scholarly journals The Panglima Laot of Aceh: a case study in large-scale community-based marine management after the 2004 Indian Ocean tsunami

Oryx ◽  
2012 ◽  
Vol 46 (4) ◽  
pp. 495-500 ◽  
Author(s):  
Crispen Wilson ◽  
Matthew Linkie

AbstractDespite dating back over 400 years the relevance of traditional fisheries management in Aceh, Indonesia, still remains high. Aceh was, however, greatly affected by the December 2004 Indian Ocean tsunami that claimed an estimated 167,000 lives, including 14,000 fishermen and 59 of the 193 traditional marine leaders (Panglima Laot). This tragic loss of life was accompanied by a substantial loss of local knowledge, such as the locations of hazardous fishing grounds. In this study we describe an innovative project that sought to rebuild a post-tsunami fisheries sector by re-engaging and empowering the Panglima Laot. During April–June 2008 GPS (global positioning system) sounding devices were installed on 53 local fishing boats and hazardous fishing areas mapped based on local knowledge, and shared amongst fishermen. During July–December 2008 nearly five million GPS data points were collected, from which detailed bathymetric maps were produced and shared between fishermen and Aceh government officials. Significant project outputs included a map of fishing areas over 20,000 km2, which included three new seamounts, one of which expanded Aceh's provincial boundary by > 1.3 million ha, and a Panglima Laot decree that reduced fishing in hazardous areas of high coral density by 23.3%. Our findings have wide applicability. Locally, the introduction of GPS technology and sharing of traditional knowledge resulted in fishermen developing and implementing their own management strategies and demonstrating their ability to stay out of restricted areas. Provincially, this project provided a framework through which government agencies and academic institutions could effectively engage with local customary leaders and their fishing communities.

2019 ◽  
Author(s):  
Ryota Masaya ◽  
Anawat Suppasri ◽  
Kei Yamashita ◽  
Fumihiko Imamura ◽  
Chris Gouramanis ◽  
...  

Abstract. The 2004 Indian Ocean Tsunami and the 2011 Great East Japan earthquake and tsunami caused large-scale topographic changes in coastal areas. Whereas much research has focused on coastlines that have or had large human populations, little focus has been paid on coastlines that have little or no infrastructure. The importance of examining erosional and depositional mechanisms of tsunami events lies in the rapid reorganisation that coastlines must undertake immediately after an event. Through understanding the precursor conditions to this reorganisation is paramount to the reconstruction of the coastal environment. This study examines the locations of sediment erosion and deposition during the 2004 Indian Ocean Tsunami event on the relatively pristine Phra Thong Island, Thailand. Coupled with satellite imagery, we use numerical simulations and sediment transportation models to determine the locations of significant erosion and the areas where much of that sediment was redeposited during the tsunami inundation and backwash processes. Our modelling approach confirms that beaches on Phra Thong Island were significantly eroded by the 2004 tsunami, predominantly during the backwash phase of the first and largest wave to strike the island. Although 2004 tsunami sediment deposits are found on the island, we demonstrate that most of the sediment was deposited in the shallow coastal area, facilitating quick recovery of the beach when normal coastal processes resume.


Author(s):  
M. Ioualalen ◽  
J. Asavanant ◽  
N. Kaewbanjak ◽  
S. T. Grilli ◽  
J. T. Kirby ◽  
...  

2020 ◽  
Vol 20 (10) ◽  
pp. 2823-2841
Author(s):  
Ryota Masaya ◽  
Anawat Suppasri ◽  
Kei Yamashita ◽  
Fumihiko Imamura ◽  
Chris Gouramanis ◽  
...  

Abstract. The 2004 Indian Ocean tsunami and the 2011 Tōhoku earthquake and tsunami caused large-scale topographic changes in coastal areas. Whereas much research has focused on coastlines that have or had large human populations, little focus has been paid to coastlines that have little or no infrastructure. The importance of examining erosional and depositional mechanisms of tsunami events lies in the rapid reorganization that coastlines must undertake immediately after an event. A thorough understanding of the pre-event conditions is paramount to understanding the natural reconstruction of the coastal environment. This study examines the location of sediment erosion and deposition during the 2004 Indian Ocean tsunami event on the relatively pristine Phra Thong Island, Thailand. Coupled with satellite imagery, we use numerical simulations and sediment transportation models to determine the locations of significant erosion and the areas where much of that sediment was redeposited during the tsunami inundation and backwash processes. Our modeling approach suggests that beaches located in two regions on Phra Thong Island were significantly eroded by the 2004 tsunami, predominantly during the backwash phase of the first and largest wave to strike the island. Although 2004 tsunami deposits are found on the island, we demonstrate that most of the sediment was deposited in the shallow coastal area, facilitating quick recovery of the beach when normal coastal processes resumed.


2010 ◽  
Vol 04 (02) ◽  
pp. 135-143 ◽  
Author(s):  
MAHMOOD RIYAZ ◽  
KYUNG-HO PARK

This study deals with the "safer island concept" implemented for the reconstruction and rehabilitation works after the 26 December 2004 Indian Ocean Tsunami in the Maldives. The safer island concept has been developed as an important adaptation strategy for tsunamis as well as the sea-level rise due to climate change. Reconstruction work in Dhuvaafaru Island to rehabilitate the entire population of Kandholhudhoo Island of Raa atoll is chosen as a case study. The appropriateness of the functionality of the redesigned island to provide security and safety for the island communities is evaluated using the digital elevation model. The study results show that the design enhanced mitigation measures of the island might show some resilience for less frequent natural disasters such as smaller tsunamis, while the implementation of the concept may create greater vulnerability for more frequent disasters, such as flash floods and storms. An integrated approach with appropriate risk assessment of floods, storms, and other physical aspects of the island is recommended for the future development of the safer island concept.


Nature ◽  
2008 ◽  
Vol 455 (7217) ◽  
pp. 1228-1231 ◽  
Author(s):  
Kruawun Jankaew ◽  
Brian F. Atwater ◽  
Yuki Sawai ◽  
Montri Choowong ◽  
Thasinee Charoentitirat ◽  
...  

2006 ◽  
Vol 15 (1) ◽  
pp. 163-177 ◽  
Author(s):  
Havidan Rodriguez ◽  
Tricia Wachtendorf ◽  
James Kendra ◽  
Joseph Trainor

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