Description
Data was collected at Aldabra Atoll (Seychelles) by SIF staff and volunteers as part of the SIF Aldabra Reef Monitoring (ARM) programme at 12 monitoring sites between 2014 and 2021. Nine sites are on the seaward reef with permanently marked transects at both 5 m and 15 m water depth; three sites are inside the lagoon with permanently marked transects at 2 m water depth. Fish visual census surveys were conducted along one to three 50 × 4 m belt transects (i.e., one transect = 200 m2; 10 m gap between replicate transects) marked by surveyors with tape measures. The first transect was always the permanently marked transect; subsequent replicate transects were surveyed along the same compass bearing and following the same depth contour as the permanent transect. All transects of the same depth at each site were surveyed during the same dive. These data also contain occurrence data from BRUV and RUV surveys done in 2020, as well as subsistence fishery data (most recent catch events per species between 2016 and 2020) sent directly from the Seychelles Islands Foundation.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 11,809 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
A'Bear L, Bielsa M, Burt A J, Chong-Seng K, Haupt P, Koester A, Earl C (2023). Reef fish abundance, size and biomass from Aldabra Atoll (Seychelles) between 2014 and 2021 collected by the Seychelles Islands Foundation. Version 2.0. OBIS Secretariat. Occurrence dataset. https://doi.org/10.25607/hpsg9j
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is OBIS Secretariat. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 34f52594-5857-44a2-aa8b-8b59c42f2ee2. OBIS Secretariat publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Keywords
Occurrence
Contacts
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
Geographic Coverage
Aldabra Atoll
| Bounding Coordinates | South West [-9.507, 46.187], North East [-9.351, 46.538] |
|---|
Taxonomic Coverage
Fishes
| Superclass | Agnatha |
|---|---|
| Unranked | Chondrichthyes, Osteichthyes |
Sampling Methods
No Description available
Method step description:
- See Github Project and R Notebook for dataset construction methods
Bibliographic Citations
- A'Bear, Luke; Bielsa, Maria; Burt, April Jasmine; Chong-Seng, Karen; Haupt, Philip; Koester, Anna; et al. (2023). Reef fish abundance, size and biomass from Aldabra Atoll (Seychelles) between 2014 and 2021 collected by the Seychelles Islands Foundation. Figshare. Dataset. https://doi.org/10.6084/m9.figshare.22792580.v1
Additional Metadata
marine, harvested by iOBIS
| Purpose | These data were made accessible through UNESCO's eDNA Expeditions project to mobilize available marine species and occurrence datasets from World Heritage Sites. |
|---|---|
| Alternative Identifiers | 10.25607/hpsg9j |
| 34f52594-5857-44a2-aa8b-8b59c42f2ee2 | |
| https://ipt.obis.org/secretariat/resource?r=aldabra-seychelles-island-2023 |