Help!
|
|
||||
|---|---|---|---|---|---|
| Standing crop | Amount of plant material alive at any one time
Can be applied to phytoplankton, algae, or all plants
🗑
|
||||
| Primary production | Same as photosynthesis
Biological process of creating high energy organic material from CO2 H2O and other nutrients using solar energy
6H2O + 6CO2 yields C6H12O6+ 6O2
🗑
|
||||
| Gross primary production | Total amount of organic material produced in the sea by photosynthesis
🗑
|
||||
| Net primary production | Any excess production used for growth, reproduction, and losses due to death
🗑
|
||||
| Harvest method ( measuring primary production) |
MEASURES BIOMASS AND EXPRESS AS BIOMASS PER UNIT AREA PER UNIT TIME
CAN BE DESTRUCTIVE
🗑
|
||||
| Light and dark bottles ( measuring primary production) | Measure O2 in each, dark represented O2 lost to respiration, light was total gained
Add them together to get GPP
Older method
🗑
|
||||
| Nielsen method ( C14) measuring primary production | Measures amount of radioactive C14 assimilated by PPK In their tissues
Is a measure of NPP
Newer method
🗑
|
||||
| Chlorophyll A method ( measuring Primary production) | Measure amount of chlorophyll present in a certain area using satellites
Assumes a direct relationship between amount of chlorophyll and rate of photosynthesis
This is called remote sensing
🗑
|
||||
| Limiting factor | Any condition that exceeds limits of tolerance or doesnât satisfy basic material needs of an organisms and establishes a check on further population growth
🗑
|
||||
| Light ( factor affecting pp) | Must remain in photic zone
Zone depth changes due to atmosphere, angle of sun, and water transparency
🗑
|
||||
| Photo-inhibition | Reduction of photosynthesis rates due to too much light
Organisms adjusts to light intensity
🗑
|
||||
| Nutrient requirements ( factor) | Calcium for calcium shells
Silicon for silica shells
CHNOPS
Trace elements- elements needed in minute amounts
IRON, Maganese, cobalt, zinc, copper
🗑
|
||||
| Nutrients continue | Many nutrients lie below photic zone. Mixing occurs due to seasonal temperature changes ( CONVECTIVE MIXING)
Langmuir cells- parallel Pairs of small counter rotating convection cells driven by surface winds
🗑
|
||||
| Grazing ( factor) | Phytoplankton eaten by zooplankton which excrete or die and are then recycled into usable substances by Bacteria
🗑
|
||||
| Temperature ( factor) | Pp has an optimal temperature range
🗑
|
||||
| Carbon dioxide factor | CO2 concentration
Not usually a problem in the ocean but plenty available
🗑
|
||||
| Seasonal patterns | All PP measurements change in response to seasonal differences in light intensity
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Iamnotmaddy