Lyngbya aestuarii   (Mertens) Liebman ex Gomont,  1892 (Cyanobacteria formerly Blue Green Algae)
Organism information awaits expert curation
Class: Cyanophyceae

Image copyrights: M. Martínez-Alonso, N. Gaju

Size: Filaments 18-20 μm broad; trichome 8-12 μm broad; cells 9-11 μm broad, 2-5.6 μm long.

Color: Thallus brownish green.

Plant mass widely expanded forming at first matted layers on the substratum, later on floating in large woolly masses. Filaments long, flexuous forming entangled masses, rather tenacious, densely crowded, sheath 1-2 μm in thickness, at first hyaline, smooth, firm, thin, finally becoming thick, lamellose, with somewhat roughened surface. Trichome not constricted at cross walls; apex hardly tapering, rarely slightly capitate; apical cell obtusely rounded, sometimes with slightly thickened outer membrane. Cell contents granular, blue-green.

These filamentous non-heterocystous cyanobacteria divide in only one plane. Reproduce by transcellular trichome breakage.

Produces toxins: aplysiatoxins, lyngbiatoxin-a, Lipopolysaccharides (LPS's).

Synonym (s)
Conferva aestuarii Mertens in Jurgens, 1816
Lyngbya aestuarii (Mertens) Liebman, 1839

Common Name (s)
Economic Importance and Threats

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


• Tamil Nadu, Pichavaram, Periakadavu INDIA (Record: 04/2000-03/2001)
• West Bengal, Baduria INDIA (Record: 23/01/2004)
• Maharashtra, Nalasopara Saltpans INDIA (Record: 10/2002-12/2002)
• Kerala, Balathuruthu INDIA
• Westcoast INDIA

Literature Source(s)
  • Nedumaran, T; Thillairajasekar, K and Perumal, P (2008) Mangrove associated cyanobacteria at Pichavaram, Tamilnadu Proceedings of the national symposium on marine and coastal ecosystems 27-29, August 2007 Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Marine Fisheries- 623 520, Tamilnadu, India 30 77-85 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Martínez-Alonso, M and Gaju, N (2005) The role of microbial mats in the littoral zone biorrecuperación subjected to pollution from oil spills Ecosistemas 14(2) Available at -
  • Naskar, N; Naskar, KR and Sen, CR (2008) Brackish water Oscillatoriaceae from north 24-Parganas, West Bengal, India Bangladesh Journal of Plant Taxonomy Bangladesh Association of Plant Taxonomists 15(1) 31-38 Available at -
  • Velankar, DA and Chaugule, BB (2007) Algae of the saltpans of Nalasopara, Mumbai Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu, India 29(1 & 2) 273-278 Available at - NIO, Goa
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • Biswas, K (1948) Common fresh & brackish water algal flora of India & Burma Records of the Botanical Survey of India Periodical Expert Book Agency, Delhi, India 15(1) 125 pp Available at - NIO, Goa
  • 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 -
  • 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 -
  • Humm, HJ and Wicks, SR (1980) Introduction and guide to the Marine bluegreen algae A Wiley-Interscience Publication, John Wiley and Sons 194 pp Available at - NIO, Goa

Page last updated on:2011-03-10

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