Study on Coral Lifeform and Species that Susceptible to Bleaching in PLTU Paiton Water
Transcript of Study on Coral Lifeform and Species that Susceptible to Bleaching in PLTU Paiton Water
The Proceedings of
JIWECC 2010
Japan-Indonesia Workshop on Estuary
and Climate Change
8 - 10 August 2010 Seminar Room, Rectorat Building
Institut Teknologi Sepuluh Nopember Kampus ITS Sukolilo Surabaya
BMKG
Organized by Tohoku University, Japan
Institut Teknologi Sepuluh Nopember Surabaya, Indonesia
Meteorology Climatology and Geophysics Agency of Indonesia (BMKG)
PROCEEDING OF
JAPAN – INDONESIA WORKSHOP ON ESTUARY AND CLIMATE CHANGE
8 - 10 August 2010
Institut Teknologi Sepuluh Nopember
Surabaya, Indonesia
Edited By:
Dr. Suntoyo Ocean Engineering Department
ITS Surabaya
Organized By:
Tohoku University, Japan
Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
Meteorology Climatology and Geophysics Agency of Indonesia (BMKG)
Supported By:
Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
Society for the Promotion of Construction Engineering, Japan
Department of Ocean Engineering, Faculty of Marine Technology, ITS
ORGANIZING COMMITTEE
[Tohoku University]
Professor Hitoshi Tanaka, Dr. Eng, Tohoku University, Japan (Co-chairman)
Professor Akira Mano, Dr.Eng, Tohoku University, Japan Professor Emeritus Masaki Sawamoto, Dr. Eng, Tohoku University, Japan
Professor So Kazama, Dr. Eng, Tohoku University, Japan
Assoc. Prof. Makoto Umeda, Dr. Eng, Tohoku University, Japan
[Institut Teknologi Sepuluh Nopember]
Professor Priyo Suprobo, PhD
Rector of the Institut Teknologi Sepuluh Nopember (ITS) (Honorary Chairman)
Professor Widi Agoes Pratikto, PhD
Department of Ocean Engineering (Chairman)
Professor Paulus Indiyono, PhD, Department of Ocean Engineering
Professor Eko Budi Djatmiko, PhD, Department of Ocean Engineering
Professor Djauhar Manfaat, PhD, Faculty of Marine Engineering
Professor Joni Hermana, PhD, Faculty of Civil Engineering and Planning
Suntoyo, M.Eng, PhD, Department of Ocean Engineering (Secretary)
Haryo Dwito Armono, M.Eng, PhD, Department of Ocean Engineering
Murdjito, MSc.Eng, Department of Ocean Engineering
Kriyo Sambodho, M.Eng, PhD, Department of Ocean Engineering
[Meteorology Climatology and Geophysics Agency of Indonesia (BMKG)]
Dr.Ir. Sri Woro B. Harijono, MSc, Chief of BMKG-Indonesia
Dr. Andi Eka Sakya M.Eng, General Scretary of BMKG-Indonesia
Drs. Soeroso Hadiyanto MSc, Deputy of Climatology Broad of BMKG-
Indonesia
Dr. Edvin Aldrian, MSc, Director of Center for Climate Change and Air Quality
of BMKG-Indonesia
Copyright ©2010 Dept. of Ocean Engineering, Faculty of Marine Technology
Institut Teknologi Sepuluh Nopember (ITS)
Surabaya, Indonesia
All Right Reserved
Proceeding of Japan – Indonesia Workshop on Estuary and Climate Change 2010
August 8th
-10th
Surabaya, Indonesia
Contents
Preface
Keynote Speaker
Estuarine Hydro-& Morpho-dynamics and Global Climate Change 1
Hitoshi Tanaka (Tohoku University, Japan)
Coastal and Estuary Hydrodynamics
Performance of an Eddy Viscosity Model for Plunging Breakers 7
Sabaruddin Rahman, Akira Mano and Keiko Udo(Tohoku University, Japan)
Assessment of a Hydrodynamic Numerical Model with Wetting-Drying Capability 13
Purwanto Bekti Santoso, Nastain, and Wahyu Widianto (Universitas Jenderal
Soedirman, Indonesia)
Wave Forces On A Crown Wall Of Deep Water Berm Breakwater 21
Nurin Hidayati, Alf Tørum and Øivind A. Arntsen (Norwegian University of Science and
Technology (NTNU) Trondheim, Norway )
Defensive Effects of a Breakwater Combining Submerged Breakwater and Horizontal 31
Plate
Kairi Morizawa and Yoshihiro Tsurumoto (Advanced Course of Kagawa National
College of Technology, Japan)
Vortex Shedding Analysis on Pipeline for Shallow Water 37
Esti Setiawati, Wisnu Wardana, and Suntoyo (Ocean Eng. Dept., ITS, Indonesia)
Nearshore Morphology and Sediment Transport
Identification of River Mouth Influence on Longshore Sediment Transport in the 43
Adjacent Beach
Eko Pradjoko and Hitoshi Tanaka (Tohoku University, Japan)
