Chaetoceros compressus   Lauder,  1864 (Diatom)
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Bacillariophyceae
Order:Chaetocerotanae incertae sedis
Family:Chaetocerotaceae

Image copyrights: Plankton net

Description
Size: Apical axis 7-40 ┬Ám.

Color: Yellow brown.

Cells are cylindrical with a broadly elliptical to circular cross-section forming long straight chains which are more or less twisted about the chain axis. Valves are flat or slightly convex in the centre and have a low mantle. Two types of intercalary setae are present. The ordinary intercalary setae are regularly arranged along the chain are very delicate and therefore sometimes difficult to sea with a normal light microscope. In addition, heavily silicified intercalary setae can occur occasionally. They are very long, curved and strongly directed towards the nearest end of the chain. Distally they become almost parallel to the chain axis. Setae originate within the valve margin, have a short basal part and fuse at the chain edge. They are fused only at the point of crossing. The elliptical to hexagonal apertures are moderately wide and slightly constricted in the centre. Cells contain numerous small plate-like chloroplasts. Resting spores smooth, primary valve highly vaulted and secondary valve slightly vaulted.
It is a phytosynthetic species.

Reproduction is general for group: both sexual and asexual.


Synonym (s)
Chaetoceros contortus Schutt, 1895
(Heterotypic synonym)
Chaetoceros contortum Schutt, 1895

Common Name (s)
Economic Importance and Threats

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

Biogeography


• Orissa, Chilika Lake (Lat: 19.77) (Long: 85.33) INDIA
• Tamil Nadu, Pichavaram Mangrove INDIA (Record: 04/1980-03/1982)
• Andaman and Nicobar Islands, Mahatma Gandhi Marine National Park INDIA (Record: 12/2004-07/2005)
• Tamil Nadu, Off Tuticorin (Lat: 8.71) (Long: 78.2) INDIA (Record: 1987-1989)
• Karnataka, Old Port of Mangalore (Lat: 12.86) (Long: 74.88) INDIA (Record: 28/12/2005-13/01/2006)
• Kerala, Mandapam INDIA
• Tamil Nadu, Keelakarai INDIA (Record: 07/2008-12/2008)
• Tamil Nadu, Gulf of Mannar INDIA (Record: 01/1950-06/1953)
• Palk Bay INDIA (Record: 05/1951-06/1953)
• Orissa, Rushikulya Estuary (Lat: 19.37) (Long: 85.05) INDIA (Record: 11/01/1989-12/01/1989)
• East Coast (Lat: 10) (Long: 79) INDIA (Record: 01/1999-08/2002)
• East Coast (Lat: 21) (Long: 94) INDIA (Record: 01/1999-08/2002)

Literature Source(s)
  • Desikachary, TV First list of diatoms of the Indian Ocean region University Botany Laboratory, Madras 600 005 1-139 Available at - NCL, Pune
  • Abbaasi, SA (1997) Wetlands of India-Ecology and Threats Discovery Publishing House,New Delhi II 1-182 Available at - NIO, RC Kochi
  • Madhav, GV and Kondalarao, B (2004) Distribution of phytoplankton in the coastal waters of east coast of India Indian Journal of Marine Sciences CSIR, New Delhi 33(3) 262-268 Available at - http://nopr.niscair.res.in/bitstream/123456789/1678/1/IJMS%2033%283%29%20262-268.pdf
  • 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/
  • 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
  • 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
  • Palanisamy, M (2007) Diatom flora in the Mahatma Gandhi Marine National Park, South Andaman Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu, India 29(1 & 2) 145-149 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
  • Harnstrom, k; Karunasagar, I and Godhe, A (2009) Phytoplankton species assemblages and their relationship to hydrographic factors-a study at the old port in Mangalore, coastal Arabian sea Indian journal of marine sciences NISCAIR 38(2) 224-234 Available at - http://nopr.niscair.res.in/handle/123456789/4673
  • 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
  • Prasad, RR and Nair, PVR (1960) Observations on the distribution and occurrence of diatoms in the inshore waters of the Gulf of Mannar and Palk Bay Indian Journal of Fisheries Indian Council of Agricultural Research 7 (1) 49-68 Available at - http://eprints.cmfri.org.in/1890/1/Article_05.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

Page last updated on:2012-03-09

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