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Copépodes planctoniques marins
Oithona pseudofrigida  Rosendorn, 1917   (F)
Taxonomy
Ordre Cyclopoida
Famille Oithonidae

Synonymie

Oithona frigida pseudofrigida Rosendorn, 1917 (p.302); 1917 a (p.19, figs.F, Rem.); Wellershaus, 1970 (p.482); Owre & Foyo, 1967 (p.107, figs.F, Rem.); Shuvalov, 1980 (p.107, figs.F); Vives, 1982 (p.295); Fabré Navarette, 1986 (p.32); O. frigida : Pavlova, 1966 (p.44); Kovalev & Shmeleva, 1982 (p.85); Razouls & Durand, 1991 (p.75)

Références

Sewell, 1948 (p.431, 461); Vervoort, 1951 (p.149, Rem.); Nishida & al., 1977 (p.143, figs.F, Rem.); Björnberg & al., 1981 (p.663, 665, figs.F, Rem.); Nishida, 1985 a (p.72, figs.F, Rem.: p.133); Chihara & Murano, 1997 (p.938, Pl.196: F); Bradford-Grieve & al., 1999 (p.886, 966, figs.F); Conway & al., 2003 (p.203, figs.F,M, Rem.); Vives & Shmeleva, 2010 (p.70, figs.F, Rem.)

Figures

Planche 1 Issued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.73, Fig.39].
Female: a, habitus (dorsal); b, forehead (lateral); c, A1; d, A2; e, Md; f, Md (biting edge); g, Mx1; h, P5 (ventral view).
Nota: Proportional lengths of urosome segments and caudal ramus 11:31:15:14:15:14.
Planche 2 Issued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.74, Fig.40].
Female: a, thoracic segment 5 and genital segment (lateral left side); b, anal segment and caudal rami (dorsal); c, idem (ventral); d, Mx2; e, Mxp.
Planche 3 Issued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.75, Fig.41].
Female: a, P1; b, P2; c, P3; d, P4.

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, 0, 1; 1, 1, 5.
P4: 0, 0, 1; 1, 1, 5.
Planche 4 issued from : I. Rosendorn in Wiss. Ergebn. dt. Tiefsee-Exped. \"Valdiviella\", 1917, 23. [p.19, Fig.9].
Female : a, habitus (dorsal); b, forehead (lateral); c, Mx1; d, Md (mandibular palp); e, P1; f, P2; g, P3; h, P4.
Nota: Distal outer seta of exopod 3 of P4 short.
Planche 5 issued from : H.B. Owre & M. Foyo in Fauna Caribaea, 1, Crustacea, 1: Copepoda. Copepods of the Florida Current. 1967. [p.107, Figs.781, 782, 783]. As. Oithona frigida var. pseudofrigida.
Female: 781, rostrum; 782, exopod of P1; 783, exopod of P4.

Nota: One female reported from the Florida Current, probably stage V. The specimen fits Rosendorn's description in detail except in the length of spines on P2 and 3, the latter being the one worthy of note. Rosendorn's illustration shows the lateral spines on exopod 3 of P3 about equal length, and Kiefer (1929) stated that the distal spine is short, no longer than the proximal one (in our specimen the distal spine is longer than the proximal one).
Planche 6 Issued from : S. Nishida, O. Tanaka & M. Omori in Bull. Plankton Soc. Japan, 1977, 24 (2). [p.143, Fig.16].
Female (from Suruga Bay and adjacent waters): a, habitus (dorsal), b, forehead (lateral); c, Md; d, Mx1; e, P1; f, P2; g, P3; h, P4.

Nota: Setae formula 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: 1,0,1; 1,1,5. P4: 0,0,1; 1,1,5.
Prosome length/urosome length = 1.24-1.35.

Références complémentaires

Lozano Soldevilla & al., 1988 (p.61); Lan Y.-C. & al., 2008 (p.61, Table 1, % vs stations)

Distribution

Cartes et graphiques additionels

Carte 5 Issued from : S. Nishida in Bull. Ocean Res. Inst., Univ. Tokyo, 1985, No 20. [p.133, Fig.83].
Indo-Pacific geographical distribution of Oithona pseudofrigida.
Carte 6 issued 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.

Localisations

South Africa, Namibia, Canary Is., off Morocco-Mauritania, off Cape Finisterre, Cuba, Brazil, Yucatan, Florida, Medit. (E Basin), W Indian, Indian, China Seas (East China Sea), NW Taiwan (25°30'N, 123°E), Japan

Citations

N: 10

Dimensions (mm)

(155) F: 1,24-1,07; (627) F: 1,25; 1,22; {F: 1,07-1,25}

Remarques

mésopélagique.
Les formes citées comme O. frigida de l’atlantique subtropicale et de Méditerranée sont considérées comme appartenant à cette espèce.

Voir aussi les remarques en anglais
Dernière mise à jour : 18/05/2016