http://lod.bco-dmo.org/id/dataset/488790
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2014-01-28
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Palatability of Galaxaura & Sargassum to herbivores in the Viti Levu, Fiji from 2011 (Killer Seaweeds project)
2014-01-22
publication
2014-01-22
revision
BCO-DMO Linked Data URI
2014-01-22
creation
http://lod.bco-dmo.org/id/dataset/488790
Mark E. Hay
Georgia Institute of Technology
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Hay, M. E. (2014) Palatability of Galaxaura & Sargassum to herbivores in the Viti Levu, Fiji from 2011 (Killer Seaweeds project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2014-01-22) Version Date 2014-01-22 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/488790 [access date]
Palatability of Galaxaura & Sargassum to herbivores Dataset Description: Methods and Sampling: <p>In addition to allelochemical induction, we evaluated whether competition affected the growth of either seaweed or changed their susceptibility to herbivory. To evaluate changes in palatability, we then conducted paired feeding assays in the field using a portion of each autogenic treatment and control pair. We removed four branches from each treatment seaweed, spun them uniformly in a salad spinner to remove excess water, weighed the branches and inserted them 5 cm apart on a 60 cm section of 3-stranded rope. Ropes holding control seaweeds were assembled identically (n = 15 rope pairs species-1). Furthermore, a single branch of each seaweed from each pair was spun, weighed and inserted into a 20 cm segment of 3-stranded rope to be deployed as a caged control to assess changes in seaweed mass unrelated to herbivory.</p>
<p>Within the reserve, we deployed autogenic pairs of treatment and control seaweed in a network of pools accessible to herbivorous fishes at both low and high tide. We deployed pairs within approximately 0.50-0.75 m of each other, and caged controls within 1 m of each pair. Replicates were spaced by 5-7 m. We recollected pairs when approximately 50% of the total biomass (within pairs) was consumed; thus, tests for Sargassum lasted 2-24 h and tests for Galaxaura lasted 5-7 days. Following assays, seaweeds were bagged in situ and returned to the laboratory, where they were spun and re-weighed. We calculated the mass of each seaweed consumed using the formula: [Ti(Cf/Ci)] - Tf , where Ti and Tf were the initial and final masses (respectively) of a seaweed exposed to herbivory, and Ci and Cf were the initial and final masses (respectively) of its autogenic caged control protected from herbivory.</p>
<p><strong>Relevant References:</strong></p>
<p>* Rasher DB and ME Hay. "Competition induces allelopathy but suppresses growth and anti-herbivore defense in a chemically rich seaweed". &nbsp;Proceedings of the Royal Society: B-Biological Sciences. vol. 281 no. 1777 20132615,&nbsp;2014&nbsp;(<a href="http://dx.doi.org/10.1098/rspb.2013.2615">http://dx.doi.org/10.1098/rspb.2013.2615</a>).</p>
<p>Rasher DB, Stout EP, Engel S, Kubanek J, and ME Hay. "Macroalgal terpenes function as allelopathic agents against reef corals", Proceedings of the National Academy of Sciences, v. 108, 2011, p. 17726.</p>
<p>Beattie AJ, ME Hay, B Magnusson, R de Nys, J Smeathers, JFV Vincent. "Ecology and bioprospecting," Austral Ecology, v.36, 2011, p. 341.</p>
<p>Rasher DB and ME Hay. "Seaweed allelopathy degrades the resilience and function of coral reefs," Communicative and Integrative Biology, v.3, 2010.</p>
<p>Hay ME, Rasher DB. "Corals in crisis," The Scientist, v.24, 2010, p. 42.</p>
<p>Hay ME and DB Rasher. "Coral reefs in crisis: reversing the biotic death spiral," Faculty 1000 Biology Reports 2010, v.2, 2010.</p>
<p>Rasher DB and ME Hay. "Chemically rich seaweeds poison corals when not controlled by herbivores", Proceedings of the National Academy of Sciences, v.107, 2010, p. 9683.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0929119 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0929119
completed
Mark E. Hay
Georgia Institute of Technology
404-894-8429
School of Biology 310 Ferst Drive
Atlanta
GA
30332
mark.hay@biology.gatech.edu
pointOfContact
asNeeded
Dataset Version: 2014-01-22
Unknown
lat
lon
date
duration
sample
species
thalli_type
mass_initial_herb
mass_final_herb
mass_initial_cage
mass_final_cage
mass_initial_herb_corr
amt_consumed_g
amt_consumed_pcent
theme
None, User defined
latitude
longitude
date
No BCO-DMO term
sample identification
species scientific name (binomial)
mass
featureType
BCO-DMO Standard Parameters
Fiji_2011
service
Deployment Activity
Viti Levu, Fiji
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Killer Seaweeds: Allelopathy against Fijian Corals
https://osprey.bco-dmo.org/project/480717
Killer Seaweeds: Allelopathy against Fijian Corals
<p><em>Extracted from the NSF award abstract:</em></p>
