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Muck Diving
Muck diving gets its name from the sediment that lies on the bottom at many dive sites - a frequently muddy or "mucky" environment. Other than muddy sediment, the muck dive substrate may consist of dead coral skeletons, garbage and natural detritus. The visibility is usually less than on the reef or wreck sites of the area. However, the sediment and detritus environment has a different ecology to the reef, and the "muck" substrate can be the habitat for unusual, exotic and juvenile organisms that are not found in the cleaner reef sites. History The term muck diving was first used by Bob Halstead to describe diving off the beaches made up of black sand in Milne Bay, Papua New Guinea. Why people muck dive The "muck" substrate can be the habitat for unusual, exotic and juvenile organisms that make their homes in the sediment and "trash" that compose a muck dive. The sediment and detritus environment has a different ecology to the reef. Creatures like colorful nudibranchs, anglerfish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification. Sediments are most often transported by water (fluvial processes), but also wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice-transported sediments. Classification Sediment can be classified based on its grain size, grain shape, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue-ringed Octopus
Blue-ringed octopuses, comprising the genus ''Hapalochlaena'', are four highly venomous species of octopus that are found in tide pools and coral reefs in the Pacific and Indian oceans, from Japan to Australia. They can be identified by their yellowish skin and characteristic blue and black rings that change color dramatically when the animal is threatened. They eat small crustaceans, including crabs, hermit crabs, shrimp, and other small sea animals. They are one of the world's most venomous marine animals. Despite their small size——and relatively docile nature, they are very dangerous to humans if provoked when handled because their venom contains the powerful neurotoxin tetrodotoxin. The species tend to have a lifespan of approximately two to three years. This may vary depending on factors such as nutrition, temperature and the intensity of light within its habitat. Classification The genus was described by British zoologist Guy Coburn Robson in 1929. There are four co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bali
Bali () is a province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller neighbouring islands, notably Nusa Penida, Nusa Lembongan, and Nusa Ceningan to the southeast. The provincial capital, Denpasar, is the most populous city in the Lesser Sunda Islands and the second-largest, after Makassar, in Eastern Indonesia. The upland town of Ubud in Greater Denpasar is considered Bali's cultural centre. The province is Indonesia's main tourist destination, with a significant rise in tourism since the 1980s. Tourism-related business makes up 80% of its economy. Bali is the only Hindu-majority province in Indonesia, with 86.9% of the population adhering to Balinese Hinduism. It is renowned for its highly developed arts, including traditional and modern dance, sculpture, painting, leather, metalworking, and music. The Indonesian International Film Festival is held every year in Bal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manado
Manado () is the capital City status in Indonesia, city of the Indonesian Provinces of Indonesia, province of North Sulawesi. It is the second largest city in Sulawesi after Makassar, with the 2020 Census giving a population of 451,916 distributed over a land area of 162.53 km2.Badan Pusat Statistik, Jakarta, 2021. The Manado metropolitan area has a population of 1.2 million as of 2018. The city is located adjacent to the Bay of Manado, and is surrounded by a mountainous area. Manado is among Indonesia's top-five tourism priorities. The city is served by Sam Ratulangi International Airport, which has direct international flights to the Philippines, Singapore, and China, as well as many domestic destinations. Bunaken National Park is one of the city's most famous tourist attractions. The city is also known for its Christians, Christian-majority population, and holds the country's biggest Christmas celebration annually. It is also recognised as one of the most tolerant and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dauin, Negros Oriental
Dauin, officially the Municipality of Dauin ( ceb, Lungsod sa Dauin; tl, Bayan ng Dauin)is a 4th class municipality in the province of Negros Oriental, Philippines. According to the 2020 census, it has a population of 30,018 people. Geography It is bordered on the north by Bacong and Valencia, on the south by Zamboanguita, and on the west a mountain range separates it from Santa Catalina. The municipality is a coastal town, the Bohol Sea forming its eastern border. Dauin is from Dumaguete City. Barangays Dauin is politically subdivided into 23 barangays. Climate Demographics Economy Tourism Scuba diving is a principle industry in Dauin. Several marine reserves and dive sites are situated along the coast. Apo Island, which is included in the territory of Dauin, is a 72-hectare volcanic outcrop several kilometers off the coast that attracts large numbers of scuba and snorkel enthusiasts. Some of the province's most popular resorts are situated along Dauin's be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anilao, Mabini, Batangas
