Benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of Natural History

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 2,579 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, Alcaino S, Novoa L, Rosenfeld S (2019): Benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of Natural History. v1. Universidad de Magallanes. Dataset/Occurrence. https://gbif-chile.mma.gob.cl/ipt/resource?r=moluscos-estrecho-magallanes&v=1.0

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 Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 204130fb-8924-4601-b015-69411d9d7917.  Universidad de Magallanes publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Chile.

Keywords

Occurrence; literature; Magellanic Biogeographic Province; South Pacific; South Atlantic; species richness; benthos; Mollusca; Observation

Contacts

Cristian Aldea

• Metadata Provider ●
• Originator ●
• User ●
• Point Of Contact

Academic

Universidad de Magallanes

Av. Bulnes 01890

6200000 Punta Arenas

Non-US/Non-Canadian

CL

cristian.aldea@umag.cl

https://orcid.org/0000-0002-4473-6509

Sebastián Rosenfeld

• Originator ●
• Point Of Contact

Researcher

Universidad de Magallanes

Av. Bulnes 01890

6200000 Punta Arenas

Non-US/Non-Canadian

CL

sebastian.rosenfeld@umag.cl

Leslie Novoa

• Originator

Profesional

Universidad de Magallanes

Av. Bulnes 01890

6200000 Punta Arenas

Non-US/Non-Canadian

CL

Samuel Alcaino

• Originator

Student

Universidad de Magallanes

Av. Bulnes 01890

6200000 Punta Arenas

Non-US/Non-Canadian

CL

Geographic Coverage

One of the most important channels in the Magellanic Province is the Strait of Magellan, where most historical reports of mollusks are focused. This extensive channel connects the Pacific and Atlantic Oceans and is considered the most important one of the province. It is influenced by water masses of the Pacific, Atlantic and Southern Oceans, and it possess several geological characteristics derived from the last glaciation (Antezana 1999).

Taxonomic Coverage

To make the list of mollusks as complete as possible, information was gathered from all the available scientific publications that have sampled or reviewed benthic marine mollusks in the Magellanic Province, from the expedition of the HMS Beagle in the 19th century (King and Broderip 1832) to the present. A total of 323 articles were reviewed, of which 146 contained species within the Magellanic Province. The records and their respective geographical positions were entered into a spreadsheet structured with the Darwin Core Standard (Wieczorek et al. 2012), adjusted taxonomically according to the MolluscaBase (2019) and the revisions of classification and systematics of gastropods (Bouchet et al. 2017), bivalves (Nevesskaja 2009) and polyplacophorans (Sirenko 2006).

Temporal Coverage

Project Data

Diversity of benthic molluscs and crustaceans in the Strait of Magellan: biogeography, nestedness and comparative endemism in the Magellan Biogeographic Province

The personnel involved in the project:

Cristian Aldea

• Principal Investigator

https://orcid.org/0000-0002-4473-6509

Sebastián Rosenfeld

• Author

Sampling Methods

To make the list of mollusks as complete as possible, information was gathered from all the available scientific publications that have sampled or reviewed benthic marine mollusks in the Magellanic Province, from the expedition of the HMS Beagle in the 19th century (King and Broderip 1832) to the present. A total of 323 articles were reviewed, of which 146 contained species within the Magellanic Province. The records and their respective geographical positions were entered into a spreadsheet structured with the Darwin Core Standard (Wieczorek et al. 2012), adjusted taxonomically according to the MolluscaBase (2019) and the revisions of classification and systematics of gastropods (Bouchet et al. 2017), bivalves (Nevesskaja 2009) and polyplacophorans (Sirenko 2006).

Method step description:

1. The Strait of Magellan was divided into 420 quadrants of 6x6 minutes of latitude and longitude. The records located within this area were analyzed (Fig. 1), taking into account their georeference or approximate location. This analysis was developed using a tools for Google Earth (https://www.earthpoint.us), which transforms XLS extension files (Excel format) to KML (files that contains geographic data). In total, 108 articles provided records for the Strait of Magellan. Dubious records were counted and also the species that were recorded only once in history. Criteria were followed to determine which species records are doubtful: species that were cited once and later questioned in taxonomic revisions or never reported again; species that greatly exceed their distribution limit and do not appear in taxonomic revisions or alpha diversity studies; and species that have a huge geographical discontinuity and are not explained or figured in the article. A new matrix was elaborated with the Darwin Core standard from the database, with presence-absence data of each taxon per quadrant entered as 1 or 0, respectively. The quadrants with no species were removed from the matrix and the species considered doubtful and the taxa with imprecise locations were not included in the matrix. However, these were considered in the quantification of total richness. On the other hand, the records up to or above genus level (registered as "indet." or "sp.") were not considered as valid species for both species richness values and estimation models, except for those in which the author commented that it could be a new species.

Bibliographic Citations

1. Antezana T (1999) Hydrographic features of Magellan and Fuegian inland passages and adjacent Subantarctic waters. Scientia Marina 63(S1): 23–34.
2. Bouchet P, Rocroi J, Hausdorf B, Kaim A, Kano Y, Nützel A, Parkhaev P, Schrödl M Strong E (2017) Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia, 61 (1–2), 1–526.
3. King PP, Broderip WJ (1832) Description of the Cirripedia, Conchifera and Mollusca, in a collection formed by the officers of H.M.S. Adventure and Beagle employed between the years 1826 and 1830 in surveying the southern coasts of South America. Zoological Journal 5: 332–349.
4. MolluscaBase eds. (2019) MolluscaBase. Accessed at https://www.molluscabase.org on 2019-07-31.
5. Nevesskaja L (2009) Principles of systematics and the system of bivalves. Paleontological Journal, 43 (1): 1–11.
6. Sirenko BI (2006) New Outlook оn the System of Chitons (Mollusca: Polyplacophora). Venus, 65 (1–2): 27–49.
7. 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): e29715.

Additional Metadata