The Philippine Sea is a marginal sea of the Western Pacific Ocean east of the Philippine Archipelago and the largest sea in the world, occupying an estimated surface area of 5 million square kilometers. The Philippine Sea Plate forms the floor of the sea. Its western border is the first island chain to the west, comprising the Ryukyu Islands in the northwest and Taiwan in the west. Its southwestern border comprises the Philippine islands of Luzon, Catanduanes, Samar, Leyte, and Mindanao. Its northern border comprises the Japanese islands of Honshu, Shikoku and Kyūshū. Its eastern border is the second island chain to the east, comprising the Bonin Islands and Iwo Jima in the northeast, the Mariana Islands in the due east, and Halmahera, Palau, Yap and Ulithi in the southeast. Its southern border is Indonesia's Morotai Island.
The Celebes Sea or Sulawesi Sea of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by the Sangihe Islands chain, on the south by Sulawesi's Minahasa Peninsula, and the west by northern Kalimantan in Indonesia. It extends 420 miles (675 km) north-south by 520 mi (840 km) east-west and has a total surface area of 110,000 square miles (280,000 km2), to a maximum depth of 20,300 feet (6,200 m). South of the Cape Mangkalihat, the sea opens southwest through the Makassar Strait into the Java Sea.
Manado is the capital city of the Indonesian province of North Sulawesi. It is the second largest city in Sulawesi after Makassar, with the 2020 census giving a population of 451,916, and the official estimates for mid 2023 showing 458,582 inhabitants, distributed over a land area of 157.26 km2. The Manado metropolitan area had a population of 1,377,815 as of mid 2023. The city is situated on the Bay of Manado, and is surrounded by a mountainous area.
Bunaken is an island of 8 km2, part of the Bunaken National Marine Park. Bunaken is located at the northern tip of the island of Sulawesi, Indonesia. It belongs administratively to the municipality of Manado. Scuba diving attracts many visitors to the island.
Southeast Asian coral reefs have the highest levels of biodiversity for the world's marine ecosystems. They serve many functions, such as forming the livelihood for subsistence fishermen and even function as jewelry and construction materials. Corals inhabit coastal waters off of every continent except Antarctica, with an abundance of reefs residing along Southeast Asian coastline in several countries including Indonesia, the Philippines, and Thailand. Coral reefs are developed by the carbonate-based skeletons of a variety of animals and algae. Slowly and over time, the reefs build up to the surface in oceans. Coral reefs are found in shallow, warm salt water. The sunlight filters through clear water and allows microscopic organisms to live and reproduce. Coral reefs are actually composed of tiny, fragile animals known as coral polyps. Coral reefs are significantly important because of the biodiversity. Although the number of fish are decreasing, the remaining coral reefs contain more unique sea creatures. The variety of species living on a coral reef is greater than anywhere else in the world. An estimation of 70-90% of fish caught are dependent on coral reefs in Southeast Asia and reefs support over 25% of all known marine species.
The Laccadive Sea, also known as the Lakshadweep Sea, is a body of water bordering India, the Maldives, and Sri Lanka. It is located to the southwest of Karnataka, to the west of Kerala and to the south of Tamil Nadu. This warm sea has a stable water temperature through the year and is rich in marine life, the Gulf of Mannar alone hosting about 3,600 species. Mangaluru, Kasaragod, Kannur, Kozhikode, Ponnani, Kochi, Alappuzha, Kollam, Thiruvananthapuram, Tuticorin, Colombo, and Malé are the major cities on the shore of the Laccadive Sea. Kanyakumari, the southernmost tip of peninsular India, also borders this sea.
Blast fishing, fish bombing, dynamite fishing or grenade fishing is a destructive fishing practice using explosives to stun or kill schools of fish for easy collection. This often illegal practice is extremely destructive to the surrounding ecosystem, as the explosion often destroys the underlying habitat that supports the fish. The frequently improvised nature of the explosives used, and undetonated charges, means danger for fishermen and divers as well, with accidents and injuries.
Marine National Park in the Gulf of Kutch is situated on the southern shore of the Gulf of Kutch in the Devbhumi Dwarka district of Gujarat state, India. In 1980, an area of 270 km2 from Okha to Jodiya was declared Marine Sanctuary. Later, in 1982, a core area of 110 km2 was declared Marine National Park under the provisions of the Wildlife (protection) Act, 1972 of India. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The best-known island is Pirotan. The park protects two major ecosystems, corals and mangroves.
Weh Island is a small active volcanic island to the northwest of Sumatra in Indonesia, also known as Sabang after the city situated on the northeast end of the island, whose area of 122.13 square kilometres (47.15 sq mi) includes the whole island as well as several offshore islets. It had a population of 43,527 at the official mid-2023 estimate. It is 45 minutes by fast regular ship or 2 hours by ferry from the mainland port of Banda Aceh. It was originally connected to the Sumatran mainland and became separated by sea after the stratovolcano's last eruption in the Pleistocene era. The island is situated in the Andaman Sea.
Hol Chan Marine Reserve is a marine reserve close to Ambergris Caye and Caye Caulker, off the coast of Belize. It covers approximately 18 km² (4,448 acres) of coral reefs, seagrass beds, and mangrove forest. Hol Chan is Mayan for "little channel".
