Aetideus bradyi - Fiche d'espèce - Copépodes planctoniques marins

Aetideus bradyi A. Scott, 1909 (F, ?M)

Taxonomy

Ordre Calanoida

détails

Superfamille Clausocalanoidea

détails

Famille Aetideidae

détails

Genre Aetideus

détails liste des espèces pour ce genre

Abréviations ou symboles

Synonymie

Euaetideus bradyi : Wilson, 1942 a (p.183); C.B. Wilson, 1950 (p.202, Descr.M, figs.M); Vervoort, 1957 (p.48, figs.F); Fagetti, 1962 (p.17); Grice, 1962 (p.192, figs.F, Rem.); Vervoort, 1963 b (p.122, Rem.); Fleminger, 1967 a (tabl.1); Vidal, 1968 (p.27, figs.F); Tanaka & Omori, 1970 (p.111); Björnberg, 1973 (p.327, 385); Dawson & Knatz, 1980 (p.6, figs.F,M); Björnberg & al., 1981 (p.604, 630, fig.F); Herman & Mitchell, 1981 (p.739, Table 2, length-volume); De Decker, 1984 (p.316); Brinton & al., 1986 (p.228, Table 1); Palomares Garcia & Vera, 1995 (tab.1); Jimenez-Perez & Lara-Lara, 1988; Rosales & Sepulveda, 1992 (p.38); Escribano & Hidalgo, 2000 (p.283, tab.2); Hidalgo & Escribano, 2001 (p.159, tab.2); Escribano, 2006 (p.20, Table 1); Ayon & al., 2008 (p.238, Table 4: Peruvian samples); Escribano & al., 2009 (p.1083, Table 1, figs.6, 10); Tutasi & al., 2011 (p.791, Table 2, abundance distribution vs La Niña event)

Références

Liste des auteurs étudiés

A. Scott, 1909 (p.38, Descr.F, figs.F); Tanaka, 1953 (p.130); 1957 a (p.34, figs.F,M); Markhaseva, 1996 (p.17, figs.F, Rem.); Chihara & Murano, 1997 (p.682, Pl.33: F)

Figures

Planche 1 issued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1957, VI (1). [p.35, Fig.24].
Female: a, habitus (dorsal); b, forehead (lateral); c, last thoracic segment and urosome (lateral left side); d, rostrum; e, anal segment and furca.

Nota: Crest well marked (in lateral view). Rostrum short and strong, with divergent points; knob-like processes of inner side of the wide base are observed in trace. Proportional lengths of urosomites and furca 35:18:12:15:20 = 100. Furcal rami two times as long as wide, appendicular seta long. A1 (25-segmented) reaches back to distal margin of 4th urosomal segment.

Male: f, habitus (dorsal); g, last thoracic segment (lateral); h, forehead (lateral); i, P5.
Nota: Forehead slightly chitiniseed. Rostrum represented by a small knob-like projection (in lateral view). Proportional lengths of urosomites and furca 19:22:19:19:4:17 = 100. A1 reaches back to distal margin of 2nd urosomal segment. Mx1: outer lobe with 5 long setae, exopod with 10 setae.

Planche 2 issued frm : A. Scott in Siboga-Expedition, 1909, XIX a. [Plate V, Figs.1-12].
Female (from Indonesia-Malaysia): 1, hhabitus (dorsal); 2, forehead (lateral); 3, last thoracic and genital segments (left side); 4, rostrum; 5, A1; 6, A2; 7, Md; 8, Mx2; 9, Mxp; 10, P1; 11, P2; 12, P4.

Nota: The last thoracic chitinized spines are sometimes easily damaged.

Species Aetideus bradyi - Planche 3 of morphological figures

Planche 3 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.21]. As Euaetideus bradyi.
Female: a, c, habitus (lateral and dorsal, respectively); b, right A1; d, forehead (lateral); e-f, posterior part cephalothorax and urosome (lateral and dorsal, respectively).

Species Aetideus bradyi - Planche 4 of morphological figures

Planche 4 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.22]. As Euaetideus bradyi.
Female: a, right P1 (anterior); b-d, P2 to P4 (left legs); e, right A2; f, right Md (mandibular palp).

Species Aetideus bradyi - Planche 5 of morphological figures

Planche 5 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.23]. As Euaetideus bradyi.
Female: a, right Mx2; b, left Mx1; c, left Mxp; d, Md (cutting edge).

Species Aetideus bradyi - Planche 6 of morphological figures

Planche 6 issued from : W. Vervoort in B.A.N.Z. Antarctic Reseach Expedition, Report Ser. B, Vol. III., 1957 [Fig.20 b]. As Euaetideus bradyii.
Female: distal portion of rostral plate.

