http://lod.bco-dmo.org/id/dataset/894249 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 2023-04-19 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Results from predation assays (squidpops) conducted along rocky reefs of the Western coast of San Cristobal, Galapagos from June to November 2021 to determine fish predation intensity across a spatial and temporal temperature gradient 2024-05-17 publication 2024-05-17 revision Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA) 2024-05-17 publication https://doi.org/10.26008/1912/bco-dmo.894249.1 John Bruno University of North Carolina at Chapel Hill 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: Bruno, J. (2024) Results from predation assays (squidpops) conducted along rocky reefs of the Western coast of San Cristobal, Galapagos from June to November 2021 to determine fish predation intensity across a spatial and temporal temperature gradient. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-05-17 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.894249.1 [access date] Squidpop Assays 2021 Dataset Description: Methods and Sampling: &lt;p&gt;The squidpop assays consiste of the deployment of 25 stakes with small pieces of squid on top for one hour by burying the stakes in sand on the edge of the reefs. After one hour, the number of baits eaten is quantified to estimate predation intensity. Trials were done in six localities during the months of July and November. The study sites were rocky reefs along the Western coast of San Cristobal, the eastern Island of the Galapagos Archipelago.&lt;/p&gt; Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1737071 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1737071 completed John Bruno University of North Carolina at Chapel Hill 919-360-7651 CB#3280, Department of Biology UNC Chapel Hill Chapel Hill NC 27599-3280 USA jbruno@unc.edu pointOfContact asNeeded Dataset Version: 1 Unknown Year Month Date Time_Local ISO_DateTime_Local ISO_DateTime_UTC Code1 Locality Latitude Longitude Season Habitat Depth Temperature Squidpop Eaten Code2 theme None, User defined year month of year date time_local ISO_DateTime_Local ISO_DateTime_UTC sample identification site latitude longitude season site description depth water temperature at measurement depth number sample description featureType BCO-DMO Standard Parameters Squidpop 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. The Role of Temperature in Regulating Herbivory and Algal Biomass in Upwelling Systems http://github.com/johnfbruno/Galapagos_NSF.git The Role of Temperature in Regulating Herbivory and Algal Biomass in Upwelling Systems <p><em>NSF Award Abstract:</em><br /> A well-known pattern in coastal marine systems is a positive association between the biomass of primary producers and the occurrence or intensity of upwelling. This is assumed to be caused by the increase in nutrient concentration associated with upwelling, enabling higher primary production and thus greater standing algal biomass. However, upwelling also causes large, rapid declines in water temperature. Because the metabolism of fish and invertebrate herbivores is temperature-dependent, cooler upwelled water could reduce consumer metabolism and grazing intensity. This could in turn lead to increased standing algal biomass. Thus upwelling could influence both bottom-up and top-down control of populations and communities of primary producers. The purpose of this study is to test the hypothesis that grazing intensity and algal biomass are, in part, regulated by temperature via the temperature-dependence of metabolic rates. Broader impacts include the training and retention of minority students through UNC's Course Based Undergraduate Research program, support of undergraduate research, teacher training, and various outreach activities.</p> <p>The investigators will take advantage of the uniquely strong spatiotemporal variance in water temperature in the Galápagos Islands to compare grazing intensity and primary production across a natural temperature gradient. They will combine field monitoring, statistical modeling, grazing assays, populations-specific metabolic measurements, and in situ herbivore exclusion and nutrient addition to measure the effects of temperature on pattern and process in shallow subtidal communities. The researchers will also test the hypothesis that grazer populations at warmer sites and/or during warmer seasons are less thermally sensitive, potentially due to acclimatization or adaptation. Finally, the investigators will perform a series of mesocosm experiments to measure the effect of near-future temperatures on herbivores, algae, and herbivory. This work could change the way we view upwelling systems, particularly how primary production is regulated and the temperature-dependence of energy transfer across trophic levels.