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OAS accession Detail for 0277825, meta_version: 1. Current meta_version is: 1
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| accessions_id: | 0277825 | archive |
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| Title: | Counts of Protobranch bivalves collected in a series of epibenthic sled samples taken on R/V Endeavor cruise EN447 in the Western North Atlantic (34-39N, 68-70W) in 2008 (ENAB project) (NCEI Accession 0277825) |
| Abstract: | This dataset contains biological and survey - biological data collected on R/V Endeavor during cruise EN447 in the North Atlantic Ocean from 2008-06-04 to 2008-06-21. These data include depth and species. The instruments used to collect these data include Epibenthic Sled. These data were collected by Michael Rex and Ron J. Etter of University of Massachusetts Boston as part of the "Evolution in the North Atlantic Basin (ENAB)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2021-12-28. The following is the text of the dataset description provided by BCO-DMO: Counts of Protobranch bivalves collected in a series of epibenthic sled samples taken in the western North Atlantic. Dataset Description: Protobranch bivalves collected in a series of epibenthic sled samples taken in the western North Atlantic from 1000-5200 m depth. The project investigators are only using the mollusks, all other taxa are unsorted, stored in 95% ethanol and available for others to use. |
| Date received: | 20211228 |
| Start date: | 20080604 |
| End date: | 20080621 |
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| West boundary: | -71.228 |
| East boundary: | -68.076 |
| North boundary: | 39.88 |
| South boundary: | 34.915 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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| Supplementary information: | Acquisition Description: Using an epibenthic sled, sampling was conducted at 25 stations along a transect from south of Cape Cod to near Bermuda and ranging in depth from 1000 to 5200m. After samples were brought on board, the mud was sieved (1mm mesh) using cold (2-3 degrees C) seawater and the bivalves and gastropods were picked from the samples, identified to genus or species and the first 20-30 individuals frozen (-80) in individual 1.5 ml tubes with any additional individuals placed in ethanol in a common station tube and then stored at -80. All other taxa were placed unsorted in 95% ethanol and are now stored at 4 degrees C. Because the initial sorting was done at sea under less than ideal conditions, the investigators resorted the samples under a microscope in the lab. So far, over 2600 protobranchs distributed among 27 species have been collected. Sampling success was good, although somewhat sporadic, especially early in the cruise. The investigators used 2 different sleds - a heavy version with closing door and a lighter version where the doors remained open on ascent. The heavier sled was used for the first 12 samples. Because the collections from the heavier sled were less than expected (based on previous epibenthic sled samples of this area). the lighter sled was used for the remainder of the cruise. The lighter sled usually returned with much better samples, although this could also reflect the investigators' increased experience in sampling later in the cruise. Samples are currently stored at UMass, but will be moved to the MCZ at Harvard for more permanent storage and curation. |
| Availability date: | |
| Metadata version: | 1 |
| Keydate: | 2023-04-30 04:24:04+00 |
| Editdate: | 2023-04-30 04:25:00+00 |