Overfishing

 


OVERFISHING




Some Impacts of Overfishing

- Loss of Biodiversity in Ecosystems- When species such as bluefin tuna and monkfish are overfished, whole ecosystems can be affected. Species such as these are relied on by other species in many ways (as a source of food, for controlling the population of other species, and for keeping an ecosystem balanced in general), and without them, communities could have havoc wreaked upon them.

- Bycatch- The NOAA (National Oceanic and Atmospheric Association) defines bycatch as "fish [or] other animals such as dolphins, whales, sea turtles, and seabirds that can become hooked or entangled in fishing gear". While losing a few of these precious animals in a day may not seem like a huge issue to some, bycatch can contribute to, once again, a loss of biodiversity and keystone species in habitats by killing such animals.





Harmful Fishing Methods
- Bottom Trawling- Bottom trawling is a method of fishing where a large net is dragged across the ocean floor, disrupting and even killing non-targeted species. This contributes to the main point of a loss of biodiversity in ecosystems and overall detrimental effects.



What Can Be Done?
- Creating laws and limits on the sizes of fish that can be caught and kept, the time of year the species of fish is allowed to be kept, and limiting how many fish of the threatened species can be caught at a time
- Only eating certain kinds of fish that are currently in abundance as a replacement for species that are suffering
- Supporting sustainable fisheries and fishing methods
- Aquaculture
- Overall, just making mindful, educated choices on what one buys, eats, and supports



 

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