Contact: +91-9711224068
International Journal of Fisheries and Aquatic Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2018, Vol. 6, Issue 3, Part A

Seasonal variation of aquatic weeds at Dekar haor under Sunamganj district, Bangladesh


Author(s): Abu Saleh Md. Arif, Md. Shahab Uddin, Md. Shahidul Islam, Sadia Nusrat, Poly Rani Das and Mithila Biswas

Abstract: A study was conducted to assess the seasonal variation and present status of aquatic weeds diversity in Dekar haor under Sunamganj district for the period of nine months from December 2016 to August 2017. The Shannon-Weiner diversity, Margalef richness and Pielou’s evenness index were 1.32±1.19, 3.16±0.94 and 0.42±0.39, respectively. Values of different indices were high in monsoon. Shannon diversity value was the highest (2.95) in August. Species richness value was mostly similar in winter and summer. Margalef species richness was the highest (4.58) in July and the lowest (2.41) was in March. In the species evenness index, a slight variation was observed among the seasons. The highest value (0.96) of species evenness was found in July while the lowest (0.09) was in April. Diversity indices were lower during summer owing to flash flood that occurred in early April. A total of 35 species of aquatic weeds as 13 floating species, 16 emergent and 6 submerged were recorded from the study area. Nymphaeaceae, Araceae and Hydrocharitaceae were the dominant families which contributed 3 species in each. It was observed that emergent weeds were abundant compared to submerged weeds. It was also found that aquatic weeds have both positive and negative aspects. It reveals from the study that aquatic weeds diversity changes from season to season. This study therefore, provides new baseline information on the diversity of aquatic weeds based on seasonal changes. So it is extremely important to conserve these aquatic weeds for human, aquatic organisms, soil health, productivity and friendly environment of the haor.

Pages: 01-05  |  436 Views  62 Downloads

Download Full Article: Click Here

How to cite this article:
Abu Saleh Md. Arif, Md. Shahab Uddin, Md. Shahidul Islam, Sadia Nusrat, Poly Rani Das and Mithila Biswas. Seasonal variation of aquatic weeds at Dekar haor under Sunamganj district, Bangladesh. International Journal of Fisheries and Aquatic Studies. 2018; 6(3): 01-05.
ADVERTISEMENT
Mosquito Journal
Call for book chapter
International Journal of Fisheries and Aquatic Studies
Journals List Click Here Research Journals Research Journals