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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Sep 2015, 36 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Forest structure and litter production of naturally re-generated white mangrove Avicennia marina in sub-tropical estuarine coast

 

M.K. Abu Hena1*, B. Japar Sidik1, M.H. Idris1, M.H. Nesarul2, A. Aysha2, M.S. Islam2 and H. Nazmul2

1Department of Animal Science and Fishery, Faculty of Agriculture and Food Sciences, Universiti Putra Malaysia,

?Bintulu Sarawak Campus, 97008 Bintulu, Sarawak, Malaysia

2Institute of Marine Sciences and Fisheries, University of Chittagong, Chittagong-4331, Bangladesh

*Corresponding Author?s E-mail: hena71@yahoo.com

 

 

 

Publication Data

Paper received:

10 February 2014

 

Revised received:

16 September 2014

 

Accepted:

17 November 2014

 

Abstract

The present work deals with plant structure, phenology, litter production and decomposition of mangrove Avicennia marina in the newly re-generated mangrove forest in sub-tropical coast. The natural generation in this accreted coastal land of mono-specific A. marina forest stand was prominent, with 45% seedlings and 32% saplings. Peak flowering and fruiting were noticed in May and August, respectively. Reproductive components contribute countable percent into the total litter production during the peak flowering (60%) and fruiting (86%) season. The percentage of leaf litter fall fluctuated throughout the year and contributed 13-99% (73% in average) of the total litter production of 11.53 tones ha-1yr-1. The total litter production differed with season and influenced by local climate, pore water salinity and phenology of the mangrove. The naturally generated young (7 years) A. marina with 1.8 m height produced more leaf litter as compared to similar tree height elsewhere. Decomposition rate was related to season, with higher litter loss during rainy season which could help cycling nutrients and support estuarine food web by supplying organic matter into the sub-tropical coastal environment. ?   

 

 

 Key words

Avicennia marina, Mangrove litter, Newly re-generated forest

 

 

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