Planche 7 issued from : E.L. Markhaseva in Trudy Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.17, Fig.5].
Female (from 12°49'S, 96°58'E).
R: rostrum (anterior); Ce: cephalon (lateral).

Planche 8 Aetideus bradyi female:
1 - Posterior corners of last thoracic segment prolonged into wing-like lobes pointed at tops, reaching at least the middle of urosomal segment 2. Anterior part of cephalon with crest.
2 - Excavation between rostral rami without thickenings.

Références complémentaires

Liste des auteurs étudiés

Sewell, 1948 (p.347, 545, 550, 551, 566, 568); Furuhashi, 1966 a (p.295, vertical distribution in Kuroshio region, Table 9); Chahsavar-Archad & Razouls, 1982 (p.37); Brenning, 1983 (p.2, Rem.); 1985 a (p.28, Table 2); Suarez-Morales & Gasca, 1998 a (p107); Lapernat, 2000 (tabl.3, 4); Razouls & al., 2000 (p.343, Appendix); Suarez-Morales & al., 2000 (p.751, tab.1); Rebstock, 2001 (tab.2); 2002 (p.71, Table 3, Fig.4, climatic variability); Shimode & Shirayama, 2004 (tab.2); Lavaniegos & Jiménez-Pérez, 2006 (p.135, tab.2, 4, Rem); Lopez Ibarra, 2008 (p.1, Table 1: abundance, Table 2: Rem.); Galbraith, 2009 (pers. comm.); Hernandez-Trujillo & al., 2010 (p.913, Table 2); Palomares-Garcia & al., 2013 (p.1009, Table I, abundance vs environmental factors); in CalCOFI regional list (MDO, Nov. 2013; M. Ohman, pers. comm.); Mendoza Portillo, 2013 (p.37: Fig.7, seasonal dominance); Lidvanov & al., 2013 (p.290, Table 2, % composition); Lopez-Ibarra & al., 2014 (p.453, Table 2, biogeographical affinity); Fierro Gonzalvez, 2014 (p.1, Tab. 3, 5, occurrence, abundance); Zakaria & al., 2016 (p.1, Table 1, Rem.)

Distribution

NZ: 15

Carte de distribution de Aetideus bradyi par zones géographiques

Distribution map of Aetideus bradyi for the Zone Mediterranean Sea, Black Sea

Distribution map of Aetideus bradyi for the Zone Indian Ocean

Distribution map of Aetideus bradyi for the Zone China Seas, Vietnam

Distribution map of Aetideus bradyi for the Zone Antarctic and for the Zone Sub-Antarctic

Cartes et graphiques additionels

Carte 6 issued from : J.M. Bradford in N.Z. Jl Mar. Freshw. Res., 1971, 5 (1). [p.35, Fig.14].

North Pacific Ocean showing distribution of four Aetideus species.

Localisations

Glossaire géographique

Antarct. (Pacif. SE), South Africa (E), G. of Guinea, NW Africa, off S Cape Verde Is., off Morocco-Mauritania, S Brazil, Indian, Madagascar, Indonesia-Malaysia, Philippines, China Seas (East China Sea), off Taiwan, Japan (Izu), Pacif. (W equatorial), Pacif. (equatorial), E Pacif., Queen Charlotte Is., Vancouver Is., California, Baja California (Bahia Magdalena), G. of California, W Mexico, Galapagos-Ecuador, Peru, Chile, (N & S, sub-Antarct., off Valparaiso, Mejillones Peninsula), E Medit. (W Egyptian coast inZakaria & al. (2016)

Type locality: Malay Archipelago.

Citations

N: 50

Dimensions (mm)

Références de auteurs concernant les dimensions

(5) F: 1,8; (14) F: 1,67-1,375; (25) F: 1,69; (37) F: 1,8-1,38; (39) F: 1,46; M: 1,4; (101) F: 1,7-1,6; (113) F: 1,5; (137) M: 1,5; (187) F: 1,84-1,81; (202) F: 1,69-2,07; (866) F: 1,38-1,7; M: 1,5; (1109) F: 1,63; {F: 1,375-2,070; M: 1,400-1,500}

The mean female size is 1.653 mm (n = 17; SD = 0.1895), and the mean male size is 1.467 mm (on 3 specimens only). The size ratio (male : female) would be approximately 0.96.

Remarques

Vervoort (1963 b) émet des doutes sur l’identification de cette espèce par Tanaka (1953, 1957) et Tanaka & Omori (1970).
Markhaseva (1996) n’ admet pas la validité des mâles décrits par Wilson (1950) et Tanaka (1957 a).
Sampling depth (Antarct., sub-Antarct.) : 0-100 m.

Voir aussi les remarques en anglais

Dernière mise à jour : 03/12/2020