ISSN (print) 0868-8540, (online) 2413-5984
  • 5 of 8
Algologia 2020, 30(1): 52–61
New Taxa and Noteworthy Records

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

Khan H.1, Aisha K.2

The study was carried out to access the taxonomy of new species of Ulva. For this purpose, the collections of green algae were done from September 2018 to March 2019 on the coast of the Arabian Sea near Karachi. Ulva ohnoi Hiraoka et 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 et Shameel and U. bifrons Ardré 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.

Keywords: Ulva ohnoi, coast of Karachi, morphology, ecology

Full text: PDF (Rus) 1.85M

  1. Amjad M.T., Shameel M. 1993. 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.
  2. Anand P.L. 1940. Marine algae from Karachi. Pt I. Chlorophyceae. Lahore: Punjab Univ. Bot. Publ. 52 p.
  3. Ardre F. 1967. Une Ulve a thalle remarquable des Cotes du Portugal. Rev. Algol. N.S. 8: 292–297.
  4. Bøergesen F. 1934. 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.
  5. Bøergesen F. 1935. List of marine algae from Bombay. Det. Kgl. Danske Videnskab. Selskab., Biol. Meddel. 12(2): 1–64.
  6. Flagella M.M., Andreakis N., Hiraoka M., Verlaque M., Buia M.C. 2010. Identification of cryptic Ulva species (Chlorophyta, Ulvales) transported by ballast water. J. Biol. Res. 13: 47–57.
  7. Hiraoka M., Shimada S., Uenosono M., Masuda M. 2004. A new green tide forming algae Ulva ohnoi Hikora et Shimada sp. nov. (Ulvales, Ulvaceae) from Japan. Phycol. Res. 52: 17–29
  8. Kazi A.M., Kayale G.M., Singh V.V. 2016. Morphological and molecular characterization of Ulva chaugulii sp. nov., U. lactuca and U. ohnoi (Ulvophyceae, Chlorophyta) from India. Phycologia. 55(1): 45–54.
  9. Lawton R.J., Mata L., de Nys R., Paul N.A. 2013. Algal bioremediation of waste waters from land-based aquaculture using Ulva: selecting target species and strains. PLoS One. 8(10): e77344.
  10. Linnaeus C. 1753. In: Species plantarum. Vol. 2. Stockholm: Laurentius Salvius Holmiae. Pp. 561-1200.
  11. Martins I., Oliviria J.M., Findt M.R., Marques J.C. 1999. 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.
  12. Mc Avoy K. M., Klung L. 2005. Positive and negative effects of riverine input on the estuarine green algae Ulva intestinalis (syn. Enteromorpha intestinalis) Linnaeus. Hydrobiologia. 545: 1–9.
  13. Melton III J.T., Collado-Vides L., Lopez-Bautista J.M. 2016. Molecular identification and nutrient analysis of the green tide species Ulva ohnoi (Ulvaphyceae, Chlorophyta), a new report and likely nonnative species in the Gulf of Mexico and Atlantic Florida, USA. Aquat. Invas. 11(3): 225–237.
  14. Miladi R., Manghisi A., Minicante S.A., Genovese G., Abdelkafi S., Morabito M. 2018. 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.
  15. Pirian K., Piri K., Sohrabipour J., Jahromi S.T., Blomster J. 2016. Molecular and morphological characterization of Ulva chaugulii, U. paschima and U. ohnoi (Ulvaceae) from the Persian Gulf, Iran. Bot. Mar. 59(2): 147–158.
  16. Reed R.H., Russell G. 1979. Adaptation to salinity stress in populations of Enteromorpha intestinalis (L.) Link. Estuar. and Coastal Mar. Sci. 8(3): 251–258.
  17. Saifullah S.M., Nizamuddin M. 1977. Studies of the marine algae from Pakistan: Ulvales. Bot. Mar. 20(8): 521–536.
  18. Saifullah S.M., Rasool F. 1998. Standing crop of macroalgae in mangrove habitat of Sandspit area, Karachi. Pak. J. Mar. Sci. 7(1): 61–64.
  19. Shimada S., Tadano T., Tanaka J. 2007. A new species Codium tenufolium (Codiales, Chlorophyta) from Japan. J. Jap. Bot. 82: 117–125.
  20. Shimada S., Yokoyama N., Arai S., Hiraoka M. 2008. Phylogeography of genus Ulva (Ulvophyceae, Chlorophyta), with special reference to the Japanese fresh water and brackish water taxa. J. Appl. Phycol. 20: 979–989.
  21. Van den Hoek C., Mann D.G., Jahns H.M. 1995. Algae. An introduction to phycology. Cambridge: Cambridge Univ. Press. 623 p.
  22. Wichard T., Charrier B., Mineur F., Bothwell J.H., De Clerk O., Coates J.C. 2015. The green seaweed Ulva: a model system to study morphogenesis. Front. Plant Sci. 6(72): 1–8.