Ceramium diaphanum   (Lightfoot) Roth,  1806 (Algae)
Organism information awaits expert curation
Class: Florideophyceae

Image copyrights: Vivian Husa

Size: Cell length 30-50 µm, breadth 20-60 µm

Color: Red

Red color results from the dominance of the pigments phycoerythrin and phycocyanin; this masks the other pigments, chlorophyll a (no chlorophyll b), beta-caratene and a number of unique xanthophylls.

Thallus form floating reddish patches in the water column, bristly or hair like, regularly dichotomously branched, branches gradually attenuated, branches rather sparse, the terminal pairs forceps shaped, cells towards the lower parts older, primary branches 2-5 times longer than diameter, upper cells are equal or shorter than the diameter, interstices of transverse
zones at the joints somewhat pellucid, lateral wall fibrillose.Vegetative reproduction is rare; asexual reproduction is effected by the formation of various kinds of spores; Sexual reproduction is unique in this group due to their passive, non flagellated sperm cells (spermatia).

Synonym (s)
Conferva diaphana Lightfoot, 1777
Ceramium diaphanum (Lightfoot) Roth, 1806
Ceramium diaphanum var. tenuissimum Roth, 1806
Ceramium tenuissimum (Roth) Areschoug, 1847
Hormoceras nodosum Kutzing, 1842
Ceramium nodosum (Kutzing) Griffiths & Harvey in Harvey, 1847
Gongroceras nodiferum Kutzing, 1849
Ceramium diaphanum f. medium Sjostedt, 1928
Ceramium diaphanum f. modificatum Petersen, 1908
Ceramium diaphanum f. zostericolum Petersen, 1908
Ceramium gracillimum (Kutzing) Zanardini, 1847
Hormoceras gracillimum Kutzing, 1842

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine, Sandy, Coastal


• Lakshadweep (Lat: 11) (Long: 72.5) INDIA
• Orissa, Chilika Lake (Lat: 19.77) (Long: 85.33) INDIA
• Lakshadweep INDIA
• Orissa, Palur Channel (Lat: 19.46) (Long: 85.13) INDIA (Record: 31/12/2004)
• Orissa, Chilika lake (Lat: 19.64) (Long: 85.42) INDIA (Record: 12/12/2004, 23/02/2005)
• Orissa, Kushabhadra River Mouth (Lat: 19.81) (Long: 85.90) INDIA (Record: 16/01/2005)
• Orissa, Paradeep-on-sea (Lat: 20.29) (Long: 86.71) INDIA (Record: 24/12/2004)
• Lakshadweep, Bitra INDIA

Literature Source(s)
  • Nasr, AH (1940) The chorography of the marine algae inhabiting the northern part of the Red Sea coast 13-155 Available at - NIO, RC, Kochi
  • Stegenga, H and Bolton, JJ (1992) Ceramiaceae (Rhodophyta) of the Cape province, South Africa: Distribution in relation to concepts of marine provinces Botanica Marina 35 99-107 Available at - NCL, Pune
  • Schils, T; Coppejans, E; Verbruggen, H; Clerck, OD and Leliaert, F (2004) The marine flora of Rodrigues (Republic of Mauritius, Indian Ocean): An island with low habitat diversity or one in the process of colonisation? Journal of Natural History Taylor and Francis 38 3059-3076
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Saad, MAH (1984) Proceedings of the Symposium on Coral Reef environment of the Red Sea King Abdulaziz University, Saudi Arabia 1-681 Available at - NIO, RC Kochi
  • Phang, SM (2006) Seaweed resources in Malaysia: Current status and future prospects 9(2) 185-202 Available at - NCL, Pune
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae 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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Norwegian Seaweeds Available at - http://seaweeds.uib.no/
  • Rath, J and Adhikary, SP (2006) Marine Macro-algae of Orissa, East coast of India Algae The Korean Society of Phycology 21(1) 49-59 Available at - http://www.e-algae.kr/Upload/files/ALGAE/2006-01-04.pdf
  • Kaliaperumal, N; Kaladharan, P and Kalimuthu, S (1989) Seaweed and seagrass resources Marine living resources of the union territory of Lakshadweep: An indicative survey with suggestions for development Bulletin of Central Marine Research Institute CMFRI 43 162-176 Available at - http://eprints.cmfri.org.in/8213/1/Bulletin_No_43.pdf

Page last updated on:2011-04-28

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