<p>Coral reefs are in dramatic global decline, with reefs commonly converting from species-rich and topographically-complex communities dominated by corals to species- poor and topographically-simplified communities dominated by seaweeds. These phase-shifts result in fundamental loss of ecosystem function. Despite debate about whether coral-to-algal transitions are commonly a primary cause, or simply a consequence, of coral mortality, rigorous field investigation of seaweed-coral competition has received limited attention. There is limited information on how the outcome of seaweed-coral competition varies among species or the relative importance of different competitive mechanisms in facilitating seaweed dominance. In an effort to address this topic, the PI will conduct field experiments in the tropical South Pacific (Fiji) to determine the effects of seaweeds on corals when in direct contact, which seaweeds are most damaging to corals, the role allelopathic lipids that are transferred via contact in producing these effects, the identity and surface concentrations of these metabolites, and the dynamic nature of seaweed metabolite production and coral response following contact. The herbivorous fishes most responsible for controlling allelopathic seaweeds will be identified, the roles of seaweed metabolites in allelopathy vs herbivore deterrence will be studied, and the potential for better managing and conserving critical reef herbivores so as to slow or reverse conversion of coral reef to seaweed meadows will be examined.</p>
<p>Preliminary results indicate that seaweeds may commonly damage corals via lipid- soluble allelochemicals. Such chemically-mediated interactions could kill or damage adult corals and produce the suppression of coral fecundity and recruitment noted by previous investigators and could precipitate positive feedback mechanisms making reef recovery increasingly unlikely as seaweed abundance increases. Chemically-mediated seaweed-coral competition may play a critical role in the degradation of present-day coral reefs. Increasing information on which seaweeds are most aggressive to corals and which herbivores best limit these seaweeds may prove useful in better managing reefs to facilitate resilience and possible recovery despite threats of global-scale stresses. Fiji is well positioned to rapidly use findings from this project for better management of reef resources because it has already erected >260 MPAs, Fijian villagers have already bought-in to the value of MPAs, and the Fiji Locally-Managed Marine Area (FLMMA) Network is well organized to get information to villagers in a culturally sensitive and useful manner.</p>
<p>The broader impacts of this project are far reaching. The project provides training opportunities for 2-2.5 Ph.D students and 1 undergraduate student each year in the interdisciplinary areas of marine ecology, marine conservation, and marine chemical ecology. Findings from this project will be immediately integrated into classes at Ga Tech and made available throughout Fiji via a foundation and web site that have already set-up to support marine conservation efforts in Fiji and marine education efforts both within Fiji and internationally. Business and community leaders from Atlanta (via Rotary International Service efforts) have been recruited to help organize and fund community service and outreach projects in Fiji -- several of which are likely to involve marine conservation and education based in part on these efforts there. Media outlets (National Geographic, NPR, Animal Planet, Audubon Magazine, etc.) and local Rotary clubs will be used to better disseminate these discoveries to the public.</p>
<p>PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH</p>
<p>Rasher DB, Stout EP, Engel S, Kubanek J, and ME Hay. "Macroalgal terpenes function as allelopathic agents against reef corals", Proceedings of the National Academy of Sciences, v. 108, 2011, p. 17726.</p>
<p>Beattie AJ, ME Hay, B Magnusson, R de Nys, J Smeathers, JFV Vincent. "Ecology and bioprospecting," Austral Ecology, v.36, 2011, p. 341.</p>
<p>Rasher DB and ME Hay. "Seaweed allelopathy degrades the resilience and function of coral reefs," Communicative and Integrative Biology, v.3, 2010.</p>
<p>Hay ME, Rasher DB. "Corals in crisis," The Scientist, v.24, 2010, p. 42.</p>
<p>Hay ME and DB Rasher. "Coral reefs in crisis: reversing the biotic death spiral," Faculty 1000 Biology Reports 2010, v.2, 2010.</p>
<p>Rasher DB and ME Hay. "Chemically rich seaweeds poison corals when not controlled by herbivores", Proceedings of the National Academy of Sciences, v.107, 2010, p. 9683.</p>
Killer Seaweeds
largerWorkCitation
project
eng; USA
oceans
Viti Levu, Fiji
2014-01-22
Viti Levu, Fiji (18º13.049’S, 177º42.968’E)
0
BCO-DMO catalogue of parameters from Palatability of Galaxaura & Sargassum to herbivores in the Viti Levu, Fiji from 2011 (Killer Seaweeds project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/488794.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/488795.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/488796.rdf
Name: date
Units: mm/dd/yyyy
Description: <p>date deployed</p>
http://lod.bco-dmo.org/id/dataset-parameter/488797.rdf
Name: duration
Units: hours or days