Practical Formulations Of Bottom Shear Stress And Sediment Transport 49
For Acceleration-Skewed Waves
Suntoyo, Hitoshi Tanaka, Bagus Afrianto and Widi A Pratikto (Ocean Eng. Dept., ITS,
Indonesia)
Proceeding of Japan – Indonesia Workshop on Estuary and Climate Change 2010
August 8th
-10th
Surabaya, Indonesia
Sediment Modeling Level of Pemangkat’s National Fishery Port (Ppn) , West 55
Kalimantan and its Comparison with Various Alternative Conditions
Sadri, Purnamawati and Eko Prasetyo (Politeknik Negeri Pontianak, Kalimantan Timur,
Indonesia)
The Performance of Dredging Vessel Towards Sedimentation Problem and Extreme 61
Rainfall in Main Ship Channel Kapuas River - West Kalimantan
Mochammad Meddy Danial, Akhmadali and Barlian s (Tanjungpura University,
Pontianak, Indonesia)
Coastal Estuarine Management and Disaster Mitigation
Study on River Mouth Clogging and its Excavation Conditions of Small River Mouth 67
Hisao Nagabayashi and Hitoshi Tanaka (Nihon University, Japan)
Theory on Saltwater in Estuary (The Second Report) 73
Mikio Sasaki, Hitoshi Tanaka and Makoto Umeda (Hachinohe Institute of Technology,
Japan)
Spatial and Temporal Variations of Salinity in a Shallow Lagoon 79
Makoto Umeda, Eriko Konish, Hitoshi Tanaka and Mikio Sasaki (Tohoku University,
Japan)
Observations On Beach Deformation Before And After The Indian Ocean Tsunami 85
Around Banda Aceh Using Satellite Images
Syamsidik, Muzailin and Syamsul Bahri (Syah Kuala University, Banda Aceh,
Indonesia)
Estimation of Discharge Through Tidal Inlet of Lake Jusan, Japan 91
Atas Pracoyo, Makoto Umeda, Hitoshi Tanaka and Mikio Sasaki (Tohoku University,
Japan)
A Bacterial community shifting in a U-shape burrow of Arenicola marina 97
Maya Shovitri and Jens Harder (Biology Dept. ITS, Indonesia )
Study on Coral Lifeform and Species that Susceptible of Bleaching in Pltu Paiton Water
Dian Saptarini and Farid Kamal Muzaki (Biology Dept. ITS, Indonesia )
105
The Influence of Configuration of Floating Raft for Sea Weed Cultivation to Wave
Reduction
Ho Putra Setiawan, Jumaedi Slamet (Politeknik Negeri Pontianak, Kalimantan Timur,
Indonesia)
113
Coastal Estuarine Management and Disaster Mitigation
Salinity Intrusion Through Estuary Analysis due to Sea Level Rise using Direct Step
Method (Case Study: River Banyuasin and Telang)
Feril Hariati (University of Ibn Khaldun, Bogor, Indonesia)
119
Proceeding of Japan – Indonesia Workshop on Estuary and Climate Change 2010
August 8th
-10th
Surabaya, Indonesia
Isohyets Mapping of Gerbangkertosusila Based on Noaa-Avhrr Data
Eko Prasetyo, Muhammad Taufik, Noer Rochma Damayanti (Class II Meteorological
Maritime Perak II BMG, Surabaya, Indonesia)
125
Climate Change Accelerate Coastal Erosion and Seawater Intrusion, Estuary Dam as a
Shore Protection Solution, also for Drinking Water and Coastal Barrier
A.A.N. Agung (Bappeda Klunkung, Bali, Indonesia)
131
Supply Chain Risk Management Strategies for Managing Maritime Disruptions due to
the Effects of Climate Change: Evidence from the Australian-Indonesian Wheat Supply
Chain
Saut Gurning, Stephen Cahoon and Kriyo Sambodho. (Australian Maritime College
Newnham Drive, Launceston-Tasmania, Australia)
137
Implementation Of Law 27/2007 About Management Of Coastal And Small Islands
Region In Sidoarjo Regency And Surabaya City
Siti Nurlaela, Widi Agoes Pratikto, Suntoyo, Kriyo Sambodho( ITS, Indonesia )
145
PREFACE
It is my great honor and pleasure to organize “Japan-Indonesia Workshop on Estuary and Climate Change” in the campus of Institut Teknologi Sepuluh Nopember (ITS), Surabaya,
Indonesia on the occasion of the memorial 50th
year anniversary of ITS. Since we organized previous “Japan-Indonesia Estuary Workshop” last time in Jakarta with great success in 2005, five years has passed already. After 2005, the estuary workshop has been held in various
countries in Asian regions such as Hanoi and Ho Chi Minh City, Vietnam and Bangkok,
Thailand. Now we come back to Indonesia again to exchange our knowledge and experiences
related to estuary and climate change.
