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OAS accession Detail for 0278263
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| accessions_id: | 0278263 | archive |
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| Title: | Kelp and urchin mean densities from Aleutian habitat surveys 2008-2010 (Kelp Forest Apex Predator Collapse project) (NCEI Accession 0278263) |
| Abstract: | This dataset contains biological and survey - biological data collected at Aleutian Islands, R/V Point Sur, and R/V Thomas G. Thompson during cruises PS0914, PS1011, and TN219 and deployment Aleutian_kelp_forest_surveys_2008-2010 in the Bering Sea from 2008-06-02 to 2010-07-10. These data include abundance and depth. The instruments used to collect these data include Diving Mask and Snorkel and Self-Contained Underwater Breathing Apparatus. These data were collected by Matthew Edwards of San Diego State University and Brenda Konar of University of Alaska Fairbanks as part of the "Collaborative Research: Kelp forest interaction webs in the Aleutian Archipelago: patterns and mechanism of change following the collapse of an apex predator (Kelp Forest Apex Predator Collapse)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2021-05-24. The following is the text of the dataset description provided by BCO-DMO: Kelp and urchin mean densities from Aleutian habitat surveys 2008-2010 Dataset Description: Data are reported as means. The kelp means come from twenty 0.25m^2 quadrats placed at each site. The urchin means either come from twenty quadrats or fewer if 200 urchins were counted first (i.e., if 200 urchins were counted in two quadrats, then the mean only comes from these two quadrats). |
| Date received: | 20210524 |
| Start date: | 20080602 |
| End date: | 20100710 |
| Seanames: | |
| West boundary: | 173.175 |
| East boundary: | -165.823 |
| North boundary: | 54.168 |
| South boundary: | 51.407 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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| Supplementary information: | Acquisition Description: These data come from dive surveys. Depths are typically around 20 or 40 ft in rocky substrates. We randomly place twenty 0.25m^2 quadrats at each site and count and identify kelp stipes. A second diver does the same for sea urchins. If 200 urchins are counted in fewer than twenty quadrats, then we quantify fewer quadrats. |
| Availability date: | |
| Metadata version: | 1 |
| Keydate: | 2023-05-15 05:02:28+00 |
| Editdate: | 2023-05-15 05:03:39+00 |