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

Image copyrights: Mats Kuylenstierna & Bengt Karlson.

Description
Size: Apical axis 7-30 ┬Ám.

Color: Yellow brown.

Chains straight. Poles of adjacent cells touch. Apertures narrow. Inner setae thin and without basal part. Terminal setae large, strongly divergent, and different from the inner setae. Resting spores with more or less vaulted valves; secondary valve often higher and bulging in the middle. Both valves with small spines; secondary valve with some longer and stouter spines.
It is a phytosynthetic species.

Reproduction is general for group: both sexual and asexual.


Synonym (s)
Chaetoceros affinis var. willei (Gran) Hustedt, 1930
Chaetoceros angularis Schutt, 1895
Chaetoceros javanicus Cleve, 1873
Chaetoceros procerum Schutt, 1895
Chaetoceros ralfsii Cleve, 1873
Chaetoceros schuttii P.T. Cleve in Gran, 1894
Chaetoceros willei Gran, 1897

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
• Orissa, Gopalpur (Lat: 19.1) (Long: 84.93) INDIA (Record: 02/2004-01/2005)
• Tamil Nadu, Pichavaram Mangrove INDIA (Record: 04/1980-03/1982)
• Kerala, Kadinamkulam Backwater INDIA (Record: 10/1991-09/1992)
• 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)
• 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, Vaadi INDIA
• Kerala, Punnapra INDIA
• Kerala, Azheekode INDIA
• Kerala, Balathuruthu INDIA
• Kerala, Kodikkal INDIA
• Tamil Nadu, Kaduviyar estuary INDIA (Record: 10/2005-09/2006)
• West Coast INDIA
• Tamil Nadu, Parangipettai INDIA
• Tamil Nadu, Mandapam INDIA (Record: 07/2008-12/2008)
• 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)
• 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)
• 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)

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Page last updated on:2012-03-09

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