Embed Size (px)
Citation preview
Phillip L TreiberMarine Botany – Dr. G3/20/14
Microalgae Collection and Identification
Type: Marine Diatom
Chaetoceros danicus
Type: Marine Cennate Diatom
Common
Distinctive corkscrew chain of cells
The sample this was taken from a plankton pull from Casco Bay, South Portland on March 6th, 2014
The chain is under 200 long microns with an estimated 35 cells in the chain
Image taken at 40x magnification
Chaetoceros debillas
Figure 1. Both girdle and valve views of Chaetoceros debillas
Chaetoceros debillas
Figure 2. Both girdle and valve views of Chaetoceros debillas
Type: Marine Cennate Diatom
Chains straight and stiff. Only the valve corners touch the cell next to it.
Setae seem fused for a short distance and then split, but they are separate
Terminal setae thicker (not shown)
‘Long’ side of the cell is less than 30µm. “Short side less than 25µm
The sample this was taken from a plankton pull from Casco Bay, South Portland on March 6th, 2014
Image taken at 40x magnification
Chaetoceros decipiens
Figure 1. Valve view of Chaetoceros decipiens in a chain
Type: Marine Pennate Diatom
Extremely common at all times of year
Elongated cell with upturned ends
Solitary cells
The sample this was taken from a plankton pull from Casco Bay, South Portland on March 17thth, 2014
Image taken at 40x magnification
Source: Carmelo and Hasle, Identifying Marine Phytoplankton, 1997
Cylindrotheca closterium
Figure 1. Valve view of Cylindrotheca closterium
Type: Marine Pennate Diatom
Distinctive shape of cylinder with spines extending from cylinder
Cells solitary
Chloroplasts numerous, but in small granules
The sample this was taken from a plankton pull from Casco Bay, South Portland on March 6th, 2014
Image taken at 40x magnification
Ditylum brightwellii
Figure 1. Valve view of Ditylum brightwellii
Ditylum brightwellii
Figure 2. Valve view of Ditylum brightwellii
Type: Marine Pennate Diatom
The sample this was taken from a plankton pull from Casco Bay, South Portland on March 6th, 2014
Image taken at 40x magnification
Licmophora flabellata
Figure 1. Valve view of Licmophora flabellata
![Industrial application of microalgae in the circular ... · Industrial application of microalgae in the circular bioeconomy Dorinde Kleinegris [Applied Biotechnology / Microalgae]](https://img.pdfslide.us/doc/110x75/5ead3c152d0239422909016e/industrial-application-of-microalgae-in-the-circular-industrial-application.jpg)
