Part A of this report examines the full range of regional environmental and resource management organizations in the Western Indian Ocean, outlining their competences and main areas of operation. It then looks at the range of environmental and resource management projects which are being, or have recently been, funded in the region, assessing their key objectives and outputs.
Reefs at Risk Revisited brings together data on the world’s coral reefs in a global analysis designed to quantify threats and to map where reefs are at greatest risk of degradation or loss. We incorporated more than 50 data sources into the analysis—including data on bathymetry (ocean depth), land cover, population distribution and growth rate, observations of coral bleaching, and location of human infrastructure.
The overall objective of this project is to develop specific spatial data products at regional scale, for the coastal and/or marine areas of all the western Indian Ocean countries, including South Africa, Mozambique, Tanzania, Kenya, Somalia, Comoros, Seychelles, Madagascar, Mauritius and France. This report summarizes the data products, which have been prepared, on the basis of their relevance to the Large Marine Ecosystems (LME’s). The preparation of these data products involved retrieval from various sources, spatial analysis and modelling, and scaling.
Recent revisions to the satellite-derived vertical gravity gradient (VGG) data reveal more detail of the ocean bottom and have allowed us to develop a non-linear inversion method to detect seamounts in VGG data. We approximate VGG anomalies over seamounts as sums of individual, partially overlapping, elliptical polynomial functions, which allows us to form a non-linear inverse problem by fitting the polynomial model to the observations.
Restoring, maintaining and conserving the ecological integrity of the Agulhas Somali Current Large Marine Ecosystem (Figure 1) while ensuring optimal and sustainable utilization of the resources has been identified as a priority (Obura et al., 2012), especially with regard to the development of policy for the establishment of transboundary Marine Protected Areas (MPAs). This task requires knowledge of the spatial distribution of the physical and biological patterns and processes than sustain marine biodiversity in the region (Lombard et al. 2007; Sink and Attwood 2008).
The following country report begins with an overview of coastal livelihoods in Comoros, which provides a concise overview of the seven sector reports and the findings of the in-country and regional consultants. This overview ends with a conclusion which summarizes the collected information as it relates to the coastal zone in Comoros in general. This overview is followed by the more detailed sector reports, which represent the original contributions by the in-country and regional consultants.
Deteriorating quality of the coastal waters of the ASCLME region poses a significant threat to public health as well as to the health of its living marine resources and ecosystems – and thus also to the economy to which fisheries revenues, for example, contribute US$943 million annually (ASCLME). The sources of pollution which contribute to this deterioration include both land-based and marine and maritime related activities.
The following country report begins with an overview of coastal livelihoods in Comoros, which provides a concise overview of the seven sector reports and the findings of the in-country and regional consultants. This overview ends with a conclusion which summarizes the collected information as it relates to the coastal zone in Comoros in general.
Coastal resources refer to the natural resources found in coastal areas, which is useful for human today or in the coming future, these include fish, shellfish, marine mammals, seabirds and other marine organisms (seaweed, coral reefs) land, forests, coastal waters and wetlands, sand minerals, among others (Walters, 1998; Jin, 2002). These resources are crucial and important and the benefits provided by them are both widely recognized but poorly understood by the majority (Daily, 1997).