Aquatic Environment Terms

Question 1

Limnology

Answer 1

study of lakes

Question 2

Lotic

Answer 2

flowing water

Question 3

Lentic

Answer 3

nonflowing water

Question 4

Allocathanous

Answer 4

inputs to an aquatic ecosystem from outside sources

Question 5

Autocathanous

Answer 5

inputs to an aquatic ecosystem from within

Question 6

DOM

Answer 6

dissolved organic matter

Question 7

CPOM

Answer 7

course particular organic matter

Question 8

Euphotic/Photic

Answer 8

true light

Question 9

Aphotic

Answer 9

less than 1% of light penetration

Question 10

Oxic

Answer 10

high oxygen content

Question 11

Anoxic

Answer 11

low levels of oxygen (less than .1% mg/l

Question 12

Major contributor of O2

Answer 12

photosynthesis, wind, waves, rivers flowing into a lake, etc

Question 13

Autotrophic

Answer 13

PSN (Euphotic Zone)

Question 14

Heterotrophic

Answer 14

secondary consumer

Question 15

Compensation Depth

Answer 15

area in a lake of balance between autotrophs and heterotrophs (zooplankton hang out here)

Question 16

Littoral

Answer 16

nearshore

Question 17

Pelagic

Answer 17

open water

Question 18

Benthic

Answer 18

bottom

Question 19

Epilimnion

Answer 19

warmer surface water

Question 20

Metalimnion

Answer 20

heat transfer to lower regions of the lake

Question 21

Thermocline

Answer 21

region of greatest heat transfer: 1 degree c/m

Question 22

Hypolimnion

Answer 22

cold with very little heat from the surface

Question 23

H2O is ______

Answer 23

polar

Question 24

Surface Tension

Answer 24

organisms live right under it

Question 25

Hairs on insects legs/feet are______

Answer 25

nonpolar

Question 26

High Specific Heat Capacity

Answer 26

holding heat (water has one of the highest specific heat capacities)

Question 27

Water is most dense at _______

Answer 27

3.98 degrees Celcius