Fiche d'espèce de Copépode
Cyclopoida ( Ordre )
    Oithonidae ( Famille )
        Oithona ( Genre )
Oithona simplex  Farran, 1913   (F,M)
Ref.:
Farran, 1913 a (p.187, figs.F); Rosendorn, 1917 (p.303); 1917 a (p.44, Rem.F,M, figs.M); Früchtl, 1924 b (p.73, Rem.); Gurney, 1927 (p.160, Rem.); Kiefer, 1929 g (p.9, Rem.F,M); Sewell, 1948 (p.461); Lindberg, 1955 a (p.466: Rem.); Marques, 1957 (p.41); Tanaka, 1960 (p.64, figs.F,M); Grice, 1960 a (p.488, figs.12-18); Rem); Herbst, 1964 (p.157, Rem.); Gonzalez & Bowman, 1965 (p.274, figs.F, Rem.); Wellershaus, 1970 (p.477, 478); Björnberg, 1972 (p.83, figs., Rem.N); Kos, 1972 (Vol.I, figs. F, Rem.); Chen & al., 1974 (p.34, figs.F,M, p.74: Rem.); Nishida & al., 1977 (p.151, figs. F,M, Rem.); Shuvalov, 1980 (p.162, figs.F, Rem.M); Ferrari & Bowman, 1980 (p.19, figs.F,M, Rem.); Sazhina, 1985 (p.92, figs.N); Nishida, 1985 a (p.88, Redescr.F, figs.F, Rem.F,M, 2 forms, p.140); Nishida, 1986 (p.386); Valentin & al., 1987 (p.1202); Yoo & Lim, 1993 (p.91, 97, 100, Table 1); Gaughan & Potter, 1995 (p.121); Chihara & Murano, 1997 (p.939, Pl.197,201: F,M); Bradford-Grieve & al., 1999 (p.886, 967, figs.F); McKinnon, 2000 (p.108, Rem.); Conway & al., 2003 (p.205, figs.F,M, Rem.); Vives & Shmeleva, 2010 (p.78, figs.F,M, Rem.); Cornils & Heckmann, 2015 (p.243, Fig.2, molecular biology).
Espèce Oithona simplex - Planche 1 de figures morphologiquesissued from : F.D. Ferrari & T.E. Bowman in Smiths. Contr. Zool., 1980, 312. [p.20, Fig.12].
Female (from Caribbean area): a, Habitus (lateral right side); b, urosome (lateralright side); c, P4.Br>Nota: Prosome /Urosome = 1.6. Endopodal segments 2 and 3 of P4 with internal setae without curvature of flange. Knob near genital opening with small, thin spine medially, a smaller spine ventrally, and a tiny spine dorsally.

Male: d, posterior part of cephalosome with \"pore signature\".
Nota: Prosome/Urosome = 1.5. Cephalosome similar to female, without flap.


Espèce Oithona simplex - Planche 2 de figures morphologiquesissued from : F.D. Ferrari & T.E. Bowman in Smiths. Contr. Zool., 1980, 312. [p.24, Fig.15 g-h].
Male (SEM): g, \"pore signature\" (right side, X1800); h, single pore.
Nota: Individual pores without well-developed ridges; integument slightly thickened anteriorly and posteriorly.


Espèce Oithona simplex - Planche 3 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.92, Fig.52]. As Oithona simplex typical form.
Female: a, habitus (dorsal); b, forehead (lateral); c, thoracic segment 5 and genital segment (dorsal); d, P6; e, thoracic segment 5 and genital segment (lateral right side); f, A1; g, Md (mandibular palp); h, Md (biting edge); i, Mx1.
Nota: Proportional lengths of urosome segments and caudal ramus 12:36:16:16:8:11.


Espèce Oithona simplex - Planche 4 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.93, Fig.53]. As Oithona simplex typical form.
Female: a, A2; b, Mxp; c, Mx2; d, anal segment and caudal rami (dorsal); e, P1; f, P2; g, P3; h, P4.

Nota after Vives & Shmeleva (2010, p.79): Setal formula on outer margin (in first) and inner margin (in second) of exopod segments (from proximal to distal) of P1 to P4:
P1: 1, 1, 3; 1, 1, 4.
P2: 1, 1, 3; 1, 1, 5
P3: 1, 1, 3; 1, 1, 5.
P4: 1, 1, 3; 1, 1, 5.


