Macroalgae in the Biosphere 2 ocean

Presentation on theme: "Macroalgae in the Biosphere 2 ocean"— Presentation transcript:

1 Macroalgae in the Biosphere 2 ocean

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3 Sampling procedure Transect lines divided ocean into quadrats
One ring was dropped in a random location within each quadrat Algae within each ring was collected Algae was identified Algae was dried and weighed

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5 Amphiroa Haliptilon Jania

6 Gelidiopsis Chondrus

7 Species List RHODOPHYTA CHLOROPHYTA PHEOPHYTA Acanthophora spicifera
Amphiroa fragilissima Amphiroa rigida Botryocladia pyriformis Chondria dasyphylla Flahaultia Gracilaria tikvahiae Gelidiopsis intricata Haliptilon cubense Halymenia duchassaingii Jania adhaerens Mesophyllum mesomorphum Peyssonnelia Rhodogorgon carriebowensis Sporolithon CHLOROPHYTA Caulerpa serrulata Chaetomorpha sp. Dictyosphaeria cavernosa Dictyosphaeria ocellata Enteromorpha sp. Ernodesmis verticillata Halimeda incrassata Halimeda tuna Rhipocephalus divericata Rhipocephalus phoenix Valonia aegagropila Valonia macrophysa Valonia utricularis Ventricaria ventricosa PHEOPHYTA Dictyota cervicornis Dictyota divercata Dictyota mertensii Dictyota pulchella Padina sp.

8 Shannon-Weiner Diversity Indices
Oct Nov Dec Jan Feb Mar Jun Sep Nov Jan Mar Aug Jan Mar May Jul Sep Jan Mar June Aug Oct

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11 Future analyses Correlations with environmental factors
light CO2 nutrients Comparisons with natural reef environments

12 Photo references www.botany.hawaii.edu/ReefAlgae/ What%20plants
rmocfis.upr.clu.edu/~ballan/ haliptilon.html algae/Chondria1.html (bio2) garion.tzo.com/lynn/ biosphere2.htm (bio2) 03/arizona/biosphere_2