faculty of resource science and technology - ir.unimas.my cyanobacteria...4.2.3 lyngbya martensiana...
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Thermal Cyanobacteria from Panchor Hot Spring, Serian
Nur Afiqah binti Abdul Rahim (31980)
Bachelor of Science with Honours
(Aquatic Resource Science and Management)
2014
Faculty of Resource Science and Technology
Thermal Cyanobacteria from Panchor Hot Spring, Serian
Nur Afiqah binti Abdul Rahim
This project is submitted in partial fulfilment of the requirement for degree of
Bachelor of Science with Honours
(Aquatic Resource Science and Management)
Supervisor: Assoc. Prof Dr Norhadi Ismail
Faculty of Resource Science and Technology,
UNIVERSITI MALAYSIA SARAWAK
2014
DECLARATION
I hereby declare that the work in this project is my own except for quotations and summaries
which have been duly acknowledged. No portion of the work referred to in this dissertation
has been submitted in support of an application for another degree qualification of this or
any other university or institution of higher learning.
………………………………..
Nur Afiqah binti Abdul Rahim
Aquatic Resource Science and Management
Department of Aquatic Science
Faculty of Resources Science and Technology
Universiti Malaysia Sarawak
I
ACKNOWLEDGEMENT
‘‘In the name of Allah, the Most Beneficent, the Most Merciful’’
All praise belongs to Allah S.W.T for the countless blessings without I even asking,
make me a stronger person, relieve my burdens and give me strength to finish up this final
year project to the fullest.
First of all, I would like to express my deep thankful to my great supervisor, Assoc.
Prof. Dr. Norhadi Ismail for the support, time spent and patience to assist and guide me to
this day. For all the effort in giving comments, suggestion and reading of the manuscript,
without which it would not have been possible for me to produce this report in the present
form, I’m very thankful. Special thanks goes to Dr Ruhana Hassan, my dearest mentor who
are always there to shows me path when I need someone and guide me until I can afford to
be independent.
My appreciation also goes to other lecturers for all the guidance all this time. Thanks
for the support of the Faculty Resource Science and Technology and to the laboratory
assistants, Mr. Zaidi bin Haji Ibrahim, Mr. Mohd Norazlan bin Bujang Belly and others. For
the permission to conduct this study at Panchor Hot Spring, deep thanks to the head of village,
Mr Tapok anak Rayan.
Special appreciation to Dr Alan Wilson, an aquatic ecologist from Auburn University,
lab director for CyanoPros who helped to verify the identification of cyanobacteria, provide
a lot of useful literatures and give comments about the finding in this project. Besides, thanks
a lot to my dearest friends, Diyanah Ismail, Izni Arifah, Nor Syuhaidah and Nasnizah for the
help and suggestion. For my family especially my beloved parents, Mr. Abdul Rahim Abdul
Manaf and Mdm. Faiza Hasan, thanks for all the support and love.
Lastly, thanks to all who had assisted and guided me, directly or indirectly to make this
final year project completed successfully.
