Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia

Assessments (environmental relationship, diversity and chemical composition) on seaweed communities were carried out at inter-tidal rocky shores around Bintulu, Sarawak from January to October 2008. A total of 35 species of seaweeds were recorded from five rocky shores: Tg. Batu (15 species), Tel...

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Main Author:	Wong, Siaw Chia
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Marine algae - Ecophysiology Marine algae- Environmental aspects Marine algae
Online Access:	http://psasir.upm.edu.my/id/eprint/78057/1/FSPM%202013%205%20ir.pdf
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id	my-upm-ir.78057
record_format	uketd_dc
spelling	my-upm-ir.780572022-01-21T01:26:56Z Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia 2013-07 Wong, Siaw Chia Assessments (environmental relationship, diversity and chemical composition) on seaweed communities were carried out at inter-tidal rocky shores around Bintulu, Sarawak from January to October 2008. A total of 35 species of seaweeds were recorded from five rocky shores: Tg. Batu (15 species), Telekom Beach (22 species), Similajau National Park (21 species), Kuala Similajau (27 species) and Kg. Kuala Nyalau (28 species). Rhodophyta was the most diverse division followed by Chlorophyta and Phaeophyta. There was no distinct zonation for seaweed distribution in all rocky shores with species of Chlorophyta, Phaeophyta and Rhodophyta divisions were recorded at different level of inter-tidal (lower, middle and higher) shores and overlapped. Diverse life forms of seaweed were observed as adaption to the environment with many microhabitats. Five types of seaweed life forms were identified namely epilithic, epipelic, epiphytic, epizoic and drift. The same seaweed species can be found in any of the mode of life form such as Ulva intestinalis, Padina minor and Amphiroa fragilissima. However, epilithic seaweeds (45-56.76%) occurred to be the most occurring life form at all study sites and followed by epizoic seaweeds (23.64- 33.33%). Based on Bray-Curtis 70% similarity evaluation, three distinct clusters on the species occurrence in relation to months were observed at Tg. Batu, six at Telekom Beach, two at Similajau National Park, two at Kuala Similajau and three at Kg. Kuala Nyalau. Jaccard community similarity coefficient index showed that seaweed from Kuala Similajau and Kg. Kuala Nyalau were most similar. Based on BVSTEP analysis, combination of four physical variables (salinity, turbidity, conductivity and total suspended solid) with Spearman rank correlation (ρ) 0.877 at Telekom Beach and a combination of two chemical variables (ammonium and orthophosphate) with (ρ) 0.771 at Kg. Kuala Nyalau were the best combinations for occurrence and distribution of seaweed at each site. No specific variable was recorded e.g. salinity at Similajau National Park with (ρ) 0.853 and nitrite at Tg. Batu with (ρ) 0.580. There were significant difference (p<0.01) of proximate composition and minerals between selected seaweed species. Moisture content was found highest in Rhodophyta (82.68-88.56%) and ash highest in Chlorophyta (23.79-32.50%). Crude protein, crude fat, crude fiber were highest in Padina minor (6.36% of dry matter of 100 g of plant), Acetabularia major (0.84%) and Anadyomene plicata (16.77%). Acanthophora spicifera contained highest percentage of total carbohydrate with 67.32%. This study showed seaweeds contained high quantity of macro-minerals (Ca, Mg, N and K) ranged from 143.73-3360.33 mg/100g and micro-minerals (Fe, Zn, Cu and Mn) ranged from 1.34-650.81 mg/100g. Marine algae - Ecophysiology Marine algae- Environmental aspects Marine algae 2013-07 Thesis http://psasir.upm.edu.my/id/eprint/78057/ http://psasir.upm.edu.my/id/eprint/78057/1/FSPM%202013%205%20ir.pdf text en public masters Universiti Putra Malaysia Marine algae - Ecophysiology Marine algae- Environmental aspects Marine algae Zakaria, Muta Harah
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Zakaria, Muta Harah
topic	Marine algae - Ecophysiology Marine algae- Environmental aspects Marine algae
spellingShingle	Marine algae - Ecophysiology Marine algae- Environmental aspects Marine algae Wong, Siaw Chia Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
description	Assessments (environmental relationship, diversity and chemical composition) on seaweed communities were carried out at inter-tidal rocky shores around Bintulu, Sarawak from January to October 2008. A total of 35 species of seaweeds were recorded from five rocky shores: Tg. Batu (15 species), Telekom Beach (22 species), Similajau National Park (21 species), Kuala Similajau (27 species) and Kg. Kuala Nyalau (28 species). Rhodophyta was the most diverse division followed by Chlorophyta and Phaeophyta. There was no distinct zonation for seaweed distribution in all rocky shores with species of Chlorophyta, Phaeophyta and Rhodophyta divisions were recorded at different level of inter-tidal (lower, middle and higher) shores and overlapped. Diverse life forms of seaweed were observed as adaption to the environment with many microhabitats. Five types of seaweed life forms were identified namely epilithic, epipelic, epiphytic, epizoic and drift. The same seaweed species can be found in any of the mode of life form such as Ulva intestinalis, Padina minor and Amphiroa fragilissima. However, epilithic seaweeds (45-56.76%) occurred to be the most occurring life form at all study sites and followed by epizoic seaweeds (23.64- 33.33%). Based on Bray-Curtis 70% similarity evaluation, three distinct clusters on the species occurrence in relation to months were observed at Tg. Batu, six at Telekom Beach, two at Similajau National Park, two at Kuala Similajau and three at Kg. Kuala Nyalau. Jaccard community similarity coefficient index showed that seaweed from Kuala Similajau and Kg. Kuala Nyalau were most similar. Based on BVSTEP analysis, combination of four physical variables (salinity, turbidity, conductivity and total suspended solid) with Spearman rank correlation (ρ) 0.877 at Telekom Beach and a combination of two chemical variables (ammonium and orthophosphate) with (ρ) 0.771 at Kg. Kuala Nyalau were the best combinations for occurrence and distribution of seaweed at each site. No specific variable was recorded e.g. salinity at Similajau National Park with (ρ) 0.853 and nitrite at Tg. Batu with (ρ) 0.580. There were significant difference (p<0.01) of proximate composition and minerals between selected seaweed species. Moisture content was found highest in Rhodophyta (82.68-88.56%) and ash highest in Chlorophyta (23.79-32.50%). Crude protein, crude fat, crude fiber were highest in Padina minor (6.36% of dry matter of 100 g of plant), Acetabularia major (0.84%) and Anadyomene plicata (16.77%). Acanthophora spicifera contained highest percentage of total carbohydrate with 67.32%. This study showed seaweeds contained high quantity of macro-minerals (Ca, Mg, N and K) ranged from 143.73-3360.33 mg/100g and micro-minerals (Fe, Zn, Cu and Mn) ranged from 1.34-650.81 mg/100g.
format	Thesis
qualification_level	Master's degree
author	Wong, Siaw Chia
author_facet	Wong, Siaw Chia
author_sort	Wong, Siaw Chia
title	Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
title_short	Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
title_full	Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
title_fullStr	Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
title_full_unstemmed	Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia
title_sort	seaweed communities of inter-tidal rocky shores around bintulu, malaysia
granting_institution	Universiti Putra Malaysia
publishDate	2013
url	http://psasir.upm.edu.my/id/eprint/78057/1/FSPM%202013%205%20ir.pdf
_version_	1747813278564745216

Seaweed communities of inter-tidal rocky shores around Bintulu, Malaysia

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