Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Acartiidae ( Family )
            Acartia ( Genus )
                Acanthacartia ( Sub-Genus )
Acartia (Acanthacartia) steueri  Smirnov, 1936   (F,M)
Ref.:
Smirnov, 1936 (p.87, figs.F,M); Brodsky, 1950 (1967) (p.425, figs.F,M); Tanaka, 1965 (p.388, figs.F, M); Kos, 1985 (p.246, figs.F,M); Nishida, 1985 (p.136, figs.F,M, Rem.); Chihara & Murano, 1997 (p.671, Pl.18,19: F,M).
Species Acartia (Acanthacartia) steueri - Plate 1 of morphological figuresissued from : O. Tanaka in Publs Seto Mar. Biol. Lab., 1965, XII (5). [p.389, Fig.245].
Female: a, habitus (dorsal); b, forehead (left lateral side); c, last thoracic segment and urosome (left lateral side); d, P5; e, proximal portion of A1.

Male: f, last thoracic segment and urosome (left lateral side); g, P5.


Species Acartia (Acanthacartia) steueri - Plate 2 of morphological figuresissued from : S. Nishida in Publ. Seto Mar. Biol. Lab., 1985, 30 (1/3). [p.135, Fig.6, e-i].
Female (from Kabira Bay, Ishigaki Is.): e, 5th thoracic segment and urosome (dorsal); f, P5.

Male: g, 5th thoracic segment and urosome (dorsal); h, right P5; i, left P5.
Nota: In the present specimens, the two ventral spinules on the 2nd abdominal segment described by Tanaka (1965) were present in some but absent in the others, and the presence of these spinules is variable within a local population.


Species Acartia (Acanthacartia) steueri - Plate 3 of morphological figuresissued from : S. Smirnov in Zool. Anz., 1936, 114 (3-4). [p.88, Fig.1-3].
Female (from Belzow and Petrow Is.: off Vladivostok): 1, urosome (dorsal); 2, P5.

Male: 3, P5.


Species Acartia (Acanthacartia) steueri - Plate 4 of morphological figuresIssued from : M. Chihara & M. Murano in An Illustrated Guide to Marine Plankton in Japan, 1997. [p.676, Pl. 18, fig.9 a-c].
Female: a, habitus (dorsal); b, P5; c, last thoracic segment and urosome (dorsal).

Nota: numbers show characteristics of this species to compare with A. fossae, A. tumida.


Species Acartia (Acanthacartia) steueri - Plate 5 of morphological figuresIssued from : M. Chihara & M. Murano in An Illustrated Guide to Marine Plankton in Japan, 1997. [p.677, Pl. 19, fig.9 a-d].
Male: a, habitus (dorsal); b, last thoracic segment and urosome (dorsal); c, 2nd urosomal segment; d, P5.

Nota: numbers show characteristics of this species to compare with A. tumida, A. fossae.

Compl. Ref.:
Uye, 1980 (p.1); Uye, 1980 (p.1, development); 1980 a (p.11, isochronal development); 1981 (p.255, egg production); Ueda & al., 1983 (p.165, Table 1, 2, 4, swarms); Yoo, 1991 (tab.1); Yoo & al., 1991 (p.263); Marcus, 1996(p.143); Mauchline, 1998 (tab.40, 45, 47, 48, 51); Shimode & Shirayama, 2004 (tab.2); Kurihara & al., 2004 (p.721, Rem.: CO2 effects); Youn & Choi, 2007 (p.222: Table1, egg production); Ohtsuka & al., 2008 (p.115, Table 5).
NZ: 3

Distribution map of Acartia (Acanthacartia) steueri by geographical zones
Species Acartia (Acanthacartia) steueri - Distribution map 2issued from : S.-I. Uye in Bull. Plankton Soc. Japan, 1980, 27 (1). [p.14, Fig.4].
Post-embryonic development of Acartia steueri at 13.1, 16.8, 20.3 and 23.0°C, cultered with excess food.

Nota: Isochronal development may be more advantageous than onoisochronal development for some species to ensure high reproductive potential of the population by reducing the mortality during copepodite stages.
Loc:
Kuril Is., China Seas (Yellow Sea), S Korea, Japan Sea (off Vladivostok), Japan (Ishigaki Is., Tanabe Bay, Onagawa Bay, N Kyushu)
N: 13
Lg.:
(22) F: 1,7-1,5; M: 1,3-1,2; (119) F: 1,6-1,38; M: 1,25-1,13; (287) F: 1,674-1,449; M: 1,306-1,208; (866) F: 1,1-1,6; M: 0,9-1,3; {F: 1,10-1,70; M: 0,90-1,306}
Rem.: coastal.
After Ueda & al., 1983 (p.167, Table 2 & p.169: Table 4) at Tanabe Bay (A), Shijiki Bay (B, 1978) and (C, 1980): (1)-Shape and diameter of swarm, (2)-depth (m), (3)- swarming position, (4)-number of samples examined, (5)-Mean % of adults, (6)- Mean % of females among adults.
A: (1)- irregular balls (10-50 cm); (2)- 3-10 m; (3)- over rocky shore; (4)- 1; (5)- 43.1; (6)- 55.9.
B: (1)- not determined; (2)- 3-5 m; (3)-throughout entire sea grass beds; (4)-8; (5)- 99.2 (97.5-100.0); (6)- 91.2 (83.3-100.0).
C: (1)- irregular balls (30-60 cm); (2)- 14 m; (3)- over sandy flat bottom; (4)- 1; (5)-50.0; (6)- 37.0.
Last update : 26/09/2014
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