II
TABLE OF CONTENTS
Acknowledgement
I
Table of Contents
II
List of Abbreviations
IV
List of Tables and Figures
V
Abstract
i
1.0 Introduction & Objectives
1
2.0 Literature Review
2.1 Hot Springs in Malaysia
2.2 Morphology of Cyanobacteria
2.3 Morphological Terms Illustrated/Microscopic Appearances
2.4 Cyanobacteria Studies in Sarawak Freshwaters
2.5 Cyanobacteria of the Thermal Spring
2.6 Microscopic Identification of Cyanobacteria from Hot Spring
2.7 Chlor-Zinc-Iodide (Schultz solution) as staining regent
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3
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3.0 Materials and Methods
3.1 Study Site
3.2 Field Work
3.2.1 Cyanobacteria Samples Collection
3.2.2 Water Quality Parameter
3.3 Microscopic Observation and Identification of Cyanobacteria
3.4 Data Analysis
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4.0 Result and Discussion
4.1 Thermophilic cyanobacteria in Panchor Hot Spring
4.2 Systematic Account
4.2.1 Aphanocapsa elachista West & West, 1895
4.2.2 Chroococcus minimus (Keissler) Lemmermann, 1904
4.2.3 Lyngbya martensiana Meneghini, 1837
4.2.4 Lyngbya spirulinoides Gomont ex Gomont, 1890
4.2.5 Oscillatoria anguina Bory ex Gomont, 1892
4.2.6 Oscillatoria formosa Bory ex Gomont, 1827
4.2.7 Oscillatoria granulata Gardner, 1927
4.2.8 Oscillatoria nigra Vaucher ex Gomont, 1803
4.2.9 Oscillatoria princeps Vaucher ex Gomont, 1803
4.2.10 Oscillatoria tenuis C. A. Agardh ex Gomont, 1813
4.2.11 Oscillatoria terebriformis C. A. Agard ex Gomont, 1827
4.2.12 Oscillatoria sp.
4.2.13 Phormidium inundatum Kuetzing ex Gomont, 1892
4.2.14 Planktothrix sp.
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III
4.2.15 Pseudanabaena sp.
4.2.16 Tychonema sp.
4.3 Composition and Distribution of Cyanobacteria
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45
46
5.0 Conclusion 51
6.0 References 52
7.0 Appendices 59
IV
LIST OF ABBREVIATIONS
NH3+ : Ammonia
ºC : Celcius
Chl-a : Chlorophyll a
DO : Dissolved Oxygen
g : Gram
m/s : Metre per second
µm : Micrometer
mg/L : Milligrams per litre
NO-3 : Nitrate
PO4-3 : Phosphate
Sp. : Species
V
LIST OF TABLES
Page
Table 1: The structures of cyanobacteria used for cell identification
5
Table 2:
Brief description of the sampling stations
15
Table 3:
The list of thermophilic cyanobacteria found in Panchor Hot Spring
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Table 4:
The composition and distribution of cyanobacteria in Panchor Hot
Spring, Serian
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Table 5: The mean water quality parameters (Diyanah Ismail) (2014)
59
LIST OF FIGURES
Page
Figure 1: Map showing the sampling location at Panchor Hot Spring, Serian
13
Figure 2: Hot spring pools with wooden planks at the floor and the hot water
source in Kampung Panchor Dayak, Serian
14
Figure 3: Illustration of sampling stations at Panchor Hot Spring, Serian 15
Figure 4: Cyanobacteria growth on substratum 16
Figure 5: Floating cyanobacteria mats
16
Figure 6: Micrograph of Aphanocapsa elachista found in the samples
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Figure 7: Micrograph of Chroococcus minimus at 1000X magnification
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VI
Page
Figure 8: Micrograph of Lyngbya martensiana found in the samples
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Figure 9: Micrograph of Lyngbya spirulinoides found in the samples
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Figure 10: Micrograph of Oscillatoria anguina found in this study 29
Figure 11: Micrograph of Oscillatoria formosa found in the samples
31
Figure 12: Micrograph of Oscillatoria granulata found in the samples
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Figure 13: Micrograph of Oscillatoria nigra found in the samples
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Figure 14: Micrograph of Oscillatoria princeps found in the samples
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Figure 15: Micrograph of Oscillatoria tenuis found in the samples
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Figure 16: Micrograph of Oscillatoria terebriformis found in the samples
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Figure 17: Micrograph of Oscillatoria sp. found in the samples
40
Figure 18: Micrograph of Phormidium inundatum found in this study
41
Figure 19: Micrograph of Planktothrix sp. found in this study
43
Figure 20: Micrograph of Pseudanabaena sp. found in this study
44
Figure 21: Micrograph of Tychonema sp. found in the samples
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i
Thermal Cyanobacteria from Panchor Hot Spring, Serian
Nur Afiqah binti Abdul Rahim
Aquatic Resource Science and Management Programme
Faculty of Resource Science and Technology
Universiti Malaysia Sarawak
ABSTRACT
Cyanobacteria which also known as blue-green algae are ubiquitous, as they can be found in almost
all aquatic environments such as marine, freshwater, brackish water and even hot spring. A study
was conducted at Panchor Hot Spring, Serian in December 2013, January 2014 and March 2014 for
documentation of its species composition of cyanobacteria. Samples of cyanobacteria were
qualitatively collected for microscopic observation and identification from the pools of Panchor Hot
Spring in the form of microbial mats on the water surface, samples in the water column and samples
that attached on the wall of the pools and other substrates present. Live samples were collected for
better identification. Results showed 16 species of cyanobacteria were found belonging to eight
genera which were Aphanocapsa, Chroococcus, Lyngbya, Oscillatoria, Phormidium, Planktothrix,
Pseudanabaena and Tychonema. Systematic accounts for classification, brief description and general
environment for each species were discussed and documented. Based on the findings, Oscillatoria
terebriformis was considered as dominant species while Oscillatoria nigra was occasionally found
at Panchor Hot Spring.
