Description
A data set on the species that make up the intertidal biotopes of Clarence Island (Tierra del Fuego Archipelago, south of the Strait of Magellan). This includes 50 identified species and the specific coordinates for each sampled location, with a total of 1400 georeferenced records. Mollusks were the most diverse taxon with 21 species, followed by algae (14 species). Sessile organisms such as the barnacles Elminius kingii and Austromegabalanus psittacus predominate in these ecosystems, followed by bivalve mollusks such as Choromytilus chorus and Mytilus chilensis, which together with Nacella magellanica and the alga Hildenbrandia sp. make up more than 50% of the total records. The inclusion of biotope patterns in this study complements the information on benthic marine flora and fauna in the intertidal zone, including new records for the coast in the Clarence Island area, which is within the boundary of the Kawésqar National Park.
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 1,400 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:
Aldea C, Hernández C, Novoa L, Olivera F (2023). Biodiversity of intertidal biotopes of Clarence Island (Tierra del Fuego Archipelago, S Chile). Version 1.4. Universidad de Magallanes. Occurrence dataset. https://gbif-chile.mma.gob.cl/ipt/resource?r=biodiversity-of-intertidal-biotopes-of-clarence-island-south-of-the-strait-of-magellan&v=1.4
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Universidad de Magallanes. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: a26b09cb-37c5-4b4a-87c8-501d55bfad6e. Universidad de Magallanes publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Chile.
Keywords
Occurrence; Observation
Contacts
- Metadata Provider ●
- Author ●
- Originator ●
- Point Of Contact
https://orcid.org/0000-0002-4473-6509
- Metadata Provider ●
- Originator
- Metadata Provider ●
- Originator
- Originator ●
- Principal Investigator
- Point Of Contact
Geographic Coverage
The coast of the Clarence Island, south of the Strait of Magellan, in an intensive sampling area along fjords and channels in the southeast of the island, covering <1 degree of latitude.
| Bounding Coordinates | South West [-54.29, -71.874], North East [-54.009, -71.647] |
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Taxonomic Coverage
All taxa were identified to the lowest possible taxonomic level. The dataset includes 50 species from nine different phyla, belonging four kingdoms.
| Kingdom | Animalia, Chromista, Fungi, Plantae |
|---|---|
| Phylum | Bryophyta, Arthropoda, Rhodophyta, Mollusca, Chlorophyta, Ochrophyta, Ascomycota, Cnidaria, Echinodermata |
| Class | Bryopsida, Thecostraca, Bangiophyceae, Florideophyceae, Bivalvia, Ulvophyceae, Phaeophyceae, Lecanoromycetes, Gastropoda, Polyplacophora, Anthozoa, Echinoidea, Asteroidea |
Temporal Coverage
| Start Date / End Date | 2020-03-04 / 2020-06-30 |
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Project Data
The present study implements an extensive sampling area, within which an area suitable for aquaculture is circumscribed, with the aim of achieving a precise description of the marine biotopes present in the different intertidal and shallow subtidal strata. In this way the area can be ecologically characterized based on existing coastal marine biodiversity. The foregoing is considered of great relevance for a future evaluation, as well as a technical tool for temporal contrast, for the management and conservation of coastal marine habitats characteristic of the system of channels and fjords of Southern Chile.
| Title | Determination of Intertidal Biotopes in Clarence Island |
|---|---|
| Identifier | GEOGAMA Research Project Code PIG-2023-MAG01 |
| Funding | GEOGAMA Research Project (PIG-2023-MAG01) |
The personnel involved in the project:
- Content Provider
- Content Provider
- Processor
- Processor
- Principal Investigator
Sampling Methods
The sampling was carried out with high-quality still camera photographs, which allow the identification of the species in the images. The entire bank of photographs was organized and classified by sampling season, summer and winter. All photos were taken by professionals from biological areas; special care was taken to capture the zone and representation of intertidal biotopes, following the recommendations of John et al. (2003) on intertidal biotopes.
