ExtinctMammals: Difference between revisions

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===Causes===
===Causes===


• Overexploitation seems to be the main issue – loss of fish from overfishing and poor practices can destroy ways of life, jobs, industries, etc.  
<nowiki>• Overexploitation seems to be the main issue – loss of fish from overfishing and poor practices can destroy ways of life, jobs, industries, etc.  
• Marine mammals are often caught as bycatch  
• Marine mammals are often caught as bycatch  
• Unregulated harvest  
• Unregulated harvest  
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• Poverty and the collapse of other industries can lead to abrupt changes in local fishing conditions – may start to prey on marine mammals once their value as food and bait is noticed  
• Poverty and the collapse of other industries can lead to abrupt changes in local fishing conditions – may start to prey on marine mammals once their value as food and bait is noticed  
o Unregulated and unsustainable (Merritt)  
o Unregulated and unsustainable (Merritt)  
o Peruvian dolphins; anchovy fisheries collapsed so people started hunting dolphins; led to depletion in population (Merritt)
o Peruvian dolphins; anchovy fisheries collapsed so people started hunting dolphins; led to depletion in population (Merritt)</nowiki>


== Effects ==
== Effects ==

Revision as of 20:39, 29 February 2016

Extinct Marine Mammals

Past Extinctions

Causes

• Overexploitation seems to be the main issue – loss of fish from overfishing and poor practices can destroy ways of life, jobs, industries, etc. • Marine mammals are often caught as bycatch • Unregulated harvest • new and innovative solutions to this problem are required to take account of the socioeconomic conditions experienced by fishermen” (Merritt) • Issue of regulation versus deregulation – looking at pros and cons of regulation seeing as it costs a lot, but is significant in saving a species o Regulation = politically unpopular (Merritt) • Poverty and the collapse of other industries can lead to abrupt changes in local fishing conditions – may start to prey on marine mammals once their value as food and bait is noticed o Unregulated and unsustainable (Merritt) o Peruvian dolphins; anchovy fisheries collapsed so people started hunting dolphins; led to depletion in population (Merritt)

Effects

On Humans

On Ecosystems

Connection to Coral Reefs

Prevention

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