S. Poulet in Polar Biol., 1995, 15. [p.200, Fig.3].
Abundance and biomass (g dry mass/m3) profiles for the shelf station (54°48'S, 38°15'W) in January 1990.
Values on the horizontal axes at the base represent abundance and the one above biomass. Solid line = midday haul; hatched line = midnight haul.

Espèce Drepanopus forcipatus - Carte de distribution 6

Carte 6 Issued from : P. Ward, A. Atkinson, A.W.A. Murray, A.G. Wood, R. Williams & S. Poulet in Polar Biol., 1995, 15. [p.198, Fig.1, A (modified C.R.)].
Temperature profile for the shelf station at Bird Island, South Georgia (54°48'S, 38°15'W) in January 1990.

Espèce Drepanopus forcipatus - Carte de distribution 7

Carte 7 Issued from : P. Ward, A. Atkinson, A.W.A. Murray, A.G. Wood, R. Williams & S. Poulet in Polar Biol., 1995, 15. [p.202, Fig.4, A].
Abundance (10/m3) and biomass (g dry mass/m3) profiles at the oceanic station from the shelf break in water 4000 m deep off Bird Island, South Georgia (53°04'S, 39°51'W) in January 1990.
Values on the horizontal axes at the base of each profile represent abundance and the one above biomass. Solid line = midday haul; hatched line = midnight haul.

Espèce Drepanopus forcipatus - Carte de distribution 8

Carte 8 Issued from : P. Ward, A. Atkinson, A.W.A. Murray, A.G. Wood, R. Williams & S. Poulet in Polar Biol., 1995, 15. [p.198, Fig.1, B (modified C.R.)].
Profile temperature-depth at the oceanic stations from the shelf break in water 4000 m deep off Bird Island, South Georgia, in January 1990.

Carte 9 Issued from : G.A. Aguirre, F.L. Capitanio, G.A. Lovrich & G.B. Esnal in Mar. Biol. Res., 2012, 8. [p.349, Fig. 7 E, F].
Abundance (ind/m3) distribution of Drepanopus forcipatus during March 2006 and June 2006 in the Beagle Channel.
In this area the surface water temperature ranges from 4.2-4.3°C in August to 8.9-9.8°C in Juanary, while the salinity ranges from 26.7 psu in November-December to 31.3 psu during July.
According to Klöser (1996) the Channel between the Isla Navarino and the Isla Grande de Tierra del Fuego has the character of a semi- enclosed water body.

Localisations

Glossaire géographique

Antarct. (N Peninsula, Scotia Sea, South Georgia), Beagle Channel, Magallones region, sub-Antarct. (S South America, Falklands, N South Georgia, Chile (S, Concepcion off Santiago), Ushuaia, Magellan Strait ), Patagonian Shelf, Peninsula Valdés, off Mar del Plata, off Cape San Antonio, Uruguay (continental shelf)

Citations

N: 53

Dimensions (mm)

Références de auteurs concernant les dimensions

(36) F: 1,78-1,39; M: 1,35-1,12; (47) F: 1,9-1,5; M: 1,48-1,22; (115) F: 2,74-1,84; M: 1,94-1,66; (202) F: 1,5-1,9; M: 1,22-1,49; (861) F: 1,79-1,84; M: 1,46-1,48; {F: 1,39-2,74; M: 1,12-1,94}

Remarques

Néritique, littorale.
Sampling depth (Antarct., sub-Antarct.) : 0-250 m.
La courbure de la P5 permet de distinguer aisément cette espèce de D. pectinatus.

Voir aussi les remarques en anglais

Dernière mise à jour : 14/06/2022

Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2026. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed October 08, 2026]

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