| Study Extent | The sampling was carried out as part of an exploratory study of the biodiversity of Clarence Island, located in the Magallanes Region, extending into the Chilean Fjords and Channels Ecoregion (Spalding et al. 2007). The contributions of freshwater from the ice fields of glaciers surrounding Clarence Island and the geomorphology of the area cause the studied locality to have particular and unique marine biodiversity. A part of Clarence Island called Seno Duntze, located on the southeast coast of the Island towards the Cockburn Channel and exposed to the prevailing westerly winds, was described by Palacios Subiabre (2008), who indicated that the coast has an intertidal substrate with little slope, pebble and boulder block granulometry, and sedimentary type rocks. Macrocystis pyrifera is mentioned as the predominant algal species, along with several species of marine invertebrates (Palacios Subiabre 2008). |
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| Quality Control | The identification of taxa taken in the photograph was carried out meticulously, using the appropriate specific literature for each taxon plus comparison with samples in institutional collections. Species records and their respective geographic positions of the sites were entered into a spreadsheet, structured using the Standard Darwin Core format (Wieczorek et al. 2012) taxonomically adjusted according to the World Register of Marine Species (WoRMS 2022). The data were submitted in the Integrated Publishing Toolkit, following the standards of the Global Biodiversity Information Facility (GBIF). |
Method step description:
- Units of measurement in the study area were defined following a distance gradient, considering sites of interest in fjords and channels on the east coast of Clarence Island, just inside the southeastern boundary of Kawésqar National Park. These units were called transects. Stations were established in front of, around and in the immediate vicinity of each transect. Between 7 and 9 sampling units (stations) were defined, spaced approximately every 500 meters, which gave each transect a maximum coastline prospecting distance of 4.5 kilometers.
Bibliographic Citations
- John D, Paterson G, Evans N, Ramírez M, Spencer-Jones M, Báez P, Ferrero T, Valentine C, Reid D (2003) Manual de biotopos marinos de la Región de Aysén, Sur de Chile: Parque Nacional Laguna San Rafael, Estero Elefantes, Archipiélago de los Chonos y Katalalixar, 127 pp. Biodiversity Aysén Project, Department of Zoology, Natural History Museum, London. ISBN: 0-9546642-0-5
- Wieczorek J, Bloom D, Guralnick R, Blum S, Döring M, Giovanni R, Robertson T, Vieglais D (2012) Darwin Core: An evolving community-developed biodiversity data standard. PLOS One 7 (1). https://doi.org/10.1371/journal.pone.0029715
- WoRMS Editorial Board (2022). World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ. Accessed 2022-12-20. https://doi.org/10.14284/170
- Spalding MD, Fox HE, Allen GR, Davidson N, Ferdaña ZA, Finlayson M, Halpern BS, Jorge MA, Lombana A, Lourie SA, Martin KD, McManus E, Molnar J, Recchia CA, Robertson J (2007) Marine ecoregions of the world: a bioregionalization of coastal and shelf areas. BioScience 57: 573–583. https://doi.org/10.1641/B570707
- Palacios Subiabre M (2008) Estructura y dinámica de poblaciones naturales de Macrocystis pyrifera (Laminariaceae: Phaeophyta) en la región Magallanes, Chile. Tesis Licenciado en Ciencias de la Acuicultura. Universidad Católica de Temuco. https://dx.doi.org/10.13140/RG.2.2.29859.58406/1
Additional Metadata
Aldea C, Hernández C, Novoa L, Olivera F, Haeger C, Bello N (2023) Biotopes of the intertidal zone in Clarence Island (south of the Strait of Magellan). Biodiversity Data Journal 11: e105726. https://doi.org/10.3897/BDJ.11.e105726
| Alternative Identifiers | a26b09cb-37c5-4b4a-87c8-501d55bfad6e |
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| https://gbif-chile.mma.gob.cl/ipt/resource?r=biodiversity-of-intertidal-biotopes-of-clarence-island-south-of-the-strait-of-magellan |