Species Card of Copepod
Calanoida ( Order )
    Metridinidae ( Family )
        Metridia ( Genus )
Metridia macrura  Sars, 1905   (F,M)
Ref.:
Sars, 1905 c (p.7, Rem.F); Wolfenden, 1908 (p.16: Rem.); A. Scott, 1909 (p.121, figs.F); Sars, 1925 (p.197, figs.F,M); Sewell, 1932 (p.249, Rem.F,M, juv.); Rose, 1933 a (p.177, figs.F,M); Jespersen, 1934 (p.93); Lysholm & al., 1945 (p.32); Farran, 1948 c (n°14, p.3, figs.F); Tanaka & Omori, 1967 (p.251); Vaupel-Klein, 1970 (p.36, 43: Tabl.III); Séret, 1979 (p.136, figs.F,M); Baessa de Aguiar, 1987 (p.43, fig.M, Rem.F,M); Vives & Shmeleva, 2007 (p.365, figs.F,M, Rem.)
Species Metridia macrura - Plate 1 of morphological figuresIssued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.LIV, figs.1-7].
Female: 1, habitus (dorsal); 2, endopodal segments of P2; 3, P3; 4, P5; 5, anal segment and caudal rami (dorsal).

Male: 6, left A1; 7, P5.


Species Metridia macrura - Plate 2 of morphological figuresissued from : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate XXXVIII, Figs.8-11].
Female (from Banda Sea): 8, habitus (dorsal); 9, A1; 10, P2 (hooks on basal segment of endopodite); 11, P5.


Species Metridia macrura - Plate 3 of morphological figuresIssued from : C. Séret in Thesis 3ème Cycle UPMC, Paris 6. 1979. [Pl. XXXV, Figs.224-230].
Female (from off Kerguelen Is.): 224, habitus (dorsal); 225, head (dorsal); 226, last thoracic segment and urosome (lateral); 227, anal segment and caudal rami; 228, A1 (dorsal view); 229, proximal segments of A1; 230, P5.


Species Metridia macrura - Plate 4 of morphological figuresIssued from : C. Séret in Thesis 3ème Cycle UPMC, Paris 6. 1979. [Pl. XXXVI, Figs.231-233].
Male (from off Kerguelen Is.): 231, habitus (dorsal); 232, left P5; 233, right P5.

Compl. Ref.:
Sewell, 1948 (p.503, 521, 546); C.B. Wilson, 1950 (p.265); Grice & Hulsemann, 1965 (p.224); 1967 (p.17); 1968 (tab.2); Séguin, 1968 (p.488); Deevey & Brooks, 1977 (p.256, tab.2, Station "S"); Kovalev & Shmeleva, 1982 (p.84); Wiebe & al., 1988 (tab.7); Lozano Soldevilla & al., 1988 (p.59); Baessa De Aguiar, 1991 (1993) (p.106); Shih & Young, 1995 (p.70); Razouls & al., 2000 (p.343, Appendix); Markhaseva, 2001 (p.49, figs.F); Gaard & al., 2008 (p.59, Table 1, N Mid-Atlantic Ridge); El Arraj & al., 2017 (p.272, table 2, spatial distribution);
NZ: 12

Distribution map of Metridia macrura by geographical zones
Species Metridia macrura - Distribution map 4Issued from : C. Séret in Thesis 3ème Cycle, UPMC, Paris 6. 1979, Annexe. [p.22].
Geographical occurrences of Calanus simillimus in the Indian Ocean and Antarctic zone. [after publications from: Brady, 1883, 1918; Thompson, 1900; Wolfenden, 1908, 1911; With , 1915; Rosendorn, 1917; Farran, 1929; Sewell, 1929, 1947; Brady & Gunther, 1935; Steuer, 1929, 1392, 1933; Ommaney, 1936; Vervoort, 1957; Tanaka, 1960; Brodsky, 1964; Seno, 1966; Andrews, 1966; Grice & Hulsemann, 1967; Seno, 1966; Frost & Fleminger, 1968; Voronina, 1970; Zverva, 1972].

Nota: C. Séret notes this species at station 56°S, 70°E, farther on the tropical disitribution.
Loc:
sub-Antarct. (off S Kerguelen Is.), Gabon, G. of Guinea, Moroccan coast, Canary Is., Bay of Biscay, Azores, off Bermuda : Station ‘’ S’’ (32°10’N, 64°30’W), Sargasso Sea, S Strait of Davis, W Medit. (NW Basin, NW Tunisia), Indian, Indonesia-Malaysia, China Seas (South China Sea), Japan, Guaymas Basin, off W Juan Fernandez Is.
N: 22
Lg.:
(1) F: 10,5; (5) F: 10,5; (44) F: 9,11-7,78; M: 8,9; (70) F:10,4-8,6; M: 9,6-7,2; (246) F: 10,41; 9,27; 7,22; M: 7,03; (249) F: 7,68-7,38; M: 7,75-7,63; {F: 7,22-10,50; M: 7,03-9,60}

The mean female size is 8.986 mm (n = 11; SD = 1.331), and the mean male size is 8.018 mm (n = 6; SD = 1.0147). The size ratio (male : female) is 0.92 (n = 4; SD = 0.1491).
Rem.: bathy-abyssopelagic.
Sampling depth (sub-Antarct.): 0-100 m. Sargasso Sea: 1000-2000 m (Deevey & Brooks, 1977, Station "S");
Last update : 25/10/2022
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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 21, 2024]

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