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Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms. [3]
His videos are posted on YouTube at the channel “Pawlik Lab." Two short videos, “Sponges of the Caribbean" [ 38 ] and “The maid did it!" [ 39 ] were finalists in the Ocean 180 video challenge, [ 40 ] a science video outreach competition sponsored by the National Science Foundation , in 2015 and 2016, respectively.
Overfishing can be sustainable. [dubious – discuss] According to Hilborn, overfishing can be "a misallocation of societies' resources", but it does not necessarily threaten conservation or sustainability". [2] Overfishing is traditionally defined as harvesting so many fish that the yield is less than it would be if fishing were reduced. [2]
The overfishing list reflects species that have an unsustainably high harvest rate. NOAA also keeps a list of overfished stocks. Those are species that have a total population size that is too low.
These methods facilitate destructive fishing practices that damage ocean ecosystems, resulting in overfishing. [2] Unsustainable fishing methods vary in scale, ranging from commercial-grade equipment (such as bottom trawling) to consumer-grade equipment such as fishing rods and nets. [3]
Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
All Caribbean territories therefore have fishing industries. Most Caribbean fishermen ply their trade from small boats (4–11 meters). These small craft, often without protection from sun or rain, are forced to remain very close to shore, seldom going more than 16 kilometers offshore.
Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.