Key word: Cyanobacteria, systematic accounts, composition, Panchor Hot Spring
ABSTRAK
Sianobakteria atau lebih dikenali sebagai alga biru-hijau boleh dijumpai di hampir semua ekosistem
akuatik termasuk laut, air tawar, air payau dan juga air panas. Suatu kajian telah dijalankan di
Kolam Air Panas Panchor, Serian pada Disember 2013, Januari 2014 dan Mac 2014 untuk
mendokumentasikan komposisi spesies sianobakteria. Sampel sianobakteria dalam bentuk
hamparan telah diambil dari permukaan air kolam, dalam turus air dan yang melekat pada beberapa
jenis substrat termasuk dinding kayu kolam tersebut. Sampel sianobakteria yang hidup juga telah
dikumpulkan untuk proses mengenal pasti dengan lebih baik. Keputusan mendapati 16 spesies
sianobakteria daripada lapan genera telah dikenal pasti termasuk Aphanocapsa, Chroococcus,
Lyngbya, Oscillatoria, Phormidium, Planktothrix, Pseudanabaena dan Tychonema. Perkelasan
sistematik, huraian ringkas dan persekitaran am bagi setiap spesies telah dibincangkan dan
didokumentasikan. Berdasarkan hasil kajian, Oscillatoria terebriformis adalah spesies yang
dominan sementara Oscillatoria nigra adalah spesies yang jarang dijumpai di Kolam Air Panas
Panchor.
Kata kunci: Sianobakteria, perkelasan sistematik, komposisi, Kolam Air Panas Panchor
1
1.0 Introduction & Objective
Hot springs as defined by Pirajno (2009) are water with temperatures of above 36.7ºC
and mean water temperature is higher than mean air temperature. Pirajno (2009) further
stated that hot springs can result from regions of anomalous heat flow due to high
concentration of radioactive elements in the crust or in high-heat producing granites.
However, Patricia and Malcolm (2009) categorised hot springs by water temperature of
above 42ºC.
Microorganisms that inhabit in the hot spring are extremophiles which were adapted
to that condition (Papke et al., 2003). According to Sharma (1986), algae that can be found
in very hot waters, where there are no other organisms that can live there are called ‘thermal
algae’. Majority of them are members of Cyanophyceae as they have their genetic
adaptations to survive in this harsh environment (Brock, 1967).
Cyanophyceae is a class for cyanobacteria which are also known as blue-green algae.
They are unicellular prokaryotes with a gram-negative cell wall (Prescott, 1978).
Cyanobacteria are ubiquitous, as they can be found in marine, freshwater, brackish water
and even hot spring (Ruhana et al., 2008). Cyanobacteria grow best in aerobic environment
with the availability of sunlight for them to undergo photosynthesis (Richard, 1995).
According to Richard (1995), cyanobacteria are capable of producing toxins.
Freshwater cyanobacterial toxins are as potent as those produces by marine algae, especially
the red tide, which become the most harmful algal blooms (Carmichael, 1994a). According
to the World Health Organization (2003), cyanobacterial blooms can occur in marine,
estuarine and freshwater ecosystem but its occurrence in freshwater give the greatest public
health concern particularly in drinking water reservoir or recreational waters. Carmichael
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(1998) has reported that freshwater cyanobacteria have higher tendency to produce toxic
bloom compare to marine species. The most common cyanobacterial toxins are microcystins
and neurotoxins. The peptide toxins in the class microcystins are considered as the most
widespread cyanotoxins (Carmichael, 1994b). Several of the cyanobacterial species are
known to produce toxin including Anabaena (Sotera-Santos et al., 2008). Research done by
Krienitz et al. (2003) found that there are several species of cyanobacteria from hot spring
at Lake Bogoria, Kenya, that are capable of producing cyanotoxins. These include
Phormidium terebriformis, Oscillatoria willei, Spirulina subsalsa and Synechococcus
bigranulatus.
