Species Card of Copepod
Cyclopoida ( Order )
    Oithonidae ( Family )
        Dioithona ( Genus )
Dioithona minuta  (T. Scott, 1894)   (F,M)
Syn.: Oithona minuta T. Scott, 1894 b (p.90, figs.F,M); Thompson & Scott, 1903 (p.236, 255); A. Scott, 1909 (p.195); T. Scott, 1913 (p.569); Rosendorn, 1917 a (p.36, figs.F,M); Kiefer, 1929 g (p.10, Rem.F,M); Sewell, 1948 (p.420); Sazhina & Kovalev, 1971 (p.1100, fig.F); Björnberg, 1972 (p.87); Bradford-Grieve & al., 1999 (p.886, 966, figs.F);
Ref. compl.: Delalo, 1968 (p.138, Rem.: ?); Greze & al., 1968 (p.1066, annual variation); in Oceanology, 1968 p.839, P/B quotient); Kovalev & Shmeleva, 1982 (p.85); Musayeva, 1985 (tab.1); Greze & al., 1985 (p.8); Korshenko, 1985 (p.655); Selifonova, 2000 (p.68, tab.1); Kovalev, 2003 (p.47);
no O. minuta : Coker & Gonzalez, 1960 (p.18, 20);
Oithona (Dioithona) minuta : Shuvalov, 1976 (in Kos, 1976, Vol. II, figs.F, Rem.); Shuvalov, 1980 (p.169, figs.F)
Ref.:
Vives & Shmeleva, 2010 (p.45, figs.F, Rem.)
Species Dioithona minuta - Plate 1 of morphological figuresissued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. \"Valdiviella\", 1917, 23. [p.36, Fig.21]. As Oithona minuta.
Female: a, habitus (dorsal); b, forehead (lateral); c, A1; d, urosome; e, Md; f, Mx1; g, exopod of P2; h, exopod of P4.
Nota: Proportion of lengths (p.cent) Prosome : 62.5, Urosome : 37.5 . Relative lengths of urosomal segments and caudal rami: 5 : 13 : 7 : 7 : 6 : 6. Setal formula of the exopod swimming legs P1 to P4 (Se = outer setae), P1 : 1, 1, 3 Se ; P2 : 1, 1, 3 Se ; P3 : 1, 1, 1 Se ; ; P4 : 1, 1, 2 Se. P5 with 2 setae.


Species Dioithona minuta - Plate 2 of morphological figuresissued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. \"Valdiviella\", 1917, 23. [p.37, Fig.22]. As Oithona minuta.
Male: a, habitus (dorsal); b, P1; c, P2; d, P3; e, P4.
Nota: Proportion of lengths (p.cent) Prosome : 69.05, Urosome : 30.95 . Relative lengths of urosomal segments and caudal rami: 7 : 11 : 8 : 7 : 5.5 : 4 : 4. Setal formula of the exopod swimming legs P1 to P4 (Se = outer spines), P1 : 1, 1, 3 Se ; P2 : 1, 1, 3 Se; P3 : 1, 1, 3 Se ; P4 : 1, 1, 2 Se .


Species Dioithona minuta - Plate 3 of morphological figuresissued from : V.S. Shuvalov in Opred. Faune SSSR, Nauka, Leningrad, 1980, 125. [p.170, Fig.51]. As Oithona minuta.
Female: 1-2, habitus (dorsal), 3, same (lateral); 4-5 forehead (dorsal and lateral); 6, A2; 7, P1; 8, P2; 9, P4; 10, thoracic segment 5 and genital segment (lateral); 11, thoracic segments 4 and 5, genital segment (dorsal); 12, posterior part of urosome (dorsal).


Species Dioithona minuta - Plate 4 of morphological figuresissued from : F. Vives & A.A. Shmeleva in Fauna Iberica, 2010, 33. [p.46, Fig.9]. After T. Scott, 1894.
Female: A,-B, habitus (dorsal and lateral, respectively); C, A2; D, P1; E, P2; F, P4; G, 4th and 5th pedigerous somites and genital segment (dorsal); H, 1st urosomal segment and genital segment (lateral); I, anal somite and caudal rami.

Compl. Ref.:
Dussart, 1984 (p.25, 64: occurrence):
NZ: 8

Distribution map of Dioithona minuta by geographical zones
Loc:
Congo, G. of Guinea, Mouth of Amazon, Porto Rico, Ibero-moroccan Bay, Medit. (Alboran Sea, Black Sea), Red Sea, NW Indian, Sri Lanka, Indonesia-Malaysiea, W Pacif., ? Peru (in Dussart, 1984)
N: 15
Lg.:
(57) F: 0,64; M: 0,5; (649) F: 0,48; M: 0,42; (880) F: 0,48; {F: 0,48-0,64; M: 0,42-0,50}
Rem.: epipelagic-?; estuaries, inshore.

Greze & al. (1968), nearshore in the Black Sea, find a daily ratio P/B = .08 d-1 and an annual P/B yr-1 = 31.
Last update : 28/04/2020
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Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2021. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed September 28, 2021]

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