Difference between revisions of "ExtinctMammals"

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(Causes)
(Causes)
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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.  
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<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)
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o Peruvian dolphins; anchovy fisheries collapsed so people started hunting dolphins; led to depletion in population (Merritt)</nowiki>
  
 
== Effects ==
 
== Effects ==

Revision as of 01:39, 1 March 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