Stephanopyxis turris   (Greville) Ralfs ex Pritchard,  1861 (Diatom)
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Bacillariophyceae
Order:Melosirales
Family:Stephanopyxidaceae

Image copyrights: Plankton net

Description
Size: Diameter 36-57 ┬Ám.

Color: Yellow brown.

Individual, vegetative cells of Stephanopyxis turris are usually slightly higher than wide (with a high valve mantle). The cells are coarsely areolated. Adjacent cells are joined into short, straight chains by the external parts of the long labiate process located in a marginal ring on the junction between valve face and valve mantle. A second, far less conspicuous ring of labiate processes is also present. Stephanopyxis turris is known to produce resting spores.

Reproduction is general for group: both sexual and asexual.

Two similar species are known. These can be distinguished by their areolation pattern. In Stephanopyxis turris the areolae are of the same size on the whole valve, whereas in the similar species Stephanopyxis palmeriana the areolae are larger on the valve face than on the valve mantle.


Synonym (s)
Creswellia turris Greville & Arnott in Gregory, 1857
(Basionym)
Creswellia turris Greville & Arnott, 1857

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Pelagic, Estuarine, Coastal
Trophic Level:  Producer
Predator:  Marine microorganisms and animal larvae

Biogeography


• Orissa, Mahanadi Estuary (Lat: 20.28) (Long: 86.70) INDIA (Record: 2005, 2006)
• Orissa, Chilika Lake INDIA (Record: 18/05/2001-21/05/2001, 18/11/2001-21/11/2001)
• Tamil Nadu, Off Tuticorin (Lat: 8.71) (Long: 78.2) INDIA (Record: 1987-1989)
• Kerala, Kochi Backwaters INDIA (Record: 1970-1972)
• Tamil Nadu, Pichavaram Mangroves (Lat: 11.48) (Long: 79.76) INDIA (Record: 01/1985-12/1985)
• Kerala, Kodikkal INDIA

Literature Source(s)
  • Naik, S; Acharya, BC and Mohapatra, A (2009) Seasonal variations of phytoplankton in Mahanadi estuary, east coast of India Indian Journal of Marine Sciences 38(2) 184-190 Available at - http://nopr.niscair.res.in/bitstream/123456789/4669/1/IJMS%2038%282%29%20184-190.pdf
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Plankton*Net Data Provider at the Alfred Wegener Insitute for Polar and Marine Research Available at - http://dx.doi.org/10013/de.awi.planktonnet
  • Hasle, GR and Syvertsen, EE (1997) Marine diatoms Identifying marine phytoplankton Academic Press, San Diego, USA 5-385 Available at - NIO, Goa
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Rath, J and Adhikary, SP (2006) Seasonal variation of phytoplankton in Chilika Lake, east coast of India Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu, India 28(1) 43-48 Available at - NIO, Goa
  • Subramanian, SK and Krishnamurthi, MS (1997) Studies on the species composition of neritic diatoms in the aquatic realm off Tuticorin Coast in the Gulf of Mannar-Bay of Bengal Seaweed Research and Utilisation Seaweed Research and Utilisation Association 19(1-2) 1-11 Available at - NIO, Goa
  • Gopinathan, CP (1972) Seasonal abundance of phytoplankton in the Cochin backwaters Journal of the Marine Biological Association of India Marine Biological Association of India,Cochin 14(2) 568-577 Available at - http://eprints.cmfri.org.in/1566/
  • Kannan, L and Vasantha, K (1992) Microphytoplankton of the Pitchavaram mangals, southeast coast of India: species composition and population density Hydrobiologia Springer 247 77-86 Available at - http://dx.doi.org/10.1007/BF00008206
  • Sanilkumar, M G; Dr.Joseph, K J; Dr. Saramma, A V (2009) Planktonic Microalgae Microalgae in the Southwest Coast of India 34-114 Available at - http://dyuthi.cusat.ac.in/xmlui/purl/1922

Page last updated on:2011-01-07

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