Spearfishing is fishing using handheld elongated, sharp-pointed tools such as a spear, gig, or harpoon, to impaling the fish in the body. It was one of the earliest fishing techniques used by mankind, and has been deployed in artisanal fishing throughout the world for millennia. Early civilizations were familiar with the custom of spearing fish from rivers and streams using sharpened sticks.
Diving activities are the things people do while diving underwater. People may dive for various reasons, both personal and professional. While a newly qualified recreational diver may dive purely for the experience of diving, most divers have some additional reason for being underwater. Recreational diving is purely for enjoyment and has several specialisations and technical disciplines to provide more scope for varied activities for which specialist training can be offered, such as cave diving, wreck diving, ice diving and deep diving. Several underwater sports are available for exercise and competition.
Pearl hunting, also known as pearling, is the activity of recovering or attempting to recover pearls from wild molluscs, usually oysters or mussels, in the sea or freshwater. Pearl hunting was prevalent in the Persian Gulf region and Japan for thousands of years. On the northern and north-western coast of Western Australia pearl diving began in the 1850s, and started in the Torres Strait Islands in the 1860s, where the term also covers diving for nacre or mother of pearl found in what were known as pearl shells.
Rodney Winston Fox is an Australian film maker, conservationist, survivor of an attack by a great white shark, and one of the world's foremost authorities on that species. He was inducted into the International Scuba Diving Hall of Fame in 2007. He was born in Adelaide.
The 1992 cageless shark-diving expedition was the world's first recorded intentionally cageless dive with great white sharks, contributing to a change in public opinions about the supposed ferocity of these animals.
Ron Josiah Taylor, AM was a prominent Australian shark expert, as is his widow, Valerie Taylor. They were credited with being pioneers in several areas, including being the first people to film great white sharks without the protection of a cage. Their expertise has been called upon for films such as Jaws, Orca and Sky Pirates.
Shark tourism is a form of eco-tourism that allows people to dive with sharks in their natural environment. This benefits local shark populations by educating tourists and through funds raised by the shark tourism industry. Communities that previously relied on shark finning to make their livelihoods are able to make a larger profit from diving tours while protecting the local environment. People can get close to the sharks by free- or scuba diving or by entering the water in a protective cage for more aggressive species. Many of these dives are done by private companies and are often baited to ensure shark sightings, a practice which is highly controversial and under review in many areas.
The Maldives, officially the Republic of Maldives, is a small archipelagic state in South Asia. It lies in the Indian Ocean southwest of Sri Lanka and India, about 700 kilometres (430 mi) from the Asian continent's mainland. The chain of 26 atolls stretches across the Equator from Ihavandhippolhu Atoll in the north to Addu Atoll in the south. The land area is roughly 298 square kilometres. Malé is the capital.
Bob Halstead, has made significant contributions to the sport of scuba diving in a multitude of capacities: photographer, author of eight diving books, early innovator in the development of dive tourism, pioneer in the dive liveaboard industry, diving instructor and educator, marine-life explorer and influential diving industry commentator. An ardent diver since 1968, Halstead has over 10,000 logged dives.
A total of 24 people have been killed by sharks in South Australian waters since the establishment of the colony in 1836. Prior to 2014, there had been 82 recorded shark attacks in South Australia. 20 of those have involved a single fatality. Victims were involved in a range of aquatic activities, including surfing, diving, spear-fishing, snorkeling, boating and swimming. Six of the fatalities occurred off the coast of greater metropolitan Adelaide, with the remainder distributed across South Australia's extensive coastline. Many of the fatal attacks have been attributed to great white sharks.
Blue Water, White Death is a 1971 American documentary film about sharks, which was directed by Peter Gimbel and James Lipscomb. It received favourable reviews and was described as a "well produced odyssey" and "exciting and often beautiful". It screened theatrically and was broadcast on television at various times during the 1970s and 1980s. The film was re-released on DVD in 2009.
Emma Forster is a South Australian television presenter, director of tourist attraction Swim with the Tuna and advisor for the company, Oceanic Victor. She lives in Port Lincoln where she has developed several properties. She has worked as a presenter on the seafood, fishing and boating television program Out of the Blue, is a friend and business advisor to multi-millionaire tuna rancher Tony Santic and is a former girlfriend of retired South Australian treasurer, Kevin Foley.
The following outline is provided as an overview of and topical guide to underwater diving:
The following index is provided as an overview of and topical guide to underwater diving:
Diving support equipment is the equipment used to facilitate a diving operation. It is either not taken into the water during the dive, such as the gas panel and compressor, or is not integral to the actual diving, being there to make the dive easier or safer, such as a surface decompression chamber. Some equipment, like a diving stage, is not easily categorised as diving or support equipment, and may be considered as either.
The environmental impact of recreational diving is the effects of recreational scuba diving on the underwater environment, which is largely the effects of diving tourism on the marine environment. It is not uncommon for highly trafficked dive destinations to have more adverse effects with visible signs of diving's negative impacts due in large part to divers who have not been trained to sufficient competence in the skills required for the local environment, an inadequate pre-dive orientation, or lack of a basic understanding of biodiversity and the delicate balance of aquatic ecosystems. There may also be indirect positive effects as the environment is recognised by the local communities to be worth more in good condition than degraded by inappropriate use, and conservation efforts get support from dive communities who promote environmental awareness, and teach low impact diving and the importance of respecting marine life. There are also global coral reef monitoring networks in place which include local volunteer divers assisting in the collection of data for scientific monitoring of coral reef systems, which may eventually have a net positive impact on the environment.
Valerie May Taylor AM is an Australian conservationist, photographer, and filmmaker, and an inaugural member of the diving hall of fame. With her husband Ron Taylor, she made documentaries about sharks, and filmed sequences for films including Jaws (1975).
Open Water 3: Cage Dive is a 2017 Australian found footage survival horror film directed and written by Gerald Rascionato and released by Lionsgate as part of the Open Water film series, although the film is a stand-alone sequel and only connects to the other films in theme, not continuity. It follows a trio of Americans on vacation in Australia who are also filming an audition tape for an extreme reality TV show on a cage diving excursion. Before they know it, a rogue wave capsizes and sinks their boat leaving them stranded in the ocean. The film is presented as a mockumentary and perpetuated as true events; though most of the film is first person footage from the characters with time stamps throughout the film, in the vein of Paranormal Activity. The film bears similarities to another 2017 shark attack survival film featuring a cage dive excursion gone wrong, 47 Meters Down. The method of "cage dive disaster" in each film differs with Open Water 3: Cage Dive involving a rogue wave capsizing the boat while the former film sees a rusty winch break, trapping the protagonists underwater within the cage. The notable difference between these two films is that Cage Dive does not keep its protagonists within the cage, but rather leaves them in the open water among hungry sharks.
An underwater survey is a survey performed in an underwater environment or conducted remotely on an underwater object or region. Survey can have several meanings. The word originates in Medieval Latin with meanings of looking over and detailed study of a subject. One meaning is the accurate measurement of a geographical region, usually with the intention of plotting the positions of features as a scale map of the region. This meaning is often used in scientific contexts, and also in civil engineering and mineral extraction. Another meaning, often used in a civil, structural, or marine engineering context, is the inspection of a structure or vessel to compare actual condition with the specified nominal condition, usually with the purpose of reporting on the actual condition and compliance with, or deviations from, the nominal condition, for quality control, damage assessment, valuation, insurance, maintenance, and similar purposes. In other contexts it can mean inspection of a region to establish presence and distribution of specified content, such as living organisms, either to establish a baseline, or to compare with a baseline.
