http://lod.bco-dmo.org/id/dataset/947753
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
2025-01-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Algal consumption data from Tegula in the presence of the predator Cancer productus, displaying anti-predatory responses or not within mesocosms at Bodega Marine Lab in 2018
2025-01-02
publication
2025-01-02
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-04-10
publication
https://doi.org/10.26008/1912/bco-dmo.947753.1
Brian Gaylord
University of California - Davis: Bodega Marine Laboratory
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: Ng, G., Gaylord, B. (2025) Algal consumption data from Tegula in the presence of the predator Cancer productus, displaying anti-predatory responses or not within mesocosms at Bodega Marine Lab in 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-01-02 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.947753.1 [access date]
Dataset Description: <p>See "Related Datasets" section for other datasets to be published in Ng &amp; Gaylord (2025, in-prep).&nbsp; These datasets&nbsp;are also listed on the "Related-Resource" page for that results publication&nbsp;https://www.bco-dmo.org/related-resource/948176<br />
<br />
All datasets in this project can be viewed from the "Dataset Collections" of the project page&nbsp;https://www.bco-dmo.org/project/712799</p> Methods and Sampling: <p>To examine the impacts of fear removal on the strength of trophic cascades, we measured the amount of algae (<em>Ulva spp.</em>) consumed by <em>Tegula funebralis</em> that displayed either an anti-predatory response to its predators, <em>Pisaster ochraceus</em> and <em>Cancer productus,</em> or ignored the predators. Additionally, we used two species of predators with differing consumption rates to test how predator traits might mediate the effect of removal on trophic cascade strength. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018.</p>
<p><em>Pisaster ochraceus</em>,<em> Cancer productus</em>, and <em>Tegula funebralis </em>were collected along the coastline of Sonoma County, California in 2018. Both <em>Pisaster</em> and <em>Tegula</em> were sampled at Carmet Beach (38.372172 N, -123.076438 W), and the <em>Cancer </em>crabs were gathered subtidally from Doran Beach (38.309334 N, -123.048703 W).</p>
<p>When conducting the fear and no-fear treatments for <em>Tegula,</em> we had 20 mesocosms with ten <em>Tegula</em> each when paired with <em>Pisaster</em> as the predator. Ten of the mesocosms were used for the fear treatment where we introduced <em>Pisaster</em> cues from a secondary container to provoke a behavioral fear response in <em>Tegula</em>. The other ten mesocosms contained no <em>Pisaster</em> cues and represented the no-fear treatment. In the fear treatment, we culled <em>Tegula</em> at the baseline rate of 8% per day, and we culled <em>Tegula</em> at the enhanced rate of 33% per day in the no-fear treatment. &nbsp;<em>Ulva</em> sp. was used as the basal resource with <em>Tegula, </em>and we measured the change in <em>Ulva </em>weight over the duration of the experiment<em>.</em> We dried the <em>Ulva</em> for two hours before weighing them. We also had ten mesocosms with just seawater and <em>Ulva</em> as a control to measure the natural degradation of <em>Ulva</em> over the course of the experiment.</p>
<p>We conducted similar fear and no-fear treatments with <em>Tegula</em> except paired with <em>Cancer </em>as the predator. The contrast in the effect of fear on the trophic cascades between the two predators shows how predators of differing dangerousness can influence the role of fear in trophic cascades. Like the <em>Pisaster-Tegula</em> experiments, we used 20 mesocosms with ten <em>Tegula</em> each for the <em>Cancer-Tegula</em> experiments. We used ten of those mesocosms for the fear treatment where <em>Cancer </em>cues are introduced to provoke a behavioral fear response and used the remaining ten mesocosms for the no-fear treatment. In the fear treatment, <em>Tegula</em> were culled at the baseline rate of 34% per day, and in the no-fear treatment, <em>Tegula</em> were culled at the enhanced rate of 57% per day, simulating <em>Cancer </em>predation rates.</p>
<p>To analyze the role of fear and predator identity on amount of algae consumed by <em>Tegula</em>, we ran a generalized linear model with a gamma distribution to account for the heteroscedasticity in the amount of algae consumed. Predator identity and the presence of fear were used as fixed effects. We followed up each generalized linear mixed effects model with explicit <em>a priori</em> planned contrasts with either a Bonferroni or Tukey correction. For <em>Tegula,</em> we compared whether afraid snails consumed significantly different amounts of algae for each predator and whether that difference was different between predators.<br />
<br />
Organism identifiers for taxonomic names used in dataset metadata:<br />
<br />
Scientific Name, Life Science Identifier (LSID)<br />
Pisaster ochraceus,urn:lsid:marinespecies.org:taxname:240755<br />
Cancer productus,urn:lsid:marinespecies.org:taxname:440382<br />
Ulva spp.,urn:lsid:marinespecies.org:taxname:144296<br />
Tegula funebralis, urn:lsid:marinespecies.org:taxname:534190</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1636191 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1636191
completed
Brian Gaylord
University of California - Davis: Bodega Marine Laboratory
707-875-1940
Bodega Marine Laboratory & Department of Evolution and Ecology 2099 Westshore Road, P.O. Box 247
Bodega Bay
CA
94923
USA
bpgaylord@ucdavis.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Date
Containers
Crab
Size
Sex
Table
Initial
Final
Final_shift
Algae_consumed
theme
None, User defined
date_local
tank
treatment
width
sex
sample description
dry_wgt
featureType
BCO-DMO Standard Parameters
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.
