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OAS accession Detail for 0278869
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| accessions_id: | 0278869 | archive |
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| Title: | Data describing interactions between colonies on St. John, Virgin Islands in 2014 (NCEI Accession 0278869) |
| Abstract: | This dataset contains biological and survey - biological data collected at Virgin Islands and Virgin Islands National Park during deployments Edmunds_StThomas and Edmunds_VINP from 2014-01-01 to 2014-12-31. These data include species. These data were collected by Howard Lasker of State University of New York at Buffalo as part of the "Ecology and functional biology of octocoral communities (VI Octocorals)" and "LTREB Long-term coral reef community dynamics in St. John, USVI: 1987-2019 (St. John LTREB)" projects. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2019-04-18. The following is the text of the dataset description provided by BCO-DMO: Data describing the types of interactions between colonies. Dataset Description: Data supporting Gambrel, B. and Lasker, H.R., 2016 |
| Date received: | 20190418 |
| Start date: | 20140101 |
| End date: | 20141231 |
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| West boundary: | -64.72988 |
| East boundary: | -64.72415 |
| North boundary: | 18.31685 |
| South boundary: | 18.3166 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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| Supplementary information: | Acquisition Description: Methodology from Gambrel, B. and Lasker, H.R., 2016 Octocoral colonies at East Cabritte and Europa Bay were surveyed to assess the spatial distribution and,in particular, the incidence of colonies in close proximity to each other. At each site, five 10 m × 1 m parallel belt transects were set up perpendicular to shore at10 m intervals starting at an arbitrarily selected point. Erythropodium caribaeorum and the encrusting form of Briareum asbestinum were not included in the surveys because they are not branching and, therefore,do not compete for space in the canopy. Each octocoral ≥5 cm in height was identified to species level in the field when possible; otherwise a small, 3 cm long sample was collected from colonies ≥15 cm tall for sclerite examination under a microscope. Images of the colony and a close-up image of the collected branch were also obtained. Identifications were based on Bayer (1961) and Sánchez (2009). Colonies were divided into 2 classes, those in close proximity to a neighbor, cases in which a colony’s branches or base were within 5 cm of another octocoral colony, and those more distantly spaced. When the branches of 2 colonies are At East Cabritte, which had a greater density of octocorals than Europa Bay, 4 randomly selected 1×1 m2 quadrats on each transect were surveyed while all 10 quadrats on each transect were surveyed atEuropa Bay. The height of each colony was measured to the nearest centimeter. Each colony was assessed for proximity to adjacent colonies and for effects of proximity, tissue damage to branches in close proximity to an adjacent colony and/or an asymmetric colony form. Only the octocorals with an asymmetric colony form attributable to the presence of another octocoral were scored as asymmetric in this study.Colonies that were asymmetric as a result of growing adjacent to a physical obstruction were not included as our focus was on the incidence of competition among octocorals. Examples of the different effects are shown in Fig. 1. |
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| Metadata version: | 1 |
| Keydate: | 2023-05-28 04:58:13+00 |
| Editdate: | 2023-05-28 04:58:45+00 |