Transcript Compilation of Marine Algae Species found in Puerto Peñasco and

Compilation of Marine Algae
Species found in Puerto
Peñasco and the Guaymas
Background
• 15 different species under 3 main
divisions – Chlorophyta,
Rhodophyta and Phaeophyta
• Brief description of each species,
and ways to identify them
• Picture accompaniments
Division Chlorophyta
Enteromorpha and Ulva spp.
• Enteromorpha –
•
hollow, tubular, some
branched, uninucleate
cells, single
chloroplast, many
pyrenoids
Ulva – blade-like, 2
cells-thick, single
chloroplast, single
pyrenoid
Chaetomorpha and Cladophora spp.
• Chaetomorpha –
•
uniseriate,
unbranched filaments,
multinucleate cells,
clumped.
Cladophora – tufts,
coarse, grow up 10 6
cm, stiff branches
that curve in same
direction
Division Phaeophyta
Cutleria and Ralfsia spp.
• Cutleria –
•
heteromorphic plants,
gametophyte erect,
fan-shaped blades,
thallus rigid and flat
Ralfsia – crusty and
brittle, two-layered
thallus, circular
outline
Division Rhodophyta
Halymenia and Hypnea spp.
• Halymenia – plant
•
erect, gelatinous
fronds, either
branching or bladelike thallus
Hypnea – cylindrical
and compressed,
slender branches with
curled branchlets
Plocamium and Champia spp.
• Plocamium – plant
•
erect, bushy, bright
red, branching in
zigzag manner
Champia – plant
erect, small, clumped,
delicate, branches are
cylindrical and
compressed
References
• African Seaweed Database. http://www.seaweedafrica.org
• Guiry, M.D., 1996. Rhodophyta.
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http://seaweed.ucg.ie/Ireland/Check-listRhodoIre.html
Guiry, M.D. and Nic Dhonncha, E. 2002. Algaebase. World-wide Web
electronic publication. http://www.algaebase.org
Norris, James N., 1975. Marine algae of the northern Gulf of
California.
Wagonner, B. and Speer, B.R., 2000. Introduction to Phaeophyta.
http://www.ucmp.berkeley.edu/chromista/phaeophyta.html
Webb, D. T., 2000. Chlorophyta.
http://www.botany.hawaii.edu/faculty/webb/BOT311/Chlorophyta/C
hlorophyta-100.htm
Sze, P., 1998. A Biology of the Algae. WCB McGraw-Hill publications.