http://lod.bco-dmo.org/id/dataset/818338
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
2020-07-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Initial mass and growth data, as change in mass over 33 days, for Acropora millepora corals exposed to one of nine experimental treatments of killer seaweeds, Fiji, 2014
2020-07-13
publication
2020-07-13
revision
BCO-DMO Linked Data URI
2020-07-13
creation
http://lod.bco-dmo.org/id/dataset/818338
Mark E. Hay
Georgia Institute of Technology
principalInvestigator
Cody Clements
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., Clements, C. (2020) Initial mass and growth data, as change in mass over 33 days, for Acropora millepora corals exposed to one of nine experimental treatments of killer seaweeds, Fiji, 2014. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2020-07-13 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/818338 [access date]
Coral growth data Dataset Description: <p>Initial mass and growth data, as change in mass over 33 days, for <em>Acropora millepora</em> corals exposed to&nbsp;one of nine experimental treatments of killer seaweeds. Experiments investigated how direct contact versus close proximity (approx. 1.5 cm) with macroalgae (Galaxaura rugosa, Sargassum polycystum) impacted the growth and other factors.&nbsp;</p>
<p>These data are presented in Figure 1 of Clements et al, 2020.&nbsp;See 'Master ID Sheet.xlsx' in Supplemental Files for the treatment descriptions.</p> Methods and Sampling: <p><strong>Methodology:</strong></p>
<p>To create standardized units of coral, nine ~6-8 cm length branches of Acropora millepora were collected from twelve separate colonies (108 branches total) within Votua’s MPA during October 2014 and individually epoxied (Emerkit) into the cut-off necks of inverted plastic bottles. These were then anchored on the reef by screwing them individually into an upturned bottle cap embedded within the substrate (see Video S1 at http://www.int-res.com/articles/suppl/m586p011_supp/ for an example of this experimental method) and allowed to acclimate for ~1 month. Following the acclimation period, corals were detached from the substratum and weighed in the field using an electronic scale (OHAUS Scout Pro) enclosed within a plastic container that was mounted to a tripod holding it above the water surface. Eighteen to 24 hrs before the weighing session, each coral’s bottle-top/epoxy base was brushed with a toothbrush to remove fouling organisms. Before weighing, each coral was gently shaken 30 times to remove excess water, and then weighed, immediately placed back into the water, and reattached to the substrate.&nbsp;</p>
<p>Initial mass of coral branches did not differ among treatments (Linear mixed effect (LME) model, p = 0.328; mean mass ranged from 13.4–18.9 g).</p>
<p>Corals were subjected to one of nine experimental treatments for 33 days: (1) direct contact with four thalli of Galaxaura rugosa (live seaweed), (2) close proximity (i.e. ~1.5cm away, no contact) to four thalli of Galaxaura, (3) direct contact with four Galaxaura mimics (microfiber dust cloth), (4) close proximity to four Galaxaura mimics, (5) direct contact with four Sargassum polycystum thalli (live seaweed), (6) close proximity to four Sargassum thalli, (7) direct contact with four Sargassum mimics (plastic aquarium plants), (8) close proximity to four Sargassum mimics, or (9) no seaweed or mimic exposure (control) (n = 9-13 per treatment). &nbsp;</p>
<p><strong>Sampling and analytical procedures:</strong></p>
<p>At day 33, corals were detached from the substratum and reweighed in the field as previously described. Following the weighing session, corals were separated from their bottle/epoxy base and were weighed separately to determine changes in coral mass alone during the 33-day period (i.e. without the weight of the epoxy and bottle neck base).</p>
<p>Differences in relative growth (as a percentage of initial weight) among treatments were analyzed using LME models in the R package nlme [Pinheiro&nbsp;et al, 2017], with coral colony used as a random factor in all analyses. When necessary, the varIdent argument was used to control for heteroscedasticity. Subsequent pairwise comparisons were performed using the generalized linear hypothesis test (glht) in the R package multcomp [Hothorn et al, 2008].</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
onGoing
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
Cody Clements
Georgia Institute of Technology
423-509-7943
cclements9@gatech.edu
pointOfContact
asNeeded
Unknown
Sample_ID
Number
Treatment_ID
Colony
Mass_Change_pcent
Mass_initial
electronic scale (OHAUS Scout Pro)
theme
None, User defined
sample identification
treatment
growth
mass
featureType
BCO-DMO Standard Parameters
scale or balance
instrument
BCO-DMO Standard Instruments
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
biota
oceans
177.7173056
177.7173056
-18.2164722
-18.2164722
2020-07-13
