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Austrochlamys natans and Zygochlamys patagonica in the Magellanic Region

Citation

Aldea C (2020). Austrochlamys natans and Zygochlamys patagonica in the Magellanic Region. Version 1.2. Universidad de Magallanes. Occurrence dataset https://doi.org/10.15468/9nqxs7 accessed via GBIF.org on 2021-03-01.

Description

This data is in the framework of the following entitled paper: "Unveiling the unknown phylogenetic position of the commercial scallop Austrochlamys natans (Philippi, 1845): implications for the fishery and conservation of the "Ostión del Sur" and “Ostión Patagonico” Zygochlamys patagonica (King, 1832) in the Magellanic Region."

Sampling Description

Study Extent

Magellanic Region

Sampling

Pectinids specimens were collected between 2016 and 2019 by hand in SCUBA diving or apnea, in the shallow subtidal at five different localities in the Magellanic Region between 50ºS and 56°S: 1) Parker Island (Reina Adelaida Archipelago), 2) Montañas Fjord (Ultima Esperanza), 3) Ballena Fjord (western Magellan Strait), 4) Pia Fjord (Beagle Channel), and 5) Diego Ramirez Island. All specimens were preserved in ethanol 95° for subsequent genetic analyses.

Method steps

  1. An exhaustive review of morphological literature on both species was carried out to gather the best identification criteria (Suppl. Mat. 1). The selected character described by Jonkers (2003) is the relation between the depth of the byssal notch (BN) and the height of the right valve (RV). To measure these characters, the right valve of all collected specimens was photographed, and the valve height (VH) and the depth of the byssal notch (BND) were measured.

Taxonomic Coverages

Pectinidae
  1. Austrochlamys natans
    common name: ostión del sur | scallop rank: species
  2. Zygochlamys patagonica
    common name: ostión patagónico | scallop rank: species

Geographic Coverages

Magellanic Region between 50ºS and 56°S and those data in Jonkers (2003)

Bibliographic Citations

  1. Jonkers, H. A. Late Cenozoic-Recent Pectinidae (Mollusca: Bivalvia) of the Southern Ocean and neighbouring regions. vol. 5 (Backhuys, 2003). -

Contacts

Cristian Aldea
originator
Universidad de Magallanes
Av. Bulnes 01890
Punta Arenas
6200000
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
Cristian Aldea
metadata author
Universidad de Magallanes
Av. Bulnes 01890
Punta Arenas
6200000
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
Cristián Aldea
user
email: cristian.aldea@umag.cl
Cristian Aldea
administrative point of contact
Universidad de Magallanes
Av. Bulnes 01890
Punta Arenas
6200000
Non-US/Non-Canadian
CL
email: cristian.aldea@umag.cl
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