Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Imprimir: 1521-9429
ISSN On-line: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v22.i1.40
pages 47-54

New Species of Green Algae Belonging to Ulva L. in the Coastal Waters of Karachi, Pakistan

H. Khan
Marine Reference Collection and Resource Center, University of Karachi, Karachi 75270, Pakistan
K. Aisha
Department of Botany, University of Karachi, Karachi-75270, Pakistan


Arabian Sea near Karachi. Ulva ohnoi Hiraoka and Shimada was added in previous list of the genus Ulva. Growth of this species was found on debris (dumbed fishing nets, clothes, sand bores and ropes) at the coasts of Buleji and Abdul Rehman Goth. Morphological characters, observed visually, whereas cellular characters examined under upright microscope which revealed that this species varied from other Ulva species for its dissorted fronds character when thallus is touched, kidney (blunt) shaped chloroplast structure, the presence of marginal spines and absence of matrix in between rhizoidal cell of lower part of the thallus near the holdfast. The comparative study of U. ohnoi reported from Pakistan was done with U. ohnoi, reported species from Iran and Japan. The similarities and dissimilarties of U. ohnoi with U. anandii Amjad and Shameel and U. bifrons Ardre were mentioned, which also have small thallus like describe specimens. If the species is native or exotic are still unknown. Further study is required in terms of ecology and physiology of this species. This was first report from the coast of Karachi, Pakistan.


  1. Amjad M.T. and Shameel M., Two new species and two new records of Ulva L. (Ulvophyceae) from the coast of Karachi, Pakistan. Pak. J. Mar. Sci. 2(1): 5-16, 1993.

  2. Anand P.L., Marine algae from Karachi. Pt I. Chlorophyceae. Lahore: Punjab Univ. Bot. Publ. 52 p., 1940.

  3. Ardre F., Une Ulve a thalle remarquable des Cotes du Portugal. Rev. Algol. N.S. 8: 292-297, 1967.

  4. Beergesen F., Some marine algae from the northern part of the Arabian Sea with remarks on their geographic distribution. Det. Kgl. Danske Videnskab. Selskab., Biol. Meddel. 11(6): 1-72, 1934.

  5. Beergesen F., List of marine algae from Bombay. Det. Kgl. Danske Videnskab. Selskab., Biol. Meddel. 12(2): 1-64, 1935.

  6. Flagella M.M., Andreakis N., Hiraoka M., Verlaque M., and Buia M.C., Identification of cryptic Ulva species (Chlorophyta, Ulvales) transported by ballast water. J. Biol. Res. 13: 47-57, 2010.

  7. Hiraoka M., Shimada S., Uenosono M., and Masuda M., A new green tide forming algae Ulva ohnoi Hikora et Shimada sp. nov. (Ulvales, Ulvaceae) from Japan. Phycol. Res. 51: 17-29, 2003.

  8. Kazi A.M., Kayale G.M., and Singh V.V., Morphological and molecular characterization of Ulva chaugulii sp. nov., U. lactuca and U. ohnoi (Ulvophyceae, Chlorophyta) from India. Phycologia. 55(1): 45-54, 2016.

  9. Lawton R.J., Mata L., de Nys, R., and Paul N.A., Algal bioremediation of waste waters from land-based aquaculture using Ulva: selecting target species and strains. PLoS One. 8(10): e77344, 2013.

  10. Linnaeus C., In: Speciesplantarum. vol. 2. Stockholm: Laurentius Salvius Holmiae. pp. 561-1200, 1753.

  11. Martins I., Oliviria J.M., Findt M.R., and Marques J.C., The effect of salinity on the growth rate of the macroalgae Enteromorpha intestinalis (Chlorophyta) in the Mondego estuary (west Portugal). Acta Oecol. 20: 259-265, 1999.

  12. Mc Avoy K.M. and Klung L., Positive and negative effects of riverine input on the estuarine green algae Ulva intestinalis (syn. Enteromorpha intestinalis) Linnaeus. Hydrobiologia. 545: 1-9, 2005.

  13. Melton III J.T., Collado-Vides L., and Lopez-Bautista J.M., Molecular identification and nutrient analysis of the green tide species Ulva ohnoi (Ulvophyceae, Chlorophyta), a new report and likely nonnative species in the Gulf of Mexico and Atlantic Florida, USA. Aquat. Invas. 11(3): 225-237, 2016.

  14. Miladi R., Manghisi A., Minicante S.A., Genovese G., Abdelkafi S., and Morabito M., A DNA barcoding survey of Ulva (Chlorophyta) in Tunisia and Italy reveals the presence of the overlooked alien U. ohnoi. Cryptogam. Algol. 39(1): 85-108, 2018.

  15. Pirian K., Piri K., Sohrabipour J., Jahromi S.T., Blomster J., Molecular and morphological characterization of Ulva chaugulii, U. paschima and U. ohnoi (Ulvaceae) from the Persian Gulf, Iran. Bot. Mar. 59(2): 147-158, 2016.

  16. Reed R.H. and Russell G., Adaptation to salinity stress in populations of Enteromorpha intestinalis (L.) Link. Estuar. and Coastal Mar. Sci. 8(3): 251-258, 1979.

  17. Saifullah S.M. and Nizamuddin M., Studies of the marine algae from Pakistan: Ulvales. Bot. Mar. 20(8): 521-536, 1977.

  18. Saifullah S.M. and Rasool F., Standing crop of macroalgae in mangrove habitat of Sandspit area, Karachi. Pak. J. Mar. Sci. 7(1): 61-64, 1998.

  19. Shimada S., Tadano T., and Tanaka J., A new species Codium tenufolium (Codiales, Chlorophyta) from Japan. J. Jap. Bot. 82: 117-125, 2007.

  20. Shimada S., Yokoyama N., Arai S., and Hiraoka M., Phylogeography of genus Ulva (Ulvophyceae, Chlorophyta), with special reference to the Japanese fresh water and brackish water taxa. J. Appl. Phycol. 20: 979-989, 2008.

  21. Van den Hoek C., Mann D.G., and Jahns H.M., Algae. An introduction to phycology. Cambridge: Cambridge Univ. Press. 623 p., 1995.

  22. Wichard T., Charrier B., Mineur F., Bothwell J.H., De Clerk O., and Coates J.C., Front. Plant Sci. 6(72): 1-8, 2015.

Articles with similar content:

Radiocesium Contamination of Wild-Growing Medicinal Mushrooms in Ukraine
International Journal of Medicinal Mushrooms, Vol.5, 2003, issue 1
Michael Berreck, Kurt Haselwandter
Bacillariophyceae Flora inWater Bodies along the Tauyskaya Guba Coast of the Okhotsk Sea (Russia)
International Journal on Algae, Vol.13, 2011, issue 3
V. G. Kharitonov
Occurrence of the Order Chordarales (Laminrophyceae, Phaeophycota) in the Coastal Waters of Karachi
International Journal on Algae, Vol.16, 2014, issue 2
M. Shameel, K. Aisha
Cyanoprokaryota of the Polisarka, Pana, Varzuga Rivers District (Murmansk Region, Russia)
International Journal on Algae, Vol.18, 2016, issue 4
Denis A. Davydov
Structure, Growth and Reproduction of Red Alga, Hypnea pannosa, from the Karachi Coast of Pakistan
International Journal on Algae, Vol.14, 2012, issue 4
M. Shameel, A. Zarina, S. Afaq-Husain