Viti Levu, Fiji (18º13.049’S, 177º42.968’E)
0
BCO-DMO catalogue of parameters from Initial mass and growth data, as change in mass over 33 days, for Acropora millepora corals exposed to one of nine experimental treatments of killer seaweeds, Fiji, 2014
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/818378.rdf
Name: Sample_ID
Units: unitless
Description: <p>The ID for each sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/818379.rdf
Name: Number
Units: unitless
Description: <p>The sequential numbering order of samples in our data sheet (for organization purposes)</p>
http://lod.bco-dmo.org/id/dataset-parameter/818380.rdf
Name: Treatment_ID
Units: unitless
Description: <p>Treatment IDs are described in the file Master ID Sheet.xlsx</p>
http://lod.bco-dmo.org/id/dataset-parameter/818381.rdf
Name: Colony
Units: unitless
Description: <p>The colony that a sample was originally sourced from in the field for the experiment</p>
http://lod.bco-dmo.org/id/dataset-parameter/818382.rdf
Name: Mass_Change_pcent
Units: percent
Description: <p>The percent change in coral mass during the 33 day experimental period.</p>
http://lod.bco-dmo.org/id/dataset-parameter/818523.rdf
Name: Mass_initial
Units: grams
Description: <p>Initial coral mass</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
14465
https://datadocs.bco-dmo.org/docs/Killer_Seaweeds/data_docs/Master_ID_Sheet.xlsx
Master list of sample id's, coral colony genotype, treatment, and treatment description
download
https://osprey.bco-dmo.org/dataset/818338/data/download
download
onLine
dataset
<p><strong>Methodology:</strong></p>
<p>To create standardized units of coral, nine ~6-8 cm length branches of Acropora millepora were collected from twelve separate colonies (108 branches total) within Votua’s MPA during October 2014 and individually epoxied (Emerkit) into the cut-off necks of inverted plastic bottles. These were then anchored on the reef by screwing them individually into an upturned bottle cap embedded within the substrate (see Video S1 at http://www.int-res.com/articles/suppl/m586p011_supp/ for an example of this experimental method) and allowed to acclimate for ~1 month. Following the acclimation period, corals were detached from the substratum and weighed in the field using an electronic scale (OHAUS Scout Pro) enclosed within a plastic container that was mounted to a tripod holding it above the water surface. Eighteen to 24 hrs before the weighing session, each coral’s bottle-top/epoxy base was brushed with a toothbrush to remove fouling organisms. Before weighing, each coral was gently shaken 30 times to remove excess water, and then weighed, immediately placed back into the water, and reattached to the substrate.&nbsp;</p>
<p>Initial mass of coral branches did not differ among treatments (Linear mixed effect (LME) model, p = 0.328; mean mass ranged from 13.4–18.9 g).</p>
<p>Corals were subjected to one of nine experimental treatments for 33 days: (1) direct contact with four thalli of Galaxaura rugosa (live seaweed), (2) close proximity (i.e. ~1.5cm away, no contact) to four thalli of Galaxaura, (3) direct contact with four Galaxaura mimics (microfiber dust cloth), (4) close proximity to four Galaxaura mimics, (5) direct contact with four Sargassum polycystum thalli (live seaweed), (6) close proximity to four Sargassum thalli, (7) direct contact with four Sargassum mimics (plastic aquarium plants), (8) close proximity to four Sargassum mimics, or (9) no seaweed or mimic exposure (control) (n = 9-13 per treatment). &nbsp;</p>
<p><strong>Sampling and analytical procedures:</strong></p>
<p>At day 33, corals were detached from the substratum and reweighed in the field as previously described. Following the weighing session, corals were separated from their bottle/epoxy base and were weighed separately to determine changes in coral mass alone during the 33-day period (i.e. without the weight of the epoxy and bottle neck base).</p>
<p>Differences in relative growth (as a percentage of initial weight) among treatments were analyzed using LME models in the R package nlme [Pinheiro&nbsp;et al, 2017], with coral colony used as a random factor in all analyses. When necessary, the varIdent argument was used to control for heteroscedasticity. Subsequent pairwise comparisons were performed using the generalized linear hypothesis test (glht) in the R package multcomp [Hothorn et al, 2008].</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
- data submitted in Excel file "Coral Growth Data.xlsx" sheet "Mass Change" extracted to csv<br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions</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
electronic scale (OHAUS Scout Pro)
electronic scale (OHAUS Scout Pro)
PI Supplied Instrument Name: electronic scale (OHAUS Scout Pro) Instrument Name: scale or balance Instrument Short Name: Instrument Description: Devices that determine the mass or weight of a sample. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB13/