Stats T4

Question 1

How much kelp forests do Aus support

Answer 1

800km

Question 2

Biodiversity in kelp forests

Answer 2

85% temperatre fish, 95% of molluscs, 90% of sea stars are unique to kelp

Question 3

Tas loss of forests

Answer 3

95%

Question 4

Water temp has risen by

Answer 4

1-2 degrees ince 1950s

Question 5

kelp covers…

Answer 5

25% of worlds coastlines

Question 6

How much fo worlds forests have declined over past 50 years

Answer 6

38%

Question 7

In US, Nortern Calfornia, kelp canopies have delcine more than…

Answer 7

95% in 2014-15 marine heat wave, longest ever recorded on 226 days

Question 8

By 2100, average loss of … canopy forming seaweeds in Aus

Answer 8

62%

Question 9

GSR how many psies are endmeic to region

Answer 9

77%

Question 10

exmaples of endemic species in GSR

Answer 10

Giant Aus cuttle fish, Austrlaian fur seal, Weedy seadragon

Question 11

How long is the GSR

Answer 11

8100km

Question 12

Species number in GSR

Answer 12

731 fish spcies, 4100 intervertebrates, 978 seaweed species

Question 13

How much of Australisn live wihtin 50km of GSR

Answer 13

70% (16 million)

Question 14

How much of kelp forests in GSR show bleaching symtoms

Answer 14

50%

Question 15

2011 WA marine heat wave
what temp did coastline reach

Answer 15

2-6 degrees above average

Question 16

WA 2011 marin heatwaves
forests decline in 2013

Answer 16

43%

Question 17

South Kalbarri status of kelp forests after marine heat wave WA 2011

Answer 17

100% have been lost in the 100km zone from South of Kalabarri

Question 18

Climate change increase in temp stat

Answer 18

1 degree increase in global average temp since pre industrial time (1900)

Question 19

how much of heat and cabron does oceans absorb

Answer 19

Heat: 90% between 1971-2010
Carbon: 30% since pre indisutrial times

Question 20

area of kelp bleaching in aus

Answer 20

soltitary islands marine park 2002-2011 due to EAC strength

Question 21

Sea urchins went from 3% of east coast fo Tas to

Answer 21

20% and 40 million urchins since 1978

Question 22

Southern rock lobster valued at

Answer 22

250 million to fisheries

Question 23

Stocks of southern rock lobster is less than

Answer 23

10% of natural levels in 2011-12

Question 24

Northern pacific sea stars account for (biomass)

Answer 24

54% of fish biomass in Port Phillip Bay

Question 25

until early 1990s, sydney beaches polluted

Answer 25

up to 1 billion litres epr day, untreated sewage

Question 26

what did sydney sewage dumping do to biodiveristy

Answer 26

disapearance of caryweed during 1980s from Palm Beach to Cronulla