Candacia bipinnata
Giesbrecht (1889)
Download a fact sheet for Candacia bipinnata (PDF 484KB)
Taxonomy
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Maxillopoda |
| Subclass | Copepoda |
| Order | Calanoida |
| Family | Candaciidae |
| Genus | Candacia |
| Species | bipinnata |
Size
- Female: 2.35 – 2.50 mm
- Male: 0.70 – 0.90 mm
Distinguishing characteristics
- Lateral extensions on the genital somite
Male
- Rostrum platelike and strong with rounded points
- Right A1 geniculate, with serrations on section 18, segments 2-3 fused, segments 17-18 separate, segments 19-20 fused
- In lateral view distal end of posterior prosome is truncate, tip of process reaches beyond posterior end of genital somite
- Posterior prosome and genital somite asymmetrical with pointed extensions on the right, both extending posteriorly
- Right P5 chelate, left with hairs and a single, tiny terminal spine
Female
- Posterior prosome corners extended into symmetrical points
- Genital somite large with triangular lateral extension on each side
- Lamella on ventral surface of urosome somite 2
- P5 asymmetrical and terminated in obtuse point and some miniscule outer edge spines
Distribution
- Epipelagic; mesopelagic
- Mainly open ocean; occasionally coastal
- Widespread in tropical , subtropical and temperate waters
- Pacific and Indian Oceans and Atlantic Oceans
Ecology
- Can live in the neuston
- Maxillae suited to grasping and piercing prey
- Feed selectively on larvaceans and other gelatinous zooplankton
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., E. L. Markhaseva, et al. (1999). Copepoda. South Atlantic Zooplankton. D. Boltovskoy. Leiden, The Netherlands, Backhuys Publishers. 1: 869-1098.
- 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.
- Chen Q. C. & Zhang S. C, 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).
- Hattori et al. (1983)
- Ohtsuka & Onbé (1989)
- 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