Phytoplankton and Chlorophyll Chlorophyll How about Borophyll By
Phytoplankton and Chlorophyll (Chlorophyll? How about Borophyll? !) By: Kate Hilfanski And Don Maryfiker
What is chlorophyll? • Photosynthetic pigment found in most plants • Able to absorb light and transfer to light energy • Chlorophyll a found in all algae!!
A Little Bit About Phytoplankton • Can be unicellular or multicellular – Very little division of labor • reproduction can be sexual or asexual • Primary producers – food for herbivorous zooplankton (if not toxic) chlamydomonas Volvox
Chrysophyta • • (Golden algae and Diatoms) Are eukaryotic Has pigments chlorophylls a and carotenoids – Two Class: • Golden Algae Ex. Mallomonas • Diatoms -Have frustules made of silica ex. . Fragillaria, Asterionella , and Tabellaria
Cyanophyta (blue-green algae) • Only prokaryotic algae • Has chlorophyll a and phycobilins (phycocyanin -blue-green color pigments) • Some are nitrogen fixers – contain a heterocysts N 2 fixation occurs Some are toxic • Examples of members of Cyanophyta: Anabaena or Microcystis
Chlorophyta (green algae) • Are eukaryotic • Have chlorophyll a and chlorophyll b pigments • It is believed they are the ancestors of higher plants Examples: Spirogyra, Pediastrum, and Volvox
Pyrrophyta (dinoflagellates) • Are also eukaryotic • Have chlorophylls a and c and xanthophylls pigments Example: Ceratium
Phytoplankton Distribution in Arbutus Lake
Phytoplankton Distribution in Catlin Lake
Phytoplankton Distribution in Green Lake • There were many cyanobacteria but only one synura in the Chemo layer • Phytoplankton was not found in the other layers
Phytoplankton Distribution in Oneida Lake • Aulacosira dominated meta and hypo but small flagellates dominated the epi
Phytoplankton Distribution in Onondaga Lake Microcystis dominated all layers. LGRB was found along with microcystis in all layers
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