Dictyota pinnatifida   Kutzing,  1859 (Algae)
Organism information awaits expert curation
Class: Phaeophyceae

Size: 10-18 cm.

Color: Light brown

Thallus form and type: Frondose and ribbon type

Substratum: Intertidal rocks, coralline stones

Occurrence: Lower mid littoral zone

Season: November-April

Plants large, with basal portion forming a cuneate disc. Upper portion repeatedly branched regularly, dichotomously to alternately; branches flat, more or less maintaining the same breadth from base to apex, being about 2-3.5 mm broad, distantly separated, margins entire, apices round. Thallus internally composed of a middle layer enveloped by superficial layer on either sides.

Reproductive bodies occurring all over the surface of the thallus.

Synonym (s)
Dilophus alternans J. Agardh, 1882
(Heterotypic synonym)
Bicrista alternans (J. Agardh) Kuntze, 1898
(Heterotypic synonym)
Dictyota alternans (J. Agardh) Hornig, Schnetter & Prud'Homme van Reine, 1993
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Maharashtra INDIA
• Maharashtra, Mumbai INDIA
• Gujarat, Shivrajpur INDIA
• Gujarat, Okha INDIA
• Gujarat, Kotda INDIA

Literature Source(s)
  • 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
  • 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
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae 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
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Krishnamurthy, V (2006) Key to the taxonomic identification of green and brown marine algae of India Recent advances on applied aspects of Indian marine algae with reference to global scenario. Seaweed taxonomic identification, aquaculture, resource, environment, fouling and disease Central Salt and Marine Chemicals Research Institute, Bhavnagar 1 1-146 Available at - NIO, Goa
  • The barcode of life data systems Biodiversity Institute of Ontario Available at - http://www.barcodinglife.org/index.php
  • Jha B, Reddy C.R.K, Thakur M C and Rao M (2009) Seaweeds of India The Diversity and Distribution of seaweeds of Gujarat Coast Springer 211pp Available at - NIO

Page last updated on:2012-11-30

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