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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Clausocalanidae ( Family ) |
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Clausocalanus ( Genus ) |
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Clausocalanus ingens Frost & Fleminger, 1968 (F,M) | |
| | | | | | | Syn.: | Clausocalanus arcuicornis : De Decker, 1964 (part., p.15, 20, 30);
C. laticeps : Tanaka, 1960 (p.32, figs.F,M) data from Frost & Fleminger;
C. arcuicornis major Unterüberbacher, 1964 (part., p.19, Pl.27) | | | | Ref.: | | | Frost & Fleminger, 1968 (p.39, figs.F,M, Rem.); Ramirez, 1969 (p.53, figs.F, Rem.); Björnberg & al., 1981 (p.628, figs.F,M); Bradford-Grieve, 1994 (p.114, figs.F,M, fig.101); Mazzocchi & al., 1995 (p.153, figs.F, Rem.); Bradford-Grieve & al., 1999 (p.878, 916, figs.F,M); Bucklin & al., 2003 (p.335, tab.2, figs.1, 4, Biomol) |  issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1968, 12. [Pl.19, p.138-139; Pl.20, p.140-141; Pl.21, p.142-143]. Female: 1 a, habitus (right lateral view); 1 b, idem (dorsal view); 2 a, frontal region (right lateral); 2 b, rostrum ( (right lateral); 2 c, rostrum (anteroventral); 2 d, Th.4-5 (posterior part) and genital segment (right lateral); 2 z, genital segment (ventral view); 2 a-b taken from one specimen; 2 c-e from different specimens; 3 a, Th.4-5 (posterior part) and urosome with spermatophore attached (right lateral); 3 b, B2 of P2; 3 c, B2 of P3; 3 d-e, P5; 3 a taken from one specimen; 3 b-c from another specimen; 3 d-e from third and fourth specimens, respectively.
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1968, 12. [Pl.22, p.144-145; Pl.23, p.146-147]. Male: 1 a, habitus (right lateral view); 1 b, idem (dorsal view); 1 c, frontal region (right lateral); 1 d, urosome (dorsal view); 1 e, urosome 4 (posterior part), urosome 5 and caudal rami (dorsal view); 1 a-b taken from one specimen; 1 c-e taken from different specimens; 2 a, Th.4-5 (posterior part) and urosome (left lateral view); 2 b, B2 of P2; 2 c, B2 of P3; 2 d, P5 (posterior); 2 e, P5 (left anterolateral); 2 a taken from one specimen; 2 b-c from another ; 2 d and e from third and fourth specimens, respectively. Nota: 2nd segment of P5 less than 4.4 times as long as wide.
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 issued from : J.M. Bradford-Grieve in The Marine Fauna of New Zealand: Pelagic Calanoid Copepoda. National Institute of Water and Atmospheric Research (NIWA). New Zealand Oceanographic Institute Memoir, 102, 1994. [p.114, Fig.64]. Female: A, habitus (lateral left side); B, genital somite (lateral left side); C, rostrum (anterodorsal) view); D, basipod 2 of P3; E, P5. Male: F, habitus (lateral left side); G, left caudal ramus (dorsal); H, basipod 2 of P3; I, P5.
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 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.154, Fig.3.26.1]. Female: A, habitus (dorsal); B, urosome (dorsal); C, habitus (lateral left side); D, urosome (lateral left side). Nota: Proportional lengths of urosomites and furca 36:20:17:12:15 = 100. A1 almost reaching end of cephalothorax.
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 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.155, Fig.3.26.2]. Female (SEM preparation): B, urosome (dorsal); C, idem (ventral); D, P5. Bars: B, C 0.100 mm; D 0.010 mm.
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 issued from : F.C. Ramirez in Contr. Inst. Biol. mar., Buenos Aires, 1969, 98. [p.56, Lam. IX, fig.62]. Female (from off Mar del Plata): 62, P5 Scale bar in mm: 0.02.
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 issued from : F.C. Ramirez in Contr. Inst. Biol. mar., Buenos Aires, 1969, 98. [p.50, Lam. VIII, figs.49-51]. Female (from off Mar del Plata): 49-51, basipodal segment 2 of P2-P4, respectively. Scale bar in mm: 0.05.
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.30, Table 2a]. Clausocalanus ingens Females: Measurements and ratios *.
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.31, Table 2b]. Clausocalanus ingens males: Measurements and ratios *. r = sample range; m = sample mean; n = number of specimens measured; s = sample standard deviation.