The Coral Triangle (CT) is a roughly triangular area in the tropical waters around the Philippines, Indonesia, Malaysia, Papua New Guinea, the Solomon Islands and Timor-Leste. This area contains at least 500 species of reef-building corals in each ecoregion. The Coral Triangle is located between the Pacific and Indian oceans and encompasses portions of two biogeographic regions: the Indonesian-Philippines Region, and the Far Southwestern Pacific Region. As one of eight major coral reef zones in the world, the Coral Triangle is recognized as a global centre of marine biodiversity and a global priority for conservation. Its biological resources make it a global hotspot of marine biodiversity. Known as the "Amazon of the seas", it covers 5.7 million square kilometres (2,200,000 sq mi) of ocean waters. It contains more than 76% of the world's shallow-water reef-building coral species, 37% of its reef fish species, 50% of its razor clam species, six out of seven of the world's sea turtle species, and the world's largest mangrove forest. In 2014, the Asian Development Bank (ADB) reported that the gross domestic product of the marine ecosystem in the Coral Triangle is roughly $1.2 trillion per year and provides food to over 120 million people. According to the Coral Triangle Knowledge Network, the region annually brings in about $3 billion in foreign exchange income from fisheries exports, and another $3 billion from coastal tourism revenues.
The longnose hawkfish is a species of marine ray-finned fish, a hawkfish belonging to the family Cirrhitidae. It is found on tropical reefs of the Indian Ocean and the Pacific Ocean, where it can be found at depths around 10 to 100 m. It prefers the steep outer slopes of the reefs amongst gorgonians and black corals. This species can reach 13 cm (5.1 in) in total length. It can also be found in the aquarium trade. It is currently the only known member in its genus.
Nusa Lembongan is an island located southeast of Bali, Indonesia. It is part of a group of three islands that make up the Nusa Penida district, of which it is the most famous of the three islands of Nusa Penida, Nusa Lembongan, and Nusa Ceningan - known together as the "Nusa Islands". This island group, in turn, is part of the Lesser Sunda Islands.
Karimunjawa National Park, also Crimon Java National Park, is a national marine park designated in the Karimun Java archipelago, Jepara Regency, Central Java, Indonesia. It lies 80 km north west of Jepara, Central Java in the Java Sea. The national park was formally declared as Marine Protection Area in 2001. Based on popular local myth, this archipelago was discovered by Sunan Nyamplungan, the nephew of Sunan Kudus who is one of the Wali Sanga.
Wakatobi National Park is a marine national park in Southeast Sulawesi, Indonesia. It was established in 2002. The name of Wakatobi is a portmanteau of the four main Tukangbesi Islands: Wangi-wangi, Kaledupa, Tomia, and Binongko. Since 2005 the park is listed as a tentative World Heritage Site.
Human activities have substantial impact on coral reefs, contributing to their worldwide decline. Damaging activities encompass coral mining, pollution, overfishing, blast fishing, as well as the excavation of canals and access points to islands and bays. Additional threats comprise disease, destructive fishing practices, and the warming of oceans.[2] Furthermore, the ocean's function as a carbon dioxide sink, alterations in the atmosphere, ultraviolet light, ocean acidification, viral infections, the repercussions of dust storms transporting agents to distant reefs, pollutants, and algal blooms represent some of the factors exerting influence on coral reefs. Importantly, the jeopardy faced by coral reefs extends far beyond coastal regions. The ramifications of climate change, notably global warming, induce an elevation in ocean temperatures that triggers coral bleaching—a potentially lethal phenomenon for coral ecosystems.
Recreational dive sites are specific places that recreational scuba divers go to enjoy the underwater environment or for training purposes. They include technical diving sites beyond the range generally accepted for recreational diving. In this context all diving done for recreational purposes is included. Professional diving tends to be done where the job is, and with the exception of diver training and leading groups of recreational divers, does not generally occur at specific sites chosen for their easy access, pleasant conditions or interesting features.
Bangka Island is a small island located off the northeastern tip of Sulawesi, Indonesia. Bangka is known for its unspoiled beaches and dive tourism. It belongs administratively to the district of East Likupang in the North Minahasa regency, North Sulawesi province. The island has three main coastal villages: Lihunu, Kahuku, and Libas. Controversy exists over a Chinese company's development of an iron ore mining facility on the island, as the company's permits were revoked by Indonesian courts.
The Coral Triangle Initiative on Coral Reefs, Fisheries, and Food Security (CTI-CFF), or the Coral Triangle Initiative (CTI), is a multilateral collaborative partnership among six countries. Partners work together to sustain living marine and coastal resources by addressing crucial issues such as food security, climate change, and marine biodiversity.
The East African coral coast is a marine ecoregion along the eastern coast of Africa. It extends along the coasts of Kenya, Tanzania, and northern Mozambique, from Lamu in Kenya to Angoche in Mozambique. It adjoins the Northern Monsoon Current Coast ecoregion to the north, and the Bight of Sofala/Swamp Coast ecoregion to the south.