</p> Temperature and Herbivory largerWorkCitation project eng; USA oceans -89.820556 -85.584444 -0.926667 -0.702778 2021-06-29 2021-11-15 0 BCO-DMO catalogue of parameters from Results from predation assays (squidpops) conducted along rocky reefs of the Western coast of San Cristobal, Galapagos from June to November 2021 to determine fish predation intensity across a spatial and temporal temperature gradient 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/927849.rdf Name: Year Units: unitless Description: <p>Year when the assay was conducted</p> http://lod.bco-dmo.org/id/dataset-parameter/927850.rdf Name: Month Units: unitless Description: <p>Month when the assay was conducted</p> http://lod.bco-dmo.org/id/dataset-parameter/927851.rdf Name: Date Units: unitless Description: <p>Date of assay</p> http://lod.bco-dmo.org/id/dataset-parameter/927852.rdf Name: Time_Local Units: unitless Description: <p>Time when the squidpop were deployed; local time zone (GMT-6:00)</p> http://lod.bco-dmo.org/id/dataset-parameter/927853.rdf Name: ISO_DateTime_Local Units: unitless Description: <p>Date and time when the squidpop were deployed in ISO 8601 format; local time zone (GMT-6:00)</p> http://lod.bco-dmo.org/id/dataset-parameter/927854.rdf Name: ISO_DateTime_UTC Units: unitless Description: <p>Date and time when the squidpop were deployed in ISO 8601 format; UTC time zone</p> http://lod.bco-dmo.org/id/dataset-parameter/927855.rdf Name: Code1 Units: unitless Description: <p>Combination of month and locality</p> http://lod.bco-dmo.org/id/dataset-parameter/927856.rdf Name: Locality Units: unitless Description: <p>Location where assay was conducted</p> http://lod.bco-dmo.org/id/dataset-parameter/927857.rdf Name: Latitude Units: decimal degrees Description: <p>Latitude of site where assay was conducted; negative values = South</p> http://lod.bco-dmo.org/id/dataset-parameter/927858.rdf Name: Longitude Units: decimal degrees Description: <p>Longitude of site where assay was conducted; negative values = West</p> http://lod.bco-dmo.org/id/dataset-parameter/927859.rdf Name: Season Units: unitless Description: <p>Whether the assay was conducted during the cold (May-December) or warm season (January-April)</p> http://lod.bco-dmo.org/id/dataset-parameter/927860.rdf Name: Habitat Units: unitless Description: <p>Habitat type (reef, rocky reef, or beach)</p> http://lod.bco-dmo.org/id/dataset-parameter/927861.rdf Name: Depth Units: meters (m) Description: <p>Depth of deployment</p> http://lod.bco-dmo.org/id/dataset-parameter/927862.rdf Name: Temperature Units: degrees Celsius Description: <p>Water temperature</p> http://lod.bco-dmo.org/id/dataset-parameter/927863.rdf Name: Squidpop Units: unitless Description: <p>Number of squidpop deployed</p> http://lod.bco-dmo.org/id/dataset-parameter/927864.rdf Name: Eaten Units: unitless Description: <p>Whether the bait was eaten (1) or not (0)</p> http://lod.bco-dmo.org/id/dataset-parameter/927865.rdf Name: Code2 Units: unitless Description: <p>Combination of month, locality, and squidpop number</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 39135 https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/9386b643-f22a-4af6-a0c4-022ea4e34f28/content download https://doi.org/10.26008/1912/bco-dmo.894249.1 download onLine dataset &lt;p&gt;The squidpop assays consiste of the deployment of 25 stakes with small pieces of squid on top for one hour by burying the stakes in sand on the edge of the reefs. After one hour, the number of baits eaten is quantified to estimate predation intensity. Trials were done in six localities during the months of July and November. The study sites were rocky reefs along the Western coast of San Cristobal, the eastern Island of the Galapagos Archipelago.&lt;/p&gt; Specified by the Principal Investigator(s) - Imported original files &quot;SquidpopData_2021_updated.xlsx&quot; (data) and &quot;Coordinates_Squidpop2021.xlsx&quot; (site list with coordinates) into the BCO-DMO system. - Joined the latitude and longitude columns from the site list to the primary data file. - Renamed fields to comply with BCO-DMO naming conventions. - Replaced &quot;July2&quot; with &quot;July&quot; in the Month column. - Converted Date column to YYYY-MM-DD format. - Created date-time fields in ISO8601 format (both Local and UTC). - Made latitude and longitude values negative (in the southern and western hemispheres) - Saved the final file as &quot;894249_v1_squidpop_assays_2021.csv&quot;. 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 PI Supplied Instrument Name: Instrument Name: Squidpop Instrument Short Name: Instrument Description: The squidpop assay is described in detail in Duffy et al., 2015 (doi: 10.1371/journal.pone.0142994). In summary, the squidpop consists of a standard prey item: a small piece of dried squid mantle tissue, tethered to a fiberglass plant stake with light monofilament fishing line. The squidpop is assembled by first punching a 1.3-centimeter (cm) diameter disc from the squid mantle using a cork borer. A length of monofilament line is threaded through the squid disc and tied to it securely, then the other end of the line is attached to the end of the plant stake with electrical tape, leaving 1-2 cm of line with the squid piece on the end. The short length of the line helps prevent tangling the tethers when squidpops are bundled together. Squidpops are deployed by pushing the stakes securely into the substratum. The stakes are typically arranged in one or two rows, but the spatial arrangement is of secondary importance to ensuring that the squidpops can be reliably relocated and retrieved at the end of the deployment. Squidpops are assessed for the presence or absence of the squid bait after some period of time.