Gracilaria sp. in Asajaya mangrove with special reference to its production

This study aimed to record the biomass and identifies the species of Gracilaria that inhabit the Asajaya mangrove area. The Asajaya mangrove has been divided into three stations and Station 3 was further divided into five permanent plots. The samples of Gracilaria sp. were collected monthly from Sep...

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Main Author: Siti Masila, Maslie
Format: Final Year Project Report / IMRAD
Language:English
Published: Universiti Malaysia Sarawak, UNIMAS 2010
Subjects:
Online Access:http://ir.unimas.my/id/eprint/7852/
http://ir.unimas.my/id/eprint/7852/9/Siti%20Masila.pdf
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author Siti Masila, Maslie
author_facet Siti Masila, Maslie
author_sort Siti Masila, Maslie
building UNIMAS Institutional Repository
collection Online Access
description This study aimed to record the biomass and identifies the species of Gracilaria that inhabit the Asajaya mangrove area. The Asajaya mangrove has been divided into three stations and Station 3 was further divided into five permanent plots. The samples of Gracilaria sp. were collected monthly from September to December 2009 at the five permanent plots. Taking the tree of Sonneratia alba as a centre, Gracilaria was collected around the tree with radius of 10 m from the centre. The samples were dried in oven for 48 hours at 60°C and weighed to obtain the dry weight. Gracilaria changii is the species that has been identified in this study. The temperature in Asajaya mangrove ranged from 27°C to 30.2°C. The pH was recorded as alkaline which ranged from 7.54 to 7.66. For salinity, it ranged from 20.3 PSU to 21.9 PSU. Meanwhile dissolved oxygen (DO) ranged from 6.7 mg/L to 9.7 mg/l. The biological oxygen demand in 5 days (BOD5) recorded the lowest value in Station 1 with 7.08 mg/l and the highest in Station 2 with 10.63 mg/l. Biomass (g dry weight/m2) was calculated for each subplot and its ranged from 0.04 to 0.21 g/m2 DW. The agar yield without alkali treatment is 15 ± 0.77% and 17 ± 0.85% for alkali treatment.
first_indexed 2025-11-15T06:20:36Z
format Final Year Project Report / IMRAD
id unimas-7852
institution Universiti Malaysia Sarawak
institution_category Local University
language English
last_indexed 2025-11-15T06:20:36Z
publishDate 2010
publisher Universiti Malaysia Sarawak, UNIMAS
recordtype eprints
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spelling unimas-78522024-02-15T07:32:27Z http://ir.unimas.my/id/eprint/7852/ Gracilaria sp. in Asajaya mangrove with special reference to its production Siti Masila, Maslie GE Environmental Sciences This study aimed to record the biomass and identifies the species of Gracilaria that inhabit the Asajaya mangrove area. The Asajaya mangrove has been divided into three stations and Station 3 was further divided into five permanent plots. The samples of Gracilaria sp. were collected monthly from September to December 2009 at the five permanent plots. Taking the tree of Sonneratia alba as a centre, Gracilaria was collected around the tree with radius of 10 m from the centre. The samples were dried in oven for 48 hours at 60°C and weighed to obtain the dry weight. Gracilaria changii is the species that has been identified in this study. The temperature in Asajaya mangrove ranged from 27°C to 30.2°C. The pH was recorded as alkaline which ranged from 7.54 to 7.66. For salinity, it ranged from 20.3 PSU to 21.9 PSU. Meanwhile dissolved oxygen (DO) ranged from 6.7 mg/L to 9.7 mg/l. The biological oxygen demand in 5 days (BOD5) recorded the lowest value in Station 1 with 7.08 mg/l and the highest in Station 2 with 10.63 mg/l. Biomass (g dry weight/m2) was calculated for each subplot and its ranged from 0.04 to 0.21 g/m2 DW. The agar yield without alkali treatment is 15 ± 0.77% and 17 ± 0.85% for alkali treatment. Universiti Malaysia Sarawak, UNIMAS 2010 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/7852/9/Siti%20Masila.pdf Siti Masila, Maslie (2010) Gracilaria sp. in Asajaya mangrove with special reference to its production. [Final Year Project Report / IMRAD] (Unpublished)
spellingShingle GE Environmental Sciences
Siti Masila, Maslie
Gracilaria sp. in Asajaya mangrove with special reference to its production
title Gracilaria sp. in Asajaya mangrove with special reference to its production
title_full Gracilaria sp. in Asajaya mangrove with special reference to its production
title_fullStr Gracilaria sp. in Asajaya mangrove with special reference to its production
title_full_unstemmed Gracilaria sp. in Asajaya mangrove with special reference to its production
title_short Gracilaria sp. in Asajaya mangrove with special reference to its production
title_sort gracilaria sp. in asajaya mangrove with special reference to its production
topic GE Environmental Sciences
url http://ir.unimas.my/id/eprint/7852/
http://ir.unimas.my/id/eprint/7852/9/Siti%20Masila.pdf