According to Brock (1969), the existence of thermophilic cyanobacteria has been
extensively documented with the earliest study being carried out at Yellowstone National
Park, Wyoming, USA. In several tropical countries, cyanobacteria of hot spring have been
studied in Thailand (Krienitz et al., 2003), Kenya, India (Lacap et al., 2005) and Philippines
(Sompong et al., 2008). However, published data on thermal cyanobacteria from hot spring
are lacking in Malaysia especially in Sarawak. Thus, this is the first study carried out to
record the algal community in Panchor Hot Spring in Serian, Sarawak. The main objective
of this study was to document species composition of cyanobacteria that inhabit the Panchor
Hot Spring. Water quality parameters (dissolved oxygen, pH, temperature, chlorophyll-a,
orthophosphate, nitrate and ammonia) of the area in collaboration work with other colleague,
Diyanah Ismail (2014) (unpublished data) was used to support the cyanobacteria
assemblages there.
3
2.0 Literature Review
2.1 Hot Springs in Malaysia
According to Copper and Copper (2009), natural hot springs in Malaysia are volcanic
origin. Wehr and Sheath (2003) derived that hot springs are extreme environments in
geologically active region with water temperatures ranging from 35 to 110ºC which are
affected by the geothermal sources. The water of hot spring is also known to have rich in
minerals and have a reputation for being beneficial for health (Sharma, 1986). They are
thought to have specific healing power derived from its natural minerals. Different minerals
dissolved in the water column can produce different health benefits, colour and smells
according to the hot spring’s nature (Sharma, 1986).
Pedas Hot Spring in Negeri Sembilan has long been famous for the therapeutic
quality of the thermal waters and being visited by people for more than 60 years. There are
many locations of undeveloped hot spring in Malaysia and they are mainly used by locals
who believe in the healing powers of the water. According to the standard of the World
Health Organization (WHO), the most suitable temperature for soaking or bathing is between
35ºC and 45ºC (Zainal et al., 2012).
Felda Residence Hot Springs, Sungkai, Perak is one of the most popular hot spring
in Peninsular Malaysia. This place is known for its ability to heal disease such as muscle
aches, joint pain and improve body circulation. Besides, the residents also believe that the
cyanobacteria present are good for their skin when applied and act as algal therapy (Bernama,
2012).
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2.2 Morphology of Cyanobacteria
The size of the cyanobacteria cell varies from less than 1µm in diameter to 2 µm in
length (Platt and Li, 1986; Komárek 1999). However, solitary cells that form a cluster or
colony may reach a diameter up to 100 µm (Platt and Li, 1986; Komárek 1999). According
to Bellinger and Sigee (2010), the unicellular form of Synechococcus to large colonial of
Microcystis and Anabaena are barely visible under the light microscope.
The cyanobacterial cell walls are mainly made up of protein with a peptidoglycan
layer that connects the cytoplasmic membrane. Lipoproteins and lipopolysaccharides are
also present (Drew and Weckesser, 1982). Some species of cyanobacteria have gas vacuoles
which appear quite dark structure under the light microscope (Bellinger and Sigee, 2010).
The gas vacuoles are useful for the planktonic species to control their position in water
column (Bellinger and Sigee, 2010).
Freshwater cyanobacteria can be divided into four main groups based on their general
morphology, presence/absence of specialized cells, and the nature of branching in
filamentous forms. These groups form the basis for current taxonomy of this phylum which
includes members of order Chroococcales, Oscillatoriales, Nostocales and Stigonematales
(John et al., 2002).
2.3 Morphological Terms Illustrated/ Microscopic Appearances
There are various morphological characteristics that can be made to differentiate the
genus or species of the cyanobacteria. Some of the morphological characteristics that usually
used are based on the present of heterocyst and akinetes to differentiate between the order
Nostocales and Stigonematales with the order Oscillatoriales (John et al., 2002).
