Coscinodiscus centralis   Ehrenberg,  1844 (Diatom)
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Bacillariophyceae
Order:Coscinodiscales
Family:Coscinodiscaceae

Image copyrights: Planktonnet

Description
Size: 100-300 µm.

Color: Yellow brown

Girdle view: Cells discoid; valves gently convex. Numerous small plate-like chloroplasts.
Valve view: Distinct rosette of large areolae, sometimes with a small hyaline area in the middle. Areola rows grouped into narrow bundles bordered by hyaline lines, distinct in weakly silicified valves and indistinct in coarsely silicified valves. Decussating arcs in the central part of the valve. Hyaline lines associated with labiate processes at the valve margin. Interstitial meshes present, identical with the pentagonal areola at the point of origin of an incomplete atria or an adjacent larger areola. Cribra resolved with light microscopy, consisting of one central pore and a marginal ring of pores. Marginal processes readily resolved with light microscopy; the smaller processes are long necked and slightly curved, the two larger processes, ca. 135˚ apart, have two "horns".

Distinctive features: Distinguished from Coscinodiscus argus and Coscinodiscus asteromphalus by the central areolae distinctly set off from the much smaller surrounding areolae, and the cribra and processes readily resolved with light microscopy; and distinguished from Coscinodiscus concinnus by the shorter pervalver axis, the more coarsely structured valves, and the marginal processes closer to the valve margin.
It is a phytosynthetic species.

Reproduction is both sexual and asexual.


Synonym (s)
Coscinodiscus asteromphalus var. centralis Grunow, 1884
Coscinodiscus oculus-iridis var. tenuistriata Grunow, 1884

Common Name (s)
Economic Importance and Threats

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

Biogeography


• Goa, Mandovi and Zuari Estuary INDIA (Record: 11/1979-10/1980)
• Goa, Zuary Estuary, Dona Paula INDIA
• Tamil Nadu, Pichavaram Mangrove INDIA (Record: 04/1980-03/1982)
• Orissa, Mahanadi Estuary (Lat: 20.28) (Long: 86.70) INDIA (Record: 2005, 2006)
• Orissa, Chilika Lake INDIA (Record: 18/05/2001-21/05/2001, 18/08/2001-21/08/2001, 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, Kavanad INDIA
• Kerala, Punnapra INDIA
• Kerala, Balathuruthu INDIA
• Kerala, Kodikkal INDIA
• Kerala, Mahe INDIA
• Tamil Nadu, Kaduviyar estuary INDIA (Record: 10/2005-09/2006)
• Westcoast INDIA
• Tamil Nadu, Parangipettai INDIA
• Tamil Nadu, Coleroon Estuary INDIA
• Tamil Nadu, Keelakarai INDIA (Record: 07/2008-12/2008)
• Tamil Nadu, Pichavaram INDIA
• Orissa, Rushikulya Estuary (Lat: 19.37) (Long: 85.05) INDIA (Record: 11/01/1989-12/01/1989)
• Andhra Pradesh, Vishakhapatnam Harbour INDIA (Record: 1984-1986)
• Tamil Nadu, Vedaranyam (Lat: 10.27) (Long: 79.39) INDIA (Record: 10/2007-03/2010)
• Tamil Nadu, Vedaranyam (Lat: 10.82) (Long: 79.88) INDIA (Record: 10/2007-03/2010)

Literature Source(s)
  • Redekar, PD and Wagh, AB (2000) Planktonic diatoms of the Zuari estuary, Goa (West coast of India) Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu 22 (1 & 2) 107-112 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Hasle, GR and Syvertsen, EE (1997) Marine diatoms Identifying marine phytoplankton Academic Press, San Diego, USA 5-385 Available at - NIO, Goa
  • Plankton*Net Data Provider at the Alfred Wegener Insitute for Polar and Marine Research Available at - http://dx.doi.org/10013/de.awi.planktonnet
  • Chandrasekaran, VS (2000) Relationship between plankton and finfish and shellfish juveniles in Pichavaram mangrove waterways, south east coast of India Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu 22 (1 & 2) 199-207 Available at - NIO, Goa
  • 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
  • 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
  • Devassy, VP; and Goes, JI (1988) Phytoplankton Community Structure and Succession in a Tropical Estuarine Complex (Central West Coast of India) Estuarine, Coastal and Shelf Science Academic Press 27(6) 671-685 Available at - http://dx.doi.org/10.1016/0272-7714(88)90074-1
  • 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
  • Perumal, NV; Rajkumar, M; Perumal, P and Rajasekar, KT (2009) Seasonal variations of plankton diversity in the Kaduviyar estuary, Nagapattinam, southeast coast of India Journal of Environmental Biology Academy of Environmental Biology 30(6) 1035-1046 Available at - www.jeb.co.in/journal_issues/200911_nov09/paper_19.pdf
  • Subrahmanyan, R and Sarma, AHV (1960) Studies on the phytoplankton of the west coast of India Part III. Seasonal variation of the phytoplankters and environmental factors Indian Journal of Fisheries Indian Journal of fisheries for the Indian council of Agricultural research, Cochin, India 7 (2) 307-336 Available at - http://eprints.cmfri.org.in/1899/1/Article_04.pdf
  • Rajasekar, KT; Rajkumar, M; Jun, SUN; Prabu, VA and Perumal, P (2010) Bloom Forming Species of Phytoplankton in Two Coastal Waters in the Southeast Coast of India Journal of Ocean University of China 9(3) 265-272 Available at - http://www.springerlink.com/content/t286n7u33j37u06w/fulltext.pdf
  • Anantharaman, P; Thirumaran, G; Arumugam, R; Kannan, RR; Hemalatha, A; Kannathasan, A; Sampathkumar, P and Balasubramanian, T (2010) Monitoring of Noctiluca bloom in Mandapam and Keelakarai coastal waters, southeast coast of India Recent Research in Science and Technology 2(10) 51-58 Available at - http://recent-science.com/article/viewFile/4386/2174
  • Rajkumar, M; Perumal, P; Prabu, VA; Perumal, NV and Rajasekar, KT (2009) Phytoplankton diversity in Pichavaram mangrove waters from south-east coast of India Journal of Environmental Biology Triveni Enterprises 30(4) 489-498 Available at - http://www.jeb.co.in/journal_issues/200907_jul09/paper_04.pdf
  • Gouda, R and Panigrahy, RC (1989) Diurnal variation of phytoplankton in Rushikulya estuary, east coast of India Indian Journal of Marine Sciences Scientific Publishers 18(4) 246-250 Available at - NIO, Goa
  • Subrahmanyam, MNV and Bhavanarayana, PV (1989) Distribution and abundance of phytoplankton in Visakhapatnam harbour Indian Journal of Marine Sciences Scientific Publishers 18(4) 251-258 Available at - NIO, Goa
  • Manikannan, R; Asokan, S and Ali, AHMS (2011) Studies on species composition of plankton in the great Vedaranyam swamp of the Point Calimere wildlife sanctuary, Tamil Nadu, India World Journal of Fish and Marine Sciences IDOSI 3(4) 283-289 Available at - http://www.idosi.org/wjfms/wjfms3(4)11/4.pdf

Page last updated on:2011-07-19

Back to Search