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OAS accession Detail for 0299436
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| accessions_id: | 0299436 | archive |
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| Title: | Data from minnow traps deployed to accompany scallop survival assays conducted as part of a larger concurrent study with Artificial Seagrass Units (ASU) in NC from July to September 2018 (NCEI Accession 0299436) |
| Abstract: | This dataset contains biological, physical, and survey - biological data collected from 2018-07-04 to 2018-09-04. These data include common_name, salinity, and water temperature. The instruments used to collect these data include minnow trap. These data were collected by Amy Yarnall and F. Joel Fodrie of University of North Carolina at Chapel Hill as part of the "Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms (Habitat Fragmentation)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2024-10-11. The following is the text of the dataset description provided by BCO-DMO: Dataset Description: CPUE = Catch Per Unit Effort ASU = artificial seagrass unit Methods and Sampling: To parse the influences of fragmentation components on scallop survival, we generated nine unique landscape grids of 15 × 15 cells. Each cell was the size of an ASU, making the landscape area = 234 m 2 (18-m × 13-m). These landscapes were part of a larger-scale concurrent experiment, during which we examined seagrass fragmentation effects on estuarine faunal communities (Yarnall et al. In Press). Landscapes were designed to be treatments along orthogonal axes of seagrass percent cover of the landscape footprint (10%, 35%, 60%) and fragmentation per se , indexed by percolation probability (0.1, 0.35, 0.59). To examine the influence of potential scallop predator community density on scallop survival, we deployed Gee-style minnow traps (41-cm x 22-cm cylinders, 0.3-cm galvanized wire-mesh, with 4-cm dia. funneled openings) baited with ~8 pieces of dry dog food within landscapes to accompany each survival assay. During each survival assay, two traps were haphazardly deployed on ASUs in each landscape >1 m from any scallop tether. During the first assay, traps were only checked after 24 h. For subsequent assays, to better match tether check frequency, traps were checked at 6 h and rechecked at 24 h (i.e., an 18-h deployment). Once it was determined that 24-h cumulative scallop survival would be analyzed, we pooled all fauna caught in 6-h and 24-h traps to obtain total catch per unit effort (a common faunal density metric) after a 24-h deployment. All caught fauna were identified to the species level, enumerated, and released. Depth note: Depth ranges were similar across all sites as they were located on a single shoal (Oscar Shoal in Back Sound, NC, USA). Depths typically ranged from Organism identifiers (common name, scientific name, LSID): bay scallop, Argopecten irradians, urn:lsid:marinespecies.org:taxname:156817 eelgrass, Zostera marina, urn:lsid:marinespecies.org:taxname:495077 * see Supplemental File "Species List" for additional taxonomic information to accompany the trap data. |
| Date received: | 20241011 |
| Start date: | 20180704 |
| End date: | 20180904 |
| Seanames: | |
| West boundary: | -76.604 |
| East boundary: | -76.588 |
| North boundary: | 34.706 |
| South boundary: | 34.7 |
| Observation types: | biological, physical, survey - biological |
| Instrument types: | trap |
| Datatypes: | SALINITY, SPECIES IDENTIFICATION, WATER TEMPERATURE |
| Submitter: | |
| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
| Collecting institutions: | University of North Carolina - Chapel Hill |
| Contributing projects: | |
| Platforms: | |
| Number of observations: | |
| Supplementary information: | |
| Availability date: | |
| Metadata version: | 1 |
| Keydate: | 2024-11-29 15:59:26+00 |
| Editdate: | 2024-11-29 15:59:46+00 |