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Table 1: The structures of cyanobacteria used for cell identification according to Anagnostidis and Komárek
(1986; 1988; 1989; 1991); Bellinger and Sigee (2010); Deka and Sarma (2011); Prescott (1962) and
Wehr and Sheath (2003).
Illustrations Definitions
1. Trichome
A term referring to a filament or thread-like
series of cells without its sheath, usually
found in filamentous cyanobacteria.
2a. Akinete
2b. Heterocyst
a. A spore or thick-walled cell produced from
a vegetative cells attached to filaments which
as an asexual resting stage, concentrated food
reserve and usually resistant to harsh
condition.
b. A thick-walled, multi-layered, specialised
cell and weakly pigmented cell in some
filamentous which enable fixation of gaseous
nitrogen to ammonium.
a
b
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3. Apex (Apical) cell
Cell positioned at the end or tip of a filament
or thallus.
4. Capitate
With a distinct head which swollen at one end
or at both ends.
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5. Attenuated/ Tapered
Narrowed or tapering toward the ends.
6. Calyptra
Without calyptra
A thickened or enlarged tip of a trichome in
filamentous cyanobacteria.
a. Round-shaped
b. Cone-shaped
b
a
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2.4 Cyanobacteria Studies in Sarawak Freshwaters
7. Sheath
A covering envelope which are sometimes
thin and composed of mucilage enclosing a
filament or group of cells.
8. Cross Wall
a.
b.
c.
A partition or dividing wall which divide each
cell.
a. Present of cross wall
b. Absent of cross wall
c. Granular at cross wall
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Ruhana et al. (2008) studied the composition of cyanobacteria in Sungai Semadang
and Sungai Bengoh in Kuching, Sarawak. They found 38 genera of cyanobacteria where
Lyngbya, Oscillatoria, Stigonema and Spirulina were the common genera (Ruhana et al.,
2008). Nasarudin and Ruhana (2011a) reported 43 species of cyanobacteria belonging to 30
genera in selected aquatic ecosystems including aquaculture ponds, cage cultures, waterfall
and artificial lake in Serian, Bau and Batang Ai. The most widely distributed genera found
were Chroococcus, Lyngbya, Nostoc and Oscillatoria (Nasarudin and Ruhana, 2011a).
Nasarudin and Ruhana in (2011b) had further studied cyanobacteria in empurau (Tor
tambroides) aquaculture ponds at IFRPC Tarat. They found that Synechocystis, Oscillatoria,
Chroococcus, Nostoc and Pleurocapsa were the common cyanobacteria found in these
ponds.
2.5 Cyanobacteria of the Thermal Spring
Cyanobacteria can undergo photosynthesis and tolerate well in high temperature and
in other extreme environments. Cyanobacteria can occur abundantly in almost photic
habitats. As stated by Ward and Castenholz (2000), cyanobacteria that are dominating in
thermal waters include masses of coccoid species (Aphanocapsa, Chroococcus,
Cyanobacterium and Synechococcus) and filamentous species (Mastigocladus, Oscillatoria
and Phormidium).
Cyanobacterial accumulations may form mat of several centimeters thick and have
quite high rates of primary production (Castenholz and Wickstrom, 1975). Akmar et al.
(2011) in their study at Ulu Legong Hot Spring, Baling, Kedah stated that the organisms that
forming microbial mat are usually cyanobacteria, diatoms and bacteria that compete for
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available nutrients (nitrogen, phosphorus, iron and carbon). Studies made by Sompong et al.
(2008) in six hot spring in Thailand found that there are 14 distinct species of cyanobacteria
according to their morphological structure.
Thermophilic blue-green algae are particularly concentrated in hot spring waters with
a pH of > 6 where they form conspicuous and often unicellular algae mat-like covering over
submerged substrate. According to Castenholz (1969), the shallowness and the clarity of
most thermal waters, in addition to high light intensities exposure, the thermophilic
organisms should consider a various types of heat adaptation. Moreover, they can also adapt
to high concentration of ions present in the water column (Castenholz, 1969).
