Biodiversity of intertidal biotopes of Clarence Island (Tierra del Fuego Archipelago, S Chile)
Citation
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://doi.org/10.15468/he5828 accessed via GBIF.org on 2024-09-05.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.Sampling Description
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).Sampling
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.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 steps
- 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.
Additional info
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.e105726Taxonomic Coverages
All taxa were identified to the lowest possible taxonomic level. The dataset includes 50 species from nine different phyla, belonging four kingdoms.
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Animaliarank: kingdom
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Chromistarank: kingdom
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Fungirank: kingdom
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Plantaerank: kingdom
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Bryophytarank: phylum
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Arthropodarank: phylum
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Rhodophytarank: phylum
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Molluscarank: phylum
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Chlorophytarank: phylum
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Ochrophytarank: phylum
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Ascomycotarank: phylum
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Cnidariarank: phylum
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Echinodermatarank: phylum
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Bryopsidarank: class
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Thecostracarank: class
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Bangiophyceaerank: class
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Florideophyceaerank: class
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Bivalviarank: class
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Ulvophyceaerank: class
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Phaeophyceaerank: class
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Lecanoromycetesrank: class
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Gastropodarank: class
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Polyplacophorarank: class
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Anthozoarank: class
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Echinoidearank: class
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Asteroidearank: class
Geographic Coverages
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.
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. - http://dx.doi.org/10.13140/RG.2.2.29859.58406/1
Contacts
Cristian Aldeaoriginator
position: Lecturer
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
userId: https://orcid.org/0000-0002-4473-6509
Cristina Hernández
originator
position: Research assistant
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
Leslie Novoa
originator
position: Research assistant
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
Francisco Olivera
originator
position: Technical manager
GEOGAMA
Av. Avenida Eusebio Ibar 1345-A
Puerto Aysén
6000270
Aysén
CL
Telephone: 56 9 68343145
email: francisco.olivera@geogama.cl
homepage: http://www.geogama.cl
Cristian Aldea
metadata author
position: Lecturer
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
userId: https://orcid.org/0000-0002-4473-6509
Cristina Hernández
metadata author
position: Research assistant
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
Leslie Novoa
metadata author
position: Research assistant
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
Cristian Aldea
author
position: Lecturer
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
userId: https://orcid.org/0000-0002-4473-6509
Francisco Olivera
principal investigator
position: Technical manager
GEOGAMA
Av. Avenida Eusebio Ibar 1345-A
Puerto Aysén
6000270
Aysén
CL
Telephone: 56 9 68343145
email: francisco.olivera@geogama.cl
homepage: http://www.geogama.cl
Christian Haeger F.
point of contact
position: General manager
GEOGAMA
Av. Avenida Eusebio Ibar 1345-A
Puerto Aysén
6000270
Aysén
CL
Telephone: 56 9 68343145
email: christian.haeger@geogama.cl
homepage: http://www.geogama.cl
Cristian Aldea
administrative point of contact
position: Lecturer
Universidad de Magallanes
Av. Bulnes 01855
Punta Arenas
6210427
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
userId: https://orcid.org/0000-0002-4473-6509