Espèce Oithona simplex - Planche 5 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.94, Fig.54]. As Oithona simplex typical form.
Male: a, habitus (dorsal); b, thoracic segment 5 and genital segment (ventral); c, idem (lateral left side); d, last urosomal segments and caudal rami (dorsal); e, A2; f, Md; g, Mx1; h, Mx2; i, Mxp.


Espèce Oithona simplex - Planche 6 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.95, Fig.55]. As Oithona simplex typical form.
Male: a, forehead; b, A1; c, P1; d, P2; e, P4.


Espèce Oithona simplex - Planche 7 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.97, Fig.56]. As Oithona simplex long form.
Female: a, habitus (dorsal); b, forehead); c, anal segment and caudal rami (dorsal); d, idem (ventral); e, A2; f, Md (mandibular palp); g, Md (biting edge); h, Mx1.
Nota: Proportional lengths of urosome segments and caudal ramus 11:33:15:16:11:13.


Espèce Oithona simplex - Planche 8 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.98, Fig.57]. As Oithona simplex long form.
Female: a, A1; b, Mx2; c, Mxp; d, P1; e, P2; f, P3; g, P4.
Nota: Mxp as in typical form but endopodal segment with 1 more minute seta. 2


Espèce Oithona simplex - Planche 9 de figures morphologiquesIssued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.96, Table 4].
Structure of Md, Mx1 and P1 of female Oithona simplex reported by workers.
Ri = endopodite; Re = exopodite.


Espèce Oithona simplex - Planche 10 de figures morphologiquesissued from : Q.-c Chen & S.-z. Zhang & C.-s. Zhu in Studia Marina Sinica, 1974, 9. [Pl.3, Figs.4-9].
Female (from China Seas): 4, habitus (dorsal); 5, P1; 6, P2; 7, P3; 8, P4.

Male: 9, habitus (dorsal).


Espèce Oithona simplex - Planche 11 de figures morphologiquesissued from : G.P. Farran in Proc. zool. Soc. Lond., 1913. [Plate XXIX, Figs.10-14].
Female (from Christmas Island, Indian): 10, forehead (lateral); 11, habitus (dorsal); 12, urosome (dorsal); 13, P3; 14, P4.


Espèce Oithona simplex - Planche 12 de figures morphologiquesissued from : G.P. Farran in Proc. zool. Soc. Lond., 1913. [Plate XXX, Figs.1-2].
Female: 1, A1; 2, P1.


Espèce Oithona simplex - Planche 13 de figures morphologiquesissued from : G.D. Grice in Bull. mar. Sci. Gulf Caribb., 1960, 10 (4). [p.486, Figs.12-18].
Female (from NE Gulf of Mexico: off Alligator Harbor): 12, habitus (dorsal); 13, urosome (dorsal); 14, P1; 15, P2; 16, P3; 17, P4.
Nota: Rostrum absent. Exopod segments 1-3 of P4 with 1, 1, 3 spines, respectively.

Male: 18, habitus (dorsal).
Nota: Exopod segments 1-3 of P1 with 1, 1, 3 spines, respectively. Exopod segments 1-3 of P4 with 1, 1, 3 spines, respectively.

Remarks: The specimens of the Gulf of Mexico diverge slightly from those described by Farran (1913) in two respects. The 1st segment of the endopod of P1 has 1 seta and the 2nd segment of the exopod of P4 has 1 inner seta. These segments in Farran have 0 and 2 setae, respectively.. Rosendorn (1917) stated that the endopod of P1 consists of 3 segments and not 2 as shown by Farran. There is also some confusion regarding the number of setae on the 3rd endopodal segment of P4; Rosendorn apparently misinterpreted Farran's method of presenting the number and position of the setae on the various endopodal segments of the swimming legs.


Espèce Oithona simplex - Planche 14 de figures morphologiquesissued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. \"Valdiviella\", 1917, 23. [p.45, Fig.26].
Male: a, habitus (dorsal); b, urosome (dorsal); c, Md; d, Mx1; e, exopod of P1; f, exopod of P2.
Nota: Proportion of lengths (p.cent) Prosome : 62.16, Urosome : 37.84 . Relative lengths of urosomal segments and caudal rami: 6 : 9 : 5 : 5.5 : 5 : 2.5 : 4. 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, 3 Se ; P4 : 1, 1, 3 Se.

