BIOS1301 Lecture Notes - Lecture 20: Insular Biogeography, Overexploitation, International Polar Year
3 Jun 2018
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BIOS1301 – Ecology and Sustainability – Part 10
LEC 20:
Q. What are the key issues for managing sustainable fisheries?
R. Migratory species will be managed differently in all the areas they travel
through. Protecting breeding sites (marine parks), but the fish then grow and
move into international waters where fish trollers take them. Fish size minimum
means larger fish are favourable, but they are required for breeding.
Q. What was the major cause of collapse of the Canadian East Coast Cod Fishery?
A. Climate change
B. Increase in seal numbers
C. Overfishing and loss of sea ice cover
D. Overfishing of adult cod and improved fishing technologies
E. Unregulated catch by foreign fleets
• Large fishing trollers that can move across massive bodies of water
(international waters), refrigeration on site so they don't have to go back to
shore, use sonar and radar technology, drones and helicopters to know where
the fish are, some even have canning on board resulting in enormous amounts
of overfishing.
• We need global responsibility to manage all this
LEC 21:
Challenges in managing Antarctica
• Treaty for the Antarctic
• CCAMLR - Convention on Conservation of Antarctic Marine Living Resources
• Madrid Protocol
• International Polar Year (2007-2011)
o Climate change and ocean acidification further research
o Further developet o the Atarctic Treaty’s touris aageet
HINTS:
• Treaties and conventions for conducting research in Antarctica (Madrid
protocol)
LEC 22:
Protected area conservation
• Conservation of ecosystems
o Reserves (nature parks/reserves)
Set aside as areas for conservation of species: land, freshwater
and marine
Long-ter coservatio is’t guarateed
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