Candacia discaudata
Scott A. (1909)
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Taxonomy
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Maxillopoda |
| Subclass | Copepoda |
| Order | Calanoida |
| Family | Candaciidae |
| Genus | Candacia |
| Species | discaudata |
Size
- Female: 1.55 - 1.94 mm
- Male: 1.48 - 1.82 mm
Distinguishing characteristics
- Genital somite and P5 form
Male
- Genital somite asymmetrical, with bulges on right hand side
- Viewed from the right the inflated region bears a small tooth at each end
- Anal somite is asymmetrical
- Right A1 geniculate, outer margin of segments 16-18 with pigmented teeth
- P5 left segments moderately long and broad, segment 4 with 2 small outer edges spines and 2 small apical spines
- P5 right segment 3 has a large projection near distal end of inner margin
Female
- A1 23 segmented and extends to middle of genital somite
- Posterior prosome points symmetrical, projected slightly forward
- P2-4 exopod segment 3 spines more than half length of terminal segment
- Genital somite slightly asymmetrical, no lateral protrusions, short setae on each side
- second urosome somite is expanded in lateral view
- anal somite short and asymmetrical
- P5 asymmetrical, apex of segment 3 produced into 3 closely set teeth, outer margin with 2 small spines, 2 moderately long setae on inner margin
Distribution
- Epipelagic; open ocean
- Tropical and subtropical
- Pacific and Indian Oceans; probably not Atlantic
Ecology
- Specialised predator, grasping prey with large and robust maxillae
- Larvaceans are major prey item
References
- Boxshall, G. A. and S. H. Halsey (2004). "An introduction to copepod diversity." Ray Society Publications 166: i-xv, 1-966.
- Bradford-Grieve, J. M., (1999) The marine fauna of New Zealand: pelagic calanoid copepoda: Bathypontiidae, Arietellidae, Augaptilidae, Heterorhabdidae, Lucicutiidae, Metridinidae, Phyllopodidae, Centropagidae, Pseudodiaptomidae, Temoridae, Candaciidae, Pontellidae, Sulcanidae, Acartiidae, Tortanidae. National Institute of Water and Atmospheric Research, Wellington, New Zealand.
- Conway DVP, White, R.G., Hugues-Dit-Ciles, J., Gallienne, C.P. and Robins, D.B. (2003) Guide to the coastal and surface zooplankton of the south-western Indian Ocean, Vol Occasional Publications No. 15. Marine Biological Association of the United Kingdom.
- Chen Q.-c. & Zhang S.-z, 1965. The planktonic copepods of the Yellow Sea and the East China Sea. I. Calanoida. Studia mar. sin., 7: 20-131. (Chinese with English summary).
- Mori T., (1937) 1964. The pelagic Copepoda from the neighbouring waters of Japan. Second edition edited by S. Shirai., Tokyo: 1-150, pls 1-80.
- Mulyadi, 2004. The pelagic calanoid copepods of the families Acartiidae, Aetideidae, Augaptilidae, Calanidae, Calocalanidae, Candaciidae, Centropagidae, Clausocalanidae, Eucalanidae, Euchaetidae, Heterorhabdidae, Metrinidae, Paracalanidae, Phaennidae, Pseudodiaptomidae. Research Center fo Biology, Indonesia Institute of Sciences, Bogor (Publish., Indonesia), pp. 1-195.
- Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2009. Diversity and Geographic Distribution of Marine Planktonic Copepods. Available at http://copepodes.obs-banyuls.fr/en
- Scott A. 1909, Siboga-Expedition, XIX a. [Plate XLVII, Figs.10-20].