Chaetoceros lorenzianus   Grunow,  1863 (Diatom)
Organism information awaits expert curation
Taxonomy
Kingdom:Chromista
Phylum:Ochrophyta
Class: Bacillariophyceae
Order:Chaetocerotanae incertae sedis
Family:Chaetocerotaceae

Image copyrights: BioD508 Univ. Tsukuba

Description
Size: Apical axis 7-80 µm.

Color: Yellow brown.

Chains straight and stiff. Apertures elliptical to oval. Sibling setae fused only at the point of exit from margin; setae with distinct transverse rows of pores. Terminal setae divergent in broad girdle view for their whole length. Primary valve of resting spores with two conical protuberances which branch repeatedly and dichotomously at the tips; secondary valve smooth.

Reproduction is general for group: both sexual and asexual.


Synonym (s)
Chaetoceros cellulosus Launder, 1864
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

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

Biogeography


• West Bengal, Prentice Island INDIA
• West Bengal, Chandanpiri INDIA
• Orissa, Bhubaneswar INDIA
• West Bengal, Saptamukhi River INDIA
• Tamil Nadu, Vellar Estuary (Lat: 11.48) (Long: 79.77) INDIA
• Andhra Pradesh, Fishing Harbour (Lat: 21.21) (Long: 70.14) INDIA
• Goa, Mandovi and Zuari Estuary INDIA (Record: 11/1979 - 10/1980)
• Tamil Nadu, Pichavaram Mangrove INDIA (Record: 04/1980-03/1982)
• Orissa, Mahanadi Estuary (Lat: 20.28) (Long: 86.70) INDIA (Record: 2004-2007)
• Karnataka, Netravati Estuary INDIA (Record: 02/1993-05/1994)
• Tamil Nadu, Off Tuticorin (Lat: 8.71) (Long: 78.2) INDIA (Record: 1987-1989)
• Bay of Bengal INDIA (Record: 06/07/2001-02/08/2001)
• Kerala, Kochi Backwaters INDIA (Record: 1970-1972)
• Karnataka, Old Port of Mangalore (Lat: 12.86) (Long: 74.88) INDIA (Record: 28/12/2005 - 13/01/2006)
• Tamil Nadu, Pichavaram Mangroves (Lat: 11.48) (Long: 79.76) INDIA (Record: 01/1985-12/1985)
• Kerala, Azheekode INDIA
• Kerala, Kodikkal INDIA
• West Coast INDIA
• Tamil Nadu, Parangipettai INDIA
• Tamil Nadu, Mandapam INDIA (Record: 07/2008-12/2008)
• Tamil Nadu, Keelakarai INDIA (Record: 07/2008-12/2008)
• Goa, Dona Paula Bay (Lat: 15.45) (Long: 73.8) INDIA
• Tamil Nadu, Pichavaram INDIA
• Palk Bay INDIA (Record: 05/1951-06/1953)
• Tamil Nadu, Gulf of Mannar INDIA (Record: 01/1950-06/1953)
• Kerala, Alleppey, Ambalapuzha Coast INDIA (Record: 1971-1972)
• Karnataka INDIA (Record: 2005-2006)
• Andhra Pradesh, Visakhapatnam INDIA
• 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)
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Page last updated on:2012-03-12

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