|
|
 |
|
Calanoida ( Order ) |
|
|
|
Metridinidae ( Family ) |
|
|
|
Metridia ( Genus ) |
|
|
| |
Metridia asymmetrica Brodsky, 1950 (F,M) | |
| | | | | | | Ref.: | | | Brodsky, 1950 (1967) (p.300, figs.F,M); Minoda, 1971 (p.35); Vaupel-Klein, 1970 (p.4, 34, Rem.); Chihara & Murano, 1997 (p.837, tab.6); Markhaseva, 2001 (p.47, figs.F,M) |  issued from : E.L. Markhaseva in Zoosyst. Rossica, 2001, 9 (1). [p.63, Figs.111-120]. Female (from off cape Shipunsky, Kamchatka): 111, habitus (dorsal view); 112, cephalosome (right lateral view); 113, posterior somite of prosome and urosome (dorsal view); 114, idem (left lateral view); 115, genital somite (ventral view); 116, idem (right lateral view); 117, first leg (coxopod and basipod); 118, first leg (exopod); 119, first leg (endopod); 120, first legs. Nota : Prosome nearly wice as long as urosome. Rostrum of 2 well developed filaments. Genital somite 1.7-1.8 times as long as wide, asymmetrical, with round spermathecae situated asymmetrically, left one directly above right one. Caudal rami about 2 times as long as wide. A1 24-segmented, reaching anal somite or nearly the middle length of caudal rami. Oral parts and Mxp as described for M. pseudoasymmetrica. P1 very similar to that of M. pseudoasymmetrica.
|
 issued from : E.L. Markhaseva in Zoosyst. Rossica, 2001, 9 (1). [p.64, Figs.121-131]. Female: 121, right A1 (segments 1-6); 122, idem (segments 7-9); 123, left A1 (segments 1-4); 124, idem (segments5-9); 125, second leg; 126, second leg (endopod.1); 127, third leg (exopod). Male: 128, cephalosome (dorsal view); 129, idem (left lateral view); 130, posterior somite of prosome and urosome (dorsal view); 131, idem (left lateral view).
|
 issued from : E.L. Markhaseva in Zoosyst. Rossica, 2001, 9 (1). [p.65, Figs. 132-147]. Male: 132, left A1 (segments 1-9); 133, idem (segments 10-15); 134, idem (segments 16-20); 135, idem (segments 17-19, other view); 136, fifth legs; 137, right fifth leg; 138, idem (coxopod, basipod and exopod.1); 139, idem (exopod.2-3); 140, idem (exopod.3); 141, idem (distal part of exopod.3); 142-143, left fifth leg (different positions); 144, left fifth leg (basipod and exopod.1); 145, idem (exopod.1); 146-147, idem (exopod.2-3, different positions). Nota : Prosome 1.8-2.0 times as long as urosome. Urosomal somite 2 with small anterior swelling covered with spinules on the left and on the right ; urosomal somite 3 with short spinules in left lateral anterior part. Caudal rami about 1.9 times as long as wide. Left A1 20-segmented, geniculated, reaching uromite 4 ; right A1 reaching caudal rami. Shape of P5 segments strongly varies depending of the view.
|
 Issued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.299, Fig.205]. Female (from NW Pacific): habitus (dorsal and lateral left side); S2En1, hooks on endopodal segment 1 of P2; S5, P5. Male: habitus (dorsal); Ve, urosome (ventral); S5 (Le: left leg; Ri: right leg).
| | | | | Compl. Ref.: | | | Minoda, 1958 (p.253, Table 2, abundance); Yamaguchi & al., 2002 (p.1007, tab.1); Yamaguchi & al., 2004 (p.480, tab.2); Ikeda & al., 2006 (p.1791,Table 2); Galbraith, 2009 (pers. comm.); Homma & Yamaguchi, 2010 (p.965, Table 2); Homma & al., 2011 (p.29, Table 2, 3, 4, abundance, feeding pattern: suspension feeders); Takenaka & al., 2013 (p.201, DNA sequences vs luciferase) | | | | NZ: | 3 | | |
|
Distribution map of Metridia asymmetrica by geographical zones
|
| | | | Loc: | | | off SE Hokkaido, off SE Kuril Is., Station Knot, Okhotsk Sea, Bering Sea, S Aleutian Basin, S Aleutian Is., Station "P", off British Columbia | | | | N: | 14 | | | | Lg.: | | | (22) F: 4,2-3,9; M: 3,9-3,6; (205) M: 3,45; (208) F: 4,2; M: 3,86-3,6; (823) F: 4,2-3,9; M: 3,5-3; {F: 3,90-4,20; M: 3,0-3,90}
The mean female size is 4.080 mm (n = 5; SD = 0.1643), and the mean male size is 3.559 mm (n = 7; SD = 0.2995). The size ratio (male : female) is about 0.87. | | | | Rem.: | meso-abyssal. | | | Last update : 11/02/2016 | |
|
|
 Any use of this site for a publication will be mentioned with the following reference :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed November 21, 2024] © copyright 2005-2024 Sorbonne University, CNRS
|
|
|
|
;)
;)
;)
;)