Mabini, officially the Municipality of Mabini ( tgl, Bayan ng Mabini), is a 1st class municipality in the province of Batangas, Philippines. According to the 2020 census, it has a population of 50,858 people. Mabini is known for its diving and snorkeling sites. It is named after Apolinario Mabini, a Filipino revolutionary hero. History Founding Legend According to legend, the first Malay settlers to inhabit the vast fertile land bordering the two bodies of water now known as Batangas Bay and Balayan Bay first found anchor along the shores of the land protruding down southwestward, known as the Calumpan Peninsula. The Malay settlers found the land fertile and agriculturally appropriate and the sea rich in marine resources, and they established their settlement in this once vast unknown land. As more Malay settlers arrived from distant lands, more settlements were founded until even the upland regions of the peninsula were settled. The inhabitants had their own form of villa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mabul
Mabul ( ms, Pulau Mabul) is a small island off the southeastern coast of Sabah in Malaysia. The island has been a fishing village since the 1970s. After the 1990s, Mabul gained popularity with scuba divers due to its proximity to Sipadan island. Located 15 kilometres from Sipadan, the island is roughly 0.2 square kilometers in size and around 2-3 meters above sea level. It is located on the northwest corner of a large reef nearly two kilometers long. Mabul island is administered as a part of Semporna, Tawau district. Native settlements The two main settlements on the island are Kampung Mabul and Kampung Musu. The 1999 census recorded approximately 2,000 villagers living in Mabul, half of them children under 14 years old. The majority are immigrants from relatively nearby clusters of islands in the southern Philippines. These residents are mainly Bajau Laut and Suluk Muslims who live a nomadic lifestyle. Basic amenities include a mosque, schools, community and fishermen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consisting of the regions that are situated south of mainland China, east of the Indian subcontinent, and north-west of mainland Australia. Southeast Asia is bordered to the north by East Asia, to the west by South Asia and the Bay of Bengal, to the east by Oceania and the Pacific Ocean, and to the south by Australia (continent), Australia and the Indian Ocean. Apart from the British Indian Ocean Territory and two out of atolls of Maldives, 26 atolls of Maldives in South Asia, Maritime Southeast Asia is the only other subregion of Asia that lies partly within the Southern Hemisphere. Mainland Southeast Asia is completely in the Northern Hemisphere. East Timor and the southern portion of Indonesia are the only parts that are south of the Equator. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seahorses
A seahorse (also written ''sea-horse'' and ''sea horse'') is any of 46 species of small marine fish in the genus ''Hippocampus''. "Hippocampus" comes from the Ancient Greek (), itself from () meaning "horse" and () meaning "sea monster" or "sea animal". Having a head and neck suggestive of a horse, seahorses also feature segmented bony armour, an upright posture and a curled prehensile tail. Along with the pipefishes and seadragons (''Phycodurus'' and ''Phyllopteryx'') they form the family Syngnathidae. Habitat Seahorses are mainly found in shallow tropical and temperate salt water throughout the world, from about 45°S to 45°N. They live in sheltered areas such as seagrass beds, estuaries, coral reefs, and mangroves. Four species are found in Pacific waters from North America to South America. In the Atlantic, ''Hippocampus erectus'' ranges from Nova Scotia to Uruguay. '' H. zosterae'', known as the dwarf seahorse, is found in the Bahamas. Colonies have been found in Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails (abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe (2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglerfish
The anglerfish are fish of the teleost order Lophiiformes (). They are bony fish named for their characteristic mode of predation, in which a modified luminescent fin ray (the esca or illicium) acts as a lure for other fish. The luminescence comes from symbiotic bacteria, which are thought to be acquired from seawater, that dwell in and around the sea. Some anglerfish are notable for extreme sexual dimorphism and sexual symbiosis of the small male with the much larger female, seen in the suborder Ceratioidei, the deep sea anglerfish. In these species, males may be several orders of magnitude smaller than females. Anglerfish occur worldwide. Some are pelagic (dwelling away from the sea floor), while others are benthic (dwelling close to the sea floor). Some live in the deep sea (such as the Ceratiidae), while others on the continental shelf, such as the frogfishes and the Lophiidae (monkfish or goosefish). Pelagic forms are most often laterally compressed, whereas the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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