Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. The net used for trawling is called a trawl. This principle requires netting bags which are towed through water to catch different species of fishes or sometimes targeted species. Trawls are often called towed gear or dragged gear.
The orange roughy, also known as the red roughy, slimehead and deep sea perch, is a relatively large deep-sea fish belonging to the slimehead family (Trachichthyidae). The UK Marine Conservation Society has categorized orange roughy as "vulnerable to exploitation". It is found in 3 to 9 °C, deep waters of the Western Pacific Ocean, eastern Atlantic Ocean, Indo-Pacific, and in the eastern Pacific off Chile. The orange roughy is notable for its extraordinary lifespan, attaining over 200 years. It is important to commercial deep-trawl fisheries. The fish is a bright, brick-red color, fading to a yellowish-orange after death.
Bottom trawling is trawling along the seafloor. It is also referred to as "dragging". The scientific community divides bottom trawling into benthic trawling and demersal trawling. Benthic trawling is towing a net at the very bottom of the ocean and demersal trawling is towing a net just above the benthic zone. Bottom trawling can be contrasted with midwater trawling, where a net is towed higher in the water column. Midwater trawling catches pelagic fish such as anchovies and mackerel, whereas bottom trawling targets both bottom-living fish (groundfish) and semi-pelagic species such as cod, squid, shrimp, and rockfish.
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.
Unsustainable fishing methods refers to the utilization of the various fishing methods in order to capture or harvest fish at a rate which sees the declining of fish populations over time. These methods are observed to facilitate the destructive fishing practices that destroy ecosystems within the ocean, and is used as a tool for over-fishing which results in the depletion of fish populations at a rate that cannot be sustained.
Ocean Conservancy is a nonprofit environmental advocacy group based in Washington, D.C., United States. For over 50 years, Ocean Conservancy seeks to promote healthy and diverse ocean ecosystems, prevent marine pollution, climate change and advocates against practices that threaten oceanic and human life.
Marine conservation activism is the efforts of non-governmental organizations and individuals to bring about social and political change in the area of marine conservation. Marine conservation is properly conceived as a set of management strategies for the protection and preservation of ecosystems in oceans and seas. Activists raise public awareness and support for conservation, while pushing governments and corporations to practice sound ocean management, create conservation policy, and enforce existing laws and policy through effective regulation. There are many different kinds of organizations and agencies that work toward these common goals. They all are a part of the growing movement that is ocean conservation. These organizations fight for many causes including stopping pollution, overfishing, whaling and by-catching, and supporting marine protected areas.
The environmental impact of fishing includes issues such as the availability of fish, overfishing, fisheries, and fisheries management; as well as the impact of industrial fishing on other elements of the environment, such as bycatch. These issues are part of marine conservation, and are addressed in fisheries science programs. According to a 2019 FAO report, global production of fish, crustaceans, molluscs and other aquatic animals has continued to grow and reached 172.6 million tonnes in 2017, with an increase of 4.1 percent compared with 2016. There is a growing gap between the supply of fish and demand, due in part to world population growth.
Islands First is a non-governmental organization working on behalf of the Small Island Developing States to confront the challenges of climate change, the depletion of ocean resources, and ocean level's rise.
The Sea Turtle Restoration Project (STRP), founded in 1989, is a project of Turtle Island Restoration Network (TIRN), a United States 501(c)(3) nonprofit environmental organization with a goal of protecting endangered sea turtles from human-caused threats at nesting beaches and in the ocean.
Destructive fishing practices are practices that easily result in irreversible damage to aquatic habitats and ecosystems. Many fishing techniques can be destructive if used inappropriately, but some practices are particularly likely to result in irreversible damage. These practices are mostly, though not always, illegal. Where they are illegal, they are often inadequately enforced.
As with other countries, New Zealand’s 200 nautical miles exclusive economic zone gives its fishing industry special fishing rights. It covers 4.1 million square kilometres. This is the sixth largest zone in the world, and is fourteen times the land area of New Zealand.
Defying Ocean's End (DOE) is a global agenda for action in marine conservation compiled in a 2004 Island Press book. It is also the title of a 2003 Los Cabos (Mexico) conference, where the agenda was formulated.
Anti-whaling refers to actions taken by those who seek to end whaling in various forms, whether locally or globally in the pursuit of marine conservation. Such activism is often a response to specific conflicts with pro-whaling countries and organizations that practice commercial whaling and/or research whaling, as well as with indigenous groups engaged in subsistence whaling. Some anti-whaling factions have received criticism and legal action for extreme methods including violent direct action. The term anti-whaling may also be used to describe beliefs and activities related to these actions.
Living Oceans Society is a Canadian environmental organization that has been a leader in the effort to protect Canada's oceans since 1998. It is based in Sointula, British Columbia, with a satellite office in Vancouver, British Columbia. Living Oceans Society's vision states that: Canada's oceans are sustainably managed and thriving with abundant sea life that supports vibrant and resilient communities.
Marine Conservation Institute is a tax-exempt nonprofit ocean conservation organization working to identify and protect vulnerable ocean ecosystems worldwide. The organization is headquartered in Seattle, Washington with offices in Washington D.C. and Glen Ellen, California.
Frank R. Lautenberg Deep-Sea Coral Protection Area is an offshore marine protected area for deep-sea corals off the coast of the Mid-Atlantic states of the United States.
The South African Deep-Sea Trawling Industry Association (SADSTIA) represents the trawler owners and operators active in the offshore demersal trawl fishery for hake, the most valuable of South Africa's commercial fisheries, contributing approximately 45 percent of the value of fishery production. Based in Cape Town, South Africa, SADSTIA currently has 32 members that catch, process and market the Cape hakes, Merluccius paradoxus and Merluccius capensis as well as several bycatch species.
Kristina Maria Gjerde is a High Seas Policy Advisor for the International Union for Conservation of Nature Global Marine and Polar Program. She works on the Global Ocean Biodiversity Initiative and won the 2018 Boat International Visionary Ocean Award. Gjerde currently lives in the greater Boston area.