It should be mentioned here that in the year 2006, a Memorandum of Understanding
(MoU) has been signed between Tohoku University and Institut Teknologi Sepuluh
Nopember to promote further collaboration between two institutions. We are highly confident
that this workshop will serve as an important step to accelerate further cooperation between
these two universities in term of collaborative research, faculty and student exchange, joint
educational program etc.
Finaly, on behalf of the organizing committee of the workshop, sincere appreciation is
expressed to all authors contributing to our workshop. Special thanks are also due to all
keynote speakers and chairpersons for the efforts in preparing the manuscripts and managing
the sessions, respectively.
With best wishes,
Prof. Hitoshi TANAKA, PhD
Chairman of the Organizing Committee of the Japan-Indonesia Estuary Workshop
Department of Civil Engineering
Tohoku University
Japan.
Prof. Widi Agoes Pratikto, PhD
Chairman of the Organizing Committee of the Japan-Indonesia Estuary Workshop
Department of Ocean Engineering,
Institut Teknologi Sepuluh Nopember
Indonesia.
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Japan - Indonesia Workshop on Estuary and Climate Change 2010
August 8th
-10th
Surabaya, Indonesia
STUDY ON CORAL LIFEFORM AND SPECIES THAT SUSCEPTIBLE OF
BLEACHING IN PLTU PAITON WATER
DIAN SAPTARINI 1)
and FARID KAMAL MUZAKI1)
1)
Laboratory of Ecology, Department of Biology
Institut Teknologi Sepuluh Nopember (ITS)
Kampus ITS, Keputih-Sukolilo, Surabaya (60111), Indonesia
e-mail: [email protected]; [email protected]
Abstract
Coral reefs are very complex ecosystems with high biodiversity though susceptible to any threats and
disturbances. For the latest two decades, there have been many reports of cases of damaged coral reefs
caused by bleaching. Coral bleaching (loss of Zooxanthellae symbiotic and/or their pigments) is a
stress response which can be caused by several environmental variables, especially by the increase of
sea water temperature, because of anthropogenic factors.
This research aimed to know the lifeform and species of corals that are susceptible to bleaching at
different sea depths. The research was conducted in coral reefs areas around PLTU Paiton,
Probolinggo. The observation was by Line Intercept Transect / LIT method with 100 m length of
transects and laid at 3 and 8 m depths in order to represent shallow and deep waters condition. We observed that at 3 m depth, massive coral and Acropora are more susceptible to bleaching. While in 8 m depth, bleaching is commonly occurred to massive coral, mushroom coral, foliose coral, and
submassive coral. The main finding was that, Porites, Acropora, Fungia, Goniopora, Favites,
Pectinia, and Lobophyllia are the most susceptible genera of coral bleaching.
Keywords: coral bleaching,coral lifeform, coral species.
1. INTRODUCTION
Over one to two last centuries, human population growth and development have greatly altered not
only local environment but also global environment as a whole. These changes include the increase in
greenhouse gasses/GHGs concentration thought to be one major cause of global climate change
(Buddemeier et al., 2004). One og the most prominent effect of global climate change is the increase
of average sea water temperature that can trigger coral bleaching (Buddemeier et al., 2004; Obura
2004; Manzello et al. 2007; Baker et al. 2008). Coral bleaching is defined by the loss of coral color
caused by the degradation of Symbiodinium population (Zooxanthellae symbiotic) and/or their
pigments (Douglas, 2003).