Description: <p>duration of experiment; seaweed pairs were recollected when approximately 50% of the total biomass (within pairs) was consumed so varied by species</p>
http://lod.bco-dmo.org/id/dataset-parameter/488798.rdf
Name: sample
Units: unitless
Description: <p>identification number of treatment and control seaweed pair</p>
http://lod.bco-dmo.org/id/dataset-parameter/488799.rdf
Name: species
Units: unitless
Description: <p>species of seaweed</p>
http://lod.bco-dmo.org/id/dataset-parameter/488800.rdf
Name: thalli_type
Units: unitless
Description: <p>type of thalli treatment</p>
http://lod.bco-dmo.org/id/dataset-parameter/488801.rdf
Name: mass_initial_herb
Units: grams
Description: <p>initial mass of seaweed from samples exposed to herbivores</p>
http://lod.bco-dmo.org/id/dataset-parameter/488802.rdf
Name: mass_final_herb
Units: grams
Description: <p>final mass of seaweed from samples exposed to herbivores</p>
http://lod.bco-dmo.org/id/dataset-parameter/488803.rdf
Name: mass_initial_cage
Units: grams
Description: <p>initial mass of caged seaweed</p>
http://lod.bco-dmo.org/id/dataset-parameter/488804.rdf
Name: mass_final_cage
Units: grams
Description: <p>final mass of caged seaweed</p>
http://lod.bco-dmo.org/id/dataset-parameter/488805.rdf
Name: mass_initial_herb_corr
Units: grams
Description: <p>initial mass of seaweed exposed to herbivores; corrected for change in caged seaweed</p>
http://lod.bco-dmo.org/id/dataset-parameter/488806.rdf
Name: amt_consumed_g
Units: grams
Description: <p>amount of seaweed consumed; wet weight</p>
http://lod.bco-dmo.org/id/dataset-parameter/488807.rdf
Name: amt_consumed_pcent
Units: percent
Description: <p>percent seaweed consumed by herbivores</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
6776
https://datadocs.bco-dmo.org/file/OJJGvN7hpJk92r/seaweed_palatability.csv
seaweed_palatability.csv
Primary data file for dataset ID 488790
download
https://osprey.bco-dmo.org/dataset/488790/data/download
download
onLine
dataset
<p>In addition to allelochemical induction, we evaluated whether competition affected the growth of either seaweed or changed their susceptibility to herbivory. To evaluate changes in palatability, we then conducted paired feeding assays in the field using a portion of each autogenic treatment and control pair. We removed four branches from each treatment seaweed, spun them uniformly in a salad spinner to remove excess water, weighed the branches and inserted them 5 cm apart on a 60 cm section of 3-stranded rope. Ropes holding control seaweeds were assembled identically (n = 15 rope pairs species-1). Furthermore, a single branch of each seaweed from each pair was spun, weighed and inserted into a 20 cm segment of 3-stranded rope to be deployed as a caged control to assess changes in seaweed mass unrelated to herbivory.</p>
<p>Within the reserve, we deployed autogenic pairs of treatment and control seaweed in a network of pools accessible to herbivorous fishes at both low and high tide. We deployed pairs within approximately 0.50-0.75 m of each other, and caged controls within 1 m of each pair. Replicates were spaced by 5-7 m. We recollected pairs when approximately 50% of the total biomass (within pairs) was consumed; thus, tests for Sargassum lasted 2-24 h and tests for Galaxaura lasted 5-7 days. Following assays, seaweeds were bagged in situ and returned to the laboratory, where they were spun and re-weighed. We calculated the mass of each seaweed consumed using the formula: [Ti(Cf/Ci)] - Tf , where Ti and Tf were the initial and final masses (respectively) of a seaweed exposed to herbivory, and Ci and Cf were the initial and final masses (respectively) of its autogenic caged control protected from herbivory.</p>
<p><strong>Relevant References:</strong></p>
<p>* Rasher DB and ME Hay. "Competition induces allelopathy but suppresses growth and anti-herbivore defense in a chemically rich seaweed". &nbsp;Proceedings of the Royal Society: B-Biological Sciences. vol. 281 no. 1777 20132615,&nbsp;2014&nbsp;(<a href="http://dx.doi.org/10.1098/rspb.2013.2615">http://dx.doi.org/10.1098/rspb.2013.2615</a>).</p>
<p>Rasher DB, Stout EP, Engel S, Kubanek J, and ME Hay. "Macroalgal terpenes function as allelopathic agents against reef corals", Proceedings of the National Academy of Sciences, v. 108, 2011, p. 17726.</p>
<p>Beattie AJ, ME Hay, B Magnusson, R de Nys, J Smeathers, JFV Vincent. "Ecology and bioprospecting," Austral Ecology, v.36, 2011, p. 341.</p>
<p>Rasher DB and ME Hay. "Seaweed allelopathy degrades the resilience and function of coral reefs," Communicative and Integrative Biology, v.3, 2010.</p>
<p>Hay ME, Rasher DB. "Corals in crisis," The Scientist, v.24, 2010, p. 42.</p>
<p>Hay ME and DB Rasher. "Coral reefs in crisis: reversing the biotic death spiral," Faculty 1000 Biology Reports 2010, v.2, 2010.</p>
<p>Rasher DB and ME Hay. "Chemically rich seaweeds poison corals when not controlled by herbivores", Proceedings of the National Academy of Sciences, v.107, 2010, p. 9683.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Deployment: Fiji_2011
Fiji_2011
Hay_GaTech
shoreside
Fiji_2011
Mark E. Hay
Georgia Institute of Technology
Hay_GaTech
shoreside