coastal and marine environments in bahrain: … · coastal and marine environments in bahrain:...
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COASTAL AND MARINE ENVIRONMENTS IN BAHRAIN: ANTHROPOGENIC IMPACTS AND CONSERVATION
MEASURES
Dr. Humood Naser Department of Biology, College of Science, University of Bahrain
Littoral 2012:Coasts for Tomorrow 27-29 November, 2012, Belgium
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Outline
• Valued ecosystem components in Bahrain.
• Existing anthropogenic impacts in Bahrain.
• Measures that may contribute to protection of coastal and marine habitats in Bahrain.
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Arabian Gulf
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Saudi Arabia Arabian Gulf
Oman
UAE
Iran
Bahrain
Qatar
Kuwait
Saudi Arabia
Kuwait
Saudi Arabia
Kuwait
Bahrain
Saudi Arabia
Kuwait
Bahrain
Saudi Arabia
Kuwait
Arabian Gulf
Bahrain
Saudi Arabia
Kuwait Iran
Arabian Gulf
Bahrain
Saudi Arabia
Kuwait
UAE
Iran
Arabian Gulf
Bahrain
Saudi Arabia
Kuwait
Oman
UAE
Iran
Arabian Gulf
Bahrain
Saudi Arabia
Kuwait
Oman
UAE
Iran
Arabian Gulf
Bahrain
Saudi Arabia
Kuwait
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Bahrain: 40 islands Land area: 762 km2 Coastlines: 126 Km Marine area: 8000 km2
Bahrain
Hawar Islands
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Physical Characteristics of the Arabian Gulf
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Fluctuations in seawater temperatures (15 – 35 oC)
© Van Lavieren et al. (2011). Managing the growing impacts of development on fragile coastal and marine ecosystems: Lessons from the Gulf. UNU-INWEH, Hamilton, ON, Canada.
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Fluctuations in seawater temperatures (15 – 35 oC)
© Van Lavieren et al. (2011). Managing the growing impacts of development on fragile coastal and marine ecosystems: Lessons from the Gulf. UNU-INWEH, Hamilton, ON, Canada.
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© Allsop & Yao (2010).
High levels of salinity (43-45 psu) Lagoons (70 - 80 psu)
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© Uddin et al. (2012). Acidification in Arabian Gulf – Insights from pH and temperature measurements. Journal of Environmental Monitoring ,14: 1479-1482.
pH: Jan 2007-Dec 2010 (Kuwait)
Temp.: Jan 2007-Dec 2010 (Kuwait)
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Valued ecosystem components in Bahrain
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Seagrass beds
High Productivity, Nursery grounds, Feeding areas (turtles and dugongs)
Al-Wedaei, Naser, Al-Sayed & Khamis (2011). Assemblages of macro-fauna associated with two seagrass beds in Kingdom of Bahrain: Implications for conservation. Journal of the Association of
Arab Universities for Basic and Applied Sciences, 10:1-7.
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Halodule uninervis
Halophila ovalis Halophila stipulacea
Three seagrass species in
Bahrain
Al-Wedaei, Naser, Al-Sayed & Khamis (2011). Assemblages of macro-fauna associated with two seagrass beds in Kingdom of Bahrain: Implications for conservation. Journal of the Association of
Arab Universities for Basic and Applied Sciences, 10:1-7.
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Al-Wedaei, Naser, Al-Sayed & Khamis (2011). Assemblages of macro-fauna associated with two seagrass beds in Kingdom of Bahrain: Implications for conservation. Journal of the Association of
Arab Universities for Basic and Applied Sciences, 10:1-7.
Anthropogenic activities contribute directly or indirectly to the loss of seagrass beds due to direct physical removal and burial, and the increase in turbidity levels.
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Coral reefs © BNR-COB
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© Van Lavieren et al. (2011). Managing the growing impacts of development on fragile coastal and marine ecosystems: Lessons from the Gulf. UNU-INWEH, Hamilton, ON, Canada.
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© GEOMATIC
Renewable sources of seafood, maintenance of genetic, biological and habitat diversity, and recreational values.
Naser, H. (2012). Coral reefs in Bahrain: anthropogenic threats and conservation. Coral Reefs of the Gulf Conference. New York University Abu Dhabi Institute. Abu Dhabi, 17-19 January 2012.
