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Marine Planktonic Copepods
Acartia (Odontacartia) bowmani  Abraham, 1976   (F,M)
Taxonomy
Order Calanoida
Superfamily Diaptomoidea
Family Acartiidae
Sub-Genus Odontacartia

Synonymy

Acartia spinicauda : Wellershaus, 1969 (p.275, figs.M);
A. centrura : Tranter & Abraham, 1971 (p.223, fig.M).

References

Abraham, 1976 (p.77, figs.F,M); Srinui & al., 2019 (p.89, 91, Rem: F,M); Lee S. & al. (p.83, Table 3) .

Figures

Plate 1 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.75, Figs.1-3].
Female (from Cochin, S India): 1, habitus (dorsal); 1a, urosome (dorsal); 2, P5; 3, right A1.
Plate 2 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.76, Figs.7-12].
Male: 7, urosome (dorsal); 8, P5 (posterior view); 9, Md (masticatory edge); 10, Mxp; 11, P1; 12, P4.
Plate 3 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.79, Table I].
Comparative list of characters female of A. bowmani and A. centrura.
Plate 4 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.79, Table II].
Comparative list of characters male of A. bowmani and A. centrura.
Plate 5 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.79, Table III].
Comparative list of characters male of A. bowmani and A. spinicauda.
Plate 6 issued from : S. Abraham in Crustaceana, 1976, 30 (1). [p.80, Table IV].
Comparative list of characters female and male of A. bowmani, A. chilkaensis and A. chilkaensis var. sittangi.
Plate 7 Issued from : S. Wellershaus in Veröf. Inst. Meeresf. Bremerhaven, 1969, XI. [p. 274, Fig. 76-78]. As Acartia (Odotacartia) spinicauda.
Male (from Cochin Backwater and outlet, W Thevara): 76, P5; 77, urosome (dorsal); 78, distal part of right A1 (spines black).

Nota:
- Ratio prosome urosome 3.1-3.3.
- A flattened hair on the inner side of the left exopod 2-3 of P5 which is different in other localities (see Steuer, 1923).
- 2 strong setae or spines on the distal end of segments 22 and 23 on the right A1 (black in fig.78) ; segment 16 bears a spatula-shaped spine in addition to a pointed spine.
- There are no additional spinules between the two spines of urosomal segment 4 (in contrast to Giesbrecht's figure (1892) for A. spinicauda.
Plate 8 Remark: Erratum concerning the name: read Srinui and not Siruani.
Female:
1 - Genital double-somite lacking posterodorsal processes.
2 - Ventroposterior corners of prosome round with pair of acutely pointed processes not reaching beyond half of genital double-somite.

Male:
1- Urosomite 3 with large spine-like processes dorsally.
2 - Dorsal processes of urosomite 3 short, reaching posterior-most border of urosomite 4.
3 - Urosomites 3 and 4 each lacking prominences between pair of dorsal processes.
4 -, Inner seta of terminal endopodal segment of left P5 nearly equal to terminal segment.
Plate 9 Issued from : S. Lee, H.Y. Soh & W. Lee in ZooKeys, 2019, 893. [p.84, Table 3]. Acartia (Odontacartia) bowmani: Morphological characters.
Compare with other Odontacartia species.

Nota:
1 - Absence of spine on 1st to 2 nd segments of female A1 .....2.
2 - Dorsal surface of female genital double-somite devoid of processes (spines and spinules) ....... 3.
3 - Female caudal rami twice longer than wide; medial process and 2nd exopodite segment of male left P5 almost similar in length.

Complementary References

Madhupratap & Haridas, 1986 (p.105, tab.2); Ramaiah & al., 1996 (p.3); Achuthankutty & al., 1998 (p.1, Table 2, fig.5, seasonal abundance vs monsoon); Madhu & al., 2007 (p.54, Table 4, abundance vs monsoon).

Distribution

NZ: 1

Distribution map of Acartia (Odontacartia) bowmani by geographical zones


Additional Maps & Charts

Map 3 issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.8, Fig.6].
Salinity ranges for A. bowmani in coastal and estuarine waters of Goa (India).
Shaded area indicates the range of higher abundance.
Map 4 issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.6, Fig.5].
Monthly occurrence of Acartia bowmani in coastal (black circle) in front of Goa and and the Mandovi estuary (clear circle).
Map 5 issued from : C.T. Achuthankutty, N. Ramaiah & G. Padmavati in Pelagic biogeography ICoPB II. Proc. 2nd Intern. Conf. Final report of SCOR/IOC working group 93, 9-14 July 1995. Workshop Report No. 142, Unesco, 1998. [p.3, Fig.2].
Hydrography of the coastal station in front of Goa and Mandovi estuarine station (W India).

Nota: The seasons are arbitrarily classified into the southwest monsoon (June-September), postmonsoon (October-January) and premonsoon (February-May).

Localisations

India (Goa, Cochin, Kerala), Burhabalanga estuary), Bay of Bengal

Quotations

N: 8

Dimensions (mm)

(170) F: 1,3-1,2; M: 1,1; {F: 1,20-1,30; M: 1,10}

Remarks

brackish, estuary. After Wellershaus (1969, p.275), samples from water salinity between 10 and 31 p.1000.
Last update : 09/12/2021

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