Thalassiosira gravida   P.T. Cleve,  1896 ()
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Bacillariophyceae
Order:Thalassiosirales
Family:Thalassiosiraceae

Image copyrights: Smithsonian Environmental Research Center

Description
Size: Diameter 17-62 μm.

Color: Yellow brown.

Girdle view: Cells rectangular; valve face flat; mantle low and slightly sloping. Connecting thread thick, especially close to valve surface.
Valve view: Hexagonal areolae in radial rows. Numerous central strutted processes and scattered strutted processes on valve face and mantle; one large marginal labiate process.

Reproduction is general for group: both sexual and asexual.


Synonym (s)
Coscinodiscus gravidus (P.T. Cleve) Cleve-Euler, 1951
(Basionym)
Thalassiosira tcherniai Manguin, 1957

Common Name (s)
Economic Importance and Threats

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

Biogeography


• Orissa, Mahanadi Estuary (Lat: 20.28) (Long: 86.70) INDIA (Record: 2005, 2006)
• Bay of Bengal INDIA (Record: 06/07/2001-02/08/2001)
• Maharashtra, Mumbai (Lat: 18.9) (Long: 72.66) INDIA (Record: 11/2001-10/2002)

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
  • (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
  • Smithsonian Environmental Research Center Available at - http://www.serc.si.edu
  • Paul, JT; Ramaiah, N; Gauns, M and Fernandes, V (2007) Preponderance of a few diatom species among the highly diverse microphytoplankton assemblages in the Bay of Bengal. Marine Biology springerlink 152(1) 63-75 Available at - http://drs.nio.org/drs/bitstream/2264/637/4/Mar_Biol_152_63.pdf
  • D’Costa, PM and Anil, AC (2010) Diatom community dynamics in a tropical, monsoon-influenced environment: West coast of India Continental Shelf Research Elsevier B.V. 30(12) 1324-1337 Available at - http://dx.doi.org/10.1016/j.csr.2010.04.015

Page last updated on:2012-03-13

Back to Search