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© GEOMATIC
Impacts on coral reefs: natural stresses such high levels of temperature and salinity, bleaching events (1998, 37- 39 oC); and sediment runoff from dredging and reclamation
activities and the increasing levels of domestic, and industrial pollution.
Naser, H. (2012). Coral reefs in Bahrain: anthropogenic threats and conservation. Coral Reefs of the Gulf Conference. New York University Abu Dhabi Institute. Abu Dhabi, 17-19 January 2012.
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© Sheppard et al. (2010). The Gulf: A young sea in decline. Marine Pollution Bulletin 60: 3-38.
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Muddy and Sandy flats
High productivity, benthos diversity, feeding grounds for birds
Al-Sayed, Naser, Al-Wedaei, (2008). Observations on macrobenthic invertebrates and wader bird assemblages in a protected marine mudflat in Bahrain. Aquatic Ecosystem Health and
Management, 11(4): 450-456.
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Mangrove swamps Avicennia marina
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Provide food, shelter and nursery areas for a variety of terrestrial and marine fauna
Naser & Hoad (2011). An investigation of salinity tolerance and salt secretion in protected mangroves. Proceeding of Gulf II: The state of the Gulf ecosystem: functioning & services. Kuwait,
7-9 February 2011.
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Due to reclamation, mangroves are currently limited to sheltered areas in Tubli Bay
Naser & Hoad (2011). An investigation of salinity tolerance and salt secretion in protected mangroves. Proceeding of Gulf II: The state of the Gulf ecosystem: functioning & services. Kuwait,
7-9 February 2011.
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Anthropogenic impacts affecting coastal and marine environments in
Bahrain
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© Halpern et al. (2008). A global map of human impact on marine ecosystems.
Science, 319: 948-952.
The Arabian is considered among the highest anthropogenically impacted regions in the world
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Reclamation and dredging activities
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Presently, reclamation activities have resulted in adding 91 km2 representing an increase of 11% of the total land area.
Naser, H. (2011). Effects of reclamation on macrobenthic assemblages in the coastline of the Arabian Gulf: A microcosm experimental approach. Marine Pollution Bulletin, 62: 520-524.
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© Zainal et al. (2012). The cumulative impacts of reclamation and dredging on the marine ecology and land-use in the Kingdom of Bahrain. Marine Pollution Bulletin, 64: 1452-1458.
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October 2002 May 2010
© Google Earth
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May 2004 September 2009
© Google Earth
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2012
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Coastal environment will continue to be the major focus for developmental projects
Bahrain National Land Use Strategy 2030
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Effluents from desalination plants
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Wastewater discharges from desalination plants are associated with high temperatures, salinities, and a range of chemical and heavy metal pollutants
Naser, H. (2012). Effects of multi-stage and reverse osmosis desalinations on benthic assemblages in Bahrain, Arabian Gulf. Under submission.
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Reduced levels of biodiversity and abundance were recorded in stations adjacent to outlets of desalination plants reflecting severe impacts on
macrobenthic assemblages.
Naser, H. (2012). Effects of multi-stage and reverse osmosis desalinations on benthic assemblages in Bahrain, Arabian Gulf. Under submission.
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Naser, H. (2012). Effects of multi-stage and reverse osmosis desalinations on benthic assemblages in Bahrain, Arabian Gulf. Under submission.
Multi-Stage Flashing (MSF) VS brackish water Reverse Osmosis (RO) technologies
MSF RO MSF RO MSF RO
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Industrial and other land-based activities in Bahrain
Naser, H. (2012). Metal concentrations in marine sediments influenced by anthropogenic activities in Bahrain, Arabian Gulf. In: Metal contaminations: sources, detection and environmental
impacts, Shao Hong-Bo (Editor), NOVA Science Publishers, Inc. New York, pp. 157-175.
Oil refinery, aluminum and petrochemical industries produce effluents associated with hydrocarbons, ammonia, phenols, phosphorous and heavy metals
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Macrobenthos were severely affected by hydrocarbons and heavy metals from the main oil refinery in Bahrain
Naser, H. (2010) Testing taxonomic resolution levels for detecting environmental impacts using macrobenthic assemblages in tropical waters. Environmental Monitoring & Assessment.
170: 435-444.