Female: Proportion of lengths (p.cent) Prosome : 65.85, Urosome : 34.15 . Relative lengths of urosomal segments and caudal rami: 6 : 20 : 9 : 10 : 4.5 : 9. 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, 3 Se; P4 : 1, 1, 3 Se.


Espèce Oithona simplex - Planche 15 de figures morphologiquesissued from : V.S. Shuvalov in Opred. Faune SSSR, Nauka, Leningrad, 1980, 125. [p.157, Fig.45].
Female: A-B, habitus (lateral and dorsal, respectively); C-D, cephalon (lateral and dorsal, respectively); E, urosome.


Espèce Oithona simplex - Planche 16 de figures morphologiquesissued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. \"Valdiviella\", 1917, 23. [p.192, Fig.64, 10-14].
Female: 10, forehead (lateral); 11, habitus (dorsal); 12, urosome (dorsal); 13, P3; 14, P4.


Espèce Oithona simplex - Planche 17 de figures morphologiquesIssued from : S. Nishida, O. Tanaka & M. Omori in Bull. Plankton Soc. Japan, 1977, 24 (2). [p.152, Fig.23, a-h].
female (off Sagami Bay) and adjacent waters: a, habitus (dorsal); b, forehead (lateral); c, Md; d, Mx1; e, P1; f, P2; g, P3; h, P4.

Nota: Formulae of exopod P1 to P4 (outer setae in first, inner setae in second). P1: 1,1,3; 1,1,4. P2: 1,1,3; 1,1,5. P3: 1,1,3; 1,1,5. P4: 1,1,3; 1,1,5;
Prosome length/urosome length = 1.82


Espèce Oithona simplex - Planche 18 de figures morphologiquesIssued from : S. Nishida, O. Tanaka & M. Omori in Bull. Plankton Soc. Japan, 1977, 24 (2). [p.152, Fig.23, i-n].
Male (off Sagami Suruga Bay): i, habitus (dorsal); j, forehead (lateral); k, P1; l, P2; m, P3; n, P4.

Nota: Prosome length/urosome length = 2.00.
P1-P4 armed as in female.


Espèce Oithona simplex - Planche 19 de figures morphologiquesIssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [Pl. XXVIII, 1-6].
Female (from South China Sea and Indian Ocean): 1, habitus (dorsal); 2, P1; 3, P2; 4, P3; 5, P4.
Nota: Prosome and urosome in the proportional lengths 65 to 35.
Rostrum absent.
Urosomal segments and caudal rami in the proportional lengths 12 : 35 : 15 : 15 : 8 = 100.
Caudal rami divergent, 2 times as long as broad.

Male: 6, habitus (dorsal).
Nota: Prosome and urosome in the proportional lengths 64 to 44.
Urosomal segments and caudal rami in proportional lengths 16 : 22 : 17 : 15 : 15 : 5 : 10 = 100.
The A1 has the knee-joint between the segments 11 and 12.


Espèce Oithona simplex - Planche 20 de figures morphologiquesIssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [p. 65].
Female: Proportional lengths of segments of A1.

Nota: A1 short, extends to the level of the posterior end of the 2nd thoracic segment.


Espèce Oithona simplex - Planche 21 de figures morphologiquesIssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [p. 65].
Female: Number of outer marginal spines and inner marginal setae of the exopodal segments of the swimming legs P1 to P4.


Espèce Oithona simplex - Planche 22 de figures morphologiquesIssued from : O. Tanaka in Spec. Publs. Seto mar. biol. Lab., 10, 1960 [p. 65].
Female: Number of the inner and outer marginal setae on the endopodal segments of the swimming legs P1 to P4.


Espèce Oithona simplex - Planche 23 de figures morphologiquesIssued from : K.-I. Yoo & D.-H. Lim in The Korean J. Syst. Zool., 1993, 9 (2) [p.97: key of female] in Korean Waters: Morphological characters of Oithona smplex female :
1 - Anterior part of prosome rounded in dorsal view.
2 - Rostrum blunt.
3 - P5 with 1 seta.
4 - Length of A1 less than 0.7 times of that of prosome.