Algae present at the thermal environment are attached, at least initially to the
substratum. Finally, they may form large floating surface mats which can be buoyed up by
the oxygen produced during photosynthesis (King, 1988). According to Health Canada
(2002), cyanobacterial mat are formed mostly at night, when they are unable to adjust their
buoyancy and finally become over buoyant especially when there are no wind and water
circulation.
2.6 Microscopic Identification of Cyanobacteria from Hot Spring
Lukavský et al. (2011) had found eight taxa of cyanobacteria in a hot spring of
Panharevo, Sofia, Bulgaria. The mats of the cyanobacteria were differentiated according to
their position with respect to the outlet of the hot water. The species found were Gloeocapsa
gelatinosa, Leibleinia epiphytica, Phormidesmis molle, Phormidium corium, Symploca
thermalis, Lyngbya thermalis, Calothrix thermalis and Mastigocladus laminosus.
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Previously, microscopic analysis of cyanobacteria from the Wonder Lake geothermal
springs, Laguna, Phillippines by Lacap et al. (2005) had recorded Fischerella and
Oscillatoria in their study site. Arif (1997) had recorded that Synechococcus and Oscillatoria
to be the common cyanobacterial genera in the Asian hot springs. The author also noted that
Synechococcus spp. usually occurred as a thin mat.
Oscillatoriales has been reported as the most conspicuous species of cyanobacteria
that inhabit the hot springs of temperature between 40ºC to 66ºC (Pentecost, 2003). Chorus
and Bartram (1999) documented that the filamentous Oscillatoriales are well present in
sulphur-rich environments. Their filamentous structure and polysaccharides structure may
be the reason for them to become the backbone of the microbial mat (Van Gemerden, 1993).
2.7 Chlor-Zinc-Iodide (Schultz solution) as staining reagent
Members of Oscillatoriales family especially the genus Oscillatoria were seldom get
confused with genus Phormidium. Therefore, observation and cell identification are much
better to be done by staining them with an aqueous dye or chlor-zinc-iodide (Prescott, 1962).
The protocol to prepare this staining solution was discussed by Drouet (1937) which
composed of potassium iodide (KI), anhydrous zinc chloride (ZnCl2) and iodine crystals.
The chlor-zinc-iodide is used to stain the sheaths of cyanobacteria hence different species of
sheathed cyanobacteria may be differentiated. The solution should be mounted accordingly
and less than a minute is required for the production of the distinct blue colour in the sheaths.
3.0 Materials and Methods
3.1 Study Site
Sampling was carried out at Panchor Hot Spring which is situated at N01⁰15’16.6’’,
E110⁰26’51.3’’, Serian, Sarawak (Figure 1). This hot spring is managed by the villagers of
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Kampung Panchor Dayak under the supervision of The Ministry of Tourism Sarawak. The
surrounding area of the hot spring is swampy covered by secondary forest (Roslan, 2006).
There are eight pools divided by wood planks (Figure 2). The floor of each pool is also made
up of wood planks. Thus the water is freely flowing from the source of the hot spring to other
pools and finally discharges in the channel that flows through the swamp into Sungai
Kepayang. Four of the pools are shaded under a roof while the other four are exposed to
direct sunlight.
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(Google Maps, 2014)
Figure 1: Map showing the sampling location at Panchor Hot Spring, Serian
(Director of National Mapping, Malaysia, 2010)
Panchor Hot
Spring 1º 15” N
N
110º 26” E
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Figure 2: Hot spring pools with wooden planks at the floor and the hot water source (arrow) in
Kampung Panchor Dayak, Serian.
3.2 Field work
3.2.1 Cyanobacteria Samples Collection
This study was conducted in three sampling times which were on December 2013,
January 2014 and March 2014. Samples of cyanobacteria were qualitatively collected from
the pools of Panchor Hot Spring. Six out of eight pools were selected at the sampling stations
and the brief description of the sampling station were recorded as in Table 2, where three
pools are under shaded area and the other three from the exposed area (Figure 3). Additional
samples were collected from the water discharge drainage. Triplicate samples were taken
from each station at the periphery (Figure 3) and from the middle of the pools.