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Taxonomic Assessment of Zygnemataceae Bangladesh Perspective

Md. Solaiman Ali
Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh

Sabrina Naz
Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh

Abstract/ Executive Summary:

Record from National and International literature from 1966 to 2006, six genera of Zygnemataceae recorded from different districts of Bangladesh. Among these, Mougeotia Agardh are represented 23 taxa, Sirogonium Kützing four taxa, Spirogyra Link 66 taxa, Sirocladium Randhawa, Temnogametum W. & G.S. West solitary taxa each and Zygnema Agardh 12 taxa. Maximum diversity of the taxa was observed in central part of Bangladesh. About 80% habitats were lentic type, while the others are of lotic type. In Bangladesh all the taxa of Zygnemataceae are reported to be found in freshwater habitats and found all the season specially in winter period. Distribution pattern and habitats of Zygnemataceae reveal that they are capable of growing in diversified habitat including varying degrees of alkalinity, acidity (pH = 6-7.5).

Keywords: Zygnemataceae, Distribution, Diversity, Bangladesh

Location: Dhaka district

Start Date:

End Date:

Program Area: Conservation and Biodiversity

Commodity: Plant

Objectives:

To review the diversity, status and habitat of the Zygnemataceae in Bangladesh from existing data source (published and unpublished).

Methodology:

The study was conducted mostly on the genera of Zygnemataceae of Bangladesh so far published with unpublished literatures. A detail taxonomic and ecological along with distribution study of the family Zygnemataceae was conducted by different researcher mostly from Dhaka district of Bangladesh.

Source of Information: Journal of Biodiversity and Environmental Sciences, Vol. 1(6): 165-173, 2011, ISSN 2220-6663

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present review (1966 – 2006) on Zygnemataceae distribution reveals that till now they have been so far reported from 12 districts of Bangladesh. Recently, in a compilation of Encyclopedia of Flora and Fauna of Bangladesh were 2008 listed 85 taxa of Zygnemataceae from Bangladesh (based only on published literature) although the search missed few works. The literatures related to Zygnemataceae focus that much of the area yet to be explored for algal study in Bangladesh. The members of Zygnemataceae thrive well in diversified habitat of Bangladesh and a lacuna also exists for studying brackish water Zygnemataceae of Bangladesh. Bangladesh with its rich aquatic resources along with a population density of 953 / Km² are constantly facing anthropogenic pressure seeking the global attention. Hence the documentation of algal diversity is an important part of biodiversity. The studies of biodiversity are thus assuming greater significance as ecologists try desperately to document global biodiversity in the face of unprecedented perturbations, habitat loss and extinction rates.

Knowledge Management: Journal