Birds can get this caught around their neck
rounds of plastic packaging
What item takes the longest to decompose?
Glass bottles- they can take over 1 million years to decompose
How do birds use marine plastics?
Some marine birds have been seen using fishing line to help build their nests
How big is a humpback whales throat
Only as big as a grapefruit! Any plastics smaller than that are able to enter into the humpback whales digestive system
What is the name of the very small plastic that fish commonly (accidentally) ingest?
Micro plastics ( something less than 5 mm in size)
paper and carboard products
How do bivalves ( things like clams, mussels etc.) use marine plastics?
Some bivalves have been seen to attach themselves to free floating plastic
What company docks in the Victoria harbour and helps with cleaning up the GPGP
Ocean Clean Up Boats
( the big blue ones by the break water)
What animal do we often see on our tours with fishing lures in their mouth?
Sea Lions
Define: Biomagnification
The increase in concentration of a toxic or chemical as you move up the food chain
How have some crab species been seen using plastics?
Hermit crabs: some use bits of plastic for their shell
Decorator crabs: use small bits of plastic and "decorate" their shell with it ( acts as camouflage)
What industry contributes the most waste to the Great Pacific Garbage Patch?
The fishing industry
What year was plastic first invented?
1907
In the Salish Sea this is the biggest cause for whale entanglement.
Fishing gear
Define: bioaccumulation
The increase in the concentration of a chemical or toxin over an organisms life time
How have some animals used: cups, bottles, boxes, other large items in their everyday lives
These items can be used as a home or as a hiding place from predators
What damage can ghost nets cause to marine life?
Entanglement
Habitat destruction
When was plastic commercialised?
There are two dates! give us both and you get 400 only 1 and you get 200
After WW2
1960/70s
Turtles can get these stuck down their throat.
Bonus point if you know why...
Plastic bags
How to eliminate plastics from entering the ocean
You need at least 3 examples
Some ideas:
Recycle Properly
How do killer whales females manage to offload some toxins and plastics?
When they give birth and feed their young calf
How big was the GPGP before they started cleaning it up?
Pacific Garbage Patch occupies 1.6 million square kilometers,
Twice the size of Texas,
Three times the size of France.