Because coral reefs occur near land junctions of, sea and atmosphere, their natural habitat is more
sensitive to both the marine and terrestrial changes of any climate change and are extremely
vulnerable to both climate change and human activities (Buddemeier et al., 2004). In the north coastal
area of East Java, coral reefs are still commonly found in Paiton, Pasir Putih, and Baluran National
Park (Situbondo).
The presence of coral bleaching cases in those locations has been monitored since 2009, especially
around PLTU Paiton. During 2009-2010, there was a significant increasing of anthropogenic
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activities, such as port establishment for new power plant (PLTU Unit 3, 4, and 9) and increase of sea
transportation.
Based on these new developments, there is a clear need to do some research to know if there are
any changes in the lifeforms and species of corals. The results from this research will form a baseline
data baseline data for future coral reef management and conservation.
2. METHODOLOGY
2.1. Study Site
The research was conducted around PLTU Paiton, Probolinggo. The observations were performed in five different stations; Banyuglugur, Bhinor, Water Intake and Water Discharge canal of PLTU U 1
& 2 Paiton, and Mercusuar. The geographic positions of each location were mentioned in the table
below;
Table 1. Geographical Position of Coral Reefs Observation Location in PLTU Paiton
No. Location Position Latitude (LS) Longitude (BT)
1 Bhinor 7042’41.3” 113
033’34.6”
2 Water Intake 7042’42.3” 113
035’15.2”
3 Water Discharge 8 meter 7042’53.96” 113
035’48.86”
4 Water Discharge 3 meter 7042’51.54” 113
035’54.44”
5 Banyuglugur 7043’11.9” 113
036’34.7”
6 Mercusuar 7042’02.5” 113
034’26.1”
Fig 1. Location map of coral monitoring
2.1. Observation Method
The observation of coral species was conducted in two periods; July 2009 and June 2010. The
method used is Line Intercept Transect/LIT with 100 meters line transects for each location that
applied in two different depths; 3 and 8 m. The observed parameters are coral lifeform, coral species,
and percentage of life coral coverage. Category of lifeform refers to AIMS (Australian Institute of
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Marine Science) (English et al., 1994) and Keputusan Kepala Bapedal No.Th. 2001. The identification
of coral species refers to Allen (1994), Carpenter & Niem (1998), Suharsono (1996) and Suharsono
(2004).
3. RESULTS AND DISCUSSIONS
3.1. Environment variables
The results of environment variables measurement in 2009 and 2010 are showed in the table 2 below;
Table 2. Values of Environmental Variables of PLTU Paiton Surrounding Water
Parameter Unit Year Station
Bi Mr WI WD Bg
Surface Temperature 0C
2009 30 30 30 33 30 2010 32 31 32 35 31
Bottom Temperature 0C
2009 30 29 29 31 30 2010 32 30 31 33 31
Salinity ‰ 2009 29 28 28 30 29
2010 30 29 29 30 30
Visibility m 2009 5 12 10 10 5
2010 5 12 10 10 5
Note:
Bi = Binor,WI = Water Intake, WD = Water Discharge, Bg = Banyuglugur, Mr = Mercusuar
The observation results show that there were no significant differences in physical parameters.
However, salinity and sea water temperature increased for 2010 compared to 2009. The average
increase was 1-20C; in which estimated to influencing the change of coral coverage percentage in
study site.
3.2. Coral Lifeform and Species
In Bhinor and Banyuglugur, coral reefs can be found at 3-5 m depth and in mercusuar, at 8-12 m
depth. While at Water Intake and Water Discharge, corals can be found at 2-10 m depth. Because of
those conditions, we did only one transect in Bhinor, Mercusuar and Banyuglugur . Therefore, total
number of transect in all locations are 7 unit.
The observations for both periods : June 2009 and July 2010 are detailed in Table 3 which shows the
changing of coral reefs condition around of PLTU Paiton, as explained by the changing of percentage
value of coral coverage, including bleached coral.
Table 3. Percentage of Live and Bleached Coral in PLTU Paiton Water
Parameter Year Station
Bi Mr WI.1 WI.2 WD.1 WD.2 Bg
% live coral 2009 38.11 43.96 54.09 19.71 36.95 48.60 11.58
2010 1.04 44.35 33.4 20.48 28.6 40.12 11.91
% dead coral (DC) 2009 4.45 5.15 16.48 0.61 16.4 6.61 10.46
2010 0 5.61 23.78 1.8 20.36 21.78 10.46
Note:
Bi = Binor, WI.1 = Water Intake (3m depth), WI.2 = Water Intake (8m depth), WD.1 = Water Discharge (3m
depth), WD.2 = Water Discharge (8m depth), Bg = Banyuglugur, Mr = Mercusuar
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The bleached coral percentages were increased in almost all of observation stations, except in
Bhinor and Banyuglugur. At Bhinor, the percentage only reached 1.04%. It is estimated that low coral
coverage is mainly caused by dredging activity for the construction of water discharge canal (outlet)
PLTU 2 East Java (PLTU Paiton 9).
