Coastal Environmental Profile of Sulu Sea is providing baseline information from various fields of marine science particularly marine flora and fauna within the islands and coastal areas of the Sulu Sea. This book can be used as a reference to support the development and management of Tun Mustapha Park. The authors of each chapter of this book have presented significant insights into the status of marine bio-resources and threats to marine resources. This book is also especially targeted to support the scientific database of Coral Triangle Imitative (CTI) and contribute to achieving the target stipulated in Malaysia’s National Plan of Action for CTI.