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Mariculture, sometimes called marine farming or marine aquaculture, is a branch of aquaculture involving the cultivation of marine organisms for food and other animal products, in seawater. Subsets of it include, fish farms built on littoral waters, or in artificial tanks, ponds or raceways which are filled with seawater. An example of the latter is the farming of plankton and seaweed, shellfish like shrimp or oysters, and marine finfish, in saltwater ponds. Non-food products produced by mariculture include: fish meal, nutrient agar, jewellery, and cosmetics.
Shellfish, in colloquial and fisheries usage, are exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms. Although most kinds of shellfish are harvested from saltwater environments, some are found in freshwater. In addition, a few species of land crabs are eaten, for example Cardisoma guanhumi in the Caribbean. Shellfish are among the most common food allergens.
The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland, Australia, separated from the coast by a channel 160 kilometres (100 mi) wide in places and over 61 metres (200 ft) deep. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labelled it one of the Seven Natural Wonders of the World in 1997. Australian World Heritage places included it in its list in 2007. The Queensland National Trust named it a state icon of Queensland in 2006.
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
Conservation in Australia is an issue of state and federal policy. Australia is one of the most biologically diverse countries in the world, with a large portion of species endemic to Australia. Preserving this wealth of biodiversity is important for future generations. 25% of Australia is managed for conservation.
The Coral Sea is a marginal sea of the South Pacific off the northeast coast of Australia, and classified as an interim Australian bioregion. The Coral Sea extends 2,000 kilometres (1,200 mi) down the Australian northeast coast. Most of it is protected by the French Natural Park of the Coral Sea and the Australian Coral Sea Marine Park. The sea was the location for the Battle of the Coral Sea, a major confrontation during World War II between the navies of the Empire of Japan, and the United States and Australia.
Marine pollution occurs when substances used or spread by humans, such as industrial, agricultural and residential waste, particles, noise, excess carbon dioxide or invasive organisms enter the ocean and cause harmful effects there. The majority of this waste (80%) comes from land-based activity, although marine transportation significantly contributes as well. It is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean. This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide. Since most inputs come from land, either via the rivers, sewage or the atmosphere, it means that continental shelves are more vulnerable to pollution. Air pollution is also a contributing factor by carrying off iron, carbonic acid, nitrogen, silicon, sulfur, pesticides or dust particles into the ocean. The pollution often comes from nonpoint sources such as agricultural runoff, wind-blown debris, and dust. These nonpoint sources are largely due to runoff that enters the ocean through rivers, but wind-blown debris and dust can also play a role, as these pollutants can settle into waterways and oceans. Pathways of pollution include direct discharge, land runoff, ship pollution, bilge pollution, atmospheric pollution and, potentially, deep sea mining.
Marine conservation, also known as ocean conservation, is the protection and preservation of ecosystems in oceans and seas through planned management in order to prevent the over-exploitation of these marine resources. Marine conservation is informed by the study of marine plants and animal resources and ecosystem functions and is driven by response to the manifested negative effects seen in the environment such as species loss, habitat degradation and changes in ecosystem functions and focuses on limiting human-caused damage to marine ecosystems, restoring damaged marine ecosystems, and preserving vulnerable species and ecosystems of the marine life. Marine conservation is a relatively new discipline which has developed as a response to biological issues such as extinction and marine habitats change.
The Global 500 Roll of Honour was an award given from 1987 to 2003 by the United Nations Environment Programme (UNEP). The award recognized the environmental achievements of individuals and organizations around the world. A successor system of UNEP awards called Champions of the Earth started in 2005.
Jean-Michel Cousteau is a French oceanographic explorer, environmentalist, educator and film producer. The first son of ocean explorer Jacques Cousteau, he is the father of Fabien Cousteau and Céline Cousteau.
Heroes of the Environment is a list published in Time magazine. The inaugural list was published in October 2007. The 2007 list contains 43 entries, individuals or groups that have contributed substantially to the preservation of environment, and is divided into four categories: Leaders & Visionaries, Activists, Scientists & Innovators, and Moguls & Entrepreneurs.
Zalul Environmental Association is an Israeli environmental group founded in 1999 with the goal protecting the seas and rivers of Israel through conservation, activism, research, awareness-raising and education. Zalul seeks to put a stop to the spillage of sewage and other toxic waste into Israel's rivers through legal and legislative reforms.
Heroes of the Environment was an annual list of notable environmentalists chosen and compiled by Time magazine.
Aquaculture started to take off in New Zealand in the 1980s. It is dominated by mussels, oysters and salmon. In 2007, aquaculture generated about NZ$360 million in sales on an area of 7,700 hectares. $240 million was earned in exports.
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.
Hillary Rika Hauser is an American photojournalist and environmental activist with a focus on the oceans — underwater diving adventure, politics, and conservation. In 2009, in recognition of her ocean environmental work as it relates to underwater diving, Hauser received the NOGI Award for Distinguished Service from the Academy of Underwater Arts and Sciences. In 2013 the Academy elected Hauser as president of its board of directors.
Morris Kahn is an Israeli billionaire entrepreneur. He is the founder of Golden Pages Israel, Amdocs, the Aurec Group, Coral World and other companies. Through Coral World, he founded several marine parks around the world, including an underwater observatory in Eilat, Israel. As of March 2022, his net worth is estimated at US$1.0 billion. He received the degree of Doctor of Philosophy, Honoris Causa from the University of Haifa, 2024
Felicity Jane "Flic" Wishart was an Australian conservationist and environmental activist.
Shimrit Perkol-Finkel was an Israeli marine biologist. She researched artificial coral reefs and developed ecological concrete products, green construction and CleanTech. She was a co-founder of two companies in the field of marine ecology, and also served as the CEO of one of them, "ECOncrete". Perkol-Finkel authored over 20 scientific articles. Her work was awarded prizes by the United Nations and the European Union. In 2019 she was chosen by "Forbes" as one of the top 50 women-led Startups that are crushing tech. In the same year, the patent she developed, together with her partner Ido Sella, was chosen as one of the 100 best inventions in the world by Time magazine.
References
- 1 2 Ben-Tal, Daniel; Press, Rory (3 August 2007). "A Clear Vision". The Jerusalem Post . ProQuest 319626364.
- 1 2 "Benjmin Kahn - Heroes of the Environment". Time . October 2007. Retrieved 24 October 2007.
- ↑ Brinn, David (24 October 2007). "Israeli activist named one of Time's 'Heroes of the Environment'". israel21c.org. Retrieved 10 May 2018.
- 1 2 3 "Israeli tech chosen to kill off invasive mussel species at Hoover Dam". The Times of Israel. 14 September 2017. Retrieved 26 April 2018.
- ↑ Rinat, Zafrir (8 June 2008). "Gideon Ezra and Greens Exchange Potshots Over Kishon Stream". Haaretz . Retrieved 26 April 2018.
- ↑ Shamah, David (16 February 2013). "Israeli water tech draws new European investment". The Times of Israel . Retrieved 26 April 2018.
- ↑ Bloomberg: Benjamin Kahn