19:I[42426,["/_next/static/immutable/chunks/1xctgzqre-wsy.js","/_next/static/immutable/chunks/06_-wz6pdtp2b.js","/_next/static/immutable/chunks/30e52g49hg40p.js","/_next/static/immutable/chunks/02yq6tul2z-oh.js","/_next/static/immutable/chunks/10bx_ec2vj7n_.js","/_next/static/immutable/chunks/33bfn03fo8xnt.js","/_next/static/immutable/chunks/0tfjf78scu61b.js","/_next/static/immutable/chunks/31xnvej4n1bi9.js"],"default"] 1a:Tf79,NSF Award Abstract: Tropical coastal marine ecosystems (e.g., coral reefs, seagrass beds, and mangroves) are among the most productive ecosystems in the world providing important services, such as fisheries, to millions of people. Despite this, they are also among the most impaired ecosystems, necessitating improved understanding of the mechanisms that underpin their productivity. This project seeks to understand the key factors that drive ecosystem production in a degraded coastal ecosystem in Haiti using artificial reefs. Past research has shown that artificial reefs have substantial potential to increase the number and diversity of plants and animals, but the extent to which this can be achieved at scales relevant to society remains unknown. This project is constructing clusters of artificial reefs to test how (1) spatial arrangement and (2) fishing pressure (fished/not fished) influence the productivity of seagrass, coral, and fish over the course of four years. The fishing treatment is being implemented through collaborations with local fishers whereby small-scale no-take zones are created around three of the six artificial reef clusters. A unique aspect of the research is that it capitalizes on the experimental design to simultaneously achieve an important conservation initiative, while testing ecological theory. Community engagement and outreach are integrated directly into the research and local fishers are being surveyed to assess the extent to which fishing occurred on any of the artificial reefs. This research represents a novel effort to integrate experimentation with cutting-edge community-based conservation initiatives in one of the most impoverished regions of the world. The project is improving strategies for conservation and reef management. Identifying the factors that regulate the structure and function of ecosystems is a fundamental challenge for ecological theory and applied science. This challenge is often framed within the context of Top-Down (TD) versus Bottom-Up (BU) regulation, but the extent to which this framework can predict processes in complex, real-world ecosystems is not fully understood. It is now widely recognized that TD/BU factors do not act in isolation. For example, in many ecosystems, consumers contribute to both TD (via consumption) and BU (via excretion) pathways. Environmental factors, including human-induced change, can further alter the nature of these interactions. Quantifying the strength of TD and BU pathways and the extent to which they regulate the structure and function in highly dynamic ecosystems requires an experimental system that is sufficiently tractable that all its components can be quantified, while still being representative of real ecosystems. To address this challenge, this research project creates a unique ecosystem-scale artificial reef (AR) experiment in Haiti to test how two factors (AR structure, and fishing pressure) alter the strength of independent and interactive TD and BU pathways to regulate the structure and function of real-world reef ecosystems. Over the course of four years, the production of seagrass (surrounding the ARs), coral (transplanted onto the ARs), and fish (in and around the ARs) is being measured, providing a quantitative assessment of ecosystem-level production across the two treatments. Linear and structural equation models are used to measure the independent and interactive strengths TD and BU pathways, and to identify the suite of directional relationships between each trophic level that best predict overall ecosystem production. Harnessing the ability to use ecosystem-scale experiments and quantify production across all trophic levels in a highly complex, real-world system enables an unprecedented test of TD/BU theory. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.6:["$","$L19",null,{"dataset":{"_id":"873092","description":"","problem":"","acquisition":"

We surveyed all benthic producer species within the seagrass beds using a 1-meter squared (m2) quadrat and a 10-centimeter squared (cm2) quadrat, including three seagrass species, 17 potential macroalgal species, and a cyanobacterial mat complex. Producers were identified to the lowest taxonomic level possible always at least to genus-level, with the exception of the cyanobacterial mat complex which likely consisted of multiple species of cyanobacteria that we were unable to determine with a high degree of specificity. Responses were determined using the modified Braun–Blanquet method.

\n","processing":"

Data Processing:
\nData have not been processed in any way and consistent of only raw observational data..