Dredging activity influences corals in direct and indirect mechanisms. Directly, by mechanical
damage or crushing the reefs. Indirectly, dredging activity interferes with the seafloor and causes
sediment to be re-suspension, which in turn increase sedimentation rate and water turbidity.
The increased percentage of bleached coral possibly was caused by the increase of average sea
water temperature. In this case, mush as 1-20C and it is known that increases as small as 1
0 – 1.5
0C
above the average will trigger coral bleaching (Baker et al., 2008).
Bleaching can be defined as the loss color of coral, caused by the releasing of Zooxanthellae
inside coral polyp (Douglas, 2003). Zooxanthellae supplied about 95% of its photosynthesis products (amino acid, sugar, carbohydrate, and short peptides) to coral polyp which uses these nutritients for respiration, growing, and pilling up the CaCO3 (Lesser, 2004). So, releasing Zooxanthellae by coral
polyps have an impact on the corals by decreasing its metabolic abilities.
Bleached coral also more susceptible to diseases and be overgrown by algae (Westmacott et al.,
2000) therefore, if this stress continues, corals will dye. But, if the corals can adapt to these conditions,
it can stay alive and get new Zooxanthellae (Obura, 2005). The lifeform and species of bleached coral
in study site are described in Table 4.
Generally, there is a tendency that lifeform and species of bleached coral occurred at different
depth. In 3 m depth, massive coral, Acropora Branching, Acropora Tabulate, and Acropora Digitate
were coral lifeforms which tend to bleached.
Based on species, all Acroporas were susceptible to bleaching in shallow waters. Porites spp,
Favia spp, Goniastrea sp, Goniopora spp, Lobophyllia sp and Platygyra sp were another species
which bleached significantly at 3 m depth. The latest five mentioned including on massive coral.
At 8 m depth, form of massive coral were also susceptible to bleaching, though at a lower
intensity compared to 3 m depth. Besides, coral mushroom, sub massive coral, and foliose coral were
other life forms which bleached at this depth. From those lifeforms, there were some species that
susceptible of coral bleaching; Tubastrea sp, Leptoseris sp, Pectinia lacera, Montipora sp, Fungia
spp, Ctenactis sp dan Herpolitha sp.
In this study we observed that coral bleaching typically occurred at 3 m depth because shallow
waters will have higher temperatures than deep waters. Besides, temperature changes often occurr in
shallow water during day-night change. It can be assumed that temperature increases and fluctuations
triggered coral bleaching and affected coral growth in shallow areas.
In WI.2 station, lots of Acropora spp were being bleached, and it was different with Mercusuar
station that the Acropora didn’t show any indication of bleaching. This differences was possibly
caused by temperature factor as the triggers of bleaching, where WI.2 station were located around
canal PLTU Paiton that produce hot water effluent; it showed by the average value of higher
temperature compared to other observation stations.
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Table 4. Lifeform and Species of Bleached Coral in PLTU Paiton Surrounding Water
Location Depth (m) Lifeform species
Bg 3 Coral Massive (CM) Goniopora sp Porites lutea
Goniastrea spp Favia spp Platygyra sp
Lobophyllia sp
Coral Branching (CB) Porites cylindrica
Pocillopora verrucosa
Coral Encrusting (CE) Porites lichen
WI.1 3 Coral Massive (CM) Porites lutea
Porites rus
Coral Branching (CB) Pocillopora verrucosa
Acropora Branching (ACB) Acropora grandis
Acropora aspera
Acropora Digitate (ACD) Acropora digitata
Acropora humilis
Acropora Tabulate (ACT) Acropora divaricata
WI.2 8 Acropora Branching (ACB) Acropora grandis Acropora Digitate (ACD) Acropora humilis
Acropora Tabulate (ACT) Acropora divaricata Coral Massive (CM) Porites lutea
Coral Foliose (CF) Montipora spp
WD.1 3 Coral Branching (CB) Porites cylindrica
Porites nigrescens
Acropora Branching (ACB) Acropora aspera
Coral Massive (CM) Porites lutea
Goniopora sp
Lobophyllia sp
Porites rus
Galaxea sp
Coral Mushroom (CMR) Fungia spp
WD.2 8 Acropora Branching (ACB) Acropora aspera
Acropora formosa
Acropora florida
Acropora loripes
Acropora Tabulate (ACT) Acropora divaricata
Coral Branching (CB) Porites cylindrica
Coral Encrusting (CE) Porites lichen
Coral Foliose (CF) Leptoseris sp
Montipora sp
Coral Massive (CM) Porites lutea
Lobophyllia sp
Coral Submassive (CS) Pectinia lacera
Mr 8 Coral Mushroom (CMR) Fungia spp
Herpolitha sp
Ctenactis sp
Coral Massive (CM) Porites lutea
Goniopora sp
Coral Submassive (CS) Tubastrea sp
Note:
WI.1 = Water Intake (3m depth), WI.2 = Water Intake (8m depth), WD.1 = Water Discharge (3m depth), WD.2
= Water Discharge (8m depth), Bg = Banyuglugur, Mr = Mercusuar. The photographs of Coral Bleaching
in study sites can be seen in appendix.