Ref. compl.:
V.N. Greze, 1963 a (tabl.2); De Decker & Mombeck, 1964 (p.13); Shmeleva, 1964 a (p.1068); 1965 b (p.1350, lengths-volume -weight relation); Pavlova, 1966 (p.44); Delalo, 1968 (p.138, as simplix); Newbury & Bartholomew, 1976 (p.373, production); Ferrari, 1977 (p.410); Dessier, 1979 (p.134, 201, 207); Kovalev & Shmeleva, 1982 (p.85); Dussart, 1984 (p.25, 64: occurrence): Greze & al., 1985 (p.8); Nishida, 1985 (p.125); Turner, 1986 (p.289, fig. 7: pellet-content): Böttger-Schnack al., 1989 (p.1089); Othman & al., 1990 (p.561, 564, Table 1); Yoo, 1991 (tab.1); Dai & al., 1991 (tab.1); McKinnon, 1991 (p.471); Böttger-Schnack, 1992 (p.304); Lopes, 1994 (tab.1); Suarez Morales, 1994 b (tab.1); Gaughan & Potter, 1995 (tab.1); Shih & Young, 1995 (p.75); Gouda & Panigrahy, 1995 (p.206); Böttger-Schnack, 1995 (p.92); 1996 (p.1088); McKinnon & Ayukai, 1996 (p.595); Hopcroft & Roff, 1996 (p.789, diel egg production); Böttger-Schnack, 1997 (p.410); Noda & al., 1998 (p.55, Table 3, occurrence); Hure & Krsinic, 1998 (p.103); Hopcroft & al., 1998 (tab.2); Lopes & al., 1998 (p.195); Suarez-Morales & Gasca, 1998 a (p.112); Razouls & al., 2000 (p.343, Appendix); Ueda & al., 2000 (tab.1); Ueda, 2001 (p.96, occurrence); McKinnon & al., 2003 (p.105, tab.2, fig.11); Hsieh & al., 2004 (p.398, tab.1); Rezai & al., 2004 (p.486, tab.2, 3, abundance, Rem., p.495, tab.8); Lo & al., 2004 (p.468, tab.2); Zuo & al., 2006 (p.164: tab.1); Porri & al., (p.714); Selifonova & al., 2008 (p.305, Tabl. 2); Ohtsuka & al., 2008 (p.115, Table 4, 5, Rem.); Osaka and Kitakyushu Harbors); McKinnon & al., 2008 (p.843: Tab.1, p.846: Tab. II, fig.7); Miyashita & al., 2009 (p.815, Tabl. II); Fazeli & al., 2010 (p.153, Table 1); Hsiao S.H. & al., 2011 (p.475, Appendix I); Zhang G.-T. & Wong, 2011 (p.277, fig.6, 7, 8, abundance, indicator); Saitoh & al., 2011 (p.85, Table 4, 5); Beltrao & al., 2011 (p.47, Table 1, density vs. time); Selifonova, 2011 a (p.77, Table 1, alien species in Black Sea); Ali & al., 2011 (p.601, fig.11, abundance vs tidal); Chew & Chong, 2011 (p.127, fig.4, 5, Table 2, 3, abundance vs location); Uysal & Shmeleva, 2012 (p.909, Table I); Johan & al., 2012 (p.647, Table 1, 2, fig.2, salinity range); Miyashita & al., 2012 (p.1557, Table 2: occurrence); Johan & al., 2012 (2013) (p.1, Table 1); Zamora Terol, 2013 (p.174: Table 5); Zamora-Terol & Saiz, 2013 (p.376, Rem.: Table 3, egg production); Melo Jùnior & al., 2013 (p.363, Table 2, egg production); Jagadeesan & al., 2013 (p.27, Table 3, seasonal variation); Gubanova & al., 2013 (in press, p.4, Table 2); Jungbluth & Lenz, 2013 (p.630, Table I); Ohtsuka & Nishida, 2017 (p.565, Table 22.1);
NZ: 15