BCO-DMO processing description:
\n- Adjusted field/parameter names to comply with BCO-DMO naming conventions
\n- Added a conventional header with dataset name, PI names, version date
\n- Added columns for latitude and longitude
\n- Split \"Reef\" column into two columns: \"Cluster\" and \"Reef\"
\n- Converted date to format YYYY-MM-DD per BCO-DMO standards
\n

\n","bcodmoProcessing":"","title":"Seagrass surveys of blade height around artificial reefs in shallow coastal waters off of Abaco, The Bahamas","nickname":"Seagrass surveys of blade height","dataUrl":"","currentState":"Final no updates expected","currentStateId":"7","validated":true,"restricted":false,"version":"1","version_date":"2022-05-12T04:00:00.000Z","abstract":"These data are from seagrass surveys of blade height around artificial reefs in shallow (less than 4 meters) coastal waters in The Bight of Old Robinson, off of Abaco Island, The Bahamas from May to December 2021.","citation":"Allgeier, J. (2022) Seagrass surveys of blade height around artificial reefs in shallow coastal waters off of Abaco, The Bahamas. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-05-12 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.873092.1 [access date]","citationParts":{"identifier":"doi:10.26008/1912/bco-dmo.873092.1","versionDate":"2022-05-12","versionId":"1","year":"2022","title":"Seagrass surveys of blade height around artificial reefs in shallow coastal waters off of Abaco, The Bahamas","authors":"Allgeier, J.","publisher":"Biological and Chemical Oceanography Data Management Office (BCO-DMO)."},"doi":"10.26008/1912/bco-dmo.873092.1","release_date":null,"field_dataset_location":"","temporal_extent":{"start":"2021-06-06T04:00:00.000Z","end":"2021-06-07T04:00:00.000Z"},"temporal":{"resolution":"time:unitDay","type":"time:Interval","start":{"value":"1622952000","label":"2021-06-06"},"end":{"value":"1623038400","label":"2021-06-07"}},"spatial_extent":{"shape":"polygon","center":{"latitude":26.343749981513,"longitude":-77.008949945941},"wkt":"POLYGON ((-77.0104 26.341, -77.0075 26.341, -77.0075 26.3465, -77.0104 26.3465, -77.0104 26.341))","north":26.3465,"east":-77.0075,"south":26.341,"west":-77.0104},"dataset_type":["Other Field Results"],"keywords":["oceans"],"data_files":[{"id":"903646","title":"seagrassbladeheight_2021.csv","url":"https://datadocs.bco-dmo.org/dataset/873092/file/jAABjggtA3ZQvB/seagrassbladeheight_2021.csv","showTableUrl":"https://www.bco-dmo.org/dataset/873092/data/view/903646","description":"Primary data file for dataset ID 873092","filename":"seagrassbladeheight_2021.csv","bytesize":36986,"checksum":{"value":"918ebaf16c3df50573ec19f6cd43baaa","Algorithm":{"_id":"190","name":"MD5"}},"mimetype":"text/csv","fileType":{"_id":"192","name":"Comma Separated Values (.csv)"},"isErddap":"","date":"","isPublicDuringEmbargo":false,"primaryDataFile":true,"showTable":true,"restricted":false}],"supplemental_files":[],"roles":[{"role":{"_id":"138","name":"Principal Investigator"},"performedBy":{"_id":"850020","name":"Jacob Allgeier"},"performedAtOrganization":{"_id":"502586","name":"University of Michigan"}},{"role":{"_id":"133","name":"Contact"},"performedBy":{"_id":"850020","name":"Jacob Allgeier"},"performedAtOrganization":{"_id":"502586","name":"University of Michigan"}},{"role":{"_id":"145","name":"BCO-DMO Data Manager"},"performedBy":{"_id":"835206","name":"Taylor Heyl"},"performedAtOrganization":{"_id":"191","name":"Woods Hole Oceanographic Institution"}}],"deployments":[],"funding":[{"_id":"850017","name":"OCE-1948622","fundingSource":{"_id":"355","name":"NSF Division of Ocean Sciences"},"url":"https://www.nsf.gov/awardsearch/show-award?AWD_ID=1948622"}],"instruments":[],"parameters":[{"_id":"880851","name":"Date","format":"%Y-%m-%d","frictionlessType":"date","description":"

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","units":{"_id":"","name":"unitless"},"type":{"_id":"1070","name":"date","description":"

date; generally reported in GMT as YYYYMMDD (year; month; day); also as MMDD (month; day); EqPac dates are local Hawaii time. ISO_Date format is YYYY-MM-DD (http://www.iso.org/iso/home/standards/iso8601.htm)

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initials of scientific observer (one observer:JEA)

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scientist responsible for the data from a given sampling event

"}},{"_id":"880853","name":"Latitude","format":"","frictionlessType":"number","description":"

latitude of sampling station North

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latitude, in decimal degrees, North is positive, negative denotes South; Reported in some datasets as degrees, minutes

"}},{"_id":"880854","name":"Longitude","format":"","frictionlessType":"number","description":"

longitude of sampling station East (West is negative)

