LIFESCI 2H03 Lecture Notes - Phytoplankton, Global Warming, California Current
11 Jun 2013
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Document Summary
Hunts in packs and feeds on whatever is available. Hate now seems to be spawning off of waters outside california and could changes in schooling behaviour of fish as a result of the fish pose a problem. Sudden predation has been fished out in the squids home range. Big fishes eat the baby squid, in response the squid population grow (exploding population) Fisherman have seen these squid before in warmer periods. No evidence of humble squid until 1998 el nino. 2002 little el nino and the squid came back and have been here ever since. Episodic range expansions during el nino is a natural phenomenon thanks to a blanket of co2 el nino is becoming more persistent and is driving up other temperature in the global sea. Kelp does best in temp 10-16oc in 2006 in the deep ocean off oregon, thousands of creatures suddenly disappeared in 2002 fisherman show dead crabs in their traps low oxygen is the cause.
