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unit 4 marine science Flashcards | StudBud
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unit 4 marine science
ecological refers to
Managing ecosystems strategies include
unit 4 marine science
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1
Managing ecosystems strategies include
permits and plans for managing threats.
managing threats, zoning, permits, plans, longitudinal monitoring
zoning to protect important areas
managing each threat individually and longitudinal studies
2
ecological refers to
not keeping ecosystems
for the economy
ensure you are maintaining it economically
maintaining genetic diversity
3
what are some of the indirect consequences of ocean acidification.
it may crash trophic levels as it affects phytoplankton
there are none
all organisms are affected by it
it only affects coral
4
primary production increases fisheries
Because fisheries require plankton to increase juvenile populations
more fish make more babies
More nutrient always results in more fish
more nutrient causes more plankton but not more fish
5
marine systems need to take into account
the population must be representative.
representation of biodiversity considering connectivity and mobility
not all species breed in the water
the life cycles of each species
6
In the lincon fish recapture index M is
has nothing to do with it
number of fish caught the second time
Number of fish caught and remarked initially
number of fish recaptured
7
Ways you select a marine protected area
all sites have same value
site selection, connectivity
you only need to protect economically important fish life cycles
site selection, networking connectivity, replication, spacing, size
8
What are some of the issues caused by increased global temperatures?
increased coral bleaching
increased algae due to more heat
all of the above
increased number and severity of storms
9
NGO's can be
specific, quick to act and have no ability to enforce
slow, have no specific goal but can enforce things
non specific and slow to act
slow and have specific goals
10
economic reasons to maintain an ecosystem include
recreation, ecosystems
ethical yield
recreation, ethical yield, ecotourism
ecotourism, aesthetic value
11
The reasons for preserving an ecosystem include..
ethical economic, feelings and creativity
ecological, economic, aesthetic, ethical
economic and aesthetic
ethical and ecological
12
changing thermal regimes will
cause changes in fish populations
cause no change in fish populations
will only cause decrease in fish populations
will only cause decreases in fish populations
13
bioacumulation is
make biology possible
makes more baby fish
increase of toxins up the food chain
movement of nutrient
14
Aesthetic value is
spiritual connection only
source of beauty, spiritual connection.
the only reason to protect ecosystems
source of calcium
15
The three main fisheries are
lake, ocean and recreational
ocean, freshwater and brackish
marine and freshwater
artisanal, recreational and commercial
16
maximum sustainable yields and maximum economic yields are
MSY is lower
MSY is the best one to use
MEY is lower
MEY is not used in Australia
17
NGO is a
non government organisation
non government organisms
non genetically origin
No going to organise
18
Ethical reasons to preserve ecosystems
bio rights and stewardship aesthetic
ethics is the right thing to do
Is is the right thing to do
to preserve fish ect
19
food web describes
the requirements of each animal
what organisms ingest other organisms
the friends of each fish
the breeding requirements of each fish
20
evaluate is to...
weight up the success / failure of something
list positive and negative
describe how and why
list key characteristics
