Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Calanoidea ( Superfamille )
        Paracalanidae ( Famille )
            Bestiolina ( Genre )
Bestiolina coreana  Moon, Lee & Soh, 2010   (F,M)
Ref.:
Moon & al., 2010 (p.33, figs.F,M); Soh & al., 2013 (p.57, figs.F,M)
Espèce Bestiolina coreana - Planche 1 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.34, Fig.1].
Female (from 35°22'24''N, 126°20'30''E): A-B, habitus (dorsal and lateral, respectively); C, A1; D, A2.
Scale bars in micrometer.
Nota : Rostral filaments thick and short.
Cephalosome and 1st pedigerous segment fused, 4th and 5th separated. Posterior corners of prosome rounded and with row of spinules posterodorsally.
A1 25-segmented, reachingto sdistal part of 3rd urosomite ; ancestral segments II to IV incompletely separated ; segments XXVII-XXVIII comoletely fused.
A2 : coxa and basis with 1 and 2 setae, respectively ; endopod 2-segmented, proximal segment with 2 setae and row of spinules subterminally, 7 setae terminally and oblique row of tiny spinules on anterior surface ; exopod 7-segmented, with setal formula : 1, 3, 1, 1, 1, 1, 1+3.
Urosome 4-segmented.
Genital double-somite symmetrical, as long as wide ; genital operculum located ventroposteriorly.
Caudal rami nearly symmetrical, each with 5 setae, lacking setae I and II.


Espèce Bestiolina coreana - Planche 2 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.36, Fig.2].
Female: A, Md; B, Mx1; C, Mx2; D, Mxp; E, P5.
Scale bars in micrometer.
Nota : Md : ganthobase well developed, cutting edge with short teeth and dorsal seta ; basis of palp with 4 setae ; exopod 5-segmented, with setal formula : 1, 1, 1, 1, 2 ; endopod 2-segmented, proximal and distal segments with 4 and 11 setae, respectively.
Mx1 : praecoxa and coxa incompletely fused ; praecoxal arthrite with 14 setae, rows of spinules on posterior surface ; coxa with 3 setae on proximal and distal endites, respectively and 9 setae on epipodite ; basis with 4 setae on endite ; endopod and exopod with 14 and 11 setae, respectively.
Mx2 : praecoxa and coxa incompletely fused, proximal praecoxal endite with 5 setae, distal and coxal endites with 3 setae each ; basis with 4 setae ; endopod 3-segmented, with 1, 3 and 4 setae on segments 1 to 3, respectively.Mxp : sybcoxa robust, with setal formula : 1, 2, 2, 4 and oblique rows of tiny spinules on posterior surface ; basis with 3 setae and row of spinules on medial surface ; endopod 6-segmented, with setal formula : 2, 3, 4, 3, 3+1, 4.


Espèce Bestiolina coreana - Planche 3 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.37, Fig.3].
Female (holotype): A, P1; B, P2; C, P3; D, P4.
Scale bars in micrometer.


Espèce Bestiolina coreana - Planche 4 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.35].
Female: Setae and spines formula of swimming legs from P1 to P4.


Espèce Bestiolina coreana - Planche 5 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.44, Table1].
Presence and number of spinules on the anterior surface of the exopods and endopods of swimming legs 2 - 4.


Espèce Bestiolina coreana - Planche 6 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.41, Fig.6].
Female paratype: Variant of number of spinules. A-E, P1; F, G, P3; H, I, P4.
Scale bars in micrometer.
Nota : There are variations in number of spinules on the posterior surface of coxal, endopodal and exopodal segments of P2 to P4 among individuals from the Yellow Sea.


Espèce Bestiolina coreana - Planche 7 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.42, Fig.7, A-D].
SEM micrographs female: A, forehead with rostral filaments (frontal view); B, last pedigerous somite (dorsal view); C, 1st antennular segment with row of spinules; D, P5.


Espèce Bestiolina coreana - Planche 8 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.42, Fig.7, E-H].
SEM micrographs female: E-F, last pedigerous somite, right and left, respectively (ventral view); G, genital double-somite (ventral view); H, genital aperture (ventral view).
Arrows indicate the spinules and setules.


Espèce Bestiolina coreana - Planche 9 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.38, Fig.4].
Male: A-B, habitus (dorsal and lateral, respectively); C, A1; D, A2.
Scale bars in micrometer.
Nota : Rostral filaments thick (more slender than in female). Prosome-urosome ratio 2.4 :1.
Cephalosome bearing dorsal hump.
Cephalosome and 1st pedigerous segment fused, 4th and 5th separated. Urosome of 5 free somites, 2 nd urosomal somite longest.
Caudal rami nearly symmetrical, about 2 times longer than wide, each with 5 setae, lacking setae I and II.
A1 20-segmented, extending to distal part of 2 nd urosomite ; ancestral segments I to IV, V to VIII, and Ix to X completely fused
A2 biramous, but atrophied ; coxa and basis fused, with single seta ; endopod 2-segmented, proximal segment without seta, distal one furnished with rows of spinules, subtermunally with 5 setae and terminally 6 setae ; exopod incompletely fused, with 5 setae.


Espèce Bestiolina coreana - Planche 10 de figures morphologiquesissued from : S.Y. Moon, W. Lee & H.Y. Soh in Proc. Biol. Soc. Washington, 2010, 123 (1). [p.40, Fig.5].
Male: A, Md; B, Mxp; C-F, P1 to P4; G, P5.
Scale bars in micrometer.
Nota : Md without coxal gnathobase ; basis bearing single seta medially ; exopod 4-segmented with setal formula : 1, 1, 1, 3 : endopod 2-segmented, 1st segment with single seta, 2 nd with 8 setae.
Mx1 and Mx2 rudimentary.
Mxp : robust syncoxa without setae ; basis with single seta and row of spinules medially ; proximal endopodal segment with 5 setae, of which outer seta robust, distal segment with 4 setae, of which 1 outer and 1 distal setae robust.
P5 strongly asymmetrical . Right leg rudimentary. Left leg longer than urosome, uniramous, 5-segmented ; basis and 1st exopodal segment unarmed ; 2 nd with pointed process on distal margin ; terminal one with pointed process and inner long apical spine.

Ref. compl.:
Moon & al., 2012 (p.1, Table 1, 2, figs.10, 11, seasonal & spatial variations)
NZ: 1

Carte de distribution de Bestiolina coreana par zones géographiques
Loc:
Yellow Sea (SW of coastal waters of Korea, Muan Bay)
N: 3
Lg.:
(1042) F: 0,90-0,95; M: 0,85-0,96; {F: 0,90-0,95; M: 0,85-0,96}
Rem.: For Moon & al. (2010, p.39) the species resembles B. sinica (Shen & Lee, 1966), but it differs by the presence/absence of spinules on surface exopodal segments of P2-P4. B. coreana is found predominantly in waters with a temperature greater than 20°C and in salinities ranging from 28 to 32 psu (18.20 - 20.80 p.1000) in the Younggwang coastal region, when a large volume of fresh water flows into the region from the watan and Bulgap rivers. When the salinity increased above 32.0 psu, the species was replaced by Paracalanus parvus s.l.
Dernière mise à jour : 21/09/2015

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 02 décembre 2021]

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