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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Aetideidae ( Family ) |
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Gaetanus ( Genus ) |
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Gaetanus robustus Sars, 1905 (F,M) | |
| | | | | | | Syn.: | Gaidius validus Farran, 1908 b (p.32, figs. juv.F); Rose, 1933 a (p.96, figs.juv.F); Sewell, 1948 (p.499);
Gaidius maximus Wolfenden, 1906 (p.35, figs.F);
Mesogaidius maximus Wolfenden, 1911 (p.224, figs.F) ;
Pseudogaetanus robustus Brodsky, 1950 (1967) (p.169, figs.F,M); Tanaka & Omori, 1967 (p.244); Homma & Yamaguchi, 2010 (p.965, Table 2); Homma & al., 2011 (p.29, Table 2, 3, abundance, feeding pattern: suspension feeders);
no Gaidius robustus Vervoort, 1949 (p.12, figs.F); Grice & Hulsemann, 1967 (figs.60-64: M);
Gaidius robustus : Tanaka & Omori, 1970 (p.122, figs.F, Rem.); Grice & Hulsemann, 1967 (p.24: Rem.); Park, 1975 a (p.11); Hernandez-Trujillo, 1989 a (tab.1); Bradford & Jillett, 1980 (p.58); Ref. compl.: Grice & Hulsemann, 1968 (tab.2); Björnberg, 1973 (p.323, 386); Deevey & Brooks, 1977 (p.256, Table 2, station "S"); Ikeda & al., 2006 (p.204); Ikeda & al., 2006 (p.1791, Table 2) | | | | Ref.: | | | Sars, 1905 b (p.11, Rem.); 1925 (p.63, figs.F); 1925 (p.63, figs.F); Jespersen, 1934 (p.63, figs.F); Lysholm & al., 1945 (p.17); Sewell, 1948 (p.500); Park, 1975 a (p.13); Markhaseva & Razzhivin, 1993 (p.611); Markhaseva, 1996 (p.217, figs.F); Bradford-Grieve & al., 1999 (p.879, 922, figs.F,M) |  issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.218, Fig.173]. Female (from N Atlant.). Ce: forehead (lateral); P.md: mandibular palp; Gntb Md: ganathobase (partial). Nota: A1 reaching the end of caudal rami, or slightly shorter.
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 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.219, Fig.174]. Female. CP4: coxopod of P4 (partial). Male: fifth legs made by K.A. Brodsky after specimen from the Pacific Ocean.
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 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XIX, figs.1-2]. Female: 1, habitus (dorsal); 2, idem (lateral left side).
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 Issued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.170, Fig.86]. As Pseudogaetanus robustus. Female (from NW Pacif.): ADO, last thoracic segment and urosome (dorsal); ALa (idem (lateral right side); RDo, forehead (dorsal); RLa, idem (lateral); Mp2, Mxp; S1, P1; S2, P2. Male: S5, P5.
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 issued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.225, Fig.13]. As Mesogaidius maximus. Female (from off E Cape of Good Hope): a-b, habitus (dorsal and lateral, respectively).
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 issued from : G.P. Farran in Fish. Ire. Sci. Invest., 1906, II [1908]. [Pl. II, Figs.11-17]. As Gaidius validus. Female (from 55°1'N, 10°45'W): 11, 5th thoracic segment (lateral); 12, A2; 13, Mxp; 14, Mx1 (inner lobe omitted); 15, P1; 16, P2; 17, habitus (dorsal).
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 Gaetanus robustus female: 1 - Anterior part of cephalon without frontal spine. 2 - Posterior corners of last thoracic segment with long spines. 3 - Exopodal segment 1 of A2 with 1 seta; segment 2 with 3 setae. 2nd internal lobe of Mx1 with 5 setae. Exopod of P1 3-segmented with 3 external spines. 4 - Exopodal segment 2 of A2 with 3 setae. Lateral plate of Mxp protopodite well developed. 5 - Posterior corners of last thoracic segment with large spine each, spines slightly curved dorsally. Endopodal segment 1 of Md with 2 setae; segment 2 with 9 terminal and 2 posterior setae.
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 Gaetanus robustus male: 1 - Cephalon without frontal spine. 2 - Cephalon without crest in anterior part. 3 - Exopodal segment 3 of left P5 bilobated. Body size large (≥ 7 mm).
| | | | | Compl. Ref.: | | | Suarez-Morales & Gasca, 1998 a (p.108); Holmes, 2001 (p.49); Galbraith, 2009 (pers. comm.); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, comm. pers.) | | | | NZ: | 11 + 1 doubtful | | |
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Distribution map of Gaetanus robustus by geographical zones
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| | | | | | | Loc: | | | off Tristan da Cunha E, off W Canary Is., Azores, Sargasso Sea, Station "S" (32°10'N, 64°30'W), Davis Strait, off W Ireland, ? W Indian, Japan (Izu,) NE, Kuril-Kamchatka, Bering Sea, S Aleutian Basin, S Aleutian Is., Vancouver Is., W Baja California , S Pacif., off Juan Fernandez Is., Chile.
Type locality: N Atlantic (off Azores Islands) | | | | N: | 25 | | | | Lg.: | | | (1) F: 8; (10) F: 8-7,5; (22) F: 9-7,5; M: 7; (37) F: 9,2-7,5; M: 7; (70) F: 9,1-8,4; (113) F: 9,65-8,95; {F: 7,50-9,65; M: 7,00} | | | | Rem.: | meso-abyssopelagic. Sargasso Sea (Station "S"): 1500-2000 m.br>Grice & Hulsemann (1967, p.24) do not mention, sensu stricto , the identification of females, hence a doubt concerning the presence of this species in the Indian Ocean. | | | Last update : 05/01/2015 | |
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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 November 21, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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