This large work on sea slugs of the Western Indian Ocean is a major contribution to our knowledge of opisthobranch diversity and biogeography.ÿ The western Indian Ocean has long been known as a distinct biogeographical region, and reports of opisthobranchs from the province have been sporadic.ÿ Despite nearly 200 years of study, recent work estimates that there are more than 1000 undescribed species in the whole of the Indo-Pacific region.ÿ There have been considerable developments in the study of many taxonomic groups for the area in the last 50 years, including opisthobranchs, and this paper describes 70 species, of which ten species are recorded from the western Indian Ocean for the first time.ÿ Many phyllidiids and chromodorids seem to have a distribution limited to the western Indian Ocean, whilst there seem to be differences in species richness between coastal areas and island groups.ÿ Further work will shed light on many of these issues.

An up-to-date, detailed, and fully-illustrated account of the biodiversity and status of coral reefs.

Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.

The seventh edition of the most thorough, accurate and frequently updated guidebook to Zanzibar, Pemba and Mafia.

Protection and sound management of coastal and marine areas are acknowledged as important mechanisms for alleviating poverty in the developing tropics. Tanzania has had considerable practical experience with a diversity of models that rely on private sector partnerships, community co-management regimes, and government-led initiatives for marine protection. 'Blueprint 2050' outlines a vision of what a protected area system could look like in 50 years. It draws on state-of-the-art ecosystem, socioeconomic, financial, and institutional background studies to paint a picture that emphasizes community-based adaptive co-management within a flexible system of eight protected area networks, one of which is the Exclusive Economic Zone. 'Blueprint 2050 is an impressive piece of professional work which addresses the plight of the many communities whose livelihoods depend on Tanzania's marine resources. Environmental conservation, sustainability, efficiency, good governance, and a pro-poor policy stance come out as key issues in pursuit of Tanzania's millennium development goals by these communities.' -- Hon Raphael OS Mollel, Senior Permanent Secretary Vice President's Office, United Republic of Tanzania 'It is my sincere hope that Blueprint 2050 will serve the intended purpose of promoting the devlopment of marine protected areas based on our current policies and legislation.' -- Hon Madam Rahma M Mshangama, Principal Secretary Ministry of Agriculture Natural Resources, Environment and Co-operatives (MANREC), Zanzibar