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4. CONCLUSIONS
Based on the observation result of coral’s species and life forms in our study site, several
conclusions can be drawn:
Coral bleaching commonly occurred at 3m depth, because shallow waters have higher
temperature rather than deep waters.
At 3m depth, massive coral and Acropora (Acropora Branching, Acropora Table,
Acropora Digitate) were the most susceptible of bleaching
At 8m depth, massive coral, mushroom coral, sub massive coral, and foliose coral were
still susceptible to bleaching
In this study site, coral bleaching commonly occurred in Porites, Acropora, Fungia,
Goniopora, Favites, Platygyra, Pectinia and Lobophyllia.
5. ACKNOWLEDGEMENTS
We thank PLTU Paiton for providing the sampling area, Maria E. de Bellard for reviewing
the paper and the Ecology laboratory – Biology Department ITS (Institut Teknologi
Sepuluh Nopember) for the facilities.
.
6. REFERENCES
Allen, G.R and R Steene. (1994). Indo-Pacific Coral Reef Field Guide. Singapore: Tropical Reef
Research.
Baker, A.C., P.W. Glynn and B. Riegl. (2008). Climate Change and Coral Reef Bleaching: An
Ecological Assessment of Long-term Impact, Recovery Trends and Future Outlook. Estuary,
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Buddemeier, R.W., J.A. Kleypas and R.B. Aronson. (2004). Coral Reefs and Global Climate Change:
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Carpenter, K.E. and V.H. Niem. (1998). FAO Species Identification Guide for Fishery Purpose. The
Living Marine Resources of The Western Central Pacific. Volume 1: Seaweeds, Corals,
Bivalves, and Gastropods. Rome: Food and Agriculture Organization of The United Nations.
Douglas, A.E. (2003). Coral Bleaching – How and Why?, Marine Pollution Bulletin 46, pp. 385 –
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Manzello, D.P., R. Berkelmans and J.C. Hendee. (2007). Coral Bleaching Indices and Thresholds for
the Florida Reef Tract, Bahamas and St. Croix, US Virgin Islands. Marine Pollution Bulletin 54, pp. 1923 – 1931.
Obura, D.O. (2005). Resilience and Climate Changes: Lessons from Coral Reefs and Bleaching in the
Western Indian Ocean. Estuarine, Coastal and Shelf Sciences 63, pp. 353 – 372.
Suharsono. (1996). Jenis-jenis Karang yang Umum Dijumpai di Perairan Indonesia. Jakarta: Proyek
Pengamatan dan Pengembangan Daerah Pantai, Pusat Pengamatan dan Pengembangan
Oseanologi – LIPI.
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Suharsono. (2004). Jenis-jenis Karang di Indonesia. Jakarta: Pusat Pengamatan Oseanografi – LIPI.
Westmacott, S., K. Teleki, S. Wells dan J. West. (2000). Pengelolaan Terumbu Karang yang Telah Memutih dan Rusak Kritis. Terjemahan oleh J.H Steffen. Cambridge, UK: International Union for Conservation of Nature and Natural Resources (IUCN).
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Right margin 2.5cm
Bottom margin 2.5cm
Appendix Photographs of Coral Bleaching in Study Sites
Banyuglugur Mercusuar
Water Intake 3 meter Water Intake 8 meter
Water Discharge 3 meter Water Discharge 8 meter
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