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Sewage discharges
Reduced biodiversity and abundance of macrobenthos were recorded near the outlet of the major sewage treatment plant in Bahrain; some stations were devoid of
macrobenthos reflecting severe sewage pollution. Naser, H. (2010) Testing taxonomic resolution levels for detecting environmental impacts using
macrobenthic assemblages in tropical waters. Environmental Monitoring & Assessment. 170: 435-444.
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Measures that may contribute to protection of coastal and marine habitats in Bahrain
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© BNR-COB
Marine protected areas
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Protected area Ecological importance
Hawar Islands seagrass beds, algal mats, dugongs, turtles and dolphins. Largest breeding colonies of the endemic Socotra Cormorants: 200,000 individuals
Tubli Bay sheltered lagoon, last remaining mangrove, ecosystems in Bahrain, breeding birds.
Mashtan Island Offshore island, seagrass and algal mats, dugongs and turtles.
Duwhat Arad Tidal mudflat, feeding ground for important shorebird populations.
Fasht bulthama Small reef characterized by relatively high levels of diversity and cover (> 50 %)
Naser, H. (2011). Human impacts on marine biodiversity: macrobenthos in Bahrain, Arabian Gulf. In: The importance of biological interactions in the study of Biodiversity,
J. Lopez-Pujol (ed.), InTech Publishing. pp. 109-126.
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Al-Areen
Fasht bulthama
Al-Areen
Fasht bulthama
Marine protected areas in Bahrain
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Environmental Impact Assessment
• EIA was adopted in Bahrain in 1998 to protect the environment and to reduce environmental degradation associated with major developmental projects.
• Most of developmental projects in Bahrain are related to the coastal and marine environments.
Naser, H. (2012). Evaluation of the environmental impact assessment system in Bahrain. Journal of Environmental Protection.3 (2): 233-239.
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• Some shortcomings in EIA reports, including limited ecological surveys, inadequate evaluation of impacts, neglecting cumulative and long-terms impacts, and failing to address adequately mitigation and monitoring measures.
Environmental Impact Assessment
Naser, H., Bythell, J., Thomason, J. (2008). Ecological assessment: an initial evaluation of ecological input in environmental impact assessment reports in Bahrain.
Impact Assessment and Project Appraisal, 26 (3): 201-208.
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• National, regional and international laws and agreements:
• Environmental law, regulation of fishing, protection of wildlife, environmental quality standards for wastewater effluents, declarations of protected areas, and banning of catching endangered species, etc.
• Further enforcement is required.
Legal instruments and higher environmental policies
Naser, H. (2011). Human impacts on marine biodiversity: macrobenthos in Bahrain, Arabian Gulf. In: The importance of biological interactions in the study of Biodiversity,
J. Lopez-Pujol (ed.), InTech Publishing. pp. 109-126.
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• Regional and international conventions: Convention on Biological Diversity, Ramsar convention, UN Framework Convention on Climate Change, and Kuwait Regional Convention for Cooperation on the Protection of the Marine Environment from Pollution.
Legal instruments and higher environmental policies
Naser, H. (2011). Human impacts on marine biodiversity: macrobenthos in Bahrain, Arabian Gulf. In: The importance of biological interactions in the study of Biodiversity,
J. Lopez-Pujol (ed.), InTech Publishing. pp. 109-126.
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• Bahrain launched the National Environmental Strategy in 2006 (NES), which indentifies mechanisms by which principles of sustainable development can be implemented.
• Action plans for implementation and enforcement are required.
Naser, H. (2011). Human impacts on marine biodiversity: macrobenthos in Bahrain, Arabian Gulf. In: The importance of biological interactions in the study of Biodiversity,
J. Lopez-Pujol (ed.), InTech Publishing. pp. 109-126.
Legal instruments and higher environmental policies
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Environmental monitoring and scientific research
• Holistic monitoring for the biological, chemical and physical aspects of the marine environment is required.
• Identifying and describing species are required to assess the biodiversity and to understand the structure and function of marine organisms.
Naser, H. (2011). Human impacts on marine biodiversity: macrobenthos in Bahrain, Arabian Gulf. In: The importance of biological interactions in the study of Biodiversity,
J. Lopez-Pujol (ed.), InTech Publishing. pp. 109-126.
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Limitation in taxonomic keys and guidelines
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Thank you