","units":{"_id":"","name":"decimal degrees"},"type":{"_id":"731","name":"longitude","description":"

longitude, in decimal degrees, East is positive, negative denotes West; Reported in some datasets as degrees, minutes

"}},{"_id":"880855","name":"Cluster","format":"","frictionlessType":"string","description":"

coral reef cluster (PN1, PN3, PN5)

","units":{"_id":"","name":"unitless"},"type":{"_id":"1080","name":"Site_ID","description":"

Alphanumeric string used as the ID for a sampling site

"}},{"_id":"880856","name":"Reef","format":"","frictionlessType":"string","description":"

unique reef ID

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"}},{"_id":"880858","name":"Distance","format":"","frictionlessType":"integer","description":"

distace from the reef

","units":{"_id":"","name":"meters (m)"},"type":{"_id":"744809","name":"len_track","description":"

The linear distance along which a sample was collected or an observation was made, such as a beach transect length or the distance a net was towed through the water.

"}},{"_id":"880859","name":"Subsample","format":"","frictionlessType":"integer","description":"

#1-4

","units":{"_id":"","name":"unitless"},"type":{"_id":"960","name":"sample","description":"

unique sample identification or number; any combination of alpha numeric characters; precise definition is file dependent

"}},{"_id":"880860","name":"tt_shoot_count","format":"","frictionlessType":"string","description":"

number of Thalassia testudinum per 10x10cm quadrat

","units":{"_id":"","name":"unitless"},"type":{"_id":"1079","name":"count","description":"

Number of items or individuals counted in sample or sample fraction

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height of random Thalassia testudinum blades 10x10cm quadrat

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height of random Thalassia testudinum blades 10x10cm quadrat

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height of random Thalassia testudinum blades 10x10cm quadrat

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The measurement of an organism or object from base to top

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height of random Thalassia testudinum blades 10x10cm quadrat

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height of random Thalassia testudinum blades 10x10cm quadrat

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"}},{"_id":"880866","name":"sf_shoot_count","format":"","frictionlessType":"string","description":"

number of Syringodium filiforme shoots per 10x10cm quadrat

","units":{"_id":"","name":"unitless"},"type":{"_id":"1079","name":"count","description":"

Number of items or individuals counted in sample or sample fraction

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height of random Syringodium filiforme blades 10x10cm quadrat

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height of random Syringodium filiforme blades 10x10cm quadrat

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height of random Syringodium filiforme blades 10x10cm quadrat

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height of random Syringodium filiforme blades 10x10cm quadrat

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height of random Syringodium filiforme blades 10x10cm quadrat

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The measurement of an organism or object from base to top

"}}],"related_publications":[],"related_datasets":[{"_id":"872990","name":"Fish Surveys","url":"","relation_type":"IsRelatedTo","type_desc":"

The dataset is related to another dataset.

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The dataset is related to another dataset.

\n","relation_desc":"","citation":"Allgeier, J. (2022) Seagrass community composition surveys around artificial reefs in shallow coastal waters off of Abaco Island, The Bahamas. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2022-11-23 doi:10.26008/1912/bco-dmo.873083.2"}],"services":[{"grouping":"","items":[{"name":"View Data","description":"An in-browser view of the primary tabular data file","url":"https://www.bco-dmo.org/dataset/873092/data/view","contentType":"text/html","actionType":"view"}]},{"grouping":"Metadata","items":[{"name":"HTML","description":"A simple HTML page of the dataset metadata","url":"https://www.bco-dmo.org/dataset/873092/description","contentType":"text/html","actionType":"view"},{"name":"PDF","description":"A PDF of the HTML dataset metadata","url":"https://www.bco-dmo.org/dataset/873092/Dataset_description.pdf","contentType":"application/pdf","actionType":"download"},{"name":"ISO 19115-2 (NOAA Profile)","description":"","url":"https://www.bco-dmo.org/dataset/873092/iso","contentType":"application/xml","actionType":"download"}]}],"programs":[],"projects":[{"_id":"850018","name":"Using novel ecosystem-scale experiments to quantify drivers of reef productivity in a heavily impacted coastal ecosystem","acronym":"Reef Production Drivers","description":"$1a"}],"archives":[{"id_value":"10.26008/1912/bco-dmo.873092.1","url":"https://doi.org/10.26008/1912/bco-dmo.873092.1","date_assigned":"2022-11-07","version_date":"2022-05-12","archiver":"Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)","archiver_id":"272"}],"license":{"name":"Creative Commons Attribution 4.0","id":"CC-BY-4.0","uri":"https://creativecommons.org/licenses/by/4.0/","spdxUri":"https://spdx.org/licenses/CC-BY-4.0"},"metrics":{"views":{"count":204},"downloads":{"count":278}}}}]