Present and future environmental impacts on the coastal zone of Berau (East Kalimantan, Indonesia), a deductive scenario analysis

Abstract

Using the drivers-pressures-state-impactresponses (DPSIR) analytical framework, local stakeholder respondents and experts were interviewed to construct and prioritize a causality network that links ecosystem state of the coastal waters of Berau (East Kalimantan, Indonesia) with societal drivers of change. Particularly on the perceived top priority drivers and pressures, consensus among respondents was considerable. The constructed network was found to be consistent with literature findings from elsewhere in SE Asia. This causality network was then confronted with a local articulation of the SRES scenarios (IPCCs Special Report on Emissions Scenarios: A1, A2, B1, B2), and four plausible trajectories of future change were deduced over a period of 20 years, until 2030. Our scenario articulations differed greatly in the projected immigration influx into the region, in local economic growth and in institutional strength of governance. Under business-asusual conditions, it is foreseen that fisheries will continue to overexploit the resource, and inland and mangrove deforestation, as well as sediment and sewage loading of the coastal waters, will increase, leading to declines in coral and seagrass extent and depleted fisheries. Scenarios with continued immigration (*A1, A2) will probably aggravate this pattern, whereas those with reduced immigration (*B1, B2) would appear to lead to considerable improvements in the state of the coastal waters of Berau.

Highly divergent mussel lineages in isolated Indonesian marine lakes

“…The islands of Samama, Kakaban, Maratua are part of the Berau Marine Protected Area that was formed in 2005 and Kakaban island with the large marine lake (Lake 1) is planned to be proposed for a UNESCO World Heritage Site ( Gunawan & Visser, 2012 ; Vermaat, Estradivari & Becking, 2012 ). The implication of our results for marine conservation is that each lake is barely connected by effective dispersal and must be viewed as unique and isolated entities.…”

Modelling Tools to Analyze and Assess the Ecological Impact of Hydropower Dams

“…These environmental changes lead to positive or negative 'Impacts', and the 'Response' is the action taken to solve potential environmental problems. The DPSIR framework was applied to water resources management, river basin management [41][42][43][44], river restoration [45] and biodiversity conservation [46]. In this study, we review the most relevant articles.…”

The Use of the Dspir Framework to Estimate Impacts of Urbanization on Mangroves: A Case Study From La Paz, Baja California Sur, Mexico

“…Another study used this approach to estimate anthropic impacts on the coastal ecosystems of Berau, East Kalimantan, Indonesia and identified as a pressure indicator to mangrove conversion and overexploitation [15]. In this regard, the framework was used in the assessment of the mangrove community "Enfermería" located in the Bay of La Paz, Gulf of California, Mexico [16].…”