O Lecture 10/25/10

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What elemant is Diatoms based on

Si
Where are round diatoms usually found

water clumn
Where are Pennate diatoms usually fuond

benthic
What are dionflagellates made of

cellulose
What feature distinguishes dioflagellates

flagealla
How do Dinoflagellates make energy
- some photosynthesize
- some eat other phytoplankton
- some live symbiotically with other oganisms
What are coccolithophores made of

calcium carbonates
What shapes are coccolithophores in?

crazy ones
What is a coccolith

plates on coccolithosphores
What is a fun fact about coccolithophores
- sense density
- make cloud
- block sun
- population control
What plankton are the white cliffs of dover made of?

Coccolithophores
What happens when plankton are very abundant?
- 1. shading (blocking the light)
- 2. Oxygen depletion (excessive respiration or deomposition)
- 3. Mechanical irritation (damaging fish gills
What causes a red tide?
- dioflagelates
- naturally occuring
- higher than normal concentrations
Definitation of a holoplankton

entrire life as plankton
definition of meroplankton
- part of life as plankton
- juvenile or larval stage
definition of macroplankton

large floaters such as jellyfish or sargassum
definition of picoplankton
- very small floaters
- such as bacterioplankton
definition of neckton
- active swimmers
- fish reptiles mammals birds
Where do benthic organisms live
- on the bottom
- within the bottom sediments
definition of epifauna

bethic organisms that live on the bottom
infauna

benthic organisms that live within the bottom sediments
Classifcation by habitat and mobility
- plankton - floaters
- nekton - swimmers
- benthos - bottom dwellers

Author

green29dive5

47053

Card Set

O Lecture 10/25/10

Description

Plankton

Updated

2010-11-03T16:52:55Z

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