Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa
Thesis (M.S.) University of Alaska Fairbanks, 2012 The canopy forming kelp Eualaria fistulosa inhabits two organizational states throughout the Aleutian archipelago, kelp forests and barren grounds. Urchin abundance and behavior determines which state dominates in any given area. Sporophyll phlorota...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/11324 2023-05-15T14:17:58+02:00 Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa Schuster, Martin D. Konar, Brenda Iken, Katrin Coyle, Kenneth 2012-12 http://hdl.handle.net/11122/11324 en_US eng http://hdl.handle.net/11122/11324 Marine Science and Limnology Program kelps Alaska Aleutian Islands kelp bed ecology Thesis ms 2012 ftunivalaska 2023-02-23T21:37:40Z Thesis (M.S.) University of Alaska Fairbanks, 2012 The canopy forming kelp Eualaria fistulosa inhabits two organizational states throughout the Aleutian archipelago, kelp forests and barren grounds. Urchin abundance and behavior determines which state dominates in any given area. Sporophyll phlorotannin content and holdfast epibiont fauna were investigated at multiple islands along the Aleutian archipelago to determine how the organizational state affects the production of secondary metabolites and the taxon richness, abundance and biomass of holdfast communities. Barren ground sporophylls had higher phlorotannin content than kelp forest sporophylls, although grazing rates on sporophylls from each state did not differ during in situ grazing experiments. The taxon richness, abundance and biomass of holdfast communities were similar between kelp forests and barren grounds at all islands, although these communities varied among islands and were mostly driven by holdfast volume. These results suggest that physical differences such as light and nutrient availability in the kelp forest structure between organizational states may be responsible for differences in phlorotannin content, but that these differences are not reflected in the holdfast community structure. It appears that barren ground holdfast communities are remnants of a once forested area. The National Science Foundation, Bureau of Ocean Energy Management Thesis Archipelago Alaska Aleutian Islands University of Alaska: ScholarWorks@UA Fairbanks Holdfast ENVELOPE(-66.590,-66.590,-66.803,-66.803) |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
kelps Alaska Aleutian Islands kelp bed ecology |
spellingShingle |
kelps Alaska Aleutian Islands kelp bed ecology Schuster, Martin D. Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
topic_facet |
kelps Alaska Aleutian Islands kelp bed ecology |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2012 The canopy forming kelp Eualaria fistulosa inhabits two organizational states throughout the Aleutian archipelago, kelp forests and barren grounds. Urchin abundance and behavior determines which state dominates in any given area. Sporophyll phlorotannin content and holdfast epibiont fauna were investigated at multiple islands along the Aleutian archipelago to determine how the organizational state affects the production of secondary metabolites and the taxon richness, abundance and biomass of holdfast communities. Barren ground sporophylls had higher phlorotannin content than kelp forest sporophylls, although grazing rates on sporophylls from each state did not differ during in situ grazing experiments. The taxon richness, abundance and biomass of holdfast communities were similar between kelp forests and barren grounds at all islands, although these communities varied among islands and were mostly driven by holdfast volume. These results suggest that physical differences such as light and nutrient availability in the kelp forest structure between organizational states may be responsible for differences in phlorotannin content, but that these differences are not reflected in the holdfast community structure. It appears that barren ground holdfast communities are remnants of a once forested area. The National Science Foundation, Bureau of Ocean Energy Management |
author2 |
Konar, Brenda Iken, Katrin Coyle, Kenneth |
format |
Thesis |
author |
Schuster, Martin D. |
author_facet |
Schuster, Martin D. |
author_sort |
Schuster, Martin D. |
title |
Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
title_short |
Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
title_full |
Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
title_fullStr |
Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
title_full_unstemmed |
Kelp forests and barren grounds: phlorotannin production and holdfast community structure in the Aleutian dragon kelp, Eualaria fistulosa |
title_sort |
kelp forests and barren grounds: phlorotannin production and holdfast community structure in the aleutian dragon kelp, eualaria fistulosa |
publishDate |
2012 |
url |
http://hdl.handle.net/11122/11324 |
long_lat |
ENVELOPE(-66.590,-66.590,-66.803,-66.803) |
geographic |
Fairbanks Holdfast |
geographic_facet |
Fairbanks Holdfast |
genre |
Archipelago Alaska Aleutian Islands |
genre_facet |
Archipelago Alaska Aleutian Islands |
op_relation |
http://hdl.handle.net/11122/11324 Marine Science and Limnology Program |
_version_ |
1766289763799662592 |