Trophic consequences of ocean acidification: Intertidal sea star predators and their grazer prey
https://osprey.bco-dmo.org/project/712799
Trophic consequences of ocean acidification: Intertidal sea star predators and their grazer prey
<p><em>NSF Award Abstract:</em><br />
The absorption of human-produced carbon dioxide into the world's oceans is altering the chemistry of seawater, including decreasing its pH. Such changes, collectively called "ocean acidification", are expected to influence numerous types of sea creatures. This project examines how shifts in ocean pH affect animal behavior and thus interactions among species. It uses a case study system that involves sea star predators, snail grazers that they eat, and seaweeds consumed by the latter. The rocky-shore habitats where these organisms live have a long history of attention, and new findings from this work will further extend an already-large body of marine ecological knowledge. The project provides support for graduate and undergraduate students, including underrepresented students from a nearby community college. The project underpins the development of a new educational module for local K-12 schools. Findings will moreover be communicated to the public through the use of short film documentaries, as well as through established relationships with policy, management, and industry groups, and contacts with the media.</p>
<p>Ocean acidification is a global-scale perturbation. Most research on the topic, however, has examined effects on single species operating in isolation, leaving interactions among species underexplored. This project confronts this knowledge gap by considering how ocean acidification may shift predator-prey relationships through altered behavior. It targets as a model system sea stars, their gastropod grazer prey, and macoalgae consumed by the latter, via four lines of inquiry. 1) The project examines the functional response of the focal taxa to altered seawater chemistry, using experiments that target up to 16 discrete levels of pH. This experimental design is essential for identifying nonlinearities and tipping points. 2) The project addresses both consumptive and non-consumptive components of direct and indirect species interactions. The capacity of ocean acidification to influence such links is poorly known, and better understanding of this issue is a recognized priority. 3) The project combines controlled laboratory experiments with field trials that exploit tide pools and their unique pH signatures as natural mesocosms. Field tests of ocean acidification effects are relatively rare and are sorely needed. 4) A final research phase expands upon the above three components to address effects of ocean acidification on multiple additional taxa that interact in rocky intertidal systems, to provide a broad database that may have utility for future experiments or modeling.</p>
BOAR Trophic
largerWorkCitation
project
eng; USA
oceans
-123.076438
-123.048703
38.309334
38.372172
2018-10-19
2018-10-24
Central California coast, USA
0
BCO-DMO catalogue of parameters from Algal consumption data from Tegula in the presence of the predator Cancer productus, displaying anti-predatory responses or not within mesocosms at Bodega Marine Lab in 2018
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/948191.rdf
Name: Date
Units: unitless
Description: <p>Date of data collection. Reported in local time zone US Pacific (PST/PDT).</p>
http://lod.bco-dmo.org/id/dataset-parameter/948192.rdf
Name: Containers
Units: unitless
Description: <p>Unique identifier for individual mesocosm</p>
http://lod.bco-dmo.org/id/dataset-parameter/948193.rdf
Name: Crab
Units: unitless
Description: <p>Presence or absence of crab cues for the experiment (yes/no)</p>
http://lod.bco-dmo.org/id/dataset-parameter/948194.rdf
Name: Size
Units: millimeters (mm)
Description: <p>Carapace width of the crab used in mm if applicable</p>
http://lod.bco-dmo.org/id/dataset-parameter/948195.rdf
Name: Sex
Units: unitless
Description: <p>Sex of the crab used if applicable</p>
http://lod.bco-dmo.org/id/dataset-parameter/948196.rdf
Name: Table
Units: unitless
Description: <p>Indicates which of the two sea table were used in which the containers were housed in (left/right)</p>
http://lod.bco-dmo.org/id/dataset-parameter/948197.rdf
Name: Initial
Units: grams (g)
Description: <p>Starting dry weight of the algae</p>
http://lod.bco-dmo.org/id/dataset-parameter/948198.rdf
Name: Final
Units: grams (g)
Description: <p>Final dry weight of the algae if the algae has been mostly consumed</p>
http://lod.bco-dmo.org/id/dataset-parameter/948199.rdf
Name: Final_shift
Units: grams (g)
Description: <p>Final dry weights moved up by one time point to allow for easy calculations of algae consumed as seen in the ‘Algae_consumed’ column.</p>
http://lod.bco-dmo.org/id/dataset-parameter/948200.rdf
Name: Algae_consumed
Units: grams (g)
Description: <p>The difference between starting and ending dry weight for a given piece of algae</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
3016
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/f5f8a0be-f6c5-4eeb-b405-ee4ca876fe0a/content
download
https://doi.org/10.26008/1912/bco-dmo.947753.1
download
onLine
dataset
