Chapter 1 |Introduction to Freshwater Ecology

Question 1

is the study of freshwater ecosystem (includes structure and partitions of freshwater/inland waters such as lakes, streams, rivers and estuaries; and aquatic organisms
such as fishes, plants, insects, molluscs and planktons).

Answer 1

Freshwater ecology

Question 2

is a partially enclosed, coastal water body where freshwater from rivers and streams mixes with salt water from the ocean

Answer 2

estuary

Question 3

also termed as “Limnology”.

Answer 3

Freshwater ecology

Question 4

according to Wetzel (2001), the
term limnology includes

Answer 4

inland saline waters such as salt water lakes (e.g. Caspian Sea).

Question 4

The US Geological Survey reported that approximately________of the Earth’s surface is watercovered

Answer 4

71%

Question 5

University Vision:

Answer 5

The leading University in geology, bio-
resource science and environmental management in the Bicol Region.

Question 6

University Mission:

Answer 6

To provide quality instruction in the
arts, philosophy, sciences, technology and other
relevant courses and create a competitive advantage in research, extension and production services for the socio-economic upliftment of the Bicolanos.

Question 7

Quality Policy:

Answer 7

The Partido State University commits to
provide quality instruction, responsive research and need-based extension services for global
competitiveness and satisfaction of its clients,
stakeholders, regulatory bodies and other service
providers through continual improvement of the
quality management system.

Question 8

provides an overview on physical, biological and chemical processes and environmental conditions of freshwater/ inland waters such as lakes,
streams, rivers, and estuaries in relation with
the aquatic organisms.

Answer 8

Freshwater Ecology

Question 9

97 % of all the Earth’s water is in the _________

Answer 9

ocean

Question 10

There are also non-renewable water
resources exploited for human utilization
such as ________

Answer 10

aquifers

Question 11

There are also non-renewable water
resources exploited for human utilization
such as ________

Answer 11

aquifers

Question 12

large stores of groundwater

Answer 12

aquifers

Question 13

Wmax= Wp-We

Answer 13

The maximum total water available
for human use is the amount of that falls as
precipitation on land each year minus the
amount lost to evaporation.

Question 14

factors that lessen water availability

Answer 14

floods or flows occurring in areas far from
human population centers.

Question 15

threats to our water resources.

Answer 15

Sediment, pesticide and herbicide
residues, fertilizer runoff, other nonpoint
runoff, sewage with pathogens and
nutrients, chemical spills, garbage dumping,
thermal pollution, acid precipitation, mine
drainage, urbanization, and habitat
destruction

Question 16

Who states that “Understanding the implications of each
of these threats requires detailed
understanding of the ecology of aquatic
ecosystems. The effects of such human
activities on ecosystems are linked across
landscapes and encompass wetlands,
streams, groundwater, and lakes”

Answer 16

Covich, 1993