L6 - Human whale interactions Flashcards
(31 cards)
what three countries left the international whaling commity
Canada, Columbia, Egypt
when was the whale moratorium
1986, all whaling stopped
which country violated the whaling moritorium
Japan, Norway, soviet union, north korea
what is scientific whaling
whaling for the purpose of extracting scientific information. Used as a loophole for continued whaling.
norway sold to japan under the table.
who controls whales in Canada
DFO
who is Paul Watson
the founder of Sea Sheppard
what is Sea Sheppard
A conservation group that focused on anti-poaching by attacking foreign whaling groups in international waters.
why are whales not a good indicator species?
We don’t have enough information about whales
what is the Blob
a parcel of warm water that led to a decline in phytoplankton production that had affects on whale productivity.
who are the Basque whalers
france and spanish whaling in the labradour coast. known as the best whalers
what is a cooper
some on who makes barrels full time.
which whales did Basque whales focussed on?
right and bowhead whales.
what is the Sven Foyn method
exploding harpoons on steam powered boats for whaling. steam boats where more powerful. now possible to whale bigger whales.
why was there lots of whales in Antarctic waters
cold water upwelling lead to higher productivity.
how did whalers store whales
sowed whales mouths shut and filled it with air to float and attached them to bouys for long storage.
What did the Weller brothers do
hydrogenated whale oil
liquid –> solid
hosted whaling stations in new Zealand and Australia
how many whales where killed in industrial whaling
2.9million
why did whaling stop in WW2
- boats drafted to war
- oceans where dangerous
- resumed in 1945
what are the three components of the IWC
- Scientific committee
- created Quotas - Technical Committee
- Plenary
- authorized more 10x more killings than scientific committee recommended
- if you disagreed with quota you could ignore it with no cause
what is a problem with historical scientific whale quotas
Based on fish reproductive systems.
- Density depended models
- whales are not density dependent creatures.
- -k selective
when did we know the science was wrong for whale quotas
1953
-scientists realized they where wrong and where taken off committee
what happened to the grey whale population in Baja lagoons
decimated global grey whale population.
- Warm shallow waters where whales went to calf
- very high whale density whale population
- killed calfs first so mother would stay around longer
What was the antarctic land grab for?
- To have an area for countries to processes whales on land before shipping.
- British set specific regulation’s about this
- Norwegians created factory ships as a result.
what did the the league of nations do for whaling
First to regulate whaling activites
created IWC in 1950