<p>To examine the impacts of fear removal on the strength of trophic cascades, we measured the amount of algae (<em>Ulva spp.</em>) consumed by <em>Tegula funebralis</em> that displayed either an anti-predatory response to its predators, <em>Pisaster ochraceus</em> and <em>Cancer productus,</em> or ignored the predators. Additionally, we used two species of predators with differing consumption rates to test how predator traits might mediate the effect of removal on trophic cascade strength. The experiment was conducted within laboratory mesocosms at Bodega Marine Lab in 2018.</p>
<p><em>Pisaster ochraceus</em>,<em> Cancer productus</em>, and <em>Tegula funebralis </em>were collected along the coastline of Sonoma County, California in 2018. Both <em>Pisaster</em> and <em>Tegula</em> were sampled at Carmet Beach (38.372172 N, -123.076438 W), and the <em>Cancer </em>crabs were gathered subtidally from Doran Beach (38.309334 N, -123.048703 W).</p>
<p>When conducting the fear and no-fear treatments for <em>Tegula,</em> we had 20 mesocosms with ten <em>Tegula</em> each when paired with <em>Pisaster</em> as the predator. Ten of the mesocosms were used for the fear treatment where we introduced <em>Pisaster</em> cues from a secondary container to provoke a behavioral fear response in <em>Tegula</em>. The other ten mesocosms contained no <em>Pisaster</em> cues and represented the no-fear treatment. In the fear treatment, we culled <em>Tegula</em> at the baseline rate of 8% per day, and we culled <em>Tegula</em> at the enhanced rate of 33% per day in the no-fear treatment. &nbsp;<em>Ulva</em> sp. was used as the basal resource with <em>Tegula, </em>and we measured the change in <em>Ulva </em>weight over the duration of the experiment<em>.</em> We dried the <em>Ulva</em> for two hours before weighing them. We also had ten mesocosms with just seawater and <em>Ulva</em> as a control to measure the natural degradation of <em>Ulva</em> over the course of the experiment.</p>
<p>We conducted similar fear and no-fear treatments with <em>Tegula</em> except paired with <em>Cancer </em>as the predator. The contrast in the effect of fear on the trophic cascades between the two predators shows how predators of differing dangerousness can influence the role of fear in trophic cascades. Like the <em>Pisaster-Tegula</em> experiments, we used 20 mesocosms with ten <em>Tegula</em> each for the <em>Cancer-Tegula</em> experiments. We used ten of those mesocosms for the fear treatment where <em>Cancer </em>cues are introduced to provoke a behavioral fear response and used the remaining ten mesocosms for the no-fear treatment. In the fear treatment, <em>Tegula</em> were culled at the baseline rate of 34% per day, and in the no-fear treatment, <em>Tegula</em> were culled at the enhanced rate of 57% per day, simulating <em>Cancer </em>predation rates.</p>
<p>To analyze the role of fear and predator identity on amount of algae consumed by <em>Tegula</em>, we ran a generalized linear model with a gamma distribution to account for the heteroscedasticity in the amount of algae consumed. Predator identity and the presence of fear were used as fixed effects. We followed up each generalized linear mixed effects model with explicit <em>a priori</em> planned contrasts with either a Bonferroni or Tukey correction. For <em>Tegula,</em> we compared whether afraid snails consumed significantly different amounts of algae for each predator and whether that difference was different between predators.<br />
<br />
Organism identifiers for taxonomic names used in dataset metadata:<br />
<br />
Scientific Name, Life Science Identifier (LSID)<br />
Pisaster ochraceus,urn:lsid:marinespecies.org:taxname:240755<br />
Cancer productus,urn:lsid:marinespecies.org:taxname:440382<br />
Ulva spp.,urn:lsid:marinespecies.org:taxname:144296<br />
Tegula funebralis, urn:lsid:marinespecies.org:taxname:534190</p>
Specified by the Principal Investigator(s)
<p>See "Supplemental Files" for analysis package (R-language).</p>
Specified by the Principal Investigator(s)
* The originally provided "Cancer tegula phase 3 stats.csv" with no modifications was packaged along with related dataset (947757) files and R-scripts into Algal_consumption_analysis_package.zip and attached as a supplemental file.
* Table from submitted file "Cancer tegula phase 3 stats.csv" was imported into the BCO-DMO data system for this dataset and will appear as 947753_v1_algal-consumption_tegula_c-productus.csv
** In the BCO-DMO data system missing data identifiers are displayed according to the format of data you access. For example, in csv files it will be blank (null) values. In Matlab .mat files it will be NaN values. When viewing data online at BCO-DMO, the missing value will be shown as blank (null) values.
* Column names adjusted to conform to BCO-DMO naming conventions designed to support broad re-use by a variety of research tools and scripting languages. [Only numbers, letters, and underscores. Can not start with a number]
* Date converted to ISO 8601 format
* Taxonomic identifiers added to the metadata (Life Science Identifiers (LSID)). Names matched using the World Register of Marine Species (WoRMS) on 2024-01-02.
* Bounding box for dataset determined by sampling locations provided and location of experiment at Bodega Bay Marine Laboratory (38.3180548,-123.0743098).
Specified by BCO-DMO Data Managers
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