Question 1

Identify the mismatched pair.

Accepted Answer

The answer of Identify the mismatched pair.
...

Question 2

The area of the ocean that produces the largest standing stock of commercial fish is in the:

Accepted Answer

Coastal areas are the most productive areas for commercial fisheries due to high levels of nutrients and primary production from coastal upwelling and estuary inputs, which support a diverse community of prey species for larger predatory fish.

Question 3

The term-by catch refers to:

Accepted Answer

The term "by-catch" refers to non-target species that are caught along with commercial species, which are often discarded as waste.

Question 4

The relationship between cyanobacteria and fungi that results in a lichen is an example of:

Accepted Answer

The relationship between cyanobacteria and fungi in a lichen is an example of mutualism. The cyanobacteria provide photosynthetic products to the fungi, while the fungi provide a protected environment and minerals to the cyanobacteria. Both organisms benefit from this relationship.

Question 5

The percentage of biomass regularly recycled in the euphotic zone is about:

Accepted Answer

The answer of The percentage of biomass regularly recycled in...

Question 6

A symbiotic relationship in which one organism benefits and the other is unaffected is:

Accepted Answer

In commensalism, one organism benefits (the commensal) while the other organism is neither harmed nor benefited (the host). This is different from mutualism, where both organisms benefit, or parasitism, where one organism benefits at the expense of the other. Ectoparasitism and endoparasitism are both types of parasitism. Predation is also not the correct answer as it involves one organism killing and consuming another organism.

Question 7

The maximum sustainable yield (MSY)is best defined as:

Accepted Answer

MSY is the largest catch that can be taken without overfishing, which means maintaining a population size that can continue to reproduce and sustainably yield the same amount of catch in future years. It takes into account natural mortality, growth rate, and other factors to determine the optimal level of fishing effort that can ensure sustainable fishing practices.

Question 8

Catches above the maximum sustainable yield:

Accepted Answer

Catches above the maximum sustainable yield can lead to overfishing, as it means more fish are being harvested than can be replenished by reproduction. This can ultimately lead to reduced populations and even the collapse of the fishery. Therefore, it is important to manage fisheries to stay within the bounds of the maximum sustainable yield.

Question 9

The percentage of euphotic zone biomass that reaches the deep ocean floor is approximately:

Accepted Answer

Only about 1% of the biomass from the euphotic zone (the upper layer of the ocean where sunlight can penetrate) reaches the deep ocean floor. The rest is either consumed by organisms in the water column, recycled within the euphotic zone, or lost to the atmosphere through respiration and decomposition.

Question 10

All of the following are effective means of regulating fisheries except:

Accepted Answer

Limiting the size of the boat may not be an effective means of regulating fisheries because it does not necessarily limit the amount of fish that can be caught. A smaller boat may still be able to catch a significant amount of fish, and a larger boat may be more efficient and selective in its fishing methods. The other options listed (limiting fishing season, location of catch, setting catch and gear limits) are all commonly used methods of regulating fisheries to maintain sustainable fish populations.

Question 11

Match between columns
                        Premises: mariculture
standing stock
maximum sustainable yield
Marine Mammals Act of 1992
by-catch

Accepted Answer

The Answer of maximum catch without reducing the population of is...

Question 12

Match between columns
                        Premises: Ceratium
grouper
dolphin
fan worm
brittle star
baleen whale
diatom
krill
bacteria

Accepted Answer

The Answer of herbivore and omnivore and autotroph and detritivore is...

Question 13

Match between columns
                        Premises: starfish
cyanobacteria
Sargassum
bacteria
flounder
kelp

Accepted Answer

The Answer of producer and decomposer and consumer is...

Quiz 13: Biological Productivity and Energy Transfer