Carte de distribution de Oithona simplex par zones géographiques
Espèce Oithona simplex - Carte de distribution 4Issued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.140, Fig.91].
Indo-Pacific geographical distribution of Oithona simplex.
Dotted line: AC, Arctic Convergence; SC, Subtropical Convergence. Arrows indicate the stations where the typical short form occured
Espèce Oithona simplex - Carte de distribution 5issued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. "Valdiviella", 1917, 23. [Taf. I].
The genus Oithona: Distribution of species sampled during the Deutsche Tiefsee Expedition 1898-99.
The size of symbols indicates the relative quantitty of the species.
Espèce Oithona simplex - Carte de distribution 6issued from : A.A. Shmeleva in Bull. Inst. Oceanogr., Monaco, 1965, 65 (n°1351). [Table 6: 39]. Oithona simplex (from South Adriatic).
Dimensions, volume and Weight wet. Means for 50-60 specimens. Volume and weight calculated by geometrical method. Assumed that the specific gravity of the Copepod body is equal to 1, then the volume will correspond to the weight.
Espèce Oithona simplex - Carte de distribution 7Issued from : S. Zamora Terol in Tesis Doc. Univ. Politèc. Catalunya, 2013 [p.82-83, Table 3].
Comparison of egg production and clutch sizes among different species of Oithona from field and lab studies.

Also, see: Oithona attenuata, O. colcarva, O. davisae, O. nana, O. plumifera, O. setigera, O. similis, O. aruensis.
Loc:
sub-Antarct. (SE Atlant.), South Africa (E), Brazil (S, Guarau estuary, Paranagua estuary, Cabo Frio, mouth of Amazon), Congo, Caribbean, Yucatan (Chetumal Bay), Porto Rico, Jamaica, G. of Mexico, off W Mississipi River mouth, Florida, off Cape Finisterre, Medit. (Alboran Sea, NW Basin, Adriatic Sea, Ionian Sea, Aegean Sea, Lebanon Basin, W Black Sea), Suez Canal, Port Taufik, Red Sea, Gulf of Oman, Arabian Sea, Kuwait, Madagascar (Nosy Bé), Indian, E India (Rushikulya estuary, Gulf of Mannar), Christmas Is., Perai River estuary (Penang), Straits of Malacca, Sangga estuary, Indonesia-Malaysia, Sarawak: Bintulu coast, Is. Aru, China Seas (Yellow Sea, East China Sea, South China Sea),Hong Kong, Taiwan (E, W, Tapong Bay), Xiamen Harbour, Okinawa (kabira Bay, lagoons), S Korea (Cheju Is.), S Japan (Kuchinoerabu Is.), Japan (Kyushu: Shijiki Bay, Ariake Bay, Australia (Exmouth Gulf, Wilson Inlet, G. of Carpentaria, Great Barrier), New Caledonia, Samoa Is., Palau Is., Pacif. (tropical), Hawaii, Kaneohe Bay, SE Pacif.
N: 80
Lg.:
(66) F: 0,44-0,3; M: 0,43-0,375; (109) F: 0,44-0,37; M: 0,47-0,37; (155) F: 0,46-0,43; M: 0,39; (179) F: 0,43-0,36; (434) F: 0,42-0,35; (624) F: 0,41-0,37; (634) F: 0,42-0,38; (649) F: 0,41; M: 0,37; (788) F: 0,44-0,4; M: 0,43-0,4 [grande forme]; 0,35-0,31 [petite forme]; (880) F: 0,30-0,44; M: 0,37-0,40; (991) F: 0,36-0,42; M: 0,39-0,41; (1047) F: 0,45; {F: 0,30-0,46; M: 0,31-0,47}
Rem.: épipélagique - ?.
Cette espèce apparaît moins erratique que ne le laisse supposer les localisations données par les auteurs consultés. Elle est sous-représentée dans les pêches du fait des maillages utilisés.
.
Oithona simplex quinquesetosa Früchtl,1923 (M)
Ref.: Früchtl, 1923 (p.455); 1924 b (p.74); Sewell, 1948 (p.377)
Loc.: Is. Aru
.
Oithona simplex Form typical (short form) Nishida,1985 (F,M)
Ref.: Nishida, 1985 a (p.91, figs.F,M: short form)
Loc.: Indien N, G. Arabe
Lg.: (627) F: 0,39-0,36; M: 0,41-0,39
.
Oithona simplex Large form Nishida,1985 (F)
Ref.: Nishida, 1985 a (p.96, Descr.F, figs.F: large form)
Lg.: (627) F: 0,4-0,38
Voir aussi les remarques en anglais
Dernière mise à jour : 29/09/2020

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2020. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 26 novembre 2020]

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