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  2. Bottom trawling - Wikipedia

    en.wikipedia.org/wiki/Bottom_trawling

    A global analysis of the impacts of bottom trawling found that the impact on seabed biota was strongly dependent on the type of gear used, with otter trawls estimated as having the smallest impact and removing 6% of biota per pass while hydraulic dredges had the largest impact and removed 41% of biota per pass. [18]

  3. Environmental issues with coral reefs - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_with...

    Bottom trawling in deep oceans destroys cold-water and deep-sea corals. Historically, industrial fishers avoided coral because their nets would get caught on the reefs. In the 1980s, "rock-hopper" trawls attached large tires and rollers to allow the nets to roll over rough surfaces.

  4. Trawling - Wikipedia

    en.wikipedia.org/wiki/Trawling

    Newer, trial methods employing bottom trawling gear that do not touch the seabed could potentially have lower environmental impact than livestock or fed aquaculture if employed. [6] Midway trawling or pelagic trawling target fishes that are living in the upper water column of the ocean. The funnel shaped trawl nets are hauled by one or two boats.

  5. Environmental impact of fishing - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    These practices are destructive because they impact the habitat that the reef fish live on after the fish have been removed. Bottom trawling, the practice of pulling a fishing net along the sea bottom behind trawlers, removes around 5 to 25% of an area's seabed life on a single run. [12] This method of fishing tends to cause a lot of bycatch. [11]

  6. Unsustainable fishing methods - Wikipedia

    en.wikipedia.org/wiki/Unsustainable_fishing_methods

    The Australian Fisheries Management Authority (AFMA) recognizes the impact that bottom trawlers may have on sensitive habitat areas, like reef structures (AFMA, 2020). [30] As a result, management arrangements that include the compulsory use of physical devices, such as bycatch reduction devices (BRD) within trawls, ensures that the use of ...

  7. Marine habitat - Wikipedia

    en.wikipedia.org/wiki/Marine_habitat

    Bottom trawling, microplastic pollution, and industrial metals have slowly changed and altered the composition of the sea floor. Bottom trawling refers to a commercial deep sea fishing technique in which the equipment drags across the sea floor. [77] This has had an adverse effect on the seafloor as it changes the surface structure and composition.

  8. Marine geology - Wikipedia

    en.wikipedia.org/wiki/Marine_geology

    Bottom trawling also poses a detrimental effects to the sea and using marine geology techniques can be helpful at mitigating them. [65] Bottom trawling, generally a commercial fishing technique, involves dragging a large net that herds and captures a target species, such as fish or crabs. [ 66 ]

  9. Seabed - Wikipedia

    en.wikipedia.org/wiki/Seabed

    The environmental impact of deep sea mining is controversial. [39] [40] Environmental advocacy groups such as Greenpeace and the Deep Sea Mining Campaign [41] claimed that seabed mining has the potential to damage deep sea ecosystems and spread pollution from heavy metal-laden plumes. [42] Critics have called for moratoria [43] [44] or ...