Elasmobranquios de la Isla Cayo Serranilla durante la Expedición Seaflower 2017 - Proyecto Colombia BIO

Latest version published by Fundación Colombia Azul on May 15, 2018 Fundación Colombia Azul

In response to population declines noted for many sharks and other elasmobranch species around the world, protecting them from overexploitation has become a global priority. However, the necessary data to assess the diversity and abundance of elasmobranchs has often hindered efforts to effectively restore and protect such species. Many reef surveys around the world have been conducted by scuba divers, although many studies have exposed the flaws and biases of this type of surveys for species such as elasmobranchs. Sampling of these species has traditionally been resource and time intensive due to the need to capture sharks or rays on lines. Recently, advances in video technology have allowed the deployment BRUVs. This technique involves positioning a bait source in front of an underwater video camera and quantifying the fish that are observed in the field of view over a standard sampling period and are an ideal way to quickly, and inexpensively, sample populations of relatively low-density predators like sharks and rays. Due to the remote location of Isla Cayo Serranilla, in the northernmost region of the Seaflower Biosphere Reserve, there is a lack of knowledge of elasmobranch species and their abundance in the area. In order to estimate reef elasmobranch diversity and relative abundance in the Colombian Caribbean at Isla Cayo Serranilla and detect possible bright spots in the region, 52 BRUVs were deployed on the fore-reef and the inner lagoon. Depth was standardized between 8 and 30 m and deployments were performed using standardized pre-weighted bait. Videos will be watched, and species and the maximum number of reef species observed in a single frame (Nmax) will be recorded. This estimate (Nmax) is similar to the Catch per Unit of Effort (CPUE) and will be used to assess the relative abundance of reef shark at Isla Cayo Serranilla.

Conduct a 2-week Baited Remote Underwater Video Survey (BRUV) of reef elasmobranch diversity and relative abundance in the Colombian Caribbean at Isla Cayo Serranilla (San Andrés Archipelago) and detect possible bright spots in the region. These key baseline data will support future studies on elasmobranchs in other areas of the Seaflower Biosphere Reserve and fill in gaps on the status of elasmobranch populations in the region. This will be combined with large existing BRUV datasets collected in other key locations around the world for a global analysis through the Global FinPrint project (www.globalfinprint.org).

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 95 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.

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Data as a DwC-A file download 95 records in Spanish (8 KB) - Update frequency: unknown
Metadata as an EML file download in English (12 KB)
Metadata as an RTF file download in English (11 KB)

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:

Fundación Colombia Azul, Universidad de los Andes & Florida International University (2017). Elasmobranquios de la Isla Cayo Serranilla durante la Expedición Seaflower 2017 - Proyecto Colombia BIO. Versión 1.0. 95 registros, aportados por: Cardeósa C, Monsalve S y Cáceres C. Conjunto de datos/Registros biológicos.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Fundación Colombia Azul. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 56c48715-9f8b-445a-98b7-cada12902027.  Fundación Colombia Azul publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Colombian Biodiversity Information System.

Keywords

Occurrence; Observation; COLOMBIA BIO; SEAFLOWER

Contacts

Who created the resource:

Diego Cardeñosa
Fundador
Fundación Colombia Azul Bogotá, D.C. Bogotá, D.C. CO

Who can answer questions about the resource:

Alexandra Chadid
Teniente - Jefe Área de Asuntos Marinos y Costeros
Comisión Colombiana del Océano Carrera 54 No. 26 - 50, Edificio DIMAR - Cuarto piso Bogotá, D.C. Bogotá, D.C. CO
http://www.cco.gov.co

Who filled in the metadata:

Diego Cardeñosa
Fundador
Fundación Colombia Azul Bogotá, D.C. Bogotá, D.C. CO

Who else was associated with the resource:

Author
Diego Cardeñosa
Fundador
Fundación Colombia Azul Bogotá, D.C. Bogotá, D.C. CO
Author
Sabrina Monsalve
Investigadora
Universidad de los Andes Bogotá, D.C. Bogotá, D.C. CO
Author
Camila Cáceres
Investigadora
Florida International University florida US

Geographic Coverage

Isla Cayo Serranilla, Reserva de la Biósfera Seaflower, Colombia.

Bounding Coordinates South West [15.733, -79.933], North East [15.91, -79.746]

Project Data

No Description available

Title Caracterización de biodiversidad para el fortalecimiento de colecciones científicas y la generación de información genética de la biodiversidad colombiana, en el marco del programa Colombia BIO
Funding Colombia BIO. Convenio especial de cooperación No. 341 del 2017. Aunar esfuerzos para caracterizar la biodiversidad en áreas de interés científico y con baja información biológica, para el fortalecimiento de las colecciones científicas y la generación de información genética de la biodiversidad Colombiana, en el marco del programa Colombia BIO.

The personnel involved in the project:

Point Of Contact
Felipe García

Sampling Methods

Elasmobranch diversity and abundance was surveyed on the fore-reef and the inner lagoon selecting sites randomly within the defied boundary of the study reef.

Study Extent Isla Cayo Serranilla, Reserva de la Biósfera Seaflower, Colombia.

Method step description:

  1. Fiftytwo BRUVs were deployed consisting of a video camera (GoPro) mounted on a metal frame with a cage with pre-weighted bait source (e.g. 1 kg of sardines) attached to a metal pole in the camera’s field of view. Each BRUV was deployed using a 50 m rope from the boat and in-water personnel to orient the BRUV facing down current between 5 to 30 m of depth. Cameras recorded for standardized 90 minutes after settling to the bottom. No BRUVs were simultaneously deployed within 1000m of one another. Units were manually retrieved using the rope, which terminates in a small buoy to aid in relocation. At both the start and end of each deployment environmental variables such as underwater visibility, temperature, salinity, dissolved oxygen, wind speed and wind direction, bottom depth, cloud cover and surface wave chop), were recorded.

Additional Metadata

Purpose Objective 1: Complete a survey of reef elasmobranch (sharks and batoids) relative abundance and diversity in coral reef ecosystems along Isla Cayo Serranilla (San Andrés Archipelago) using BRUVs. • Objective 2: Include Colombia’s Caribbean reefs into Global Fin-Print project, whose overarching goal is to consolidate existing and newly collected BRUV data into a single analysis, producing the first globally standard survey of elasmobranch density and diversity over the world’s continental and insular shelves, focusing on coral reef ecosystems. • Objective 3: Frame the results in such a way to identify contemporary hotspots of reef elasmobranch abundance and diversity and highlight the differences between pristine and impacted sites for all habitat types.
Alternative Identifiers doi:10.15472/ohqepf
56c48715-9f8b-445a-98b7-cada12902027
http://ipt.biodiversidad.co/sibm/resource?r=fca_elasmo_seaflower_2017