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.26, Fig.9]. Ratio of length-to-width of 2nd segment of P5 male (ordinate plotted against length of 2nd segment of left P5 (abscissa) for Clausocalanus ingens.
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.143, Pl.21, b, c, d-e]. Female: b, basipodite 2 of P2; c, basipodite 2 of P3; d-e, P5 (from different specimens).
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.47, Pl.23, a, d, e]. Male: a, posterior part of last thoracic segment and urosome (left lateral); d, P5 (posterior); e, P5 (left anterolateral).
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 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, 1968, 12. [p.147, Pl.23, b, c]. Male: b, basipodite 2 of P2; c, basipodite 2 of P3.
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 Issued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [Pl. XI, 1-8]. As Clausocalanus laticeps. Female (from Sub-Antarctic): 1, forehead (dorsal); 2,
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 Issued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [p.32]. As Clausocalanus laticeps. Female: Proportional lengths of segments of A1.
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 ssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [Pl. XI, 9-12]. As Clausocalanus laticeps. Male (from Sub-Antarctic): 9, habitus (lateral); 10, P2; 11, distal segment of left P5; 12, right P5.
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 Issued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [p.33]. As Clausocalanus laticeps. Male: Proportional lengths of segments of A1.
| | | | | Compl. Ref.: | | | Björnberg, 1973 (p.311, 385); Nyan Taw & Ritz, 1979 (p.196); De Decker, 1984 (p.315, 343: carte); Razouls & al., 2000 (p.343, tab. 3, Appendix); Ward & al., 2003 (p.121, tab.4); Lo & al., 2004 (p.89, tab.1); Schnack-Schiel & al., 2010 (p.2064, Table 2: E Atlantic subtropical, Fig.4, 6, 7, Tabe 4); Hidalgo & al., 2012 (p.134, Table 2); Zakaria & al., 2016 (p.1, Table 1, Rem.) | | | | NZ: | 9 | | |
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Distribution map of Clausocalanus ingens by geographical zones
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| | | | | | | | | | | | | | |  issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1968, 12. [p.40, Chart 3, a].
Occurrence of C. ingens in samples examined; closed circles represent samples examined; open circles represent samples in which adults were found; bars through open circles represent samples from which specimens were removed for measurements. |
 issued from : B. Frost & A. Fleminger in Bull. Scripps Inst. Oceanogr. Univ. California, San Diego, 1968, 12. [p.41, Chart 3, b].
Occurrence of C. ingens in samples examined; closed circles represent samples examined; open circles represent samples in which adults were found; bars through open circles represent samples from which specimens were removed for measurements. |
| | | | Loc: | | | sub-Antarct. (N South Georgia, SW & SE Pacif., Straits of Magellan (Central part and Pacific area), S Pacif., S Australia, Tasmania , New Zealand (N, SE North Island), China Seas (East China Sea), Taiwan (N: Mienhua Canyon), Chile, off Santiago, S Indian, South Africa (E & W), SW Atlant., S Brazil , E Medit. (W Egyptian coast in Zakaria & al., 2016 (Table 1) | | | | N: | 16 | | | | Lg.: | | | (30) F: 1,9-1,44; M: 1,08-0,99; (36) F: 1,84;1,67; (66) F: 1,62; M: 1,07; {F: 1,44-1,90; M: 0,99-1,08}
The mean female size is 1.694 mm (n = 5; SD = 0.1832) and the mean male size is 1.047 (n = 3; SD = 0.0493). The size ratio (male : female) is 0.64. | | | | Rem.: | epipelagic.
Sampling depth (sub-Antarct.) : 0-500 m.
For Frost & Fleminger (1968, p.41) C. ingens female is distinguished from laticeps by the length-width ratio of the caudal ramus and the form and spacing of basipodite 2 spiniform processes 2 and 3 of P3. C. ingens male differs from laticeps in the Prosome/Urosomal segment 2 length ratio, the form of basipodite 2 spiniform processes of P3, and the length-width ratio of the caudal ramus. C. ingens was confused with laticeps by Tanaka (1960), and it is likely that the two species have been confused by others.
Lo & al. (2004) seem to indicate for the first time the presence of this species in the NW Pacific (north of Taiwan), and Zakaria & al. (2016) in the East Mediterranean Sea (Egyptian coast). | | | Last update : 18/08/2018 | |
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 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 April 19, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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