Impacts of Overfishing On the Environment Presentation
it meed to be at least8 pages presentation and it need to be remain 10mins
- Introduction
- Over the years humans have relied on the rivers, lakes, seas, and oceans for subsistence fishing and harvesting of the abundance of the fish in their habitats
- Advancement in fishing technologies is that it has brought more negative environmental consequences and overfishing being identified as a primary cause of the collapse of the ecosystem in many aquatic environments
- The act of catching fish itself is not a bad practice, except when it uses vessels that catch fish faster than they can replenish in their habitats
- Impacts of overfishing to the environment
- Overfishing of some of the species of fish near to extinction is one of the chief consequences of overfishing to the environment
- In the introduction of new fishing technologies in the 1960s, the technologies enabled fishers to have deep fishing for the cod and catch them more rapidly
- The decline of cod has also been reported in the cost of Canada which experience a decrease of over 75% or over of the biomass
- Overfishing has led to prey population explosions which hence caused a trophic cascade. The removal of the largest predators in the ocean and the sea is the leading cause of this phenomenon
- Habitat destruction
- Overfishing does not only remove a large number of fish from the ocean but also it has led to the destroying of aquatic habitats
- Seafloor trawling decreases the biomass of fish underwaters and production of benthic species because it is a process that involves pulling of equipment in the seabed in the effort of catching bottom-dwelling fish
- Application of blast fishing in tropical areas causes environmental destruction. Blast fishing is a method where fishers lights dynamite sticks and toss them into water
- Destruction of the environment by derelict fishing gear
- Derelict fishing gears can be destructive to the environment especially when they became lost or forgotten in the waters during fishing
- Derelict mortality and ghost pots are also leading causes of adverse changes in the population demographics of the fish
- Bycatch
- The catching of non-target fish in the ocean has a far-reaching impact on the environment
- The trawling nets and gillnets are also another type of fishing methods that lead to bycatch of fish in large amounts
- The consequences of bycatch are always far-reaching because it makes the species of animals in the ocean to extinct slowly in many areas of the world
- Conclusion